大熊猫国家公园阿坝片区生态系统质量时空变化分析

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中图分类号：P237 文献标志码：A 文章编号：2095-2945(2025)18-0092-05

Abstract:ThestudyareaistheAbaareaoftheGiantPandaNationalPark．UsingGISasthetechnicalplatform,and takingvegetationcoverage,leafareaindex，andtotalprimaryproductivityastheevaluationindicators,amethodofselecting referencevalues byregionandecosystem typewasadopted toconstructtheecosystemqualityindex.Data from2O10and 2020 wereselectedtoanalyzetheecosystemqualityinthestudyareafrombothspatialandtemporaldimensions.Theresultsshow that:TheoverallecosystemqualityintheAbaareaoftheGiantPandaNationalParkshowsanimprovingtrend.Theaverage ecosystemqualityvaluesfor2010and2020 were 63.1and6.9,respectively，showinganincreaseof3.8.Theareawherethe ecosystem quality has improved accounts for 29.34% ofthe entire region,while the proportion that has deteriorated accounts for （2 9.3% ，and the proportion that remains largely unchanged accounts for 61.36% .Among them，the highest proportion of conversion was from good to excellent ecosystem levels,reaching 18.95 % .Notably，the changesin Wenchuan，Maoxian,and Songpan were more significant.

Keywords:GiantPandaNationalPark；ecological environmentquality；spatiotemporal changes;remotesensingecological parameter; trend of change; change direction

生态系统质量是对区域生态系统健康状况评估的一个重要指标。（剩余9040字）