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61. Comparing the use of training data derived from legacy soil pits and soil survey polygons for mapping soil classes

Author:
Heung, Brandon; Hodúl, Matúš; Schmidt, Margaret G.
Source:
Geoderma 2017 v.290 pp. 51-68
ISSN:
0016-7061
Subject:
topography,   etc   ; algorithms; data collection; environmental factors; information systems; logit analysis; models; prediction; principal component analysis; soil; soil classification; soil surveys; uncertainty; British Columbia;     Show all 14 Subjects
Abstract:
... Machine-learners used for digital soil mapping are generally trained using either data derived from field-observed soil pits or from soil survey polygons - although no direct comparison of the accuracy resulting from the two methods has yet to be undertaken. This study examined such a comparison over the Okanagan Valley and Kamloops region of British Columbia where good quality soil pit and soil s ...
DOI:
10.1016/j.geoderma.2016.12.001

62. Larix decidua δ18O tree-ring cellulose mainly reflects the isotopic signature of winter snow in a high-altitude glacial valley of the European Alps

Author:
Leonelli, Giovanni; Battipaglia, Giovanna; Cherubini, Paolo; Saurer, Matthias; Siegwolf, Rolf T.W.; Maugeri, Maurizio; Stenni, Barbara; Fusco, Stella; Maggi, Valter; Pelfini, Manuela
Source:
The Science of the total environment 2017 v.579 pp. 230-237
ISSN:
0048-9697
Subject:
topography,   etc   ; Larix decidua; carbon; cellulose; growing season; growth rings; oxygen; regression analysis; snow; snowmelt; soil; stable isotopes; streams; summer; temperature; trees; variance; winter; Alps region; Italy;     Show all 20 Subjects
Abstract:
... We analyzed the chronologies of cellulose stable isotopes (δ13C and δ18O) and tree-ring widths from European larch (Larix decidua) in a high-altitude site (2190ma.s.l.) at the bottom of a glacial valley in the Italian Alps, and investigated their dependence on monthly meteorological variables and δ18O precipitation values. The δ18O of tree-ring cellulose appears to be strongly driven by the δ18O o ...
DOI:
10.1016/j.scitotenv.2016.11.129

63. A framework for habitat monitoring and climate change modelling: construction and validation of the Environmental Stratification of Estonia

Author:
Villoslada, Miguel; Bunce, Robert G. H.; Sepp, Kalev; Jongman, Rob H. G.; Metzger, Marc J.; Kull, Tiiu; Raet, Janar; Kuusemets, Valdo; Kull, Ain; Leito, Aivar
Source:
Regional environmental change 2017 v.17 no.2 pp. 335-349
ISSN:
1436-3798
Subject:
topography,   etc   ; agroecosystems; biodiversity; climate change; climatic factors; data collection; environmental impact; habitats; land cover; landscapes; models; monitoring; principal component analysis; soil; Estonia;     Show all 15 Subjects
Abstract:
... Environmental stratifications provide the framework for efficient surveillance and monitoring of biodiversity and ecological resources, as well as modelling exercises. An obstacle for agricultural landscape monitoring in Estonia has been the lack of a framework for the objective selection of monitoring sites. This paper describes the construction and testing of the Environmental Stratification of ...
DOI:
10.1007/s10113-016-1002-7

64. Evaluation of Sediment Deposition in a Mediterranean Reservoir: Comparison of Long Term Bathymetric Measurements and SWAT Estimations

Author:
Licciardello, Feliciana; Toscano, Attilio; Cirelli, Giuseppe L.; Consoli, Simona; Barbagallo, Salvatore
Source:
Land degradation & development 2017 v.28 no.2 pp. 566-578
ISSN:
1085-3278
Subject:
topography,   etc   ; Mediterranean climate; Soil and Water Assessment Tool model; databases; magnesium; runoff; sediment deposition; sediment yield; sediments; soil; surveys; water flow; watersheds;     Show all 13 Subjects
Abstract:
... This study aims to demonstrate that the SWAT model can be used to predict discharge and sediment yield values in reservoir contributing catchments helping also to define the main factors that determine sedimentation rates in semi‐arid Mediterranean environments. This aim was achieved by comparing SWAT simulation results with water flows (over 29 years) and sediment deposition (over 47 years) volum ...
DOI:
10.1002/ldr.2557

65. Grazing by bison is a stronger driver of plant ecohydrology in tallgrass prairie than fire history

Author:
O’Keefe, Kimberly; Nippert, Jesse B.
Source:
Plant and soil 2017 v.411 no.1-2 pp. 423-436
ISSN:
0032-079X
Subject:
topography,   etc   ; Amorpha canescens; Andropogon gerardii; Bison bison; Rhus glabra; Vernonia; bison; ecosystems; grasslands; grazing; highlands; hydrology; soil; water uptake; xylem; Kansas;     Show all 16 Subjects
Abstract:
... BACKGROUND AND AIMS: Fire and grazing are important disturbances in grasslands, yet we know little about how they impact a variety of plant physiological processes such as plant ecohydrology. Here, we assessed the impact of fire history and grazing by Bison bison on the source of water uptake and niche overlap in common grassland species at the Konza Prairie Biological Station, a temperate mesic g ...
DOI:
10.1007/s11104-016-3048-1

66. Human impact on natural systems modeled through soil erosion in GeoWEPP: A comparison between pre-Hispanic periods and modern times in the Teotihuacan Valley (Central Mexico)

Author:
González-Arqueros, M. Lourdes; Mendoza, Manuel E.; Vázquez-Selem, Lorenzo
Source:
Catena 2017 v.149 pp. 505-513
ISSN:
0341-8162
Subject:
topography,   etc   ; Water Erosion Prediction Project; anthropogenic activities; climate; highlands; land use change; landscapes; runoff; sediment deposition; soil; soil erosion; watershed hydrology; watersheds; Mexico;     Show all 14 Subjects
Abstract:
... Anthropogenic changes during the past 2000years in the Teotihuacan Valley imply that intensity of soil degradation varies depending on the land management practices and the intensity of soil use. As a part of a broader effort to reconstruct erosion dynamics in the Teotihuacan Valley through geoarchaeological approaches, our study applies a process-based watershed hydrology and upland erosion model ...
DOI:
10.1016/j.catena.2016.07.028

67. Quantifying model uncertainty to improve watershed-level ecosystem service quantification: a global sensitivity analysis of the RUSLE

Author:
Estrada-Carmona, Natalia; Harper, Elizabeth B.; DeClerck, Fabrice; Fremier, Alexander K.
Source:
TheInternational journal of biodiversity science, ecosystem services & management 2017 v.13 no.1 pp. 40-50
ISSN:
2151-3740
Subject:
topography,   etc   ; Revised Universal Soil Loss Equation; conservation practices; data collection; ecosystem services; ecosystems; environmental factors; model uncertainty; soil; soil conservation; watersheds; United States;     Show all 12 Subjects
Abstract:
... Ecosystem service-support tools are commonly used to guide natural resource management. Often, empirically based models are preferred due to low data requirements, simplicity and clarity. Yet, uncertainty produced by local context or parameter estimation remains poorly quantified and documented. We assessed model uncertainty of the Revised Universal Soil Loss Equation – RUSLE developed mainly from ...
DOI:
10.1080/21513732.2016.1237383

68. Acquisition and automated rectification of high-resolution rgb and near-ir aerial photographs to estimate plant biomass and surface topography in arid agro-ecosystems

Author:
SELSAM, PETER; SCHAEPER, WOLFGANG; BRINKMANN, KATJA; BUERKERT, ANDREAS
Source:
Experimental agriculture 2017 v.53 no.1 pp. 144-157
ISSN:
1469-4441
Subject:
topography,   etc   ; aerial photography; agroecosystems; automation; cameras; computer software; cost effectiveness; flight; geometry; georeferencing; landscapes; models; monitoring; phytomass; soil; unmanned aerial vehicles; vegetation;     Show all 17 Subjects
Abstract:
... Increasing image resolution and shrinking camera size facilitates easy mounting of digital cameras on Unmanned Aerial Vehicles (UAVs) to collect large amounts of high-resolution aerial photos for soil surface and vegetation monitoring. Major challenges remain geo-referencing of these images, reliable stitching (mosaicking), elimination of geometric image distortions and compensation of limited ima ...
DOI:
10.1017/S0014479716000089

69. Surface Disturbance and Erosion by Pigs: A Medium Term Assessment for the Monsoonal Tropics

Author:
Hancock, G R; Lowry, JBC; Dever, C
Source:
Land degradation & development 2017 v.28 no.1 pp. 255-264
ISSN:
1085-3278
Subject:
topography,   etc   ; Europeans; Sus scrofa; data collection; digital elevation models; environmental impact; feral animals; gully erosion; introduced species; rain; sediment traps; soil; surface roughness; surveys; swine; tropics; watersheds; Australia;     Show all 18 Subjects
Abstract:
... Introduced pigs (Sus scrofa) are recognised as having significant environmental impacts. Here, we quantify the effect of feral pigs in a catchment (undisturbed by Europeans) in the monsoonal tropics of northern Australia. Field data collected over a 5‐year period showed that the areal extent of pig disturbance ranged from 0·3 to 3·3% of the survey area (average 1·2%, σ = 0·9%). Mass of exhumed mat ...
DOI:
10.1002/ldr.2636

70. Spatial variations of soil organic carbon stocks in a coastal hilly area of China

Author:
Wang, Shuai; Zhuang, Qianlai; Jia, Shuhai; Jin, Xinxin; Wang, Qiubing
Source:
Geoderma 2017
ISSN:
0016-7061
Subject:
topography,   etc   ; carbon markets; carbon sequestration; carbon sinks; forests; grasslands; kriging; land use change; remote sensing; soil; soil organic carbon; soil quality; soil sampling; China;     Show all 14 Subjects
Abstract:
... Quantification of soil organic carbon (SOC) stocks and their spatial variations at regional scales is a foundation to adequately assess plant productivity and soil carbon sequestration potentials so as to establish better practices for land use and land management. This study evaluated the spatial variation of SOC stocks from 1982 to 2012 in Wafangdian, Liaoning Province, China. To map SOC stock, ...
DOI:
10.1016/j.geoderma.2017.10.052

71. Availability and species diversity of forest products in a Neotropical rainforest landscape

Author:
Navarrete-Segueda, Armando; Martínez-Ramos, Miguel; Ibarra-Manríquez, Guillermo; Cortés-Flores, Jorge; Vázquez-Selem, Lorenzo; Siebe, Christina
Source:
Forest ecology and management 2017 v.406 pp. 242-250
ISSN:
0378-1127
Subject:
topography,   etc   ; Neotropics; aboveground biomass; aluminum; environmental factors; forest management; forest products; landscapes; linear models; nitrogen; ordination techniques; pH; phosphorus; regression analysis; soil; sustainable forestry; trees; tropical rain forests; Mexico;     Show all 19 Subjects
Abstract:
... Tropical rainforests harbor a high diversity of tree species, offering a potentially rich array of timber (TFP) and non-timber (NTFP) forest products. The supply of such products has been commonly evaluated at the local (plot) scale; however, little is known about how their availability and diversity change at the landscape scale, particularly in heterogeneous environments. This information is cri ...
DOI:
10.1016/j.foreco.2017.08.037

72. Fruit dispersal dynamics of the cold desert shrub Zygophyllum xanthoxylon

Author:
Zhao, Xiaoying; Baskin, Carol C.; Zhu, Changqing; Baskin, Jerry M.
Source:
Seed science research 2017 v.27 no.4 pp. 303-310
ISSN:
1475-2735
Subject:
topography,   etc   ; Ephedra; Zygophyllum; buried seeds; cold zones; community development; deserts; drought; fruits; habitat conservation; habitats; pioneer species; plant communities; seed dispersal; shrublands; shrubs; soil; summer; wind direction; wind speed; windbreaks; xerophytes; China;     Show all 23 Subjects
Abstract:
... The pattern of seed dispersal in time and space can affect plant fitness and the soil seed bank, and thus information is needed on this aspect of the seed biology of a species before it is selected for use in habitat restoration projects. Zygophyllum xanthoxylon is a super-xerophilous shrub that is a potential pioneer species for use in revegetating highly disturbed areas of the cold deserts of no ...
DOI:
10.1017/S0960258517000253

73. Transfer of ornithogenic influence through different trophic levels of the Arctic terrestrial ecosystem of Bjørnøya (Bear Island), Svalbard

Author:
Zmudczyńska-Skarbek, Katarzyna; Barcikowski, Mateusz; Drobniak, Szymon M.; Gwiazdowicz, Dariusz J.; Richard, Pierre; Skubała, Piotr; Stempniewicz, Lech
Source:
Soil biology & biochemistry 2017 v.115 pp. 475-489
ISSN:
0038-0717
Subject:
topography,   etc   ; Araneae; Collembola; Larus; Sarcoptiformes; community structure; diet; mites; nesting; nests; nitrogen; nitrogen content; population characteristics; predators; seabirds; soil; soil invertebrates; stable isotopes; terrestrial ecosystems; trophic levels; vegetation; water content; Arctic region; Norway;     Show all 24 Subjects
Abstract:
... Despite widespread recognition of the crucial role seabirds play in the fertilization of nutrient-poor polar terrestrial ecosystems, no studies have attempted a concurrent analysis of the entire or large proportion of an ornithogenically-supported food web. The aim of the current study was to assess the significance of allochthonous nutrient enrichment of key elements of the Bjørnøya (Svalbard) te ...
DOI:
10.1016/j.soilbio.2017.09.008

74. Waterlogging in Arid Agriculture Areas Due to Improper Groundwater Management—An Example from Kuwait

Author:
Al-Murad, Mohammed; Uddin, Saif; Rashid, Tariq; Al-Qallaf, Habib; Bushehri, Abdullah
Source:
Sustainability 2017 v.9 no.11
ISSN:
2071-1050
Subject:
topography,   etc   ; agricultural development; agricultural land; aquifers; arid zones; brackish water; dewatering; evaporation; farms; flooded conditions; groundwater; irrigation management; microirrigation; soil; sustainable agriculture; total dissolved solids; wastewater; water requirement; water table; wells; Kuwait;     Show all 21 Subjects
Abstract:
... Waterlogging is an acute problem in the agricultural areas of arid regions. This study highlights the main reasons for water table rise in the Wafra agriculture area of South Kuwait. A two-tier aquifer system exists in the area, which consists of the Kuwait Group aquifer underlain by a semi-confined Dammam aquifer. Improper sealing of wells tapping the semi-confined Dammam aquifer and over-irrigat ...
DOI:
10.3390/su9112131

75. Mapping and Analyzing Stream Network Changes in Watonwan River Watershed, Minnesota, USA

Author:
Yuan, Fei; Larson, Phillip; Mulvihill, Roman; Libby, Devon; Nelson, Jessica; Grupa, Tyler; Moore, Rick
Source:
ISPRS international journal of geo-information 2017 v.6 no.11
ISSN:
2220-9964
Subject:
topography,   etc   ; United States Environmental Protection Agency; aerial photography; digital elevation models; environmental hazards; eutrophication; hydrology; lakes; land use change; pollution control; rivers; sedimentation rate; soil; streams; subwatersheds; surveys; Minnesota; Mississippi River;     Show all 18 Subjects
Abstract:
... Much of the Watonwan River tributary system to the upper Mississippi River basin (UMR), and the fluvial systems to which it drains, are listed as impaired under the United States Environmental Protection Agency Clean Water Act303(d) and/or by the Minnesota Pollution Control Agency. In addition, eutrophic conditions and excessive sedimentation rates exist in Lake Pepin, a riverine lake to which the ...
DOI:
10.3390/ijgi6110369

76. Probabilistic landslide susceptibility mapping along Tipri to Ghuttu highway corridor, Garhwal Himalaya (India)

Author:
Pandey, Vijendra Kumar; Sharma, Milap Chand
Source:
Remote sensing applications 2017 v.8 pp. 1-11
ISSN:
2352-9385
Subject:
topography,   etc   ; Internet; Landsat; computer software; geographic information systems; inventories; issues and policy; land use; landslides; livelihood; monsoon season; normalized difference vegetation index; probability; probability analysis; remote sensing; soil; streams; Himalayan region; India;     Show all 19 Subjects
Abstract:
... Landslides are very crucial natural hazard that pose serious threats to lives and livelihood in the Garhwal Himalaya, particularly during the monsoon season. The aim of this study was analysis of distribution probability of landslides along the highway corridors and susceptibility mapping. Hence, a comprehensive landslide inventory has been prepared using Landsat 8 satellite images for 2009, IRS L ...
DOI:
10.1016/j.rsase.2017.07.007

77. Preparation of chitosan/polyvinyl alcohol blended films containing sulfosuccinic acid as the crosslinking agent using UV curing process

Author:
Yun, Yeon-Hum; Lee, Chang-Moon; Kim, Youn-Sop; Yoon, Soon-Do
Source:
Food research international 2017 v.100 pp. 377-386
ISSN:
0963-9969
Subject:
topography,   etc   ; absorption; atomic force microscopy; biodegradability; chitosan; coatings; cross-linking reagents; foods; glycerol; optical properties; plasticizers; polyvinyl alcohol; scanning electron microscopy; soil; solubility; sorbitol; tensile strength; thermal properties; water vapor; xylitol;     Show all 20 Subjects
Abstract:
... This paper reports on a method of preparing chitosan-based films to which sulfosuccinic acid (SSA) is added for crosslinking agent with/without UV curing treatment and applications of a coating materials for foods. The physical, thermal, and optical properties of the UV cured chitosan-based films are investigated including their tensile strength (TS), elongation at break (%E), degree of swelling ( ...
DOI:
10.1016/j.foodres.2017.07.030

78. Characterizing long-term soil and water erosion and their interactions with various conservation practices in the semi-arid Zulihe basin, Dingxi, Gansu, China

Author:
Zhang, Fu; Xing, Zisheng; Zhao, Chuanyan; Deng, Juli; Yang, Bing; Tian, Qing; Rees, Herb W.; Badreldin, Nasem
Source:
Ecological engineering 2017 v.106 pp. 458-470
ISSN:
0925-8574
Subject:
topography,   etc   ; afforestation; basins; climate change; conservation practices; conservation programs; data collection; grasses; land management; landscapes; pollution load; ponds; rain; regression analysis; runoff; sediment transport; sediment yield; soil; soil conservation; terraces; water conservation; water erosion; watersheds; wet season; China;     Show all 25 Subjects
Abstract:
... Located in a 200–400mm precipitation zone, the Zulihe basin (Zulihe River basin) in China is highly sensitive to climate change and land management. The relatively concentrated rainfall during the wet season (June-September) often leads to severe soil and water erosion. With a dataset collected at the outlet of the basin during 1955-2013, we first examined the trends in precipitation, runoff gener ...
DOI:
10.1016/j.ecoleng.2017.04.056

79. Climate, Topography, and Canopy Chemistry Exert Hierarchical Control Over Soil N Cycling in a Neotropical Lowland Forest

Author:
Osborne, Brooke B.; Nasto, Megan K.; Asner, Gregory P.; Balzotti, Christopher S.; Cleveland, Cory C.; Sullivan, Benjamin W.; Taylor, Philip G.; Townsend, Alan R.; Porder, Stephen
Source:
Ecosystems 2017 v.20 no.6 pp. 1089-1103
ISSN:
1432-9840
Subject:
topography,   etc   ; Neotropics; canopy; catenas; global change; humid zones; landscapes; lowland forests; mineralization; nitrification; nitrogen; nitrogen cycle; nutrient availability; rain; soil; space and time; species diversity; stable isotopes; terraces; tropical forests; Costa Rica;     Show all 21 Subjects
Abstract:
... Nutrient availability varies substantially across lowland tropical forests and constrains their responses to global change. However, interactions among regional, landscape, and local controls of nutrient availability are poorly understood. In that context, we explored the effects of rainfall, topography, and canopy chemistry on nitrogen (N) cycling across the Osa Peninsula (Costa Rica). We sampled ...
DOI:
10.1007/s10021-016-0095-7

80. Evaluation of groundwater potential using geospatial techniques

Author:
Hussein, Abdul-Aziz; Govindu, Vanum; Nigusse, Amare Gebre Medhin
Source:
Appl Water Sci 2017 v.7 no.5 pp. 2447-2461
ISSN:
2190-5487
Subject:
topography,   etc   ; Landsat; computer software; developing countries; digital elevation models; drainage; environmental factors; feces; geographic information systems; groundwater; land use and land cover maps; monitoring; multi-criteria decision making; rain; remote sensing; rivers; soil; surveys; watersheds; wells; Ethiopia;     Show all 21 Subjects
Abstract:
... The issue of unsustainable groundwater utilization is becoming increasingly an evident problem and the key concern for many developing countries. One of the problems is the absence of updated spatial information on the quantity and distribution of groundwater resource. Like the other developing countries, groundwater evaluation in Ethiopia has been usually conducted using field survey which is not ...
DOI:
10.1007/s13201-016-0433-0