Effects of earthworm casts on water and salt movement in typical Loess Plateau soils under brackish water irrigation
文献类型：期刊论文
| 作者 | Li, Yanpei1,2; Wang, Jiao4; Shao, Ming'an1,2,3,4 |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 出版日期 | 2021-06-30 |
| 卷号 | 252页码:9 |
| 关键词 | Earthworm cast Water movement Salt distribution Brackish water irrigation |
| ISSN号 | 0378-3774 |
| DOI | 10.1016/j.agwat.2021.106930 |
| 通讯作者 | Wang, Jiao(wangjiao@igsnrr.ac.cn) |
| 英文摘要 | Soil salinization severely degrades agricultural land and significantly impacts agricultural productivity. Earthworm casts, as a pollution-free improver, can effectively enhance the structure and properties of soil; however, their effects on water and salt movement in soil, under brackish water irrigation, remain unclear. In this study, we conducted laboratory experiments to investigate the effects of earthworm cast treatments under four application rates (untreated, 1%, 3%, and 5% of soil weight) on water and salt movement in anthrosols (CS) and cambisols (AS) from the Loess Plateau. The application of earthworm casts was found to inhibit soil infiltration and evaporation, except for the 1% treatment in CS; inhibition also increased with more concentrated treatments. Compared to that in untreated soil, the infiltration rate and cumulative evaporation in cast-treated CS decreased by 23.9-32.2% and 5.1-9.8%, whereas in AS, they decreased by 17.6-28.5% and 8.6-20.7%. The application of earthworm casts significantly reduced the electrical conductivity of the upper 20 cm of soil, and the reduction increased with more concentrated treatments. Compared with untreated soil, the application of earthworm casts significantly reduced the sodium absorption ratio in the upper 0-20 cm by 15.6-31.1% in CS and 12.2-28.1% in AS. Applying earthworm casts significantly reduced the exchangeable sodium percentage of soil at 0-20 cm by 16.5-25.9% in CS and 13.5-22.5% in AS. Therefore, the application of earthworm casts effectively alleviated soil salinity and sodicity in both soil types by reducing the salt content in the upper 0-20 cm under brackish water irrigation. |
| WOS关键词 | SALINE-SODIC SOIL ; MULCHED DRIP IRRIGATION ; MOISTURE ; CROP ; VERMICOMPOST ; RECLAMATION ; EVAPORATION ; MANAGEMENT ; DRAINAGE ; BIOCHAR |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences, China[XDA23070202] |
| WOS研究方向 | Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000663329300005 |
| 出版者 | ELSEVIER |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences, China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/164170]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Jiao |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observ & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Yanpei,Wang, Jiao,Shao, Ming'an. Effects of earthworm casts on water and salt movement in typical Loess Plateau soils under brackish water irrigation[J]. AGRICULTURAL WATER MANAGEMENT,2021,252:9. |
| APA | Li, Yanpei,Wang, Jiao,&Shao, Ming'an.(2021).Effects of earthworm casts on water and salt movement in typical Loess Plateau soils under brackish water irrigation.AGRICULTURAL WATER MANAGEMENT,252,9. |
| MLA | Li, Yanpei,et al."Effects of earthworm casts on water and salt movement in typical Loess Plateau soils under brackish water irrigation".AGRICULTURAL WATER MANAGEMENT 252(2021):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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