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1. Formation of soil phosphorus fractions along a climate and vegetation gradient in the Coastal Cordillera of Chile

Author:
Brucker, Emanuel; Spohn, Marie
Source:
Catena 2019 v.180 pp. 203-211
ISSN:
0341-8162
Subject:
soil pH,   etc   ; apatite; atmospheric precipitation; climate; ecosystems; phosphorus; vegetation gradient; Chile;     Show all 8 Subjects
Abstract:
... Despite the importance of phosphorus (P) for ecosystems, the effect of climate and vegetation on the formation of P fractions is not well understood. Therefore, we explored the formation of soil P fractions along a climosequence covering an arid, semi-arid, mediterranean and humid site in the Coastal Cordillera of Chile. We determined Hedley P fractions (water extractable P, labile P, secondary mi ...
DOI:
10.1016/j.catena.2019.04.022

2. Development and validation of a model for whole course aging of nickel added to a wide range of soils using a complementary error function

Author:
Li, Shi-Wei; Li, Helian; Han, Xuemei; Ma, Yibing
Source:
Geoderma 2019 v.348 pp. 54-59
ISSN:
0016-7061
Subject:
soil pH,   etc   ; bioavailability; ecotoxicology; environmental quality; model validation; models; nickel; regression analysis; toxicity; water solubility;     Show all 10 Subjects
Abstract:
... After water-soluble nickel (Ni) is added to soils, its bioavailability/toxicity, isotopic exchangeability, and extractability decline over time. Two separate semi-mechanistic models (Sqrt-model and Ln-model), have been developed to predict short- and long-term aging of Ni added to soils. To continuously predict Ni aging in one model, a semi-mechanistic model (Erfc-model) was developed in the prese ...
DOI:
10.1016/j.geoderma.2019.04.018

3. Soil organic carbon changes following wetland cultivation: A global meta-analysis

Author:
Xu, Shangqi; Liu, Xia; Li, Xiujun; Tian, Chunjie
Source:
Geoderma 2019 v.347 pp. 49-58
ISSN:
0016-7061
Subject:
soil pH,   etc   ; bulk density; hydrology; meta-analysis; soil organic carbon; total nitrogen; wetlands;     Show all 7 Subjects
Abstract:
... Wetland cultivation has a profound effect on soil organic carbon (SOC) and global soil carbon cycles. However, the global patterns of the changes in SOC following wetland cultivation are still not well understood, especially with respect to the conditions under which SOC can increase in cultivated wetlands. We synthesized the results from 64 study sites and carried out a meta-analysis to quantify ...
DOI:
10.1016/j.geoderma.2019.03.036

4. Prediction of soil pH patterns in nature areas on a national scale

Author:
Wamelink, G. W. Wieger; Walvoort, Dennis J. J.; Sanders, Marlies E.; Meeuwsen, Henk A. M.; Wegman, Ruut M. A.; Pouwels, Rogier; Knotters, Martin
Source:
Applied vegetation science 2019 v.22 no.2 pp. 189-199
ISSN:
1402-2001
Subject:
soil pH,   etc   ; acid deposition; acidification; agricultural land; models; prediction; soil types; vegetation; water table; Netherlands;     Show all 10 Subjects
Abstract:
... QUESTION: To assess the acidification process, nationwide information about soil pH on a site level is called for. Measurements of soil pH may be used, however there are not sufficient measurements available to map soil pH nationwide on site level. Instead we developed a soil pH map based on vegetation data. LOCATION: Natural terrestrial areas in The Netherlands. METHODS: 271,693 vegetation plots ...
DOI:
10.1111/avsc.12423

5. Long-term surface application of lime ameliorates subsurface soil acidity in the mixed farming zone of south-eastern Australia

Author:
Li, Guangdi D.; Conyers, Mark K.; Helyar, Keith R.; Lisle, Chris J.; Poile, Graeme J.; Cullis, Brian R.
Source:
Geoderma 2019 v.338 pp. 236-246
ISSN:
0016-7061
Subject:
soil pH,   etc   ; acid soils; acidification; calcium chloride; field experimentation; liming; subsurface soil layers; Australia;     Show all 8 Subjects
Abstract:
... An 18-year field experiment was conducted on a highly acidic soil in the mixed farming zone of south-eastern Australia. The experiment was a fully phased design with three major treatment contrasts: perennial systems versus annual systems; unlimed versus limed treatments; and permanent pasture versus pasture-crop rotations. The hypotheses tested in this study were that a) perennial systems would b ...
DOI:
10.1016/j.geoderma.2018.12.003

6. Plant species–area relationships are determined by evenness, cover and aggregation in drylands worldwide

Author:
DeMalach, Niv; Saiz, Hugo; Zaady, Eli; Maestre, Fernando T.
Source:
Global ecology and biogeography 2019 v.28 no.3 pp. 290-299
ISSN:
1466-822X
Subject:
soil pH,   etc   ; arid lands; dry environmental conditions; ecosystems; models; perennials; prediction; species richness; vegetation;     Show all 9 Subjects
Abstract:
... AIM: Species–area relationships (also known as “species–area curves” and “species accumulation curves”) represent the relationship between species richness and the area sampled in a given community. These relationships can be used to describe diversity patterns while accounting for the well‐known scale‐dependence of species richness. Despite their value, their functional form and parameters, as we ...
DOI:
10.1111/geb.12849

7. Spectrophotometric measurement of the pH of soil extracts using a multiple indicator dye mixture

Author:
Bargrizan, S.; Smernik, R. J.; Mosley, L. M.
Source:
European journal of soil science 2019 v.70 no.2 pp. 411-420
ISSN:
1351-0754
Subject:
soil pH,   etc   ; absorbance; absorptivity; alkalinity; dyes; equations; glass electrodes; spectrophotometers; standard deviation; titration; wavelengths;     Show all 11 Subjects
Abstract:
... This paper describes the development of a spectrophotometric method with an expanded pH range of 3–9 that uses a mixed indicator solution (equimolar bromophenol blue, bromocresol purple, m‐cresol purple and thymol blue). The method uses measurements of absorbance of the dye mixture at two wavelengths (434 and 585 nm), chosen to represent the average acid and base peak maxima of the individual dyes ...
DOI:
10.1111/ejss.12745

8. Changes in atrazine speciation and the degradation pathway in red soil during the vermiremediation process

Author:
Lin, Zhong; Zhen, Zhen; Liang, Yanqiu; Li, Jin; Yang, Jiewen; Zhong, Laiyuan; Zhao, Lirong; Li, Yongtao; Luo, Chunling; Ren, Lei; Zhang, Dayi
Source:
Journal of hazardous materials 2019 v.364 pp. 710-719
ISSN:
0304-3894
Subject:
soil pH,   etc   ; Amynthas; Eisenia fetida; atrazine; bioremediation; deethylatrazine; earthworms; neutralization; soil organic matter;     Show all 9 Subjects
Abstract:
... Atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) is a triazine herbicide intensively used in agricultural production and is often detected in different environmental matrices at concentrations above the permitted limit. This study investigated the influence of two earthworm species (epigeic Eisenia foetida and endogeic Amynthas robustus) on atrazine speciation and the degradation p ...
DOI:
10.1016/j.jhazmat.2018.04.037

9. The response of metabolically active Clostridium community to initial pH shift is closely correlated with microbial Fe(III) reduction in flooded paddy soils

Author:
Li, Lina; Qu, Zhi; Wang, Baoli; Jia, Rong; Qu, Dong
Source:
Journal of soils and sediments 2019 v.19 no.2 pp. 522-532
ISSN:
1439-0108
Subject:
soil pH,   etc   ; Clostridium; biogeochemistry; hydrogen; hydrogen production; iron; microorganisms; paddy soils;     Show all 8 Subjects
Abstract:
... PURPOSE: Soil pH could be greatly affected by agriculture practices in paddy soils, in which microbial Fe(III) reduction is a prevalent and important biogeochemical process. There is increasing evidence that microbial fermentative processes can play an important role in Fe(III) reduction. In this study, the response of metabolically active Clostridium community to initial pH adjustment was investi ...
DOI:
10.1007/s11368-018-2053-9

10. The transfer of fallout plutonium from paddy soil to rice: A field study in Japan

Author:
Ni, Youyi; Wang, Zhongtang; Zheng, Jian; Tagami, Keiko; Guo, Qiuju; Uchida, Shigeo; Tsukada, Hirofumi
Source:
Journal of environmental radioactivity 2019 v.196 pp. 22-28
ISSN:
0265-931X
Subject:
soil pH,   etc   ; Asians; cerium; diet; geometry; heading; paddy soils; plutonium; radioactivity; rice; thorium; Japan;     Show all 12 Subjects
Abstract:
... Reported transfer factor (TF) values of Pu from paddy soil to rice are rather scarce, despite the radiotoxicity of Pu and the irreplaceable role of rice in Asian peoples’ diets. Here, we conducted a field study to investigate the transfer of global fallout Pu from paddy soil to rice grain (hulled rice) in Japan. The 240Pu/239Pu atomic ratios in two rice grain samples out of 16 samples were determi ...
DOI:
10.1016/j.jenvrad.2018.10.010

11. Efficacité de différentes formes d’azote dans la culture du bleuet nain sauvage

Author:
Lafond, Jean
Source:
Canadian journal of soil science 2018 v.98 no.2 pp. 381-384
ISSN:
1918-1841
Subject:
soil pH,   etc   ; ammonium sulfate; blueberries; nitrogen;     Show all 4 Subjects
Abstract:
... The objective was to evaluate the wild blueberry response to different nitrogen (N) forms and to determine their impacts on soil pH and nitrogen. Only ammonium sulfate decreased and maintained soil pH at adequate levels and ensured N availability to the culture. Crop productivity was not affected by N forms. ...
DOI:
10.1139/cjss-2017-0117

12. The effect of different temperature and pH levels on uptake of CO2 in Solonchaks

Author:
Zhao, Xiaoning; Conrads, Hannah; Zhao, Chengyi; Ingwersen, Joachim; Stahr, Karl; Wei, Xiaorong
Source:
Geoderma 2019 v.348 pp. 60-67
ISSN:
0016-7061
Subject:
soil pH,   etc   ; Solonchaks; alkaline soils; carbon; carbon sequestration; desert soils; dissolved carbon dioxide; equations; soil solution; temperature;     Show all 10 Subjects
Abstract:
... Previous studies have observed a negative CO2 efflux from semi-desert and desert soil, but the carbon uptake in alkaline soils has not been measured quantitatively in laboratory. The present study aims at closing this gap considering the effect of temperature, soil pH and pCO2. CO2 uptake was studied with the help of the Barometric Process Separation (BaPS) technique. CO2 uptake was studied at 3 d ...
DOI:
10.1016/j.geoderma.2019.04.012

13. Chronic phosphorus enrichment and elevated pH suppresses Quercus spp. leaf litter decomposition in a temperate forest

Author:
DeForest, Jared L.
Source:
Soil biology & biochemistry 2019 v.135 pp. 206-212
ISSN:
0038-0717
Subject:
soil pH,   etc   ; Quercus; carbon; carbon cycle; ecosystems; mining; nitrogen; nutrients; phosphorus; phosphorus fertilizers; plant litter; temperate forests; wetlands; United States;     Show all 14 Subjects
Abstract:
... The potential of excessive nitrogen (N) suppressing litter decay in is widely recognized. The role of phosphorus (P) in plant litter decay is less understood and is generally assumed to have a weak influence in decomposition outside tropical or wetland ecosystems. Based on the “microbial mining” hypothesis that suggests the availability of limiting nutrients is the driving mechanism of decay, P co ...
DOI:
10.1016/j.soilbio.2019.05.005

14. A nickel phytomining field trial using Odontarrhena chalcidica and Noccaea goesingensis on an Austrian serpentine soil

Author:
Rosenkranz, Theresa; Hipfinger, Christina; Ridard, Charline; Puschenreiter, Markus
Source:
Journal of environmental management 2019 v.242 pp. 522-528
ISSN:
0301-4797
Subject:
soil pH,   etc   ; Alyssum murale; Lotus corniculatus; Noccaea; biomass; field experimentation; hyperaccumulators; intercropping; legumes; nickel; planting; rhizosphere; serpentine; serpentine soils; sulfur;     Show all 15 Subjects
Abstract:
... Phytomining of nickel (Ni) is based on the cropping of Ni hyperaccumulators on Ni-rich serpentine soils. The efficiency of this approach is dependent on shoot nickel concentration and harvestable biomass. In a field experiment conducted on an Austrian serpentine site, the phytomining efficiency of the two plant species Odontarrhena chalcidica (syn. Alyssum murale) and Noccaea goesingensis was eval ...
DOI:
10.1016/j.jenvman.2019.04.073

15. Weathering and soil formation in rhyolitic tephra along a moisture gradient on Alcedo Volcano, Galápagos

Author:
Candra, I Nyoman; Gerzabek, Martin H.; Ottner, Franz; Tintner, Johannes; Wriessnig, Karin; Zehetner, Franz
Source:
Geoderma 2019 v.343 pp. 215-225
ISSN:
0016-7061
Subject:
soil pH,   etc   ; Andosols; Regosols; allophane; altitude; fauna; ferrihydrite; flora; halloysite; phosphates; soil formation; soil organic carbon; tephra; Galapagos Islands;     Show all 14 Subjects
Abstract:
... The Galápagos archipelago has extensively been studied because of its geological and climatic setting and especially for its peculiar flora and fauna. However, there is still little information about its soils. The objective of this study was to investigate weathering and soil formation on Alcedo Volcano, which is the only volcano of Galápagos that has erupted abundant rhyolitic materials. Soils w ...
DOI:
10.1016/j.geoderma.2019.01.051

16. Meat and bone meal as a novel biostimulation agent in hydrocarbon contaminated soils

Author:
Liu, Xinxin; Selonen, Ville; Steffen, Kari; Surakka, Mea; Rantalainen, Anna-Lea; Romantschuk, Martin; Sinkkonen, Aki
Source:
Chemosphere 2019 v.225 pp. 574-578
ISSN:
0045-6535
Subject:
soil pH,   etc   ; biodegradation; bioremediation; diesel fuel; fertilizers; meat and bone meal; oils; polluted soils; soil pollution; urea; Finland;     Show all 11 Subjects
Abstract:
... Soil contamination with diesel oil is frequent and methods to improve remediation of diesel oil contaminated soils are urgently needed. The aim of the current study was to assess the potential of meat and bone meal (MBM) as a biostimulation agent to enhance diesel oil degradation in contaminated soils collected from southern Finland. MBM (2% w/w) increased oil degradation in soils when compared to ...
DOI:
10.1016/j.chemosphere.2019.03.053

17. Modelling spatial biodiversity in the world’s largest mangrove ecosystem—The Bangladesh Sundarbans: A baseline for conservation

Author:
Sarker, Swapan Kumar; Reeve, Richard; Paul, Nirmal K.; Matthiopoulos, Jason
Source:
Diversity & distributions 2019 v.25 no.5 pp. 729-742
ISSN:
1366-9516
Subject:
soil pH,   etc   ; community structure; conservation areas; disease outbreaks; habitats; harvesting; humans; mangrove forests; models; prediction; salinity; species abundance; trees; Bangladesh;     Show all 14 Subjects
Abstract:
... AIM: Mangrove forests are among the most threatened and rapidly vanishing, but poorly understood ecosystems. We aim to uncover the variables driving mangrove biodiversity and produce baseline biodiversity maps for the Sundarbans world heritage site—the Earth's largest contiguous mangrove ecosystem. LOCATION: The Bangladesh Sundarbans, South Asia. METHODS: We collected species abundance, environmen ...
DOI:
10.1111/ddi.12887

18. Experimental study of the effects of soil pH and ionic species on the electro-osmotic consolidation of kaolin

Author:
Hu, Liming; Zhang, Lin; Wu, Hui
Source:
Journal of hazardous materials 2019 v.368 pp. 885-893
ISSN:
0304-3894
Subject:
soil pH,   etc   ; anodes; cathodes; copper; dewatering; drainage; electric field; electric potential; electroosmosis; ions; kaolin; polluted soils; remediation; sodium; water content;     Show all 15 Subjects
Abstract:
... The application of an electric field on soil mass induces both electro-osmotic flow and electro-migration, which has been used for the dewatering of soft soils and remediation of contaminated soils. The physical and chemical properties of soft soils are influenced by the soil pH as well as ionic species and their concentrations, which subsequently influence the dewatering and remediation efficienc ...
DOI:
10.1016/j.jhazmat.2018.09.015

19. An important role of decomposing wood for soil environment with a reference to communities of springtails (Collembola)

Author:
Čuchta, Peter; Kaňa, Jiří; Pouska, Václav
Source:
Environmental monitoring and assessment 2019 v.191 no.4 pp. 222
ISSN:
0167-6369
Subject:
soil pH,   etc   ; Collembola; Picea; ammonium; bark beetles; carbon; decayed wood; edaphic factors; forests; species richness; wind; Czech Republic;     Show all 12 Subjects
Abstract:
... Present study focused on how the presence of decaying wood affects soil environment including its biota. The study was carried out in the montane spruce forest, disturbed by wind and bark beetles in Trojmezná Mt. of the Bohemian Forest in the Czech Republic. According to the results, presence of decomposing wood influenced soil environment in terms of its chemical properties by increasing soil pH ...
DOI:
10.1007/s10661-019-7363-x

20. Response of ammonia volatilization to biochar addition: A meta-analysis

Author:
Sha, Zhipeng; Li, Qianqian; Lv, Tiantian; Misselbrook, Tom; Liu, Xuejun
Source:
The Science of the total environment 2019 v.655 pp. 1387-1396
ISSN:
0048-9697
Subject:
soil pH,   etc   ; acid soils; ammonia; application rate; biochar; meta-analysis; organic fertilizers; regression analysis; soil amendments; urea; volatilization;     Show all 11 Subjects
Abstract:
... There has been increasing interest in and use of biochar as a soil amendment. However, the effects of biochar addition on ammonia volatilization (AV) appeared contradictory from the many reported studies and the main influencing factors remain unclear. Here, we conducted a comprehensive meta-analysis of 41 published articles with 144 observations to reveal the effects of biochar addition on AV and ...
DOI:
10.1016/j.scitotenv.2018.11.316