[Territorially ecological restoration zoning and optimization strategy in Guyuan City of Ningxia, China: Based on the balance of ecosystem service supply and demand].

• DOI: 10.13287/j.1001-9332.202112.024
• Publication Date: 2022-01-01
• Authors: Wenze Yue; Li Hou; Haoxuan Xia; Jingxian Wei; Youpeng Lu
• Keywords: Restoration Ecology

Scientifically identifying the territorially ecological restoration zoning is a vital prerequisite for implementing projects and enhancing environmental quality. Based on remote sensing data, we syste-matically assessed supply demand ecosystem service their relationship in Guyuan City, China by using InVEST model, coordination degree spatial autocorrelation analysis. We carried out coupling demand. Furthermore, corresponding optimization strategies were put forward according to regional characteristics of natural resources socio-economic development. The results showed that areas with high water yield, carbon storage, soil conservation habitat quality mainly located southern part City. population density, economic development level central urban area location towns county government. mismatch services City was dominant, as indicated fact having low average index 0.5, indicating between basically coordinated. diffe-rences geographical pattern, administrative township units could be classified into six zonings: key area, potential reconstruction characteristic agricultural core protection industry construction area. Different management proposed provide scientific support restoration.科学开展生态修复分区是落实差异化修复策略和促进区域提质建设的重要前提。本研究以宁夏固原市为例,基于多源数据,运用InVEST模型、耦合协调度模型、空间自相关等方法,以乡镇为尺度单元量化区域生态系统服务供给量和需求量,构建供需匹配与协调关系,划定生态修复分区,并根据分区内部自然资源和社会经济发展特征提出相应优化策略。结果表明: 固原市产水、固碳、土壤保持和生境质量4种服务供给较高的地区主要位于南部乡镇,人口密度、经济发展水平较高且对生态系统服务需求较大的地区主要位于中心城区和各县城政府驻地所在乡镇。各乡镇生态系统服务供需匹配关系以低供给-高需求和高供给-低需求的空间错配型为主导,且平均协调度指数为0.5,表现为供需关系基本协调。结合生态系统服务供需关系和区域自然地理格局,将固原市划分为生态重点修复区、生态潜在修复区、生态经济重整改造区、特色农业发展区、生态核心保护区和生态产业提质建设区6类,同时提出差异化生态修复路径,为针对性开展生态修复实践提供科学支撑。.