關鍵詞:土地利用沖突;MOP模型;PLUS模型;格局優化;洱海流域中圖分類號:X321;F301.24 文獻標志碼:A 文章編號:2095-6819(2025)05-1217-12 doi:10.13254/j.jare.2024.0298
Spatialand temporal evolutionof landuseconflicts in theErhai basinand predictionbymulti-scenario simulation
HEZiling123,CHENYunchun,GUOXiaofei,ZHANGYunt,ZHANGYing,,HUANGYunan1,2,LUXingpeng,SHYuzhu1, ZENG Weijun1,2,3*
(1.ColegeofWaterRsoucs,YungluralUnesiKuing,ina;EngieingesearchCeterfoG FarmlandandCarbonEmissionReductioninYunanUniversities,Kunming65O2O1,China;3.InternationalJointResearchnd DevelopmentCenterforSmartAgricultureandWaterSfetyinYunnanProvice,Kuming6521,China;4.ColegeofResousnd Environment, Yunnan Agricultural University,Kunming 65o2O1, China)
Abstract:Iordertoacuratelyidentifyandmeasureregioallanduseonflictsandcearlypresenttherspatialandtemporalevolution thisstudytakestheErhaibasinastheresearchobject,accuratelyextractfourperiodsoflandusedatabycombiningmultiscale segmentationnddostagorit,ostuctlandueoasurtodel,stemaiallyaleraes lawsofspatial-tempralevoutionoflandusecolctsfro1992to022,andiovativelyoupletheMultiectivePlag(OP)andtheSmulationofLandUseChanges(PLUS)models tosimulatethelandusepatersandcalculatethelanduseconflictsunderfour developmentscenariosin2035.TheresultsshowedthatthelanduseconflictsintheErhaibasinfrom1992to2O22showedanincreasing andhedecresidieofcatedtedoingasofitdldi inthenaturalecologicalreservessuchastheCangshan MountainandtheErhaiSea.Intheresultsofthedistributionofthelanduse structureofthewatersheduderdiferentdevelopmentsenarios,theonstructionlandinteeconomicdevelopmentscenario(ED)was significantlyexpanded,withanicreaseof5.5percetagepintsi5comparedwithO2,andtheeologicalprotetioad developmentsar)idoeetiotologaloealprotetineatesditestnd andwaterareaeingteoscaged,itceaseof.,7ndOprtagepotsspecielymparedithlete sustainabledevelopmentscenario(SD)focus moreonecologicalprotectionofthewatershed.TheareachangesofeachcategoryintheSD weremorebalanced,whichwasintemiddlerangebetweentheEDndTDscenarios.TheSscenariohasthelowestleveloflanduse conflictandtheoptimalpatenlayoutinthewatershdasawole,withapatchdensityvalueofO.18andanedgedensity(ED)value of7.9,withaorebalacedhanginteareaofchategorythanineoterseariosndwittheowestdegreeofragmetatioand complexityofthelandscapepatt.TheSDsenariocanobtaintheoptimallnduselayoutofErhaibasininO35undercurrentpolicy planning.
Keywords:land use conflict; MOPmodel; PLUS model; pattern optimization;Erhai basin
近年來,人類活動影響了土地利用格局,建設用地大量擴張,侵占了林地、草地和濕地等生態用地,導致土地利用沖突不斷加重[1-4。而土地利用沖突制約著土地資源的可持續利用,側重經濟發展的重心導致其在一定程度上忽視了土地利用沖突及其所帶來的生態環境負面效應,導致生態空間被不斷侵占。土地利用沖突導致洱海流域出現農業土地退化、水土流失、水質污染及生態環境破壞等問題,對地區經濟發展和生態平衡構成嚴重威脅。因此,分析洱海流域土地利用沖突時空演變特征及規律,并進行多情景模擬預測,對加強洱海流域的生態保護具有重要的現實意義。
國內外關于土地利用沖突的研究主要從土地資源利用效率[6-8]、沖突成因與演化[9-10]沖突治理與調控[11-13]等方面展開。隨著空間信息技術發展,景觀格局指數法、情景分析和模型模擬等方法,也被廣泛應用于土地利用沖突[14-16、土地利用結構與布局優化的研究[17-19]。但是當前,在摸清土地利用沖突時空演變規律基礎上,開展空間布局優化方面存在著一定的局限性,許多模型忽略了不同土地利用類型間的相互作用,不能深入探究驅動因子對土地利用變化的影響;且空間結構的布局優化大多基于一種模型進行,缺少模型之間的聯系;在情景分析方面,大多研究只對比經濟優先發展情景與生態優先發展情景下土地利用結構的差異2],導致其土地利用格局難以兼顧社會、經濟和生態效益。……