摘要
基于地理信息系统空间分析方法、Mann-Kendall秩次相关法和景观格局指数分析法,探究2000—2015年景观格局变化对三岔河上游径流量的影响。结果表明:在变化趋势上,1990—2015年间的年降水量与年径流量变化趋势存在一致性,但是年径流量的变化幅度大于年降水量的;在景观水平上,径流量变化与最大斑块面积指数、景观形状指数、聚集度指数呈正相关,而与景观破碎度、Shannon多样性指数、Shannon均匀度指数呈负相关;在类型水平上,径流量变化与林地、草地的散布及并列指数呈负相关,而与建设用地、耕地的最大斑块面积指数呈正相关。
Based on geographic information system spatial analysis method,Mann-Kendall rank correlation method,and landscape pattern i ndex analysis method,the effects of landscape pattern change on runoff in upstream of the Sancha River from 2000 to 2015 was researched.The results show that on change trends,change trends of annual precipitation and annual runoff are consistent from 1990 to 2015,but variation extent of annual runoff is greater than that of annual precipitation.On landscape level,runoff changes are positively correlated with maximum patch area index,landscape shape index,and contagion index,while are negatively correlated with landscape fragmentation,Shannon diversity index,and Shannon evenness index.On type level,runoff changes are negatively correlated with woodland and grassland spread as well as juxtaposition index,while are positively correlated with the maximum patch area index of construction land and cultivated land.
作者
王杰
赵翠薇
贺中华
田仁伟
徐志荣
WANG Jie;ZHAO Cuiwei;HE Zhonghua;TIAN Renwei;XU Zhirong(School of Geography and Environmental Science,Guizhou Normal University,Guiyang 550025,Guizhou,China;Collaborative Innovation Center for Ecological Environment Protection and Resource Utilization in Karst Mountains,Guiyang 550001,Guizhou,China)
出处
《济南大学学报（自然科学版）》
CAS
北大核心
2021年第4期335-342,共8页
Journal of University of Jinan(Science and Technology)
基金
国家自然科学基金重大研究计划项目(41471032)
国家自然科学基金委员会-贵州省人民政府喀斯特科学研究中心项目(u1612441)。
关键词
河流水文
径流量变化特征
Mann-Kendall秩次相关法
景观格局指数法
三岔河上游
river hydrology
runoff change characteristics
Mann-Kendall rank correlation method
landscape pattern index analysis method
upstream of the Sancha River
