华北水利水电大学学报（自然科学版）2024，Vol.45Issue(5)：60-68,9.DOI:10.19760/j.ncwu.zk.2024054
唐白河流域植被覆盖时空变化研究
Research on Spatial and Temporal Changes in Vegetation Cover in the Tangbai River Basin
摘要
Abstract
Based on satellite remote sensing images,meteorological station data and statistical data,Theil-Sen Median trend analysis and Hurst index method were comprehensively used to analyze the spatial pattern,interannual change charac-teristics and development trend of vegetation cover in the Tangbai River Basin from 2000 to 2019.Path analysis was intro-duced to reveal the mechanism of meteorological factors(annual precipitation and average temperature)affecting vegetation cover.The contribution rate of climate change and human activities to vegetation change was quantified by residual analy-sis.The results are as follows.Firstly,the vegetation cover in the Tangbai River Basin is high in the northwest and south-east,and low in the middle.Secondly,during the study period,the vegetation cover of Tangbai River Basin was mainly changed by improving type,which accounted for 96.27%of the total area of the basin.However,the increase of NDVI is small,and there is a greater risk of degradation of vegetation cover in the future.Thirdly,the direct influence of meteoro-logical factors on the change of vegetation cover is greater than the indirect influence,and are mainly seen as contributing to vegetation cover improvement.Annual precipitation is the key meteorological factor to determine vegetation cover change in Tangbai River Basin,and the comprehensive path coefficient is 0.224 9.Finally,the vegetation cover change of Tangbai River Basin is affected by both climate change and human activities,but the influence of human activities is greater than that of climate change.关键词
NDVI/降水/气温/人类活动/唐白河流域Key words
NDVI/precipitation/temperature/human activities/Tangbai River Basin分类
农业科技引用本文复制引用
成毅,张富,张志强,徐婷,高彬,王兴伟..唐白河流域植被覆盖时空变化研究[J].华北水利水电大学学报（自然科学版）,2024,45(5):60-68,9.基金项目
河南省重点研发与推广专项(科技攻关)(222102320236) （科技攻关）
黄河中下游地理空间技术教育部重点实验室(河南大学)开放基金资助项目(GTYR202106) （河南大学）
智慧中原地理信息技术河南省协同创新中心和时空感知与智能处理自然资源部重点实验室基金资助项目(212106) （212106）
河南省高等学校重点科研项目(22A170012). （22A170012）
