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应用生态学报 ›› 2022, Vol. 33 ›› Issue (1): 149-158.doi: 10.13287/j.1001-9332.202112.024

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基于生态系统服务供需平衡的宁夏固原生态修复分区与优化策略

岳文泽*, 侯丽, 夏皓轩, 韦静娴, 卢有朋   

  1. 浙江大学土地管理系, 杭州 310058
  • 收稿日期:2021-06-01 接受日期:2021-08-06 出版日期:2022-01-15 发布日期:2022-07-15
  • 通讯作者: * E-mail: wzyue@zju.edu.cn
  • 作者简介:岳文泽, 男, 1977年生, 教授。主要从事国土空间治理研究。E-mail: wzyue@zju.edu.cn
  • 基金资助:
    国家社会科学基金重大项目(21ZDA064)

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

YUE Wen-ze*, HOU Li, XIA Hao-xuan, WEI Jing-xian, LU You-peng   

  1. Department of Land Management, Zhejiang University, Hangzhou 310058, China
  • Received:2021-06-01 Accepted:2021-08-06 Online:2022-01-15 Published:2022-07-15

摘要: 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。

关键词: 生态系统服务, 供需关系, 生态修复分区, 优化策略, 固原市

Abstract: Scientifically identifying the territorially ecological restoration zoning is a vital prerequisite for implementing ecological restoration projects and enhancing environmental quality. Based on remote sensing data, we syste-matically assessed supply and demand for ecosystem service and their relationship in Guyuan City, China by using the InVEST model, coordination degree model, and spatial autocorrelation analysis. We carried out territorially ecological restoration zoning by coupling the ecosystem service supply and demand. Furthermore, the corresponding optimization strategies were put forward according to the regional characteristics of natural resources and socio-economic development. The results showed that the areas with high water yield, carbon storage, soil conservation and habitat quality were mainly located in the southern part of Guyuan City. The areas with high population density, economic development level and high ecological demand were mainly located in the central urban area and the location towns of the county government. The spatial mismatch of supply and demand for ecosystem services in Guyuan City was dominant, as indicated by the fact that the areas with high ecological supply having low ecological demand and low ecological supply having high ecological demand. The average coordination index was 0.5, indicating that the relationship between ecological supply and ecological demand was basically coordinated. Based on the diffe-rences between supply and demand of ecosystem services and regional natural geographical pattern, the administrative township units in Guyuan could be classified into six ecological restoration zonings: key ecological restoration area, potential ecological restoration area, ecological economic reconstruction area, characteristic agricultural development area, ecological core protection area, and ecological industry construction area. Different management strategies were proposed to provide scientific support for ecological restoration.

Key words: ecosystem service, supply and demand relationship, ecological restoration zoning, optimization strategy, Guyuan City