降雨和土地覆被变化对三川河流域水沙的影响分析
Impact Analysis of Precipitation and Land Cover Change on Runoff and Sediment in Sanchuanhe River Basin
张敏1
作者信息
- 1. 山西农业大学水土保持科学研究所 山西太原 030013
- 折叠
摘要
黄河流域气候变化和人类活动对流域水沙过程均产生了深刻的影响.该研究以晋西三川河流域为对象,基于1999-2019年实测水文数据和遥感影像,采用M-K法揭示降雨量、径流量与输沙量的变化特征,结合回归分析法阐明降雨和土地覆被变化对径流、输沙的影响.通过研究,可科学认识降雨和土地覆被变化对三川河流域水沙突变的影响,对黄河流域生态保护和高质量发展具有重要意义.
Abstract
Climate change and human activities in the Yellow River basin have had a profound impact on the runoff-sediment process.Based on the measured hydrological data and remote sensing images from 1999 to 2019,the M-K method was used to reveal the change characteristics of precipitation,runoff and sediment,and the effects of precipitation and land cover change on runoff and sediment were illustrated by regression analysis method.This study helps to scientifically understand the impact of precipitation and land cover change on the sudden changes in water and sediment in the Sanchuanhe River Basin,and is of great significance for ecological protection and high-quality development in the Yellow River Basin.
关键词
三川河流域/径流输沙/降雨/土地覆被Key words
the Sanchuanhe River Basin/runoff and sediment/precipitation/land cover引用本文复制引用
基金项目
山西省水利科学技术研究与推广项目(2021LS018)
山西省水利科学技术研究与推广项目(2023GM37)
出版年
2024
NETL
NSTL
万方数据