湖南省洞庭湖生态经济区生态保护与修复重点区域的识别研究

Identification of Key Areas for Ecological Protection and Restoration in Dongting Lake Ecological Economic Zone of Hunan Province

提高湖南省洞庭湖生态经济区的生态系统环境承载力,对于维护生态安全具有重要意义。选用空间形态学方法(MSPA)、生态系统服务重要性评价和电路理论模型,判别生态保护修复重点区域。研究表明:生态保护重点区域共识别生态源地17742.35 km^(2),廊道121条,长579.73 km;生态修复重点区域共识别夹点42个,障碍点29个,生态系统服务功能低值区面积4044.46 km^(2);基于生态保护修复重点区域的生态现状,制定针对性生态保护修复策略,为研究区开展生态保护修复工作提供理论依据。

It is great importance to improve the ecological carrying capacity of Dongting Lake Ecological Economic Zone in Hunan Province and maintain ecological security.Spatial morphology method(MSPA),ecosystem service importance assessment and circuit theory model were used to identify key areas of ecological conservation and restoration.The results showed that there were 17742.35 km^(2)of ecological source area,121 corridors,579.73 km long.There were 42 consensus spots and 29 obstacle spots in key areas of ecological restoration,and the area of low value of ecosystem services was 4044.46 km^(2).Based on the ecological status of the key areas of ecological protection and restoration,the targeted ecological protection and restoration strategies were formulated to provide theoretical basis for the ecological protection and restoration work in the study area.