IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
长江上游紫色土坡耕地土壤侵蚀~(137)Cs示踪法研究
Alternative TitleA Study on Soil Erosion Rates of the Purple Slope Cultivated Land Using Caesium-137 Technique in the Upper of the Yangtze River
文安邦1; 张信宝1; 王玉宽1; 张一云2; 徐家云2; 白立新2
Corresponding Author文安邦
2001
Source Publication山地学报
ISSN1008-2786
Volume19Issue:S1Pages:56-59
Abstract

运用1 37Cs示踪法对长江上游“长治”水土保持工程重点治理区的云贵高原区、川中丘陵区和三峡库区 8块紫色土坡耕地土壤侵蚀速率研究结果表明 ,影响紫色土坡耕地平均侵蚀速率的主要因子为坡度、坡长、降雨量和土壤粒度组成 ,四个研究区土壤平均侵蚀速率介于 75 8t km2 ·a- 1 ~ 985 4t km2 ·a- 1 ,计算值与长江上游类似地区径流试验场观测值基本一致。

Other Abstract

The upper Yangtze River is one of the most severely eroded areas in China. The purple Cultivated slope land is one of the important sources for river sediment in the mountain regions. The paper reports the results of a preliminary investigation of the potential of using 137 Cs measurements on a purple sloping cultivated land in the upper Yangtze River. Soil samples were mainly collected from the purple cultivated slope land, and the 137Cs reference samples collected from a plain grassland or terraced land where no disturbance sine 1953. The references inventory of 137Cs in sampling region are between 919.8 Bq/m2 and The effective references inventory of 137Cs in sampling region are between 643.9 Bq/m2 and 1425.1 Bq/m2. The soil erosion rates of the purple cultivated slope land of sampling sites are from 758 t/km2·a-1 to 9854 t/km2·a-1.

 

 

Keyword紫色土 土壤侵蚀速率 137cs法
Subject AreaS157
DOI10.16089/j.cnki.1008-2786.2001.s1.012
Indexed ByCSCD ; 北大中文核心
Language中文
Funding Organization国家自然科学基金 (编号:49871008) ; 长江水利委员会水土保持局‘九、五’科技攻关项目
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/476
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
山区发展研究中心
科技与合作处
Affiliation1.中国科学院、水利部成都山地灾害与环境研究所环境研究中心
2.四川大学物理系
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
文安邦,张信宝,王玉宽,等. 长江上游紫色土坡耕地土壤侵蚀~(137)Cs示踪法研究[J]. 山地学报,2001,19(S1):56-59.
APA 文安邦,张信宝,王玉宽,张一云,徐家云,&白立新.(2001).长江上游紫色土坡耕地土壤侵蚀~(137)Cs示踪法研究.山地学报,19(S1),56-59.
MLA 文安邦,et al."长江上游紫色土坡耕地土壤侵蚀~(137)Cs示踪法研究".山地学报 19.S1(2001):56-59.
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