Assessment of soil losses on cultivated land by using the Cs-137 technique in the Upper Yangtze River Basin of China
文献类型：期刊论文
| 作者 | Zhang, XB1 ; Zhang, YY2; Wen, AB1; Feng, MY2
|
| 刊名 | SOIL & TILLAGE RESEARCH
 |
| 出版日期 | 2003-02-01 |
| 卷号 | 69期号:1-2页码:99-106 |
| 关键词 | erosion rate sloping cultivated land Cs-137 the Upper Yangtze River |
| ISSN号 | 0167-1987 |
| 通讯作者 | Zhang, XB |
| 英文摘要 | This paper presents the results of using the Cs-137 technique to assess soil erosion rates of both sloping cultivated land and flat terraces in the Upper Yangtze River Basin, China. The study was carried out on eighteen sloping cultivated fields and four flat terrace fields in eight counties and cities over the eastern part of the basin. The Cs-137-reference inventory ranged from 620.5 to 2573.2 Bq/m(2). For the 18 sloping cultivated fields, the average Cs-137 inventory over a field ranged from 204.9 to 1847.7 Bq/m(2), which accounts for 15-77% of the local 137Cs reference inventory, and the average water erosion rate ranged from 758 to 9854 t/km(2) per year, with erosion rates of <1000 t/km(2) per year in two fields; 1000-5000 t/km(2) per year in eight fields; and >5000 t/km(2) per year in eight fields. It is apparent that most of the sloping cultivated fields suffer severe or very severe soil erosion. For the four terrace fields under this study, the average Cs-137 inventory over a field ranged between 915.8 and 2675.4 Bq/m(2), which accounts for 97-104% of the local Cs-137 reference inventory. However, water erosion is very slight on the terrace fields and little soil is lost from the terraces. The study also indicated that the severity of soil erosion is strongly related to soil texture and slope gradient. (C) 2002 Elsevier Science B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Soil Science |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | CESIUM-137 MEASUREMENTS ; AGRICULTURAL LAND ; EROSION RATES ; MODELS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000181159100009 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/10598]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 科技与合作处 |
| 作者单位 | 1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.Sichuan Univ, Dept Phys, Chengdu 610064, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, XB,Zhang, YY,Wen, AB,et al. Assessment of soil losses on cultivated land by using the Cs-137 technique in the Upper Yangtze River Basin of China[J]. SOIL & TILLAGE RESEARCH,2003,69(1-2):99-106. |
| APA | Zhang, XB,Zhang, YY,Wen, AB,&Feng, MY.(2003).Assessment of soil losses on cultivated land by using the Cs-137 technique in the Upper Yangtze River Basin of China.SOIL & TILLAGE RESEARCH,69(1-2),99-106. |
| MLA | Zhang, XB,et al."Assessment of soil losses on cultivated land by using the Cs-137 technique in the Upper Yangtze River Basin of China".SOIL & TILLAGE RESEARCH 69.1-2(2003):99-106. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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