Determination of land salinization causes via land cover and hydrological process change detection in a typical part of Songnen Plain
文献类型：期刊论文
| 作者 | Wang Zhiyong1,2; Li Lijuan1 |
| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 2018-08-01 |
| 卷号 | 28期号:8页码:1099-1112 |
| 关键词 | change detection hydrological process land cover land salinization Songnen Plain |
| ISSN号 | 1009-637X |
| DOI | 10.1007/s11442-018-1544-3 |
| 通讯作者 | Li Lijuan(lilj@igsnrr.ac.cn) |
| 英文摘要 | Causes of land salinization were determined via land cover and hydrological process change detection in a typical part of Songnen Plain. The area of saline land increased from 4627 km(2) in 1980 to 5416 km(2) in 2000, and then decreased to 5198 km(2) in 2015. The transformation between saline land and other land covers happened mainly before 2000, and saline land had transformation relationship mainly with cropland, grassland, and water body. From 1979 to 2007, groundwater depth fluctuated to increase and was mainly deeper than 3.3 m. Spatially, the area of the region where groundwater depth was deeper than 3.3 m increased from 46.7% in 1980 to 84% in 2000, while the area of the region almost occupied the whole region after 2000. Precipitation and evaporation changed little, while runoff decreased substantially. Shallow groundwater, change of cropland, grassland, and water body induced from human activities and decrease of runoff and increase of irrigation and water transfer from outer basin were the main reasons for land salinization before 2000. After 2000, groundwater with relatively great depth could not exert great influence on land salinization. Protection of grassland and wetland prevented the increase of the area of saline land. |
| WOS关键词 | SOIL-SALINITY ; REGION ; CROP ; PRODUCTIVITY ; CONSTRAINTS ; CHINA |
| 资助项目 | Key Deployment Project of CAS[KFZD-SW-314] ; National Natural Science Foundation of China[91547114] |
| WOS研究方向 | Physical Geography |
| 语种 | 英语 |
| WOS记录号 | WOS:000440115800005 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Key Deployment Project of CAS ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/54469]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li Lijuan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Zhiyong,Li Lijuan. Determination of land salinization causes via land cover and hydrological process change detection in a typical part of Songnen Plain[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2018,28(8):1099-1112. |
| APA | Wang Zhiyong,&Li Lijuan.(2018).Determination of land salinization causes via land cover and hydrological process change detection in a typical part of Songnen Plain.JOURNAL OF GEOGRAPHICAL SCIENCES,28(8),1099-1112. |
| MLA | Wang Zhiyong,et al."Determination of land salinization causes via land cover and hydrological process change detection in a typical part of Songnen Plain".JOURNAL OF GEOGRAPHICAL SCIENCES 28.8(2018):1099-1112. |
入库方式： OAI收割
来源：地理科学与资源研究所
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