大理市土地利用时空变化及其生态环境效应研究  

ANALYSIS OF LAND USE CHANGE AND ITS ECOLOGICAL EFFECTS IN DALI CITY

作　　者：和春兰[1] 费丽娜[1] 沈映政[1] HE Chun-lan;FEI Li-na;SHEN Ying-zheng(Yunnan Land and Resources Vocational College,Kunming 652501,Yunnan,China)

机构地区：[1]云南国土资源职业学院,云南昆明652501

出　　处：《云南地理环境研究》2022年第2期40-48,共9页Yunnan Geographic Environment Research

基　　金：云南国土资源职业学院科技创新团队“自然资源时空大数据应用技术”(2021KJTD03);云南省地矿局科技创新基金“基于CASA模型的澜沧江下游流域植被NPP时空变化研究”(2017JJ05)。

摘　　要：利用2009年、2014年、2019年3期遥感、气候数据等,分析大理市土地利用时空动态变化、驱动力、生态环境效应变化趋势,研究结果表明:(1)近10年,大理市主要以林地、水域、耕地为主,发生转移的地类面积为360.39 km^(2),耕地转出面积最大,主要变更为建设用地、林地和园地,水域、园地的转移面积最小。(2)2014~2019年是土地利用变化相对剧烈的时期,全区综合动态度达3.91%。其中未利用地面积减速最快,园地、建设用地增速最快。(3)人口和经济因素已经成为区域土地利用变化的主要驱动因素,海拔和坡度是重要因素,而降水、植被类型和坡向因素则影响不大。(4)研究区土地覆被状况指数及生态环境质量指数总体上升,值处于0.5~0.6,生态整体向好,但需要警惕由于城市扩张可能带来的生态问题。By using the remote sensing images、climatic data of 2009,2014,2019,this study reveals the spatial-temporal dynamic changes、driving force、ecological environment change trend of land use in Dali City.The results show that:(1)In recent 10 years, Dali City was mainly composed of forest land, water area and cultivated land.The total area of land transfer was 360.39 km^(2).Among them, the transfer of arable land is the largest, It is mainly changed for construction land, forest land and garden land.And the transfer of water and garden land is the smallest.(2)From 2014 to 2019,land use changes were relatively drastic, the comprehensive dynamic attitude reached 3.91% in the whole region.Among them, the unused land area slowed down the fastest, while the garden land and construction land increased the fastest.(3)In recent 10 years, social factors, especially population and economic factors, have become the main driving factors of regional land use change.Elevation and slope are the important factors, while precipitation, vegetation type and slope aspect have little influence.(4)In recent 10 years, the land cover condition index and eco-environmental quality index have been improved, The value of ecological environment quality index is between 0.5 and 0.6,which reflects the good trend of overall development, But we need to be aware of the ecological problems that can arise from urban sprawl.

关 键 词：大理市 土地利用/覆被变化 驱动力 生态环境效应 

分 类 号：P962[天文地球—自然地理学]