Identification of ecological restoration of territorial space based on ecosystem service value and ecological security pattern:a case study of Jizhou District,Tianjin City
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为提高区域生态环境质量、维护区域生态系统安全以及推进生态文明建设,以天津市蓟州区为研究区,将生态系统服务价值与生态安全格局相结合,构建生态保护与修复总体空间格局,诊断出修复区域,提出优化策略.结果表明,2011-2021年研究区生态系统服务价值呈现减少趋势;蓟州区生态源地面积为260.67 km2,潜在生态廊道34条,其中关键生态廊道共9条,生态节点共65个;构建"一屏两核三廊四区多点"的生态保护与修复总体空间格局,提出差异化的"四区"优化策略;源地修复区的总面积为224.22 km2,廊道修复区的总长度为260.69 km.
In order to improve the quality of the regional ecological environment,maintain the safety of the regional ecosystem and promote the construction of ecological civilization,Jizhou District in Tianjin City was taken as the research area:its ecosystem service value and ecological security pattern were com-bined to form an overall spatial pattern of ecological protection and restoration,the restoration areas were diagnosed and optimization strategies proposed.The results showed that,from 2011 to 2021,the ecosys-tem service value in the study area underwent a decreasing trend;the ecological source area in Jizhou District was 260.67 km2,with 34 potential ecological corridors,including 9 key ecological corridors and 65 ecological nodes;the overall ecological protection and restoration spatial pattern of"one screen,two cores,three corridors,four zones and multiple points"was formed,and differentiated optimization strate-gies for the"four areas"proposed;the total area of the source restoration area was 224.22 km2,the total length of the corridor restoration 260.69 km.
ecosystem service valueecological security patternecological restoration of territorial spaceJizhou District