山东农业科学2017，Vol.49Issue(3)：106-112,7.DOI:10.14083/j.issn.1001-4942.2017.03.021
气候变化和人类活动对延河流域泥沙影响的定量分析
Quantitative Analysis on Impacts of Climate Change and Human Activities on Sediment Yield in the Yanhe River Basin
摘要
Abstract
The sediment yield and rainfall of 4 sub-basins of the Yanhe River Basin from 1981 to 2010 were studied with Mann-Kendall nonparametric tests and cumulative departure method to investigate the change trend and sediment yield mutation point,and the relationship of flood season and annual sediment yield with the runoff volume were analyzed.Then the impacts of human activities and climate change on sediment yield were studied using the hydrological analysis method.Finally,the relationship between vegetation and sediment yield was expounded combining landscape index.The results showed that the sediment yield in the basin was relatively concentrated,which mainly appeared between June and September.The sediment yield showed a significant downward trend (P ＜ 0.01) during the research period,and the rainfall presented a non-significant downward trend.The sediment yield mutation points were different in different sub-basins,which mainly concentrated in 1996.Human activities played a leading role on the change of sediment yield in 4 sub-basins.In Ganguyi,the influence proportion of human activity was the minimum,which was still 69％.The release of the waterhe loss and soil erosion in sub-basins of the Yanhe River Basin was mainly due to the increase of grassland and forest area and the lower of fragmentation at the same time,and also the reduce of farmland area and the lower of fragmentation.关键词
延河流域/产沙量变化/Mann-Kendall累积距平法/水文分析法/景观格局指数Key words
The Yanhe River Basin/Change of sediment yield/Mann-Kendall/Cumulative departure method/Hydrologic analysis/Landscape pattern index分类
农业科技引用本文复制引用
张君茹,岳大鹏,达兴,程金文,贺燕子..气候变化和人类活动对延河流域泥沙影响的定量分析[J].山东农业科学,2017,49(3):106-112,7.基金项目
国家自然科学基金项目(41390464、41401027、41071012) （41390464、41401027、41071012）
国家重点实验室水科学与工程开放研究基金项目(sklhse-2014-A-01) （sklhse-2014-A-01）
陕西省煤油气水土流失补偿项目“陕西能源开发项目水土流失监测技术研究及信息系统建设” （）
