2000—2023年塔里木河下游NDVI动态变化及趋势分析  

Dynamic Change and Trend Analysis of NDVI in Lower Reaches of Tarim River from 2000 to 2023

作　　者：王光焰 梁伊 张思源 Wang Guangyan;Liang Yi;Zhang Siyuan(Xinjiang Tarim River Basin Administration,Korla 841000,China;Water Resources Planning Institute,Xinjiang Uygur Autonomous RegionWater Resources Department,Urumqi 830011,China;Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,China)

机构地区：[1]新疆塔里木河流域管理局,新疆库尔勒841000 [2]新疆维吾尔自治区水利厅水资源规划研究所,乌鲁木齐830011 [3]中国科学院新疆生态与地理研究所,乌鲁木齐830011

出　　处：《黑龙江科学》2025年第6期60-63,共4页Heilongjiang Science

摘　　要：Google Earth Engine(GEE)是当前全球最先进的地理大数据分析和处理平台,具备强大的遥感监测能力,可用于探索地表植被动态变化。基于GEE云平台,对2000—2023年塔里木河下游地区的归一化植被指数(NDVI)进行研究,分析其变化趋势。研究结果显示,塔里木河下游地区NDVI年度均值的平均水平为0.075,变化范围在0.05~0.1。其中,2021年记录到最大的峰值为0.09,显示出植被覆盖达到最高水平。NDVI变化趋势分析显示,通过MK检验验证了NDVI的变化准确性。通过斜率(Slope)分析发现,在这24年间,塔里木河河道两侧的植被覆盖发生了显著变化,这主要归因于生态输水工程的实施。植被的演变及生态输水对于塔里木河流域具有重要意义,这些研究结果为塔里木河下游地区的生态输水提供了科学依据。Google Earth Engine(GEE)is the world’s most advanced geographic big data analysis and processing platform,with powerful remote sensing monitoring capabilities,which can be used to explore the dynamic changes of surface vegetation.The study analyzes the normalized vegetation index(NDVI)of the lower reaches of Tarim River from 2000 to 2023 and its change trend based on GEE cloud platform.The results show that the average level of annual NDVI in the lower reaches of Tarim River is 0.075,and the variation range is from 0.05 to 0.1.Of these,the largest peak of 0.09 is recorded in 2021,showing the highest level of vegetation cover.The analysis of NDVI trend shows that the accuracy of NDVI change is verified by MK test.Through Slope analysis,it is found that the vegetation coverage on both sides of the Tarim River has changed significantly in the past 24 years,which is mainly attributed to the implementation of ecological water transmission project.Vegetation evolution and ecological water transport are of great significance to the Tarim River Basin.These results provide scientific basis for ecological water transport in the lower reaches of the Tarim River.

关 键 词：塔里木河下游 归一化植被指数 GEE 生态输水 

分 类 号：Q948[生物学—植物学]