地理研究 ›› 2017, Vol. 36 ›› Issue (3): 441-452.doi: 10.11821/dlyj201703004

• 研究论文 • 上一篇    下一篇

基于生态安全格局的关中城市群生态空间结构优化布局

杨天荣1,2(), 匡文慧1(), 刘卫东3, 刘爱琳1,2, 潘涛2,4   

  1. 1. 中国科学院地理科学与资源研究所,陆地表层格局与模拟重点实验室,北京 100101
    2. 中国科学院大学,北京 100049
    3. 中国科学院地理科学与资源研究所,区域可持续发展分析与模拟重点实验室,北京 100101
    4. 中国科学院新疆生态与地理研究所,荒漠与绿洲生态国家重点实验室,乌鲁木齐 830011
  • 收稿日期:2016-08-22 修回日期:2017-12-23 出版日期:2017-03-20 发布日期:2017-03-22
  • 作者简介:

    作者简介:杨天荣(1991- ),男,甘肃白银人,硕士,研究方向为城市土地利用与生态环境。E-mail:yangtr.14s@igsnrr.ac.cn

  • 基金资助:
    国家自然科学基金项目(41530751)

Optimizing the layout of eco-spatial structure in Guanzhong urban agglomeration based on the ecological security pattern

Tianrong YANG1,2(), Wenhui KUANG1(), Weidong LIU3, Ailin LIU1,2, Tao PAN2,4   

  1. 1. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Key Laboratory of Regional Sustainable Development Modeling, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    4. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China
  • Received:2016-08-22 Revised:2017-12-23 Online:2017-03-20 Published:2017-03-22

摘要:

构建区域生态安全格局、优化城市群生态空间结构,有利于促进社会经济与生态环境的和谐发展。以中国西部关中城市群为例,在RS与GIS技术支持下,通过生态服务重要性与生态环境敏感性评价识别生态源地,并基于最小累积阻力模型构建区域生态安全格局,进而开展生态空间结构优化布局研究。结果表明:① 生态保护源地面积共26191.19 km2,占全区的47.51%;② 除生态源地外,低、中、高水平安全格局区域分别占全区的39.14%、9.86%和3.49%;③ 源间廊道多呈南北走向且连通成网状的程度较低;④ 提出构建以“四带、三区、七组团、十廊道、多中心”为核心的“绿心廊道组团网络式”布局体系,优化关中城市群生态空间结构。本研究可为区域生态保护与城市群可持续发展提供参考与借鉴。

关键词: 城市群生态空间结构, 生态安全格局, 绿心廊道组团网络化模式, 关中城市群

Abstract:

Constructing regional ecological security pattern, as well as optimizing the eco-spatial structure in urban agglomerations, will promote the harmonious development of the social economy and ecological environment. Based on RS and GIS technology, the study takes the Guanzhong urban agglomeration in western China as an example to identify the ecological source area according to the importance of ecosystem services and eco-environment sensitivity evaluation. We constructed the regional ecological security pattern by using the minimum cumulative resistance model, and optimized the layout of eco-spatial structure in the region. Results showed that: (1) the ecological source area was 26191.19 km2, accounting for 47.51% of the region's area; (2) except the ecological source region, the areas of low, moderate and high level ecological lands accounted for 39.14%, 9.86% and 3.49%, respectively; (3) the corridors between the ecological source region lie mostly in south-north directions and have low connectivity; (4) we aimed to construct the system of "the mode of corridor group network with green cores" with "four belts, three regions, seven groups, ten corridors, and multi centers", so as to optimize the optimization layout. This study provides a reference case for regional ecological protection and sustainable development of urban agglomerations.

Key words: eco-spatial structure in urban agglomeration, ecological security pattern, the mode of corridor group network with green cores, Guanzhong urban agglomeration