Restoring soil water content after alfalfa and Korshinsk peashrub conversion to cropland and grassland
文献类型：期刊论文
| 作者 | Ge, Jiamin1,2; Fan, Jun1,3; Yang, Xueting1,2; Luo, Zhanbin3,4; Zhang, Shougang3,4; Yuan, Hongyou3,4 |
| 刊名 | HYDROLOGICAL PROCESSES
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 36期号:3页码:15 |
| ISSN号 | 0885-6087 |
| 关键词 | dried soil layer optimal vegetation restoration model soil water depletion and restoration soil water dynamics vegetation conversion |
| DOI | 10.1002/hyp.14539 |
| 通讯作者 | Fan, Jun(fanjun@ms.iswc.ac.cn) |
| 英文摘要 | The introduction of Korshinsk peashrub (Caragana korshinskii) and alfalfa (Medicago sativa) as restorative vegetation in the Loess Plateau, China has resulted in the widespread occurrence of a dried soil layer (DSL). Soil water recovery with respect to the soil water content (SWC) following the occurrence of a DSL (i.e., DSL-SWC recovery time) and the effect of the number of planting years of restorative vegetation on soil water recovery have received little attention. The aim of this study was to investigate soil water dynamics after vegetation conversion (include three fields of converting cropland with soybean or millet into alfalfa land, three fields of converting alfalfa land into soybean land or four fields of converting peashrub land into natural grassland) in the Liudaogou watershed in a water-wind erosion crisscross region in the Loess Plateau, China. With this aim in mind, we conducted in-situ field experiments for 3 or 5 years and continuously monitored the SWC in a 0-5 m or 0-8 m profile. The results showed that the SWC increased drastically after alfalfa was converted to soybean, especially after consecutive wet year when the SWC of 0-800 cm profile was recharged up to 0.16 cm(3) cm(-3), which means the DSL-SWC in the 0-800 cm profile recovered within 5 years. The DSL-SWC of the profile improved obviously within 3 years after peashrub was converted to natural grass. The SWC of the two fields was 0.16 cm(3) cm(-3) and 0.15 cm(3) cm(-3), respectively. The SWC depletion time was 6.1, 7.5, and 8.4 years in the three fields converted from cropland to alfalfa. Based on our findings, the number of alfalfa planting years should not exceed 8 years. However, planting years of peashrub needs further study because it has excellent drought resistance and a long root system. Taking the advantages and disadvantages of two restoration management methods into account, alfalfa-crop rotations and natural grasslands are the two best choices for ecological restoration in the Loess Plateau, China. |
| WOS关键词 | MEDICAGO-SATIVA L. ; LOESS PLATEAU ; FOREST VEGETATION ; FINE-ROOT ; MOISTURE ; REGION ; DESICCATION ; DEPLETION ; LAYERS ; MODEL |
| 资助项目 | National Natural Science Foundation of China[41830754] ; National Natural Science Foundation of China[41977016] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23070202] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000774895000024 |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/173821]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Fan, Jun |
| 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, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China 4.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Jiamin,Fan, Jun,Yang, Xueting,et al. Restoring soil water content after alfalfa and Korshinsk peashrub conversion to cropland and grassland[J]. HYDROLOGICAL PROCESSES,2022,36(3):15. |
| APA | Ge, Jiamin,Fan, Jun,Yang, Xueting,Luo, Zhanbin,Zhang, Shougang,&Yuan, Hongyou.(2022).Restoring soil water content after alfalfa and Korshinsk peashrub conversion to cropland and grassland.HYDROLOGICAL PROCESSES,36(3),15. |
| MLA | Ge, Jiamin,et al."Restoring soil water content after alfalfa and Korshinsk peashrub conversion to cropland and grassland".HYDROLOGICAL PROCESSES 36.3(2022):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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