Soil quality assessment in different dammed-valley farmlands in the hilly-gully mountain areas of the northern Loess Plateau, China
文献类型：期刊论文
| 作者 | Chen Shumin1,2; Jin Zhao1,3; Zhang Jing4; Yang Siqi1,5 |
| 刊名 | JOURNAL OF ARID LAND
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 13期号:8页码:777-789 |
| ISSN号 | 1674-6767 |
| 关键词 | dammed-valley farmland soil quality soil salinization groundwater Chinese Loess Plateau |
| DOI | 10.1007/s40333-021-0014-4 |
| 通讯作者 | Jin Zhao(jinzhao@ieecas.cn) |
| 英文摘要 | There are numerous valley farmlands on the Chinese Loess Plateau (CLP), where suffers from low soil quality and high risk of soil salinization due to the shallow groundwater table and poor drainage system. Currently, research on the evolution processes and mechanisms of soil quality and salinization in these dammed-valley farmlands on the CLP is still inadequately understood. In this study, three kinds of dammed-valley farmlands in the hilly-gully areas of the northern CLP were selected, and the status of soil quality and the impact factors of soil salinization were examined. The dammed-valley farmlands include the new farmland created by the project of Gully Land Consolidation, the 60-a farmland created by sedimentation from check dam, and the 400-a farmland created by sedimentation from an ancient landslide-dammed lake. Results showed that (1) the newly created farmland had the lowest soil quality in terms of soil bulk density, porosity, soil organic carbon and total nitrogen among the three kinds of dammed-valley farmlands; (2) soil salinization occurred in the middle and upper reaches of the new and 60-a valley farmlands, whereas no soil salinization was found in the 400-a valley farmland; and (3) soil salinization and low soil nutrient were determined to be the two important factors that impacted the soil quality of the valley farmlands in the hilly-gully mountain areas of the CLP. We conclude that the dammed-valley farmlands on the CLP have a high risk of soil salinization due to the shallow groundwater table, alkalinity of the loessial soil and local landform feature, thus resulting in the low soil quality of the valley farmlands. Therefore, strengthening drainage and decreasing groundwater table are extremely important to improve the soil quality of the valley farmlands and guarantee the sustainable development of the valley agriculture on the CLP. |
| WOS关键词 | WATER ; SALINIZATION ; SALINITY ; GROUNDWATER ; DYNAMICS ; REGION |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000697364900002 |
| 源URL | [http://ir.ieecas.cn/handle/361006/17016]  |
| 专题 | 地球环境研究所_生态环境研究室 第四纪科学与全球变化卓越创新中心 |
| 通讯作者 | Jin Zhao |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, 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.Xian Inst Earth Environm Innovat, Xian 710061, Peoples R China 5.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier IRCE, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen Shumin,Jin Zhao,Zhang Jing,et al. Soil quality assessment in different dammed-valley farmlands in the hilly-gully mountain areas of the northern Loess Plateau, China[J]. JOURNAL OF ARID LAND,2021,13(8):777-789. |
| APA | Chen Shumin,Jin Zhao,Zhang Jing,&Yang Siqi.(2021).Soil quality assessment in different dammed-valley farmlands in the hilly-gully mountain areas of the northern Loess Plateau, China.JOURNAL OF ARID LAND,13(8),777-789. |
| MLA | Chen Shumin,et al."Soil quality assessment in different dammed-valley farmlands in the hilly-gully mountain areas of the northern Loess Plateau, China".JOURNAL OF ARID LAND 13.8(2021):777-789. |
入库方式： OAI收割
来源：地球环境研究所
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