资源枯竭型城市生态保护修复关键区识别研究:以江西省大余县为例

doi:10.19741/j.issn.1673-4831.2020.0872

摘要/Abstract

摘要： 依据"生态安全格局-关键区-保护修复策略"思路，以江西省大余县为研究区，识别生态源地、生态"夹点"、障碍点、断裂点和破碎生态空间等关键区数量及空间分布，提出生态保护修复类型区及其相应措施。研究结果表明：（1）大余县生态源地共147.36 km²，涉及林地、水域和草地，生态廊道69条，呈现出两横五纵的空间特征。研究识别生态"夹点"12处，生态障碍点13处，生态断裂点23处，破碎生态空间57.46 km²。（2）生态保护修复类型区包括矿山修复区、山水治理区、农田整治区、农村建设用地整治区和交通用地优化区，建议分别采取矿山复绿、山体治理和水污染防控、农用地整理和耕地污染防控、居民点整合和农村道路复垦、建立野生动物通道和沿线植被恢复等策略。（3）基于生态安全格局构建，从区域整体视角识别生态保护修复关键区，依据关键区所覆盖土地利用类型划分生态保护修复类型区，并以此为基础提出系统性的保护修复策略。研究结果有助于资源枯竭型城市生态系统从关键点、线、面的修复工程向山水林田湖草系统修复推进。

关键词: 资源枯竭型城市, 生态保护修复, 生态源地, 关键区, 大余县

Abstract: Following the research route of "ecological security pattern-key area-protection and restoration strategy", Dayu County, one of the resource-exhausted counties in China, was taken as the study area. The purposes of the study were to recognize the number and spatial position of several types of key points and areas for ecological protection and restoration, such as ecological source areas, ecological pinch points, barrier points, break points and fragmented ecological spaces, so as to classify the key areas and points and provide corresponding proposals for ecological protection and restoration. The results show that there are 147.36 km² of ecological source areas, covered by forest, water and pasture, 69 ecological corridors with spatial feature of "two horizontal and five vertical", 12 ecological pinch points, 13 ecological barrier points, 23 ecological break points and 57.46 km² of fragmented ecological spaces. The key areas could be divided into 5 types of districts, followed with their respective ecological protection and restoration proposals:For the mine restoration district, afforestation should be implemented; For the mountain and water source managing district, the ruined mountains should be restored and the water pollution should be controlled; For the farmland district, consolidation programs and pollution prevention measures should be carried out; For the rural settlement regulation district, some of the settlements should be integrated and the unused rural roads should be reclaimed; For the traffic land optimization district, wildlife corridors should be established and the vegetation should be restored along the traffic roads. The key areas for ecological protection and restoration could be exposed entirely from the view of the establishment of ecological security pattern. The land use type of key areas is a significant factor for classification and strategy development of the protection and restoration districts. It is beneficial for the transition from specific restoration project to systematic restoration in resource-exhausted counties based on study from the integral view of regional ecological security pattern.

Key words: resource-exhausted county, ecological protection and restoration, ecological source, key area, Dayu County

中图分类号:

张晓平, 胡紫红, 危小建, 黄耀文. 资源枯竭型城市生态保护修复关键区识别研究:以江西省大余县为例[J]. 生态与农村环境学报, 2021, 37(8): 1031-1040.

ZHANG Xiao-ping, HU Zi-hong, WEI Xiao-jian, HUANG Yao-wen. Study on Identification of Key Areas for Ecological Protection and Restoration in Resource-exhausted Region: Take Dayu County, Jiangxi as an Example[J]. Journal of Ecology and Rural Environment, 2021, 37(8): 1031-1040.

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