东部沿海典型县域国土空间生态安全格局构建与优化

——以响水县为例

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中图分类号：X321：F301.24 文献标志码：A 文章编号：2095-1329（2025）02-0154-07

Abstract：Identifyingkeyareas foreologicalprotectionandrestoration trough scientifcmethods holdssignificantimportance.By assessingtheecosystemservicefunctionofXiangshui Countyanalyingtheexistingecologicalproblems，usingMCRmodeltoput forwardtheoptimzationplanofologicalsecuritypate，andexplorethekeydirectionofecologicalprotetionandrestoationof typical counties in the east coast.The results showed that： ① Three main ecological problems should be paid attention to in the ecological protectioandrestorationworkinthestudyarea：tereductionofcoastal wetlandarea，thelackofcoectivityofrivernetworkand water system，and the fragmentation of cultivated land in some areas; ② The ecological source area of 151.9km2 wasidentified， concentrated in the coastal area; 376.4km ecological corridor is generated， showing a“north-south symmetry"; ③ Based on optimizing andconstructingtheecologicalsecuritypateplanof“onescreen，twocoresandthreebelts”，therearethr keyareasforeological protectionandrestorationareidentified，and themaintaskssuchas protecting coastal wetlandsanduimpededriver network were proposedtobuildanecologicalsecuritysysteminwhichtheseaandriverareinterconneted.Thisresearchcanprovideatikingpath andresearchexperiencefortheecologicalprotectionandrestorationworkandplaingcompilationofcountisintheeasteoastal area.

Keywords：ecosystemsrvicefunctionvaluation;eologicalsecuritypate;cologicalprotectioandrestoration;eastecoastal counties

海岸带在国家生态安全屏障体系中占据重要地位，是“三区四带”的关键部分，保护其生态安全具有深远的现实意义[。（剩余12781字）