详细信息
文献类型:期刊文献
中文题名:察汗淖尔流域生态质量状况遥感评估
英文题名:Assessment of Ecological Quality by Remote Sensing in Chahanur Watershed
作者:粟美好[1,2] 杨洪国[3] 杜黎明[4]
第一作者:粟美好
机构:[1]中国林业科学研究院湿地研究所,北京100091;[2]中国林业科学研究院生态保护与修复研究所,北京100091;[3]中国林业科学研究院,北京100091;[4]中国林业科学研究院资源信息研究所,北京100091
年份:2025
卷号:21
期号:1
起止页码:26-31
中文期刊名:湿地科学与管理
外文期刊名:Wetland Science & Management
基金:中国林业科学研究院中央级公益性科研院所基本科研业务费专项资金察汗淖尔流域林草综合治理研究(CAFYBB2021YJ001)。
语种:中文
中文关键词:生态系统质量指数;生态质量状况;遥感;察汗淖尔流域
外文关键词:Ecosystem quality index;Ecological quality status;Remote sensing;Chaghanur watershed
分类号:X826
摘要:察汗淖尔流域作为我国华北地区的重要生态屏障,阻挡风沙向南侵袭。有效评估流域生态质量状况对察汗淖尔生态系统综合修复策略的提出至关重要。遥感技术具有覆盖范围大、时间和空间分辨率高的特点,常被用于大区域的生态安全质量评估。本研究综合利用2010—2017年的GLASS叶面积指数数据集、2010年、2015年和2019年3期土地利用现状遥感监测产品、1990—2019年的植被覆盖度数据集、MODIS遥感影像等,结合公开数据集和野外实地调查数据,对察汗淖尔流域生态质量状况进行了评估。评估方法提取了平均植被覆盖度(FVC)、叶面积指数(LAI)、净初级生产力(NPP)等遥感指标,并构建了生态系统质量指数。结果表明:2010—2019年流域生态系统质量呈先下降后上升的变化趋势,2010—2015年下降了1.39,2015—2019年上升了3.79,表明流域的生态系统质量经历了先变差后变好的过程,整体上呈略微改善趋势。
The Chahanur watershed is an important ecological barrier to prevent the sandstorm from encroaching southward in North China.It is very important to realize the effective assessment of the ecological quality of the watershed to put forward a comprehensive restoration strategy for the ecosystem in Chahanur.Remote sensing technology has the characteristics of large coverage area,high temporal and spatial resolution,and is often used to assess the quality of ecological security in large areas.This study comprehensively used the GLASS leaf area index dataset from 2010 to 2017,the remote sensing monitoring products of land use in 2010,2015 and 2019,and the vegetation coverage data from 1990 to 2019,MODIS remote sensing images,etc.,combined with the open data set and the field survey data,to evaluate the ecological quality of the Chahanauer watershed.The assessment method extracted the mean vegetation coverage(FVC),leaf area index(LAI),net primary productivity(NPP)and other remote sensing indicators,and constructed the ecosystem quality index.The results showed that the ecosystem quality of the watershed decreased first and then increased from 2010 to 2019,with a decrease of 1.39 from 2010 to 2015 and an increase of 3.79 from 2015 to 2019,indicating that the ecosystem quality of the watershed experienced a process of first worsening and then improving,showing a slightly increasing trend on the whole.
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