IMHE OpenIR  > 山地表生过程与生态调控重点实验室
塘库沉积的~(137)Cs法断代测定三峡库区小流域产沙量
Alternative TitleSediment Yields Measured by Pond Deposits with Application of a ~(137)Cs Fingerprinting Technique for Small Catchments of the Three Gorges Reservoir Region
俱战省1; 严冬春2; 文安邦2; 史忠林2
2018
Source Publication地球与环境
ISSN1672-9250
Volume46Issue:1Pages:76-81
SubtypeArticle
Contribution Rank2
Abstract

本文以三峡库区重庆忠县黄冲子小流域和工农沟小流域为研究区域,依据塘库修建时间(1955年)、退耕还林工程启动时间(2000年)和~(137)Cs示踪技术,确定了小流域不同时期产沙量及产沙模数,并分析比较了不同小流域的塘库沉积物~(137)Cs含量和产沙模数。研究结果表明,黄冲子小流域和工农沟小流域1955~1963年、1963~2000年、2001~2014年的产沙模数均呈下降趋势,库区小流域生态环境得到明显改善;黄冲子小流域不同时期产沙模数均大于工农沟小流域,工农沟塘库沉积物1963年~(137)Cs峰值和表层泥沙~(137)Cs浓度均小于黄冲子塘库,主要与小流域的土地利用类型以及侵蚀方式有关。在以后的研究中,应该加强库区小流域沟道侵蚀产沙量的定量估算,为长江经济带生态环境建设提供参考依据。

Other Abstract

A study on sediment yields and sediment yield moduli during different periods of 1955-1963, 1963-2000 as well as 2001-2014 forHuangchongzi and Gongnonggou catchments in Zhongxian County, the Three Gorges Reservoir Region (TGRR) by using ~(137)Cs technique was conducted in this paper, based on the start-time of Grain to Green project (2000) as well as pond construction date (1955). Results indicate that sediment yield moduli of 1955-1963, 1963-2000, and 2001-2014 for Huangchongzi and Gongnonggou catchments display declining trends. The ecological environment of the catchments has become better than before. Sediment yield moduli of different periods for Huangchongzi catchment were apparently higher than those for Gonnonggou catchment. However, in 1963 year peak value of ~(137)Cs and surface sediment ~(137)Cs activities for Gonnonggou pond sediment core are both much lower than those for Huangchongzi catchment, which may be caused by different land use types and erosion pattern. In the future, the research on quantifying sediment yield from gully erosion should to be paid more attention to. This study could provide scientific reference for the ecological environmental construction of the Yangtze River Economic Belt.

Keyword~(137)Cs ~(137)Cs Pond Catchment Sediment Yield Modulus Yangtze River Economic Belt
DOI10.14050/j.cnki.1672-9250.2018.46.010
Indexed ByCSCD
Language中文
CSCD IDCSCD:6178811
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23032
Collection山地表生过程与生态调控重点实验室
科技与合作处
Corresponding Author严冬春
Affiliation1.宝鸡文理学院地理与环境学院陕西省灾害监测与机理模拟重点实验室;
2.中国科学院水利部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
Corresponding 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
俱战省,严冬春,文安邦,等. 塘库沉积的~(137)Cs法断代测定三峡库区小流域产沙量[J]. 地球与环境,2018,46(1):76-81.
APA 俱战省,严冬春,文安邦,&史忠林.(2018).塘库沉积的~(137)Cs法断代测定三峡库区小流域产沙量.地球与环境,46(1),76-81.
MLA 俱战省,et al."塘库沉积的~(137)Cs法断代测定三峡库区小流域产沙量".地球与环境 46.1(2018):76-81.
Files in This Item:
File Name/Size DocType Version Access License
塘库沉积的_137_Cs法断代测定三峡库(303KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[俱战省]'s Articles
[严冬春]'s Articles
[文安邦]'s Articles
Baidu academic
Similar articles in Baidu academic
[俱战省]'s Articles
[严冬春]'s Articles
[文安邦]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[俱战省]'s Articles
[严冬春]'s Articles
[文安邦]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 塘库沉积的_137_Cs法断代测定三峡库区小流域产沙量_俱战省.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.