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[1]MA Hongyu,LI Baoguo,CAI Bin,et al.Effect of Soil Cover on Soil Wind Erosion in Arid and Semi-arid Regions[J].Research of Soil and Water Conservation,2023,30(02):29-35.[doi:10.13869/j.cnki.rswc.2023.02.039]

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Effect of Soil Cover on Soil Wind Erosion in Arid and Semi-arid Regions

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 02 Page number: 29-35 Column: Public date: 2023-03-10

Title:: Effect of Soil Cover on Soil Wind Erosion in Arid and Semi-arid Regions

Author(s):: MA Hongyu^1,2, LI Baoguo³, CAI Bin⁴, LI Ying¹, GE Le¹, ZHANG Dan^1,5; (1.Nature Conservancy, Beijing 100600, China; 2.College of Soil and Water Conservation, Beijing Forestry University, Beijing 100089, China; 3.Key Laboratory of Arable Land Conservation in North China, Ministry of Agriculture and Rural Affairs, Key Laboratory of Agricultural Land Quality, Ministry of Natural Resources, College of Land Science and Technology, China Agriculture University, Beijing 100193, China; 4.Sinochem Modern Agriculture Limited Company, Beijing 100032, China; 5......)

Keywords:: wind erosion; soil cover; META; arid and semi-arid regions

CLC:: S157

DOI:: 10.13869/j.cnki.rswc.2023.02.039

Abstract:: In order to investigate the effects of soil cover on soil erosion and topsoil characteristics in arid and semi-arid regions, and to explore new opportunities for agricultural development, published data on soil cover in arid and semi-arid regions at home and abroad were collected and meta-analysis was used to analyze the effects of different mulching practices, like cover crops, straw mulching and stubble remaining, on wind erosion module, soil volume weight, soil water content and soil organic carbon. The results show that:(1)soil mulching can reduce annual wind erosion by about 77.96%; the wind erosion module is closely related to coverage and straw mulching has the highest coverage so it has the best effect on reducing wind erosion;(2)soil mulching can reduce surface(0—20 cm)soil volume weight by around 2.94% to ensure enough pore in soil to keep water and fertilizer, and inhibit soil erosion, among which cover crops work best by 5.26%;(3)soil mulching can increase topsoil water content by around 6.26%, thereby effectively increasing the cohesion between soil particles; in the area with low annual rainfall(≤450 mm). Soil mulching can effectively increase topsoil water content by 10.62%;(4)soil mulching can increase topsoil organic carbon content by 23.54%, thereby cementing soil particles together and improving the soil's resistance to wind erosion; stubble remaining has the best effect, increases organic carbon content by 34.42%; and in cover crops, legume crops have the best effect, increase organic carbon content by 30.76% on average. Overall, the three mulching methods can reduce wind erosion to varying degrees, protect soil and water, and fix carbon, which will be the effective solution to achieve sustainable agricultural development under the background of double-carbon in the future.

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Last Update: 2023-03-10