首页 | 简介 | 作者 | 编者 | 读者 | Ei(光盘版)收录本刊数据 | 网络预印版 | 点击排行前100篇 | English
李 勉,杨剑锋,侯建才,沈中原.黄土丘陵区小流域淤地坝纪录的泥沙沉积过程研究[J].农业工程学报,2008,24(2):.DOI:
黄土丘陵区小流域淤地坝纪录的泥沙沉积过程研究
投稿时间:2007-01-17  修订日期:2007-12-03
中文关键词:  淤地坝  土壤侵蚀  137Cs  泥沙沉积  黄土丘陵区
基金项目:国家自然科学基金黄河联合基金(50479066);黄河水利科学研究院科技发展基金资助(黄科发200603)
作者单位
李 勉 黄河水利科学研究院、水利部黄河泥沙重点实验室郑州 450003 
杨剑锋 黄河水利科学研究院、水利部黄河泥沙重点实验室郑州 450003 
侯建才 西安理工大学水利水电学院西安 710048 
沈中原 西安理工大学水利水电学院西安 710048 
摘要点击次数: 6191
全文下载次数: 2071
中文摘要:淤地坝是黄土丘陵区小流域水土流失治理的重要工程措施之一,在拦蓄泥沙的同时,也记载了小流域侵蚀产沙的历史变化过程及特征。该研究根据流域历史降雨资料,分析了黄土丘陵区关地沟小流域淤地坝1959~1987年泥沙沉积旋回变化及各旋回层泥沙中、小流域沟间地和沟谷地表层土体中放射性同位素137Cs含量,研究了小流域侵蚀产沙变化过程及泥沙主要来源。结果表明:该小流域在淤地坝建设初期,侵蚀产沙强度很大,其后产沙强度由强变弱,呈显著降低趋势,淤地坝内沉积泥沙的70%来源于沟间地;微小流域与较大流域在泥沙来源方面存在较大差异。
Li Mian,Yang Jianfeng,Hou Jiancai,Shen Zhongyuan.Sediment deposition process for a silt dam in a small watershed in Loess Hilly Region[J].Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE),2008,24(2):.DOI:
Sediment deposition process for a silt dam in a small watershed in Loess Hilly Region
Author NameAffiliation
Li Mian Yellow River Institute of Hydraulic Research,Key Laboratory of Sediment Research of Yellow River of Ministry of Water Resources,Zhengzhou 450003,China 
Yang Jianfeng Yellow River Institute of Hydraulic Research,Key Laboratory of Sediment Research of Yellow River of Ministry of Water Resources,Zhengzhou 450003,China 
Hou Jiancai Institute of Water Resources and Hydro-electric Engineering,Xi’an University of Technology,Xi’an 710048,China 
Shen Zhongyuan Institute of Water Resources and Hydro-electric Engineering,Xi’an University of Technology,Xi’an 710048,China 
Key words:silt dams  soil erosion  Cesium-137  sedimentation deposition  Loess Hilly Region
Abstract:In Loess Hilly Region, as one of the most important engineering measures for controlling soil and water losses, silt dams play an important role for reducing sediments and recording the historical variation process and characteristics of sedimentation in a small watershed. Combined with the history rainfall events and 137Cs contents of the silt dam and the surface soil samples of the inter-gully area and the gully side, sediment deposition cycle changes during the period 1959~1987 were analyzed. The sedimentation variation process and the sediment sources were studied in Guandigou watershed in Loess Hilly Region. The results show that in the initial stage of the silt dam construction, the sedimentation is very strong and then reduces greatly. The inter-gully area is the main sediment source area, which accounts for 70% of the total deposited sediment. There is great difference in sediment source between large watersheds and small watersheds.
查看全文   下载PDF阅读器

京ICP备06025802号-3

主办单位:中国农业工程学会 单位地址:北京朝阳区麦子店街41号

服务热线:010-59197076、59197077 传真: 邮编:100125 Email:tcsae@tcsae.org
本系统由北京勤云科技发展有限公司设计

京公网安备 11010502031390号