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- Author:
- Kevin W. Turner; Michelle D. Pearce; Daniel D. Hughes
- Source:
- Remote Sensing 2021 v.13 no.2 pp. -
- ISSN:
- 2072-4292
- Subject:
- biogeochemical cycles; bulk density; classification; clay; climate; crows; data collection; duration; ice; infrastructure; knowledge; lakes; landscapes; light intensity; models; monitoring; nitrogen; permafrost; prediction; rain; refining; remote sensing; rivers; sediment transport; sediments; shorelines; soil organic carbon; summer; surveys; total nitrogen; travel; unmanned aerial vehicles; volume; Arctic region; Yukon Territory
- Abstract:
- ... Ice-rich permafrost landscapes are sensitive to ongoing changes in climate. Permafrost retrogressive thaw slumps (RTSs) represent one of the more abrupt and prolonged disturbances, which occur along Arctic river and lake shorelines. These features impact local travel and infrastructure, and there are many questions regarding associated impacts on biogeochemical cycling. Predicting the duration and ...
- DOI:
- 10.3390/rs13020171
- https://doi.org/10.3390/rs13020171
- Author:
- Valensi Kautsar; Weiguo Cheng; Keitaro Tawaraya; Susumu Yamada; Kazunobu Toriyama; Kazuhiko Kobayashi
- Source:
- Soil science and plant nutrition 2020 v.66 no.1 pp. 144-151
- ISSN:
- 1747-0765
- Subject:
- Andosols; Japan; biogeochemical cycles; bulk density; carbon; degradation; mineralization; nitrogen; organic production; pH; paddies; plant nutrition; rice; soil carbon; soil sampling; total nitrogen
- Abstract:
- ... This study aimed at understanding whether and how long-term organic rice farming affects soil carbon (C) and nitrogen (N) stocks and their mineralization potentials in submerged rice paddies in Tochigi, Japan. An incubation experiment was carried out to assess the impacts of internal nutrient cycling after organic farming (OF) for 4–5 years (4OF), 8–9 years (8OF), and 12 years (12OF), compared wit ...
- DOI:
- 10.1080/00380768.2019.1705739
- https://doi.org/10.1080/00380768.2019.1705739
- Author:
- Yuqian Li; Junwei Ma; Chen Xiao; Yijia Li
- Source:
- Journal of soils and sediments 2020 v.20 no.4 pp. 1970-1982
- ISSN:
- 1439-0108
- Subject:
- biogeochemical cycles; bulk density; carbon; cation exchange capacity; clay; climate change; climatic factors; cropland; evapotranspiration; grasslands; land use; least squares; linear models; meteorological data; nitrogen; nutrient content; nutrients; phosphorus; potassium; relative humidity; sand fraction; shrublands; silt; silt fraction; soil nutrients; soil organic matter; soil pH; soil texture; stoichiometry; temperature; terrestrial ecosystems; volumetric water content; watersheds; wind speed; woodlands; China
- Abstract:
- ... PURPOSE: Soil nutrients, elemental stoichiometry, and their associated environmental control play important roles in nutrient cycling. The objectives of this study were (1) to investigate soil nutrients and elemental stoichiometry, especially potassium and its associative elemental stoichiometry with other nutrients under different land uses in terrestrial ecosystems; (2) to discuss the impacts of ...
- DOI:
- 10.1007/s11368-020-02583-6
- https://doi.org/10.1007/s11368-020-02583-6
- Author:
- Xincai Qiu; Haibin Wang; Daoli Peng; Xin Liu; Fan Yang; Zhe Li; Shun Cheng
- Source:
- Forest ecology and management 2020 v.462 pp. 117984
- ISSN:
- 0378-1127
- Subject:
- Larix gmelinii var. principis-rupprechtii; acid phosphatase; beta-glucosidase; biogeochemical cycles; bulk density; carbon; carbon nitrogen ratio; electrical conductivity; forest plantations; leaves; microbial biomass; nitrogen; nutrient content; nutrient resorption (physiology); nutrients; pH; phosphorus; plant litter; resorption; soil enzymes; soil fertility; soil microorganisms; soil properties; soil sampling; soil water; stoichiometry; China
- Abstract:
- ... Carbon (C):nitrogen (N):phosphorous (P) stoichiometry and nutrient resorption play an important role in terrestrial biogeochemical cycling and functioning. However, little information is available about the changes in C:N:P stoichiometry and nutrient resorption following thinning in plantation forests. Here, to reveal how thinning affects the C:N:P stoichiometry and nutrient resorption and their r ...
- DOI:
- 10.1016/j.foreco.2020.117984
- https://doi.org/10.1016/j.foreco.2020.117984
- Author:
- Aida López-Sánchez; Ramón Perea; Sonia Roig
- Source:
- Global ecology and conservation 2019 v.20 pp. e00705
- ISSN:
- 2351-9894
- Subject:
- Ciconia ciconia; biogeochemical cycles; birds; botanical composition; bulk density; canopy; conservation programs; ecosystem services; ecotones; forage quality; grasses; habitats; legumes; nests; net primary productivity; nitrogen; phosphorus; plant communities; potassium; social welfare; soil nutrients; soil organic carbon; threatened species; trees; woodlands; Spain
- Abstract:
- ... Grazed woodlands provide important ecosystem services (ESs) that contribute to human well-being. Conservation towards protected bird species may sometimes threaten the preservation of protected habitats or the persistence of other threatened species. Studies evaluating the effect of species conservation programs on ecosystem services are yet unusual. Here, we evaluated the effect of white storks ( ...
- DOI:
- 10.1016/j.gecco.2019.e00705
- https://doi.org/10.1016/j.gecco.2019.e00705
- Author:
- Peter Lindtner; Erika Gömöryová; Dušan Gömöry; Slavomír Stašiov; Vladimír Kubovčík
- Source:
- Geoderma 2019 v.339 pp. 85-93
- ISSN:
- 0016-7061
- Subject:
- Spermophilus citellus; aeration; biogeochemical cycles; bulk density; calcium; carbon; ecosystems; grassland soils; grasslands; microbial communities; mineralization; nitrogen content; pH; phosphorus; potassium; rodents; soil density; soil fertility; soil sampling; sulfur; Carpathian region; Southern European region
- Abstract:
- ... Fossorial rodents through their burrowing activities are important disturbance agents in grassland ecosystems. The European ground squirrel (Spermophilus citellus) is a medium-sized ground squirrel occurring in central and south-eastern Europe. The aim of the study was to explore changes of physico-chemical and biological soil properties during mound development created by the European ground squi ...
- DOI:
- 10.1016/j.geoderma.2018.12.043
- https://doi.org/10.1016/j.geoderma.2018.12.043
- Author:
- Yu Song; Yufei Yao; Xin Qin; Xiaorong Wei; Xiaoxu Jia; Mingan Shao
- Source:
- Geoderma 2019 pp. -
- ISSN:
- 0016-7061
- Subject:
- afforestation; biogeochemical cycles; bulk density; cropland; inorganic carbon; land use change; models; nitrogen; physicochemical properties; porosity; saturated hydraulic conductivity; semiarid soils; soil carbon; soil depth; soil electrical conductivity; topsoil; total nitrogen; woodlands; China
- Abstract:
- ... Soil carbon (C) and nitrogen (N) combining with physical and chemical properties play important roles in terrestrial C and nutrient cycling; however, how C and N in deep soils respond to land-use change is less understood, hindering the precise evaluation of soil carbon dynamics and budgets. Here, we present results regarding soil C, N and related soil properties at 0–500 cm depth as affected by a ...
- DOI:
- 10.1016/j.geoderma.2019.113940
- https://doi.org/10.1016/j.geoderma.2019.113940
- Author:
- P. B. DeLaune; P. Mubvumba; K. L. Lewis; J. W. Keeling
- Source:
- Soil Science Society of America journal 2019 v.83 no.5 pp. 1451-1458
- ISSN:
- 0361-5995
- Subject:
- biogeochemical cycles; bulk density; conventional tillage; cotton; cover crops; cropping systems; growing season; nitrate nitrogen; no-tillage; resistance to penetration; rye; semiarid zones; soil compaction; soil function; soil organic carbon; soil properties; water conservation; High Plains (United States); Texas
- Abstract:
- ... Core Ideas Soil nitrate was lower due to a cereal rye cover crop during the active growing season. Infiltration was greater for no‐till with rye cover crop than conventional tillage. After 17 years, no‐till with rye had greater soil organic C than conventional tillage in surface layers. Soil organic C did not differ between no‐till with rye and conventional tillage for subsurface layers. No‐till w ...
- DOI:
- 10.2136/sssaj2019.03.0069
- https://doi.org/10.2136/sssaj2019.03.0069
- Author:
- Lea Carlesso; Andrew Beadle; Samantha M. Cook; Jess Evans; Graham Hartwell; Karl Ritz; Debbie Sparkes; Lianhai Wu; Phil J. Murray
- Source:
- Applied soil ecology 2019 v.134 pp. 31-37
- ISSN:
- 0929-1393
- Subject:
- Lolium; agricultural soils; biogeochemical cycles; bulk density; grasses; microbial activity; nutrients; organic matter; soil biota; soil compaction; soil degradation; soil density; soil penetration resistance; soil quality; soil structure; straw; traffic
- Abstract:
- ... Soil compaction is a major threat to agricultural soils. Heavy machinery is responsible for damaging soil chemical, physical and biological properties. Among these, organic matter decomposition, which is predominantly mediated by the soil biota, is a necessary process since it underpins nutrient cycling and the provision of plant nutrients. Understanding factors which impact the functionality of t ...
- DOI:
- 10.1016/j.apsoil.2018.10.004
- https://doi.org/10.1016/j.apsoil.2018.10.004
- Author:
- Jinsong Wang; Jian Sun; Zhen Yu; Yong Li; Dashuan Tian; Bingxue Wang; Zhaolei Li; Shuli Niu
- Source:
- Global ecology and biogeography 2019 v.28 no.4 pp. 442-455
- ISSN:
- 1466-822X
- Subject:
- alpine grasslands; atmospheric precipitation; biogeochemical cycles; biotic factors; bulk density; clay fraction; climatic factors; databases; drought; edaphic factors; global change; meadows; models; nitrogen; sand fraction; savannas; soil density; soil organic carbon; soil texture; structural equation modeling; temperature; terrestrial ecosystems; total nitrogen; tundra
- Abstract:
- ... AIM: Root turnover is an important process determining carbon and nutrient cycling in terrestrial ecosystems. It is an established fact that root turnover is jointly regulated by climatic, edaphic and biotic factors. However, the relative importance of these forces in determining the global patterns of root turnover time is far from clear. LOCATION: Global. TIME PERIOD: 1946–2017. MAJOR TAXA STUDI ...
- DOI:
- 10.1111/geb.12866
- https://doi.org/10.1111/geb.12866
- Author:
- Qiang Zhang; Qing Liu; Huajun Yin; Chunzhang Zhao; Lin Zhang; Guoying Zhou; Chunying Yin; Zhijun Lu; Gaoming Xiong; Yuelin Li; Jiaxiang Li; Wenting Xu; Zhiyao Tang; Zongqiang Xie
- Source:
- Journal of plant ecology 2018 v.12 no.2 pp. 346-357
- ISSN:
- 1752-993X
- Subject:
- Ericaceae; altitude; biogeochemical cycles; bulk density; carbon; climate; ecosystems; latitude; leaf characteristics; leaves; linear models; nitrogen; phosphorus; shrublands; shrubs; soil carbon; soil properties; stoichiometry; temperature; China
- Abstract:
- ... Carbon (C), nitrogen (N) and phosphorus (P) stoichiometry strongly affect functions and nutrient cycling within ecosystems. However, the related researches in shrubs were very limited. In this study, we aimed to investigate leaf stoichiometry and its driving factors in shrubs, and whether stoichiometry significantly differs among closely related species. We analyzed leaf C, N and P concentrations ...
- DOI:
- 10.1093/jpe/rty033
- https://doi.org/10.1093/jpe/rty033
- Author:
- Paola Baldivieso-Freitas; José M. Blanco-Moreno; Laura Armengot; Lourdes Chamorro; Joan Romanyà; Francisco Xavier Sans
- Source:
- Soil & tillage research 2018 v.180 pp. 10-20
- ISSN:
- 0167-1987
- Subject:
- green manures; crop yield; carbon sinks; lentils; biogeochemical cycles; nitrogen content; plowing; bulk density; soil microorganisms; soil fertility; organic production; soil organic matter; soil quality; soil; chickpeas; weeds; crop-weed competition; winter wheat; crop rotation; nutrient availability; microbial biomass; plows; agricultural conservation practice; Triticum aestivum subsp. spelta; Mediterranean region; Spain
- Abstract:
- ... Conservation agriculture and organic farming are two alternative strategies that aim to improve soil quality and fertility in arable cropping systems through reducing tillage intensity, maintaining soil cover and increasing nutrient recycling, using farmyard and green manures. However, these practices can increase weed infestation or decrease nutrient availability. The objectives of this study wer ...
- DOI:
- 10.1016/j.still.2018.02.006
- https://doi.org/10.1016/j.still.2018.02.006
- Author:
- R.D. DeLaune; J.R. White; T. Elsey-Quirk; H.H. Roberts; D.Q. Wang
- Source:
- Organic geochemistry 2018 v.123 pp. 67-73
- ISSN:
- 0146-6380
- Subject:
- biogeochemical cycles; bulk density; carbon; cesium; freshwater; gases; global change; land use change; models; nitrogen; organic matter; radiocarbon dating; radionuclides; river deltas; sediment deposition; sediments; water quality; wetland soils; wetlands; Louisiana; Mississippi River
- Abstract:
- ... Coastal wetlands can serve as a considerable sink for carbon (C) gases. However, the capacity for wetlands to serve as more permanent C and N sinks over the long term is less clear given the time dependence of sediment deposition, organic matter decomposition, and anthropogenic land use change. In this study, we compare the short-term (decadal scale) and long-term (millennial scale) C and N accumu ...
- DOI:
- 10.1016/j.orggeochem.2018.06.007
- https://doi.org/10.1016/j.orggeochem.2018.06.007
- Author:
- Gaurav Mishra; Krishna Giri; Shaliesh Pandey
- Source:
- National Academy science letters 2018 v.41 no.5 pp. 265-268
- ISSN:
- 0250-541X
- Subject:
- Alnus nepalensis; biodiversity; biogeochemical cycles; bulk density; case studies; fallow; land use; nutrients; phosphorus; potassium; risk; soil erosion; soil fertility; soil nutrients; soil organic carbon; soil pH; topsoil; Himalayan region; India
- Abstract:
- ... Assessment of soil nutrients and fertility status for three land use systems was carried out in Mokokchung, Nagaland, which lies under Eastern Himalayan region. Soil fertility indicators, viz., bulk density, soil pH, soil organic carbon, available Nitrogen (N), available Phosphorus (P), and available Potassium (K) were analyzed for Alder based fallow Jhum, Jhum and fallow Jhum lands, using standar ...
- DOI:
- 10.1007/s40009-018-0668-4
- https://doi.org/10.1007/s40009-018-0668-4
- Author:
- Andrey Alekseev; Tatiana Alekseeva; Pavel Kalinin; Mieczysław Hajnos
- Source:
- Soil & tillage research 2018 v.180 pp. 38-47
- ISSN:
- 0167-1987
- Subject:
- X-ray diffraction; acidity; bioactive properties; biogeochemical cycles; bulk density; carbon; carbon dioxide; clay; clay fraction; climate; cropland; deciduous forests; ecosystems; forest soils; grasslands; greenhouse gas emissions; humidity; illite; land use change; microbial biomass; monitoring; montmorillonite; muscovite; organic matter; pH; porosity; silt; soil profiles; soil respiration; soil sampling; surface area; vermiculite; water content; weathering; Russia
- Abstract:
- ... Ecosystem in responses to land use change create feedbacks in soils and ecological processes in Critical Zone (CZ). The identification and quantification of such changes is needed as a part of understanding the relationship between climate, CO2 emission, humidity, biological activity, soil carbon, surface redox, and plant nutrient cycling and lithology, mineralogy, biogeochemistry of bedrocks. The ...
- DOI:
- 10.1016/j.still.2018.02.008
- https://doi.org/10.1016/j.still.2018.02.008
- Author:
- Martina Cambi; Donatella Paffetti; Cristina Vettori; Rodolfo Picchio; Rachele Venanzi; Enrico Marchi
- Source:
- European journal of forest research 2017 v.136 no.2 pp. 205-215
- ISSN:
- 1612-4669
- Subject:
- Pinus pinea; U.S. Soil Taxonomy; biogeochemical cycles; bulk density; forestry; forests; logging; microbial communities; nitrogen fixation; porosity; resistance to penetration; sandy loam soils; sandy soils; soil density; soil ecosystems; soil sampling; statistical analysis; texture; variance; Italy
- Abstract:
- ... Forest harvesting operations may have a significant impact on soil physical properties by reducing its porosity and organic functions. Soil variations, in particular bulk density and total porosity, caused by external perturbations as soil becomes compacted due to machinery passes, can lead to changes in biogeochemical cycles that have consequences on soil ecosystems. This study investigated how t ...
- DOI:
- 10.1007/s10342-016-1020-5
- https://doi.org/10.1007/s10342-016-1020-5
- Author:
- Debjani Sihi; Biswanath Dari; Dinesh K. Sharma; Himanshu Pathak; Lata Nain; Om Parkash Sharma
- Source:
- Zeitschrift für Pflanzenernährung und Bodenkunde 2017 v.180 no.3 pp. 389-406
- ISSN:
- 1436-8730
- Subject:
- rice; soil organic carbon; enzymes; nutrients; conventional farming; sustainable agriculture; biogeochemical cycles; soil aggregates; mineral fertilizers; bulk density; soil microorganisms; agrochemicals; organic production; nutrient management; indicator species; soil quality; water holding capacity; enzyme activity; pesticides; prices; farmers; nutrient availability; growing season; aggregate stability; soil resources; India
- Abstract:
- ... Conventional agricultural practices that use excessive chemical fertilizers and pesticides come at a great price with respect to soil health, a key component to achieve agricultural sustainability. Organic farming could serve as an alternative agricultural system and solve the problems associated with the usage of agro‐chemicals by sustainable use of soil resources. A study was carried out to eval ...
- DOI:
- 10.1002/jpln.201700128
- https://doi.org/10.1002/jpln.201700128
- Author:
- Paul Julian; Randy Chambers; Timothy Russell
- Source:
- Estuaries and coasts 2017 v.40 no.3 pp. 822-831
- ISSN:
- 1559-2723
- Subject:
- biogeochemical cycles; bulk density; correlation; environmental factors; iron; national parks; organic matter; oxidation; pyrite; rivers; sulfur; water flow; water management; wetland soils; wetlands; Florida
- Abstract:
- ... We explored environmental factors influencing soil pyrite formation within different wetland regions of Everglades National Park. Within the Shark River Slough (SRS) region, soils had higher organic matter (62.65 ± 1.88 %) and lower bulk density (0.19 ± 0.01 g cm⁻³) than soils within Taylor Slough (TS; 14.35 ± 0.82 % and 0.45 ± 0.01 g cm⁻³, respectively), Panhandle (Ph; 15.82 ± 1.37 % and 0.34 ± 0 ...
- DOI:
- 10.1007/s12237-016-0180-3
- https://doi.org/10.1007/s12237-016-0180-3
- Author:
- Barbara J. Cade-Menun; Luke D. Bainard; Kerry LaForge; Michael Schellenberg; Bill Houston; Chantal Hamel
- Source:
- Canadian journal of soil science 2017 v.97 no.4 pp. 650-666
- ISSN:
- 1918-1841
- Subject:
- agricultural machinery and equipment; agricultural management; biogeochemical cycles; bulk density; carbon; clay; cropland; dust; fertilizers; grasslands; land use; nutrient use efficiency; pastures; phosphorus; physicochemical properties; roads; roadsides; runoff; soil; soil biology; Saskatchewan
- Abstract:
- ... Understanding nutrient cycling under different land uses can improve agricultural management practices. In southwestern Saskatchewan, long-term land use as annual cropland, native grassland pasture, tame (planted) crested wheatgrass grasslands, or roadsides altered soil physical and chemical properties based on the intensity and frequency of disturbance, with cropland > roadsides > tame grassland ...
- DOI:
- 10.1139/cjss-2016-0153
- https://doi.org/10.1139/cjss-2016-0153
- Author:
- Yahya Kooch; Negar Moghimian; Mohammad Bayranvand; Giorgio Alberti
- Source:
- Environmental monitoring and assessment 2016 v.188 no.6 pp. 346
- ISSN:
- 0167-6369
- Subject:
- Alnus subcordata; Taxodium distichum; biogeochemical cycles; bulk density; carbon; carbon dioxide; earthworms; greenhouse gas emissions; greenhouse gases; land use change; methane; microbial biomass; models; nitrogen; nitrous oxide; pH; seasonal variation; soil properties; texture; water content; Iran
- Abstract:
- ... Conversions of land use/cover are associated with changes in soil properties and biogeochemical cycling, with implications for carbon (C), nitrogen (N), and trace gas fluxes. In an attempt to provide a comprehensive evaluation of the significance of different land uses (Alnus subcordata plantation, Taxodium distichum plantation, agriculture, and deforested areas) on soil features and on the dynami ...
- DOI:
- 10.1007/s10661-016-5342-z
- https://doi.org/10.1007/s10661-016-5342-z
- Author:
- F.C. Fraser; L.C. Todman; R. Corstanje; L.K. Deeks; J.A. Harris; M. Pawlett; A.P. Whitmore; K. Ritz
- Source:
- Soil biology & biochemistry 2016 v.103 pp. 493-501
- ISSN:
- 0038-0717
- Subject:
- barley; biogeochemical cycles; bulk density; carbon; climate; mechanistic models; microbial biomass; microbial communities; organic matter; phenotype; physicochemical properties; prediction; respiratory rate; soil chemical properties; water holding capacity; England; Wales
- Abstract:
- ... Factors governing the turnover of organic matter (OM) added to soils, including substrate quality, climate, environment and biology, are well known, but their relative importance has been difficult to ascertain due to the interconnected nature of the soil system. This has made their inclusion in mechanistic models of OM turnover or nutrient cycling difficult despite the potential power of these mo ...
- DOI:
- 10.1016/j.soilbio.2016.09.015
- PubMed:
- 27917005
- PubMed Central:
- PMC5113515
- https://doi.org/10.1016/j.soilbio.2016.09.015
- Author:
- Jacob F. Berkowitz; Lindsey Green; Christine M. VanZomeren; John R. White
- Source:
- Ecological engineering 2016 v.97 pp. 381-388
- ISSN:
- 0925-8574
- Subject:
- basins; biogeochemical cycles; bulk density; carbon; dredged materials; dredging; economic costs; engineering; habitats; microbial biomass; nitrates; nitrogen; rivers; shorelines; soil formation; soil organic matter; soil properties; waterways; wetlands; Louisiana
- Abstract:
- ... Many waterways around the globe, including those in southern Louisiana, require periodic dredging to maintain navigability in channels, rivers, and at ports. Traditionally, dredged materials are deposited in confined disposal facilities, relegated to deep open water disposal, or used as fill material to build wetlands. Over the past 15+ years, dredge material from the Atchafalaya River was strateg ...
- DOI:
- 10.1016/j.ecoleng.2016.10.022
- https://doi.org/10.1016/j.ecoleng.2016.10.022
- Author:
- Ekaterina Shorohova; Ekaterina Kapitsa; Igor Kazartsev; Ivan Romashkin; Aleksei Polevoi; Helena Kushnevskaya
- Source:
- Forest ecology and management 2016 v.377 pp. 36-45
- ISSN:
- 0378-1127
- Subject:
- Betula pendula; Betula pubescens; Picea abies; Pinus sylvestris; Populus tremula; bark; biodiversity; biogeochemical cycles; boreal forests; bulk density; carbon; chronosequences; coarse woody debris; habitats; insects; mineralization; old-growth forests; peeling; phloem; stems; tree mortality; trees; vascular plants; vegetation cover; wood logs
- Abstract:
- ... Decomposition of coarse woody debris (CWD) bark is characterized by complex and poorly understood dynamics with unclear implications for carbon and nutrient cycling and biodiversity. We examined changes in cover and physical parameters through decomposition of bark attached to logs of the main tree species in an old-growth middle boreal forest. In a 66yrs long chronosequence after tree death and f ...
- DOI:
- 10.1016/j.foreco.2016.06.036
- https://doi.org/10.1016/j.foreco.2016.06.036
24. The soil and plant biogeochemistry sampling design for The National Ecological Observatory Network
- Author:
- Eve‐Lyn S. Hinckley; Gordon B. Bonan; Gabriel J. Bowen; Benjamin P. Colman; Paul A. Duffy; Christine L. Goodale; Benjamin Z. Houlton; Erika Marín‐Spiotta; Kiona Ogle; Scott V. Ollinger; Eldor A. Paul; Peter M. Vitousek; Kathleen C. Weathers; David G. Williams; D. Schimel
- Source:
- Ecosphere 2016 v.7 no.3 pp. -
- ISSN:
- 2150-8925
- Subject:
- National Science Foundation; air; anthropogenic activities; atmospheric deposition; biogeochemical cycles; bulk density; carbon; carbon dioxide; community structure; ecosystems; eutrophication; forests; humans; hydrochemistry; nitrogen; nutrients; pH; phosphorus; plant communities; plant tissues; soil texture; sulfur; surface water; United States
- Abstract:
- ... Human impacts on biogeochemical cycles are evident around the world, from changes to forest structure and function due to atmospheric deposition, to eutrophication of surface waters from agricultural effluent, and increasing concentrations of carbon dioxide (CO₂) in the atmosphere. The National Ecological Observatory Network (NEON) will contribute to understanding human effects on biogeochemical c ...
- DOI:
- 10.1002/ecs2.1234
- https://doi.org/10.1002/ecs2.1234
- Author:
- B. W. Murphy
- Source:
- Soil research 2015 v.53 no.6 pp. 605-635
- ISSN:
- 1838-675X
- Subject:
- aggregate stability; biogeochemical cycles; buffering capacity; bulk density; cation exchange capacity; economic productivity; erodibility; ligands; materials; mineralization; nitrate nitrogen; nutrients; rain; recycling; salinity; seeds; soil color; soil organic matter; soil pH; soil productivity; soil profiles; soil quality; soil strength; water holding capacity; Australia
- Abstract:
- ... A review has been undertaken into how soil organic matter (SOM) affects a range of soil properties that are important for the productive capacity of soils. The potential effect of varying the amount of SOM in soil on a range of individual soil properties was investigated using a literature search of published information largely from Australia, but also including relevant information from overseas ...
- DOI:
- 10.1071/SR14246
- https://doi.org/10.1071/SR14246
- Author:
- Sophia V. Hansson; James M. Kaste; Keyao Chen; Richard Bindler
- Source:
- Biogeochemistry 2014 v.119 no.1-3 pp. 329-339
- ISSN:
- 0168-2563
- Subject:
- Sphagnum; biogeochemical cycles; bromine; bulk density; copper; fens; lawns and turf; peat; peatlands; water table; Sweden
- Abstract:
- ... Several factors can affect the integrity of natural archives such as peat records, e.g., decomposition and nutrient cycling, and it has also been hypothesized that some rapid downward transport of atmospherically derived elements may occur. We test this hypothesis by analyzing the short-lived, natural tracer beryllium-7 (t½ = 53.4 days) in five cores from two peatlands. In triplicate hummock cores ...
- DOI:
- 10.1007/s10533-014-9969-y
- https://doi.org/10.1007/s10533-014-9969-y
- Author:
- Anup Das; R. Lal; D.P. Patel; R.G. Idapuganti; Jayanta Layek; S.V. Ngachan; P.K. Ghosh; Jurisandhya Bordoloi; Manoj Kumar
- Source:
- Soil & tillage research 2014 v.143 pp. 50-58
- ISSN:
- 0167-1987
- Subject:
- minimum tillage; rice; soil organic carbon; no-tillage; trampling damage; Oryza sativa; grazing; Paleudalfs; soil degradation; burning; phosphorus; biogeochemical cycles; manual weed control; production technology; bulk density; soil microorganisms; grain yield; puddling; hills; conventional tillage; soil quality; production costs; potassium; rice straw; weeds; nitrogen; farmers; fertilizers; microbial biomass; recycling; India
- Abstract:
- ... Intensive tillage-based production systems along with residue removal, grazing and/or burning of crop residues/biomass and poor nutrient replenishment through inadequate fertilizer and manure use are the major causes of soil degradation and unsustainable agriculture in hills of North Eastern India. Thus, a 4-year study (2003–07) was conducted during rainy (wet) seasons at Indian Council of Agricul ...
- DOI:
- 10.1016/j.still.2014.05.012
- https://doi.org/10.1016/j.still.2014.05.012
- Author:
- Robin Hale; Paul Reich; Tom Daniel; Philip S. Lake; Timothy R. Cavagnaro
- Source:
- Geoderma 2014 v.228-229 pp. 173-181
- ISSN:
- 0016-7061
- Subject:
- ammonium nitrate; biogeochemical cycles; bulk density; carbon; ecosystem services; edaphic factors; land use; monitoring; nitrogen; nitrogen content; nutrients; pastures; phosphorus; riparian areas; riparian soils; soil ecosystems; soil heterogeneity; streams; temporal variation; terrestrial ecosystems; vegetation; waterways
- Abstract:
- ... Considerable effort has been directed at restoring riparian zones to ensure they continue to provide ecosystem services and one of the most common aims of these activities is to reduce nutrients (in either water or soil) entering waterways. Vegetation plays a major role in nutrient interception, but nutrients in terrestrial ecosystems are strongly influenced by edaphic factors. Therefore understan ...
- DOI:
- 10.1016/j.geoderma.2013.09.019
- https://doi.org/10.1016/j.geoderma.2013.09.019
- Author:
- Qizheng Mao; Ganlin Huang; Alexander Buyantuev; Jianguo Wu; Shanghua Luo; Keming Ma
- Source:
- Ecological processes 2014 v.3 no.1 pp. 23
- ISSN:
- 2192-1709
- Subject:
- analysis of variance; biogeochemical cycles; bulk density; chromium; copper; ecological function; ecosystem management; ecosystem services; emissions; green infrastructure; heavy metals; humans; land use; lead; manganese; nickel; nitrogen; nitrogen content; nutrient content; phosphorus; plant growth; pollution; potassium; residential areas; roadsides; soil heterogeneity; soil nutrients; soil organic carbon; soil pH; soil water content; spatial variation; suburban areas; traffic; urban soils; urbanization; wastes; China
- Abstract:
- ... INTRODUCTION: Urban soils are large pools of carbon, nitrogen, and other elements, supporting plant growth, sustaining biogeochemical cycles, and serving as the foundation for maintaining ecosystem function and services of urban green spaces (UGS). Quantifying urban soil properties is essential for assessing urban ecosystem services and detecting pollution. Characterizing spatial heterogeneity of ...
- DOI:
- 10.1186/s13717-014-0023-8
- https://doi.org/10.1186/s13717-014-0023-8
- Author:
- H. Ford; J. Rousk; A. Garbutt; L. Jones; D. L. Jones
- Source:
- Biology and fertility of soils 2013 v.49 no.1 pp. 89-98
- ISSN:
- 0178-2762
- Subject:
- fatty acids; carbon; microbial growth; field experimentation; grasslands; Gram-positive bacteria; biogeochemical cycles; functional diversity; bulk density; global change; soil microorganisms; coasts; ecosystems; belowground biomass; phospholipids; Gram-negative bacteria; land use change; mineralization; plant growth; community structure; microbial communities; herbivores; soil water; salt marshes; nitrogen; microbial biomass; dune sand; grazing intensity; habitats; fungi
- Abstract:
- ... The effect of grazing by large herbivores on the microbial community and the ecosystem functions they provide are relatively unknown in grassland systems. In this study, the impact of grazing upon the size, composition and activity of the soil microbial community was measured in field experiments in two coastal ecosystems: one salt marsh and one sand dune grassland. Bacterial, fungal and total mic ...
- DOI:
- 10.1007/s00374-012-0721-2
- https://doi.org/10.1007/s00374-012-0721-2
- Author:
- Muhammad Farrakh Nawaz; Guilhem Bourrié; Fabienne Trolard
- Source:
- Agronomy for sustainable development 2013 v.33 no.2 pp. 291-309
- ISSN:
- 1774-0746
- Subject:
- agricultural soils; biodiversity; biogeochemical cycles; bulk density; carbon; compacted soils; crops; deformation; enzyme activity; equations; flora; food security; germination; greenhouse gas emissions; microbial biomass; models; mortality; nitrogen; porosity; prediction; roots; shoots; soil compaction; soil degradation; soil fauna; soil mechanics; soil organic matter; soil structure; soil texture; soil water; soil water content; traffic; wet environmental conditions
- Abstract:
- ... Compaction of agricultural soils is a concern for many agricultural soil scientists and farmers since soil compaction, due to heavy field traffic, has resulted in yield reduction of most agronomic crops throughout the world. Soil compaction is a physical form of soil degradation that alters soil structure, limits water and air infiltration, and reduces root penetration in the soil. Consequences of ...
- DOI:
- 10.1007/s13593-011-0071-8
- https://doi.org/10.1007/s13593-011-0071-8
- Author:
- Jared M. Theriot; Jeremy L. Conkle; S. Reza Pezeshki; Ronald D. DeLaune; John R. White
- Source:
- Ecological engineering 2013 v.60 pp. 192-198
- ISSN:
- 0925-8574
- Subject:
- biogeochemical cycles; buffers; bulk density; carbon; denitrification; ecosystem services; landscapes; microbial biomass; nitrogen; phosphorus; riparian areas; rivers; soil properties; surface water; water quality; wetlands; wildlife habitats; Mississippi River
- Abstract:
- ... Riparian wetlands are essential components of the landscape, providing critical functions including buffers for floodwaters, wildlife habitat and improvement of surface water quality. Many riparian wetlands have been hydrologically disconnected from the Mississippi River by a vast system of levees, altering the ecosystem services provided by these riparian zones. Efforts are underway to restore th ...
- DOI:
- 10.1016/j.ecoleng.2013.07.021
- https://doi.org/10.1016/j.ecoleng.2013.07.021
- Author:
- Matthias Peichl; Natalie Anne Leava; Gerard Kiely
- Source:
- Plant and soil 2012 v.350 no.1-2 pp. 281-296
- ISSN:
- 0032-079X
- Subject:
- Alnus glutinosa; Fraxinus excelsior; aboveground biomass; afforestation; belowground biomass; biogeochemical cycles; bulk density; carbon; ecosystems; forest plantations; forest soils; forests; grasslands; inventories; land use change; mineralization; nitrogen; nitrogen content; roots; trees; Ireland
- Abstract:
- ... BACKGROUND AND AIMS: This study investigated initial land-use change effects on ecosystem biomass, carbon (C) and nitrogen (N) allocation and storage by comparing a recently afforested grassland with an adjacent intensively managed grassland in southern Ireland. METHODS: Soil C, N and fine root (<2 mm) stocks were determined from soil cores. Above ground biomass, C and N stocks were estimated from ...
- DOI:
- 10.1007/s11104-011-0905-9
- https://doi.org/10.1007/s11104-011-0905-9
- Author:
- Cristina Macci; Serena Doni; Eleonora Peruzzi; Grazia Masciandaro; Carmelo Mennone; Brunello Ceccanti
- Source:
- Journal of environmental management 2012 v.95S no. pp. S215
- ISSN:
- 0301-4797
- Subject:
- almonds; biogeochemical cycles; bulk density; carbon; enzyme activity; farms; metabolism; microbial activity; mineral fertilizers; nitrogen; nutrient availability; organic soils; physicochemical properties; planting; proteinases; rain; roots; semiarid zones; shrinkage; soil biological properties; soil erosion; soil microorganisms; soil nutrients; soil quality; soil structure; soil treatment; trees; urease; Italy
- Abstract:
- ... The semi-arid Mediterranean region, characterized by long dry periods followed by heavy bursts of rainfall, is particularly prone to soil erosion. The main goal of this study is to evaluate the soil quality under different practices of bio-physical amelioration which involve the soil-plant system (almond trees) and microorganism-manure. This study, carried out in the South of Italy (Basilicata Reg ...
- DOI:
- 10.1016/j.jenvman.2010.10.050
- PubMed:
- 21074934
- https://doi.org/10.1016/j.jenvman.2010.10.050
- Author:
- Ángeles G. Mayor; Susana Bautista
- Source:
- Ecological indicators 2012 v.20 no. pp. 332-336
- ISSN:
- 1470-160X
- Subject:
- biogeochemical cycles; bulk density; ecosystems; infiltration rate; landscapes; monitoring; quantitative analysis; runoff; sediment yield; sediments; soil organic carbon; soil water retention; watersheds; Spain
- Abstract:
- ... Ecosystem monitoring and assessment are often based on functional indicators, which provide integrated and yet simple and affordable measures of key ecosystem functions. The landscape function analysis (LFA) assesses ecosystem functioning through three indices that represent basic soil functions: surface stability, infiltration, and nutrient cycling. Given the high scale-dependency of hydrological ...
- DOI:
- 10.1016/j.ecolind.2012.03.003
- https://doi.org/10.1016/j.ecolind.2012.03.003
- Author:
- Ekaterina Shorohova; Olga Ignatyeva; Ekaterina Kapitsa; Heikki Kauhanen; Anton Kuznetsov; Ilkka Vanha-Majamaa
- Source:
- Forest ecology and management 2012 v.263 no. pp. 74-84
- ISSN:
- 0378-1127
- Subject:
- Betula; Picea abies; Pinus sylvestris; aerial parts; bark; biodiversity; biogeochemical cycles; boreal forests; bulk density; carbon; chronosequences; prescribed burning; stumps; trees; wood; Finland
- Abstract:
- ... The high importance of stumps for biodiversity, carbon and nutrient cycling requires narrowing the uncertainties in their decomposition rate assessment. We estimated the stump decomposition rates of the main European boreal tree species along a chronosequence of 0-, 5-, 10-, 20-, 30-, 40- and 50-year-old clear-felled sites with and without prescribed burning in southern and northern Finland. Estim ...
- DOI:
- 10.1016/j.foreco.2011.09.006
- https://doi.org/10.1016/j.foreco.2011.09.006
- Author:
- H.L. Throop; S.R. Archer; H.C. Monger; S. Waltman
- Source:
- Journal of arid environments 2012 v.77 no. pp. 66-71
- ISSN:
- 0140-1963
- Subject:
- arid lands; biogeochemical cycles; bulk density; carbon sinks; climate models; soil; soil organic carbon; uncertainty
- Abstract:
- ... Resolving uncertainty in the carbon cycle is paramount to refining climate predictions. Soil organic carbon (SOC) is a major component of terrestrial C pools, and accuracy of SOC estimates are only as good as the measurements and assumptions used to obtain them. Dryland soils account for a substantial portion of global SOC, but the pool dynamics are highly uncertain. One crucial component of accur ...
- DOI:
- 10.1016/j.jaridenv.2011.08.020
- https://doi.org/10.1016/j.jaridenv.2011.08.020
- Author:
- Raviv, M.
- Source:
- Acta horticulturae 2011 v. no.891 pp. 19-32
- ISSN:
- 0567-7572
- Subject:
- animal manures; bark; biochemical oxygen demand; biogeochemical cycles; bulk density; compost maturity; composting; grape pomace; green waste; growing media; horticulturists; ingredients; mosses and liverworts; nitrogen; oxygen; pH; pathogens; peat; peatlands; phytotoxicity; plant growth; recycling; rice hulls; salinity; sawdust; seeds; shelf life; shrinkage; soil-borne diseases; spent mushroom compost; weeds
- Abstract:
- ... Horticulturists have long used various organic materials as components of potting substrates. Since the 1950s, peat moss replaced most of these materials due to its superior physical properties. More recently the trend has changed again as a result of the need to recycle organic wastes in an environmentally-sensitive manner, the rising cost of peat and the understanding of the crucial role that pe ...
- Author:
- Rachel L. Jolley; B. Graeme Lockaby; Robin M. Governo
- Source:
- Soil Science Society of America journal 2010 v.74 no.1 pp. 326-336
- ISSN:
- 0361-5995
- Subject:
- riparian forests; biogeochemical cycles; mineralization; nitrogen; soil microorganisms; carbon; ephemeral streams; soil texture; soil pH; cation exchange capacity; soil density; bulk density; soil quality; soil temperature; soil water content; sand fraction; sediment transport; watersheds; Georgia
- Abstract:
- ... The importance of riparian forests in maintaining water quality through the retention of sediments and nutrients is well understood; however, little is known about how sediment deposition from upland erosion affects the integrity of these systems. The objectives of this study were to compare decomposition rates, net N mineralization rates, microbial biomass, and other soil properties along a gradi ...
- DOI:
- 10.2136/sssaj2009.0041
- https://doi.org/10.2136/sssaj2009.0041
- Author:
- Regina, K.; Alakukku, L.
- Source:
- Soil & tillage research 2010 v.109 no.2 pp. 144-152
- ISSN:
- 0167-1987
- Subject:
- greenhouse gases; agricultural soils; no-tillage; soil depth; carbon; soil respiration; field experimentation; gas emissions; biogeochemical cycles; carbon dioxide; bulk density; soil density; small cereal grains; temporal variation; soil water content; conventional tillage; nitrous oxide; grain crops; nitrogen; methane; environmental impact; Finland
- Abstract:
- ... Consideration of the environmental effects of the no-tillage practice should be made on the basis of its effects on both carbon and nitrogen cycles. There is a lack of data on the effects of the no-till management in the cool and humid climate and typical soil types of Northern Europe. We measured the fluxes of nitrous oxide (N₂O), carbon dioxide (CO₂) and methane (CH₄) on conventionally ploughed ...
- DOI:
- 10.1016/j.still.2010.05.009
- https://doi.org/10.1016/j.still.2010.05.009
- Author:
- Wong, V.N.L.; Greene, R.S.B.; Dalal, R.C.; Murphy, B.W.
- Source:
- Soil use and management 2010 v.26 no.1 pp. 2-11
- ISSN:
- 0266-0032
- Subject:
- soil organic carbon; carbon sinks; saline sodic soils; soil aggregation; nutrients; biogeochemical cycles; plant health; bulk density; hydrology; mineralization; exchangeable sodium; soil salinity; sodic soils; microbial activity; flocculation; carbonates; salinity; landscapes; microbial biomass; vegetation; sodicity
- Abstract:
- ... Soil salinity (high levels of water‐soluble salt) and sodicity (high levels of exchangeable sodium), called collectively salt‐affected soils, affect approximately 932 million ha of land globally. Saline and sodic landscapes are subjected to modified hydrologic processes which can impact upon soil chemistry, carbon and nutrient cycling, and organic matter decomposition. The soil organic carbon (SOC ...
- DOI:
- 10.1111/j.1475-2743.2009.00251.x
- https://doi.org/10.1111/j.1475-2743.2009.00251.x
- Author:
- Noellemeyer, Elke; Frank, Federico; Alvarez, Cristian; Morazzo, German; Quiroga, Alberto
- Source:
- Soil & tillage research 2008 v.99 no.2 pp. 179-190
- ISSN:
- 0167-1987
- Subject:
- land use change; agricultural soils; soil organic carbon; pastures; spatial distribution; bulk density; infiltration (hydrology); soil structure; semiarid soils; soil respiration; soil aggregates; biogeochemical cycles; grassland soils; Argentina
- Abstract:
- ... Land-use change affects vast areas of the semiarid region of central Argentina, where agriculture becomes predominant over mixed farming systems, and large areas of permanent pastures (PAS) are being converted to agricultural land. This land-use change causes loss of soil structure, but very little is known about the effect of changes in aggregate size distribution on soil physical, chemical and b ...
- DOI:
- 10.1016/j.still.2008.02.003
- https://doi.org/10.1016/j.still.2008.02.003
- Author:
- Walle, I. vande; Samson, R.; Looman, B.; Verheyen, K.; Lemeur, R.
- Source:
- Tree physiology 2007 v.27 no.6 pp. 837-848
- ISSN:
- 0829-318X
- Subject:
- carbon dioxide; mathematical models; forest trees; soil temperature; soil water content; gas exchange; equations; soil chemistry; bulk density; Salix viminalis; seasonal variation; biogeochemical cycles; forest ecology; soil-plant interactions; Belgium
- Abstract:
- ... Soil CO(2) efflux (SR) is the second largest carbon flux on earth. We investigated the driving factors of the seasonal change and short-distance spatial variation in SR in a short-rotation plantation of willow (Salix viminalis Orm). Total annual SR ranged from 723 to 1149 g C m(-2) year(-1). Both an exponential and a logistic model were fitted to the data, with soil temperature at a depth of 5 cm ...
- DOI:
- 10.1093/treephys/27.6.837
- PubMed:
- 17331902
- https://doi.org/10.1093/treephys/27.6.837
- Author:
- Murty, D.; Kirschbaum, M.U.F.; McMurtrie, R.E.; McGilvray, H.
- Source:
- Global change biology 2002 v.8 no.2 pp. 105-123
- ISSN:
- 1354-1013
- Subject:
- carbon dioxide; soil organic matter; nitrogen; land use; pastures; bulk density; fertilizers; crop residues; deforestation; carbon nitrogen ratio; data analysis; biogeochemical cycles; forests
- DOI:
- 10.1046/j.1354-1013.2001.00459.x
- https://doi.org/10.1046/j.1354-1013.2001.00459.x
- Author:
- Ikpe, F.N.; Powell, J.M.
- Source:
- Nutrient cycling in agroecosystems 2002 v.62 no.1 pp. 37-45
- ISSN:
- 1385-1314
- Subject:
- urine; animal husbandry; no-tillage; application rate; acid soils; farming systems; soil amendments; Pennisetum glaucum; livestock; feces; bulk density; soil fertility; soil pH; stover; biogeochemical cycles; nitrogen fertilizers; Niger
- Abstract:
- ... Pearl millet [Pennisetum glaucum R. (Br.) L.] is grown in West Africa on sandy, acid soils deficient in plant nutrients. In the mixed farming systems of western Niger, livestock graze millet stover by day and deposit dung and urine directly on cropland during overnight kraaling. Kraaling of livestock is perhaps the most important pathway to recycle nutrients and sustain soil fertility. Three tilla ...
- Author:
- Tremblay, S.; Ouimet, R.; Houle, D.
- Source:
- Canadian journal of forest research = 2002 v.32 no.5 pp. 903-914
- ISSN:
- 0045-5067
- Subject:
- forest soils; soil organic matter; carbon; biogeochemical cycles; forest management; latitude; mineral soils; bulk density; soil pH; color; forest inventory; thickness; Quebec
- Abstract:
- ... Soil organic carbon (C) is an important component of forest carbon pools and should be taken into account in sustainable forest management. However, there is a need to derive indicators for this attribute, as organic C content (Mg(.)ha-1) in forest soils is generally not available in Quebec survey data. Thus, we developed models to predict organic C accumulation in the forest floor and in mineral ...
- DOI:
- 10.1139/x02-023
- https://doi.org/10.1139/x02-023
- Author:
- J. R. White; K. R. Reddy
- Source:
- Soil Science Society of America journal 2000 v.64 no.4 pp. 1525-1534
- ISSN:
- 0361-5995
- Subject:
- biogeochemical cycles; bulk density; detritus; ecosystems; macrophytes; microbial activity; microbial biomass; mineralization; organic nitrogen; phosphorus; pollution load; soil depth; soil properties; total phosphorus; water quality
- Abstract:
- ... There have been recent concerns about the anthropogenic phosphorus (P) loading to the naturally oligotrophic Everglades ecosystem. We investigated the effect of P loading on the biogeochemical cycling of nitrogen (N). We investigated the distribution of the potentially mineralizable N (PMN) rate as an indicator of the influence of P loading on selected microbial activities in soil and detritus lay ...
- DOI:
- 10.2136/sssaj2000.6441525x
- https://doi.org/10.2136/sssaj2000.6441525x
48. Microbial activity in response to water-filled pore space of variably eroded southern Piedmont soils
- Author:
- Franzluebbers, A.J.
- Source:
- Applied soil ecology 1999 v.11 no.1 pp. 91-101
- ISSN:
- 0929-1393
- Subject:
- soil microorganisms; biomass; biological activity in soil; clay soils; agricultural soils; biogeochemical cycles; nitrogen; carbon; mineralization; soil texture; soil pore system; soil water content; water erosion; bulk density; nitrates; nitrogen content; ammonium compounds; Georgia
- Abstract:
- ... Potential C and N mineralization and soil microbial biomass C (SMBC) are soil biological properties important in understanding nutrient and organic matter dynamics. Knowledge of soil water content at a matric potential near field capacity is needed to determine these biological properties. The objective of this study was to examine whether adjustment of soil water content to a common level of wate ...
- Handle:
- 10113/9955
- DOI:
- 10.1016/S0929-1393(98)00128-0
- https://doi.org/10.1016/S0929-1393(98)00128-0
- Author:
- Hart, S.C.; Sollins, P.
- Source:
- Canadian journal of forest research = 1998 v.28 no.8 pp. 1261-1265
- ISSN:
- 0045-5067
- Subject:
- trenching; carbon; seasonal variation; roots; biogeochemical cycles; coniferous forests; nutrient uptake; bulk density; soil fertility; soil pH; ecosystems; mineralization; soil bacteria; soil organic matter; nitrification; soil water; biomass; understory; soil fungi; nitrogen; Oregon
- Abstract:
- ... We measured surface soil (0-15 cm) C and N pools and processes inside and outside an area that had been trenched 13 years earlier in an old-growth conifer forest (>450 years) to assess the long-term impacts of reduced root inputs on C and N turnover. Trenching, combined with frequent clipping of understory plants, was originally conducted to prevent nutrient uptake by plants, as part of a study of ...
- DOI:
- 10.1139/x98-101
- https://doi.org/10.1139/x98-101
- Author:
- Coomes, D.A.
- Source:
- Canadian journal of forest research = 1997 v.27 no.6 pp. 831-839
- ISSN:
- 0045-5067
- Subject:
- height; plant characteristics; rain; ecosystems; drainage; nitrogen; biogeochemical cycles; calcium; phosphorus; magnesium; potassium; soil fertility; rain forests; soil profiles; leaves; wood; biomass; seasonal variation; bulk density; plant litter; flooded conditions; Venezuela
- Abstract:
- ... Amazonian caatinga, a low-stature forest type confined to seasonally waterlogged white-sand soils, occurs at La Esmeralda (Orinoco basin) under a lower rainfall than at San Carlos (Rio Negro basin), where many previous studies have been made. The nutrient status of forest types at La Esmeralda are compared and related to those of forests at San Carlos. At La Esmeralda, stature declines from well-d ...
- DOI:
- 10.1139/x97-008
- https://doi.org/10.1139/x97-008