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Effect of Pisha Sandstone and Biochar on Improving the Physical Properties of a Sandy Soil Under Constant Mechanical Stress

文献类型：期刊论文

作者Yu, Xiao1,2; Ren, Lidong2,4; Jia, Xiaoxu2,4; Dong, Yuhao2,4; Huang, Mingbin3
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2025-11-25
卷号N/A
关键词soil compressibility soil erosion soil water holding capacity X-ray micro-CT
ISSN号1085-3278
DOI10.1002/ldr.70329
产权排序2
文献子类Article ; Early Access
英文摘要Soils in the Jin-Shaan-Meng region are prone to erosion and poor water retention, restricting agricultural productivity. Despite the known benefits of soil amendments like Pisha sandstone and biochar, their combined effects on sandy soil properties remain underexplored, particularly under constant mechanical stress conditions. We conducted a controlled indoor incubation with combinations of five Pisha sandstone ratios (0%, 25%, 50%, 75%, 100%) and three biochar application rates (0%, 2%, 4%) under constant mechanical stress, measuring bulk density, shear strength, hydraulic conductivity, water retention, and X-ray micro-computed tomography (X-ray micro-CT) derived soil structure. The results indicate that both amendment materials significantly increased soil compressibility, as evidenced by decreased bulk density driven by Pisha sandstone's silt-clay fractions optimizing soil particle arrangement, and biochar's low particle density plus porous structure buffering particle compression under constant mechanical stress. However, no significant difference in bulk density was observed between the 2% and 4% biochar treatments. Soil erodibility, assessed through shear strength and aggregate size distribution, was generally increased with biochar alone but substantially reduced at 25%-50% Pisha sandstone content combined with 4% biochar, caused by their synergistic interaction: biochar acts as a cementing agent and Pisha sandstone provides skeletal support to enhance inter-particle occlusion. X-ray micro-CT analysis revealed improved pore structure with the incorporation of biochar and Pisha sandstone by increasing pore connectivity and micropore abundance. Soil water retention was markedly enhanced at the 4% biochar rate, underscoring the critical role of biochar in improving the physical properties of sandy soil.
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WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
WOS记录号WOS:001622391700001
出版者WILEY
源URL[http://ir.igsnrr.ac.cn/handle/311030/217723]  
专题黄河三角洲现代农业工程实验室_外文论文
通讯作者Ren, Lidong; Huang, Mingbin
作者单位1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling, Peoples R China;
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Modern Agr Engn Lab, Beijing, Peoples R China;
3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil & Water Conservat & Desertifica, Yangling, Peoples R China
4.Zhongke Shandong Dongying Inst Geog, Dongying, Peoples R China;
推荐引用方式
GB/T 7714		 Yu, Xiao,Ren, Lidong,Jia, Xiaoxu,et al. Effect of Pisha Sandstone and Biochar on Improving the Physical Properties of a Sandy Soil Under Constant Mechanical Stress[J]. LAND DEGRADATION & DEVELOPMENT,2025,N/A.
APA Yu, Xiao,Ren, Lidong,Jia, Xiaoxu,Dong, Yuhao,&Huang, Mingbin.(2025).Effect of Pisha Sandstone and Biochar on Improving the Physical Properties of a Sandy Soil Under Constant Mechanical Stress.LAND DEGRADATION & DEVELOPMENT,N/A.
MLA Yu, Xiao,et al."Effect of Pisha Sandstone and Biochar on Improving the Physical Properties of a Sandy Soil Under Constant Mechanical Stress".LAND DEGRADATION & DEVELOPMENT N/A(2025).

入库方式： OAI收割

来源：地理科学与资源研究所

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