基于PSR模型的湖北省生态风险时空变化研究

打开文本图片集

关键词PSR模型；生态风险；时空变化；湖北省中图分类号X826文献标识码A文章编号 0517-6611（2026）02-0071-07doi：10.3969/j.issn.0517-6611.2026.02.011

AbstractTheecologicalisksinHubeiProvincewereevaluatedbasedonthePSRmodel，usinglandcoverdata，populationdensitydata， NDVIdata，thectordataofadministratieboudaisandociconoicdatatropyeightmetod，ompehesiveindexethoda transfermatrix，amicdgreeanderethods，ndtespatiotepoalevoutio，spatialdistrbutionadriskangeateeald. Theresultsshowedtatfro2OtoO2，teoverallcolgicalisinHubeiProvincewasrelativelylowithlwiskadlowrsing the main types，and the proportion of the two types of areas reached over 80% ，but the high risk areas continued to increase;the spatial distributionpaternofcologicalrisksinHubeiProvinceshowedatrendoflwintecentralandwesteegionsndhighinteeastegion， withlowandwerissoupingadantpositioOvetighiskareasspreadtoajorurbanpopulatiocenters;teareafuctuatio ofecologicalrsksinHubeiProvincefrom23toO23showedthatlowiskareashadthelargesttransferout，withatransferoutareaof 中 27680km2. Thelow risk area has shifted to 31 233km2 ，while the high risk area has shifted to 7173km2 .From the perspective of the overall riskchangratewitinthesudyreafrom2toO23，teoverallchangerateofcologcalissinHbeiProvincefrstdecreasedadthn increased，while the change rates of low and high risks increased.

KeywordsPSR model;Ecological risk;Spatiotemporal change;Hubei Province

21世纪以来，受全球气候变化和人口及其活动增加的影响，土地利用变化、能源利用和污染对全球生态环境的影响不断加深1，致使局部区域环境问题加剧，危及区域生态安全和生态环境可持续发展，进而增加了生态风险来源种类及其发生概率和强度[2]。（剩余9920字）