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1. Contribution of agroecological farming systems to the delivery of ecosystem services

Author:
Boeraeve, Fanny; Dendoncker, Nicolas; Cornélis, Jean-Thomas; Degrune, Florine; Dufrêne, Marc
Source:
Journal of environmental management 2020 v.260 pp. 109576
ISSN:
0301-4797
Subject:
aggregate stability,   etc   ; agroecology; conventional farming; crop production; ecosystem services; environmental sustainability; forage quality; pests; soil aggregates; soil respiration;     Show all 10 Subjects
Abstract:
... Agroecology has been suggested as a promising concept for reconciling agricultural production and environmental sustainability by optimizing ecological processes that deliver ecosystem services (ES) to replace external inputs. While this statement is widely agreed upon, few assessments of real-life conditions exist that assess multiple ES simultaneously. This paper provides an assessment of seven ...
DOI:
10.1016/j.jenvman.2019.109576

2. New Insights into the Role of Surface Nanobubbles in Bubble-Particle Detachment

Author:
Ding, Shihao; Xing, Yaowen; Zheng, Xi; Zhang, Youfei; Cao, Yijun; Gui, Xiahui
Source:
Langmuir 2020 v.36 no.16 pp. 4339-4346
ISSN:
1520-5827
Subject:
aggregate stability,   etc   ; air; bubbles; confocal laser scanning microscopy; contact angle; glass; hydrophilicity; hydrophobicity; mechanical testing; nanobubbles; wettability;     Show all 11 Subjects
Abstract:
... It is well recognized that an improved flotation recovery can be achieved by introducing nanobubbles to common flotation practice due to the increased capture efficiency between bubbles and particles. However, the specific role of nanobubbles in bubble-particle interactions (collision, attachment, and detachment) is not well understood. In the present study, we explore the role of surface nanobubb ...
DOI:
10.1021/acs.langmuir.0c00359

3. Prediction of soil wind erodibility using a hybrid Genetic algorithm – Artificial neural network method

Author:
Kouchami-Sardoo, I.; Shirani, H.; Esfandiarpour-Boroujeni, I.; Besalatpour, A.A.; Hajabbasi, M.A.
Source:
Catena 2020 v.187 pp. 104315
ISSN:
0341-8162
Subject:
aggregate stability,   etc   ; algorithms; calcium carbonate; erodibility; gravel; model validation; neural networks; prediction; sand; wind; wind erosion; wind tunnels; Iran;     Show all 13 Subjects
Abstract:
... Understanding and consequent modeling of soil wind erodibility is hampered by the complex nature of the eroding processes and limited empirical data. It is often necessary to resort to robust approaches capable of finding correlated patterns among soil erodibility magnitudes and their drivers. To signify soil erodibility to wind, we used a portable wind tunnel to measure wind erosion rate (g m⁻² s ...
DOI:
10.1016/j.catena.2019.104315

4. Increased soil aggregate stability is strongly correlated with root and soil properties along a gradient of secondary succession on the Loess Plateau

Author:
Xiao, Lie; Yao, Kehan; Li, Peng; Liu, Ying; Chang, Enhao; Zhang, Yi; Zhu, Tiantian
Source:
Ecological engineering 2020 v.143 pp. 105671
ISSN:
0925-8574
Subject:
aggregate stability,   etc   ; biomass; cropland; ecosystems; edaphic factors; grasslands; microaggregates; roots; secondary succession; soil organic carbon; temperate grasses; China;     Show all 12 Subjects
Abstract:
... The stability of soil aggregates is an indicator of restoration of soil in degraded ecosystems. A multitude of factors such as properties of plant roots and soil have been suggested to contribute to aggregate stability, but little information is available on the relative importance of these factors in temperate grass zones. We examined how root and soil properties modified aggregate stability alon ...
DOI:
10.1016/j.ecoleng.2019.105671

5. Labile soil carbon fractions as indicators of soil quality improvement under short-term grassland set-aside

Author:
Lussier, Jason M.; Krzic, Maja; Smukler, Sean M.; Neufeld, Katarina R.; Chizen, Chantel J.; Bomke, Art A.
Source:
Soil research 2020 v.58 no.4 pp. 364-370
ISSN:
1838-675X
Subject:
aggregate stability,   etc   ; annuals; crop production; grasses; grasslands; legumes; polysaccharides; prediction; river deltas; soil organic carbon; soil quality; spectroscopy; British Columbia;     Show all 13 Subjects
Abstract:
... Grassland set-asides (GLSA) are fields that are taken out of intensive annual crop production and seeded with a mixture of grasses and legumes for one to four years to improve soil quality. The objectives of this study were to evaluate (i) the relationships among soil organic carbon (SOC), permanganate oxidisable C (POXC), dilute-acid extractable polysaccharides (DAEP) and aggregate stability to d ...
DOI:
10.1071/SR19180

6. Controlling runoff generation and soil loss from field experimental plots through inoculating cyanobacteria

Author:
Sadeghi, Seyed Hamidreza; Kheirfam, Hossein; Zarei Darki, Behrouz
Source:
Journal of hydrology 2020 v.585 pp. 124814
ISSN:
0022-1694
Subject:
aggregate stability,   etc   ; Nostoc; Oscillatoria; arid lands; land degradation; land management; rain; roughness; runoff; sediments; soil cracks; soil erosion; topographic slope; vegetation cover; wet season; Iran;     Show all 16 Subjects
Abstract:
... Controlling runoff generation and soil loss from hillslopes is a priority for land management. The capability of cyanobacteria as inoculants has recently been utilized in land management, and as a result various lab-scale studies have been conducted. The present study conducted a field-pilot experiment in Miandoab City, south of West Azerbaijan Province, North West Iran, to evaluate the success of ...
DOI:
10.1016/j.jhydrol.2020.124814

7. Influence of vegetation restoration on matrix structure and erosion resistance of iron tailings sites in eastern Hebei, China

Author:
Wang, Anning; Huang, Qiuxian; Xu, Xuehua; Li, Xiaogang; Li, Yuling
Source:
Journal of forestry research 2020 v.31 no.3 pp. 969-980
ISSN:
1007-662X
Subject:
aggregate stability,   etc   ; Amorpha fruticosa; Hippophae rhamnoides; Pinus tabuliformis; Rhus typhina; bricks; clay; ecological restoration; engineering; iron; mine tailings; mixed forests; models; sowing; waste disposal sites; China;     Show all 16 Subjects
Abstract:
... The effects of vegetation restoration on matrix structure and erosion resistance of iron tailings were studied at dump sites in Malanzhuang, Qian’an, Hebei province, China. The restoration process involved soil spray sowing restoration model with Rhus typhina, soil and iron tailings admixture spray sowing restoration model with Amorpha fruticosa Linn. and six-hole brick restoration model with Pinu ...
DOI:
10.1007/s11676-019-00906-z

8. Evaluation of machine learning methods to predict soil moisture constants with different combinations of soil input data for calcareous soils in a semi arid area

Author:
Yamaç, Sevim Seda; Şeker, Cevdet; Negiş, Hamza
Source:
Agricultural water management 2020 v.234 pp. 106121
ISSN:
0378-3774
Subject:
aggregate stability,   etc   ; artificial intelligence; bulk density; calcareous soils; field capacity; neural networks; organic matter; pedotransfer functions; soil sampling; soil texture; soil water; wilting point; Turkey (country);     Show all 13 Subjects
Abstract:
... This study evaluated the performance of deep learning (DL), artificial neural network (ANN) and k-nearest neighbour (kNN) models to estimate field capacity (FC) and permanent wilting point (PWP) using four combinations of soil data. The DL, ANN and kNN models are compared with the previous published pedotransfer functions (PTF). The data consist of 256 calcareous soil samples collected from Konya- ...
DOI:
10.1016/j.agwat.2020.106121

9. Pore system characteristics of soil aggregates and their relevance to aggregate stability

Author:
Menon, Manoj; Mawodza, Tinashe; Rabbani, Arash; Blaud, Aimeric; Lair, Georg J.; Babaei, Masoud; Kercheva, Milena; Rousseva, Svetala; Banwart, Steven
Source:
Geoderma 2020 v.366 pp. 114259
ISSN:
0016-7061
Subject:
aggregate stability,   etc   ; Chernozems; X-radiation; forests; grasslands; image analysis; land use; micro-computed tomography; porosity; soil aggregates; soil quality; spores; submergence;     Show all 13 Subjects
Abstract:
... Aggregates are the structural units of soils, and the physical stability is considered to be a keystone parameter of soil quality. However, little is known about the evolution of the pore system in aggregates and its importance in defining aggregate stability. In this paper, we investigated the pore system and stability of three dominant macroaggregate sizes (1–2, 2–5 5–10 mm) obtained from a fine ...
DOI:
10.1016/j.geoderma.2020.114259

10. Tillage induces rapid loss of organic carbon in large macroaggregates of calcareous soils

Author:
Ye, Yingying; Xiao, Shuangshuang; Liu, Shujuan; Zhang, Wei; Zhao, Jie; Chen, Hongsong; Guggenberger, Georg; Wang, Kelin
Source:
Soil & tillage research 2020 v.199 pp. 104549
ISSN:
0167-1987
Subject:
aggregate stability,   etc   ; calcareous soils; calcium; carbon dioxide; carbon sequestration; carbonates; greenhouse gas emissions; karsts; leaching; no-tillage; soil aggregates; soil fertility; soil organic carbon; sustainable land management; China;     Show all 15 Subjects
Abstract:
... Soil organic carbon (SOC) sequestration and protection not only mitigate CO₂ emission but also promote soil fertility. Naturally, calcareous soils in the karst area contain significantly higher SOC concentration than the red soils in non-karst area of the same region. After cultivation, calcareous soils are susceptible to SOC loss, with substantial SOC loss occurring within two years. However, the ...
DOI:
10.1016/j.still.2019.104549

11. Soil organic carbon, extracellular polymeric substances (EPS), and soil structural stability as affected by previous and current land-use

Author:
Redmile-Gordon, M.; Gregory, A.S.; White, R.P.; Watts, C.W.
Source:
Geoderma 2020 v.363 pp. 114143
ISSN:
0016-7061
Subject:
aggregate stability,   etc   ; agricultural land; binding agents; fallow; grasses; grassland soils; grasslands; land use change; microbial ecology; models; polymers; polysaccharides; soil organic carbon; water stable soil aggregates; United Kingdom;     Show all 15 Subjects
Abstract:
... While soil microbial ecology, soil organic carbon (SOC) and soil physical quality are widely understood to be interrelated — the underlying drivers of emergent properties, from land management to biochemistry, are hotly debated. Biological binding agents, microbial exudates, or ‘extracellular polymeric substances’ (EPS) in soil are now receiving increased attention due to several of the existing m ...
DOI:
10.1016/j.geoderma.2019.114143
PubMed:
32255838
PubMed Central:
PMC7043399

12. Coastal saline soil aggregate formation and salt distribution are affected by straw and nitrogen application: A 4-year field study

Author:
Xie, Wenjun; Chen, Qingfeng; Wu, Lanfang; Yang, Hongjun; Xu, Jikun; Zhang, Yanpeng
Source:
Soil & tillage research 2020 v.198 pp. 104535
ISSN:
0167-1987
Subject:
aggregate stability,   etc   ; calcium; coasts; corn; fertilizer rates; field experimentation; growing season; microaggregates; nitrogen; saline soils; salinity; soil organic carbon; soil restoration; soil salinity; wheat; wheat straw;     Show all 16 Subjects
Abstract:
... Little is known about the effects of straw incorporation on saline soil aggregate formation or salt distribution in coastal zones. In this study, a 4-year coastal wheat/maize rotation field experiment was employed. In each growing season, maize/wheat straw was applied at the rates of 5.0 × 10³ kg ha⁻¹ (S) and 1.0 × 10⁴ kg ha⁻¹ (2S), and inorganic N was applied at the rates of 75 kg ha⁻¹ (N1/2), 15 ...
DOI:
10.1016/j.still.2019.104535

13. Soil aggregate stability and aggregate‐associated organic carbon under different land use or land cover types

Author:
Dorji, Tshering; Field, Damien J.; Odeh, Inakwu O. A.
Source:
Soil use and management 2020 v.36 no.2 pp. 308-319
ISSN:
0266-0032
Subject:
aggregate stability,   etc   ; Pinus wallichiana; altitude; arid lands; conifers; grasslands; land cover; land use; microaggregates; orchards; organic carbon; paddies; shrublands; soil quality;     Show all 14 Subjects
Abstract:
... Soil aggregate stability (SAS) is an indicator for soil condition and is greatly influenced by land use or land cover (LULC) type and other soil and environmental attributes. This study investigated the soil aggregate‐size distribution, SAS, aggregate‐associated organic carbon (AAOC) and the relative importance of factors affecting SAS and AAOC. Based on conditioned Latin hypercube sampling, soil ...
DOI:
10.1111/sum.12549

14. Responses of soil aggregate stability, erodibility and nutrient enrichment to simulated extreme heavy rainfall

Author:
Yao, Yufei; Liu, Jiao; Wang, Zhao; Wei, Xiaorong; Zhu, Hansong; Fu, Wei; Shao, Mingan
Source:
The Science of the total environment 2020 v.709 pp. 136150
ISSN:
0048-9697
Subject:
aggregate stability,   etc   ; clay fraction; drought; drying; erodibility; global change; nitrogen; organic carbon; rain; rainfall simulation; soil aggregates; soil erosion; soil structure; soil texture; temporal variation;     Show all 15 Subjects
Abstract:
... Extreme precipitation regime under global change context is estimated to cause heavy rainstorms and longer drought intervals. Temporal variations of soil structure and erosion characteristics during and after heavy rainstorms were less investigated, particularly across a wide soil texture gradient. In this study, 15 soils were selected with clay content ranging in 12.9–38.2%. Soil erosion characte ...
DOI:
10.1016/j.scitotenv.2019.136150

15. Impact of permanent traffic lanes on the soil physical and mechanical properties in mechanized sugarcane fields with the use of automatic steering

Author:
Esteban, Diego Alexander Aguilera; de Souza, Zigomar Menezes; da Silva, Reginaldo Barboza; de Souza Lima, Elizeu; Lovera, Lenon Henrique; de Oliveira, Ingrid Nehmi
Source:
Geoderma 2020 v.362 pp. 114097
ISSN:
0016-7061
Subject:
aggregate stability,   etc   ; bulk density; controlled traffic systems; equipment; management systems; mechanical harvesting; mechanization; models; porosity; row spacing; seedbeds; soil compaction; soil penetration resistance; sugarcane; tensile strength; traffic; Brazil;     Show all 17 Subjects
Abstract:
... The randomized traffic during all crop cycles in the Brazilian sugarcane production system enhances soil compaction. The use of automatic steering in controlled traffic farming represents an alternative to minimize soil compaction in the sugarcane fields. Our research aimed to evaluate the changes in the soil physical and mechanical properties under permanent traffic lanes, after three years of su ...
DOI:
10.1016/j.geoderma.2019.114097

16. Importance of soil interparticle forces and organic matter for aggregate stability in a temperate soil and a subtropical soil

Author:
Yu, Zhenghong; Zheng, Yanyun; Zhang, Jiabao; Zhang, Congzhi; Ma, Donghao; Chen, Lin; Cai, Taiyi
Source:
Geoderma 2020 v.362 pp. 114088
ISSN:
0016-7061
Subject:
aggregate stability,   etc   ; Ultisols; Vertisols; aluminum; charge characteristics; iron; oxides; pH; potassium chloride; soil aggregates; soil organic matter; soil solution; straw; subtropical soils; temperate soils; van der Waals forces;     Show all 16 Subjects
Abstract:
... Soil organic matter (SOM) and interparticle forces, including the electrostatic repulsive force (ERF), surface-hydration repulsive force (SHRF) and van der Waals attractive force (vDWAF), play crucial roles in aggregate stability. However, few studies investigated their coupled effects on aggregate stability in variably charged soils, in which soil particle interactions are more complex than in pe ...
DOI:
10.1016/j.geoderma.2019.114088

17. Large-Scale, High-Resolution Mapping of Soil Aggregate Stability in Croplands Using APEX Hyperspectral Imagery

Author:
Shi, Pu; Castaldi, Fabio; van Wesemael, Bas; Van Oost, Kristof
Source:
Remote Sensing 2020 v.12 no.4
ISSN:
2072-4292
Subject:
aggregate stability,   etc   ; autocorrelation; cropland; data collection; hyperspectral imagery; least squares; models; remote sensing; soil aggregates; soil degradation; soil organic carbon; topsoil; watersheds;     Show all 13 Subjects
Abstract:
... Investigations into the spatial dynamics of soil aggregate stability (AS) are urgently needed to better target areas that have undergone soil degradation. However, due to the lack of efficient alternatives to the conventional labor-intensive methods to quantify AS, detailed information on its spatial structure across scales are scarce. The objective of this study was to explore the possibility of ...
DOI:
10.3390/rs12040666

18. The influence of soil management on soil health: An on-farm study in southern Sweden

Author:
Williams, Hanna; Colombi, Tino; Keller, Thomas
Source:
Geoderma 2020 v.360 pp. 114010
ISSN:
0016-7061
Subject:
aggregate stability,   etc   ; agricultural productivity; carbon; ecosystem services; farms; indicator species; organic matter; pH; soil quality; soil respiration; soil texture; tillage; Sweden;     Show all 13 Subjects
Abstract:
... Soil health reflects the capacity of a soil to provide ecosystem services. A major challenge of soil management is to support agricultural productivity without jeopardizing other ecosystem services. However, there is relatively little knowledge on how soil management affects soil health in real farm settings. This study investigated the impact of soil management on soil health indicators of 20 far ...
DOI:
10.1016/j.geoderma.2019.114010

19. Tillage-induced effects on SOC through changes in aggregate stability and soil pore structure

Author:
Guo, Yafei; Fan, Ruqin; Zhang, Xiaoping; Zhang, Yan; Wu, Donghui; McLaughlin, Neil; Zhang, Shixiu; Chen, Xuewen; Jia, Shuxia; Liang, Aizhen
Source:
The Science of the total environment 2020 v.703 pp. 134617
ISSN:
0048-9697
Subject:
aggregate stability,   etc   ; Hapludolls; anisotropy; computed tomography; conventional tillage; fractal dimensions; macropores; micropores; no-tillage; plowing; porosity; soil organic carbon; structural equation modeling; China;     Show all 14 Subjects
Abstract:
... Soil structure plays a key role in soil organic carbon (SOC) dynamics. To determine how soil structure and aggregate affects SOC, we collected undisturbed soil cores of 0–5 cm layer (Typic Hapludoll) at an experimental site in Northeast China. The site had been under continuous tillage treatments of conventional tillage (CT) and no tillage (NT) for 17 years. We measured SOC by elemental analysis, ...
DOI:
10.1016/j.scitotenv.2019.134617

20. Effects of different vegetation restoration measures on soil aggregate stability and erodibility on the Loess Plateau, China

Author:
Dou, Yanxing; Yang, Yang; An, Shaoshan; Zhu, Zhaolong
Source:
Catena 2020 v.185 pp. 104294
ISSN:
0341-8162
Subject:
aggregate stability,   etc   ; abandoned land; belowground biomass; ecological restoration; erodibility; grasses; mixed forests; shrubs; soil aggregates; soil organic carbon; total nitrogen; China;     Show all 12 Subjects
Abstract:
... Vegetation restoration may affect soil aggregate stability and the ability of soil to resist erosion. To evaluate the influence of vegetation restoration measures on the stability of soil aggregate and soil erodibility, we chose 7 types of vegetation restoration measures, which included artificial forest (AF), artificial mixed forest (AMF), economic forest (EF), artificial shrub (AS), natural shru ...
DOI:
10.1016/j.catena.2019.104294