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Assessment of soil losses on cultivated land by using the Cs-137 technique in the Upper Yangtze River Basin of China
Zhang, XB; Zhang, YY; Wen, AB; Feng, MY
Corresponding AuthorZhang, XB
2003-02-01
Source PublicationSOIL & TILLAGE RESEARCH
ISSN0167-1987
Volume69Issue:1-2Pages:99-106
SubtypeArticle
AbstractThis 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.
KeywordErosion Rate Sloping Cultivated Land Cs-137 The Upper Yangtze River
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedAgriculture
Indexed BySCI
WOS KeywordCESIUM-137 MEASUREMENTS ; AGRICULTURAL LAND ; EROSION RATES ; MODELS
Language英语
WOS SubjectSoil Science
WOS IDWOS:000181159100009
Citation statistics
Cited Times:62[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10598
Collection成都山地所知识仓储(2009年以前)
山地表生过程与生态调控重点实验室
科技与合作处
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Sichuan Univ, Dept Phys, Chengdu 610064, Sichuan, Peoples R China
Recommended Citation
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.
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