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1. Impacts of residue quality and N input on aggregate turnover using the combined 13C natural abundance and rare earth oxides as tracers

Author:
Rahman, M.T.; Liu, S.; Guo, Z.C.; Zhang, Z.B.; Peng, X.H.
Source:
Soil & tillage research 2019 v.189 pp. 110-122
ISSN:
0167-1987
Subject:
aggregate stability,   etc   ; Miscanthus; carbon; corn straw; microaggregates; nitrogen; oxides; soil respiration; stable isotopes; tracer techniques;     Show all 10 Subjects
Abstract:
... The effects of residue quality and nitrogen (N) input on soil aggregate turnover are not clarified. In this study, aggregation pathways and C cycling were tracked by using rare earth oxides (REOs) and 13C natural abundance as tracers, respectively. Two residues (maize straw, C/N = 32; miscanthus straw, C/N = 220) coupled with or without N application (200 kg N ha−1) were incorporated into the REO ...
DOI:
10.1016/j.still.2019.01.005

2. Spatiotemporal Balanced Sampling Design for Longitudinal Area Surveys

Author:
Wang, Zhonglei; Zhu, Zhengyuan
Source:
Journal of agricultural, biological, and environmental statistics 2019 v.24 no.2 pp. 245-263
ISSN:
1085-7117
Subject:
aggregate stability,   etc   ; inventories; longitudinal studies; models; monitoring; rangelands; soil aggregates; surveys; variance; Texas;     Show all 10 Subjects
Abstract:
... A spatially balanced sample can produce good estimates of finite population quantities when the study variable is dependent over a spatial region with respect to a super-population model. In many longitudinal surveys for monitoring natural resources, annual samples are taken in space to estimate both annual status and annual change. In this paper, we propose a spatiotemporal balanced sampling desi ...
DOI:
10.1007/s13253-019-00350-w

3. Burn Effects on Soil Aggregate Stability and Water Repellency of Two Soil Types from East and North Tunisia

Author:
Ibrahimi, Khaled; Mowrer, Jake; Amami, Roua; Belaid, Abdelhamid
Source:
Communications in soil science and plant analysis 2019 v.50 no.7 pp. 827-837
ISSN:
1532-2416
Subject:
aggregate stability,   etc   ; Fluvisols; burning; clay soils; sandy loam soils; soil aggregates; soil sampling; temperature; Tunisia;     Show all 9 Subjects
Abstract:
... To date, evidence of the potential effects of burning practices on soil properties in Tunisia is limited. In order to address this issue, we carried out laboratory investigations of the effects of burning on soil aggregate stability (AS) and water repellency (WR) of a clayey and a sandy loam Fluvisol soils. The treatments included low (100°C, LT), medium (300°C, MT) and high (600°C, HT), heating t ...
DOI:
10.1080/00103624.2019.1589487

4. Andosol clay re‐aggregation observed at the microscale during physical organic matter fractionation

Author:
Inagaki, Thiago M.; Mueller, Carsten W.; Lehmann, Johannes; Kögel-Knabner, Ingrid
Source:
Zeitschrift für Pflanzenernährung und Bodenkunde 2019 v.182 no.2 pp. 145-148
ISSN:
1436-8730
Subject:
aggregate stability,   etc   ; Andosols; clay; clay fraction; fractionation; freeze drying; liquids; microscopy; sodium chloride; soil organic matter;     Show all 10 Subjects
Abstract:
... The high aggregate stability of Andosols and the direct effects of sample drying led to several inconsistencies during physical soil organic matter fractionation. We have determined that NaCl addition displayed little influence on clay dispersion. At the microscale, we observed the re‐aggregation of the clay fraction caused by freeze‐drying. This issue was avoided by analyzing aliquots of soil sus ...
DOI:
10.1002/jpln.201800421

5. A field evaluation of the impact of temporary cover crops on soil properties and vegetation communities in southern Spain vineyards

Author:
Guzmán, G.; Cabezas, J.M.; Sánchez-Cuesta, R.; Lora, Á.; Bauer, T.; Strauss, P.; Winter, S.; Zaller, J.G.; Gómez, J.A.
Source:
Agriculture, ecosystems & environment 2019 v.272 pp. 135-145
ISSN:
0167-8809
Subject:
aggregate stability,   etc   ; barley; biomass production; calcareous soils; cover crops; plant communities; soil management; vineyards; Spain;     Show all 9 Subjects
Abstract:
... Transition from bare soil to temporary cover crop-based soil management has been promoted for at least two decades in vineyards in southern Spain. However, there is limited field evaluation of its impact at commercial vineyard level. Our study evaluates the impact of these two soil managements in sixteen commercial vineyards in Southern Spain. Selected soil physical, chemical and biological proper ...
DOI:
10.1016/j.agee.2018.11.010

6. Effect of soil particle interaction forces in a clay‐rich soil on aggregate breakdown and particle aggregation

Author:
Hu, F.; Li, S.; Xu, C.; Gao, X.; Miao, S.; Ding, W.; Liu, X.; Li, H.
Source:
European journal of soil science 2019 v.70 no.2 pp. 268-277
ISSN:
1351-0754
Subject:
aggregate stability,   etc   ; coagulation; electrolytes; light scattering; magnesium; potential energy; sodium nitrate; soil slaking; van der Waals forces;     Show all 9 Subjects
Abstract:
... Particle aggregation and aggregate breakdown are important processes that frequently occur in soil under natural conditions. However, how these two opposing processes are affected by the forces that govern soil particle interaction remains unclear. Thus, in this research, we aimed to: (i) investigate the relation between particle aggregation and aggregate breakdown and (ii) probe the mechanism und ...
DOI:
10.1111/ejss.12740

7. The effects of NO3− and Cl− on negatively charged clay aggregation

Author:
Gao, Xiaodan; Li, Song; Liu, Xinmin; Hu, Feinan; Tian, Rui; Li, Hang
Source:
Soil & tillage research 2019 v.186 pp. 242-248
ISSN:
0167-1987
Subject:
aggregate stability,   etc   ; activation energy; adsorption; anions; chlorides; clay; coagulation; light scattering; montmorillonite; nitrates; soil aggregates; tillage; zeta potential;     Show all 13 Subjects
Abstract:
... Farmer’s experiences told us that, NO3− could strongly decrease soil aggregate stability and compact the soil, thus increase tillage difficulty and decrease tillage quality, but Cl− could not. It implies that, even though soil particles are often with net negative charges, NO3− and Cl− could cause different effects on soil particle interactions. The purpose of present study is to examine whether a ...
DOI:
10.1016/j.still.2018.10.025

8. Trait-based approach for agroecology: contribution of service crop root traits to explain soil aggregate stability in vineyards

Author:
Garcia, Léo; Damour, Gaëlle; Gary, Christian; Follain, Stéphane; Le Bissonnais, Yves; Metay, Aurélie
Source:
Plant and soil 2019 v.435 no.1-2 pp. 1-14
ISSN:
0032-079X
Subject:
aggregate stability,   etc   ; agroecosystems; crops; ideotypes; mass density; plant communities; soil aggregates; soil organic carbon; tillage; topsoil; vineyards;     Show all 11 Subjects
Abstract:
... AIMS: The aim of this study was to explore the impact of soil management strategies and the contribution of root traits of plant communities and soil organic carbon (SOC) in explaining soil aggregate stability in vineyards. METHODS: We measured topsoil aggregate stability, soil properties and root traits of 38 plant communities in an experimental vineyard, previously subjected to different soil ma ...
DOI:
10.1007/s11104-018-3874-4

9. Effect of tea plantation age on the distribution of glomalin-related soil protein in soil water-stable aggregates in southwestern China

Author:
Zhu, Renhuan; Zheng, Zicheng; Li, Tingxuan; He, Shuqin; Zhang, Xizhou; Wang, Yongdong; Liu, Tao
Source:
Environmental science and pollution research international 2019 v.26 no.2 pp. 1973-1982
ISSN:
0944-1344
Subject:
aggregate stability,   etc   ; abandoned land; carbon sequestration; plantations; planting; soil aggregates; soil fungi; soil organic carbon; soil quality; tea; China;     Show all 11 Subjects
Abstract:
... Glomalin-related soil protein (GRSP) is crucial for the accumulation of soil organic carbon (SOC), and contributes to the formation of soil aggregates. However, it remains unclear whether GRSP is involved in altering the stability of soil aggregates in the long-term tea planting process. The relationship between the distribution of GRSP and soil aggregates in tea plantations is poorly studied. We ...
DOI:
10.1007/s11356-018-3782-4

10. Reduction of hydraulic conductivity and loss of organic carbon in non-dispersive soils of different clay mineralogy is related to magnesium induced disaggregation

Author:
Zhu, Yingcan; Bennett, John McLean; Marchuk, Alla
Source:
Geoderma 2019 v.349 pp. 1-10
ISSN:
0016-7061
Subject:
aggregate stability,   etc   ; calcium; clay; desorption; dissolved organic carbon; illite; illitic soils; irrigation water; kaolinite; leachates; magnesium; montmorillonite; saturated hydraulic conductivity; soil permeability; turbidity; zeta potential;     Show all 16 Subjects
Abstract:
... Irrigation water containing appreciable amount of magnesium (Mg) is increasingly used in farming. However, studies on the effect of Mg on soil permeability and structural stability are limited and the results are contradicting. In this study, four soils of different dominant clay mineralogy, specifically kaolinite, illite and montmorillonite, were used to investigate the effect of Mg on saturated ...
DOI:
10.1016/j.geoderma.2019.04.019

11. Applicability of biochar for limiting interrill erosion and organic carbon export of sloping cropland in a semi-arid area of China

Author:
Peng, Xiaoyu; Tong, Xiaogang; Hao, Liting; Wu, Faqi
Source:
Agriculture, ecosystems & environment 2019 v.280 pp. 68-76
ISSN:
0167-8809
Subject:
aggregate stability,   etc   ; biochar; cropland; interrill erosion; rain intensity; rainfall simulation; runoff; sediments; semiarid zones; silt loam soils; soil aggregates; soil amendments; soil texture; total organic carbon; wheat; China;     Show all 16 Subjects
Abstract:
... As a recalcitrant carbon source, the residence time of biochar is estimated to be hundreds to thousands of years. Since biochar is now being applied as a soil amendment in many areas of the world, the effects of long-term stationary biochar and its applicability for limiting soil erosion and nutrient export must be considered. To this end, this study investigated the effects of biochar on interril ...
DOI:
10.1016/j.agee.2019.04.021

12. Calcium chloride washing of calcareous sediment from a freshwater canal: effect on the removal of potentially toxic elements and water aggregate stability

Author:
Buscaroli, Enrico; Sciubba, Luigi; Falsone, Gloria; Cavani, Luciano; Brecchia, Matteo; Argese, Emanuele; Marzadori, Claudio; Pourrut, Bertrand; Braschi, Ilaria
Source:
Journal of soils and sediments 2019 v.19 no.7 pp. 3098-3107
ISSN:
1439-0108
Subject:
aggregate stability,   etc   ; bioavailability; calcium; calcium chloride; carbonates; clay; clay fraction; copper; dredging; flocculation; freshwater; ions; pH; pollution; sediments; toxic substances; washing; zinc;     Show all 18 Subjects
Abstract:
... PURPOSE: Canal dredging and shaping produce considerable amounts of sediments whose reuse on- and off-site depends on their pollution level. This study explores the potential of a calcium chloride washing to remove potentially toxic elements (PTEs) from a freshly dredged calcareous sediment and to affect the aggregate stability of the washed sediment. MATERIALS AND METHODS: The ability of 0.5-M Ca ...
DOI:
10.1007/s11368-019-02298-3

13. The effect of vegetation change in C and N contents in litter and soil organic fractions of a Northern Iran temperate forest

Author:
Kooch, Yahya; Sanji, Razie; Tabari, Masoud
Source:
Catena 2019 v.178 pp. 32-39
ISSN:
0341-8162
Subject:
aggregate stability,   etc   ; Pinus; carbon nitrogen ratio; carbon sequestration; forest land; global warming; nitrogen content; plantations; soil aggregation; soil organic matter; soil sampling; temperate forests; temperate zones; Iran;     Show all 14 Subjects
Abstract:
... The properties of litter and soil, which are probably influenced by vegetation traits, have an effect on the fractions of C and N and ultimately global warming. In this study, litter and soil samples were collected from representative forestlands, including a mixed natural forest dominated by hornbeam‑ironwood and tree plantations of ash, maple, cypress and pine which are situated in a temperate a ...
DOI:
10.1016/j.catena.2019.03.009

14. Effects of organic carbon and iron oxides on soil aggregate stability under different tillage systems in a rice–rape cropping system

Author:
Xue, Bin; Huang, Li; Huang, Yanan; Yin, Zhiyao; Li, Xiaokun; Lu, Jianwei
Source:
Catena 2019 v.177 pp. 1-12
ISSN:
0341-8162
Subject:
aggregate stability,   etc   ; binding agents; conventional tillage; cropping systems; iron oxides; no-tillage; paddy soils; rice; soil aggregates; soil organic carbon; straw;     Show all 11 Subjects
Abstract:
... Studies of soil organic carbon (SOC) and iron oxides are crucial for understanding soil aggregate formation and stability in paddy–upland rotation systems. Many of these soils contain large amounts of SOC and iron oxides, which may be lost due to changes in the hydrothermal conditions. This study primarily investigated the dynamics of aggregates and soil binders (SOC and iron oxides) after rice an ...
DOI:
10.1016/j.catena.2019.01.035

15. Linking Improvement of Soil Structure to Soil Carbon Storage Following Invasion by a C4 Plant Spartina alterniflora

Author:
He, Yanghui; Zhou, Xuhui; Cheng, Weisong; Zhou, Lingyan; Zhang, Guodong; Zhou, Guiyao; Liu, Ruiqiang; Shao, Junjiong; Zhu, Kai; Cheng, Weixin
Source:
Ecosystems 2019 v.22 no.4 pp. 859-872
ISSN:
1432-9840
Subject:
aggregate stability,   etc   ; C3 plants; C4 plants; Spartina alterniflora; carbon sequestration; chronosequences; ecosystems; soil aggregates; soil aggregation; soil organic carbon; soil structure; stable isotopes; total nitrogen; wetlands;     Show all 14 Subjects
Abstract:
... Coastal wetlands are increasingly recognized as important ecosystems for long-term carbon (C) storage. However, how soil aggregation mediates C accumulation and sequestration in these ecosystems remains unclear. Using the ¹³C isotope tracer from the invasion of a C₄ plant, Spartina alterniflora, into the native ecosystem originally covered by C₃ plants across Eastern Chinese coastal wetlands, we i ...
DOI:
10.1007/s10021-018-0308-3

16. Reduced tillage and compost effects on soil aggregate stability of a silt-loam Luvisol using different aggregate stability tests

Author:
Obalum, S.E.; Uteau-Puschmann, D.; Peth, S.
Source:
Soil & tillage research 2019 v.189 pp. 217-228
ISSN:
0167-1987
Subject:
aggregate stability,   etc   ; Luvisols; composts; conventional tillage; erodibility; laboratory techniques; rainfall simulation; reduced tillage; runoff; sediments; sieving; tensile strength; topsoil; water erosion; water stable soil aggregates; wind erosion; Germany;     Show all 17 Subjects
Abstract:
... Aggregate stability of soils informs about their relative strengths against erosive forces and mechanical disruption; however, the many methods of assessment are not of equal potential in discriminating management effects. Moreover, the index to mimic the actual behaviour of field soils is not readily discernable from such assessment. In this study involving a silt-loam Luvisol on long-term tillag ...
DOI:
10.1016/j.still.2019.02.002

17. Changes in distribution and microstructure of bauxite residue aggregates following amendments addition

Author:
Xue, Shengguo; Ye, Yuzhen; Zhu, Feng; Wang, Qiongli; Jiang, Jun; Hartley, William
Source:
Journal of environmental sciences (China) 2019 v.78 pp. 276-286
ISSN:
1001-0742
Subject:
aggregate stability,   etc   ; bauxite; byproducts; fractal dimensions; gypsum; industry; land degradation; micro-computed tomography; microstructure; porosity; refining; scanning electron microscopy; soil formation; surface area; vegetation; vermicomposts;     Show all 16 Subjects
Abstract:
... Bauxite residue is a highly alkaline byproduct which is routinely discarded at residue disposal areas. Improving soil formation process to revegetate the special degraded lands is a promising strategy for sustainable management of the refining industry. A laboratory incubation experiment was used to evaluate the effects of gypsum and vermicompost on stable aggregate formation of bauxite residue. A ...
DOI:
10.1016/j.jes.2018.10.010

18. Roles of soil organic carbon and iron oxides on aggregate formation and stability in two paddy soils

Author:
Xue, Bin; Huang, Li; Huang, Yanan; Zhou, Fangliang; Li, Feng; Kubar, Kashif Ali; Li, Xiaokun; Lu, Jianwei; Zhu, Jun
Source:
Soil & tillage research 2019 v.187 pp. 161-171
ISSN:
0167-1987
Subject:
aggregate stability,   etc   ; binding agents; hydrogen peroxide; iron; iron oxides; mixing; organomineral complexes; oxalates; paddy soils; soil aggregation; soil conservation; soil organic carbon; soil structure; topsoil; China;     Show all 15 Subjects
Abstract:
... Knowledges of aggregate stability and formation depending on soil organic carbon (SOC) and iron oxides are essential to the conservation of soil structure. In this work, the effects of SOC and different forms of iron oxides on the stability of aggregates of paddy soils were determined by applying the Le Bissonnais (LB) and extractions method by water, oxalate (OA), dithionite–citrate–bicarbonate ( ...
DOI:
10.1016/j.still.2018.12.010

19. Temporal dynamics of paddy soil structure as affected by different fertilization strategies investigated with soil shrinkage curve

Author:
Fang, Huan; Zhang, Zhongbin; Li, Daming; Liu, Kailou; Zhang, Kun; Zhang, Weijian; Peng, Xinhua; Zhou, Hu
Source:
Soil & tillage research 2019 v.187 pp. 102-109
ISSN:
0167-1987
Subject:
aggregate stability,   etc   ; drying; fertilizer application; green manures; mineral fertilizers; organic fertilizers; paddy soils; pig manure; shrinkage; soil aggregates; soil density; soil sampling; soil structure; temporal variation; tillage;     Show all 15 Subjects
Abstract:
... The paddy soil presents strong structural dynamics due to tillage and frequent Wetting/Drying (WD) cycles. Fertilization practices can affect soil structure and therefore may alter their dynamics. The aim of this study was to investigate the temporal dynamics of paddy soil structure as affected by fertilization strategies using soil shrinkage characteristics. Four long-term fertilization treatment ...
DOI:
10.1016/j.still.2018.12.006

20. The effect of four calcium‐based amendments on soil aggregate stability of two sandy topsoils

Author:
Vargas, Gabriela; Verdejo, José; Rivera, Adrian; Suárez, Domingo; Youlton, Cristian; Celis-Diez, Juan L.; Le Bissonnais, Yves; Dovletyarova, Elvira A.; Neaman, Alexander
Source:
Zeitschrift für Pflanzenernährung und Bodenkunde 2019 v.182 no.2 pp. 159-166
ISSN:
1436-8730
Subject:
aggregate stability,   etc   ; calcium carbonate; calcium chloride; calcium hydroxide; calcium oxide; calcium sulfate; carbon dioxide; flocculation; mechanism of action; soil aggregates; soil amendments; soil degradation; solubility; topsoil;     Show all 14 Subjects
Abstract:
... The structural stability of soil is a physical characteristic that affects soil degradation processes. Calcium‐based amendments, such as calcium carbonate, calcium sulfate, and calcium oxide/hydroxide, have been shown to improve the stability of soil aggregates. This study seeks to determine which calcium‐based soil amendments, and at what concentration, are the most efficient in improving aggrega ...
DOI:
10.1002/jpln.201700562