地理学报 ›› 2014, Vol. 69 ›› Issue (11): 1673-1682.doi: 10.11821/dlxb201411008

• • 上一篇    下一篇

基于DLS模型的城市土地政策生态效应研究——以深圳市为例

吴健生1,2(), 冯喆2(), 高阳3,4, 彭建2   

  1. 1. 北京大学城市规划与设计学院,城市人居环境科学与技术重点实验室, 广东深圳 518055
    2. 北京大学城市与环境学院, 北京 100871
    3. 中国农业大学资源与环境学院土地资源管理系, 北京 100193
    4. 国土资源部农用地质量与监控重点实验室, 北京 100193
  • 收稿日期:2013-10-16 修回日期:2014-09-10 出版日期:2014-11-20 发布日期:2014-11-20
  • 作者简介:

    作者简介:吴健生 (1965-),男,博士,教授. 主要从事遥感与GIS、景观生态学与土地利用规划研究。E-mail: wujs@szpku.edu.cn

  • 基金资助:
    国家自然科学基金项目 (41330747)

Research on ecological effects of urban land policy based on DLS model: A case study on Shenzhen City

Jiansheng WU1,2(), Zhe FENG2(), Yang GAO3,4, Jian PENG2   

  1. 1. Key Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, Guangdong, China
    2. College of Urban and Environment Sciences, Peking University, Beijing 100871, China
    3. Department of Land Resources Management, China Agricultural University, Beijing 100193, China
    4. Key Laboratory of Agricultural Land Qualify, Monitoring and Control, Ministry of Land and Resources, Beijing 100193, China
  • Received:2013-10-16 Revised:2014-09-10 Online:2014-11-20 Published:2014-11-20
  • Supported by:
    National Natural Science Foundation of China, No.41330747

摘要:

以快速城市化典型地区——深圳市为例,结合土地利用变化与生态质量评价模型对城市土地利用的数量控制和空间控制两类生态政策的生态效应进行了评估。结果表明:(1) 在城市化发展过程中,由于城市用地扩张,城市生境面临破碎化增加、连通性降低、生境质量下降等生态风险,生态政策的实施可以在一定程度上缓解上述生态风险。(2) 数量控制的生态政策可以提高土地利用的集约性,遏制景观破碎化和生境质量下降趋势和增强景观连通性,但可能造成城市开发强度上升,对城市用地周边生态环境产生影响。(3) 空间控制的生态政策可以维护生态用地格局,遏制景观破碎化和生境质量下降趋势,但在维护景观连通性方面作用有限。(4) 两种政策同时使用会产生协同效应,其效果优于单独使用两种政策。

关键词: DLS模型, 土地政策, 生态效应, 深圳

Abstract:

Urban land ecological policy is an important management tool to enhance ecological construction and urban sustainable development. In this paper, Shenzhen was chosen as a typical case of rapid urbanization areas. A combination of land-use change and ecological effect quality models was used to evaluate the effects of two types of urban land-use policies, scale-control policy and space-control policy. The results showed that: (1) During the urbanization process, habitat fragmentation, connectivity decreasing and degradation are resources of ecological risks, which can be alleviated by the implementation of ecological policy. (2) Scale-control policy can enhance landscape connectivity and curb the trends of landscape fragmentation and habitat degradation, but it may result in an increase of the intensity of construction. (3) Space-control policy can maintain ecological land pattern, and curb the trends of landscape fragmentation and habitat quality decline, but it can play a limited role in maintaining the landscape connectivity. (4) The synergistic effect of simultaneously implementing the two policies results in better effects than separately implementing them.

Key words: DLS model, land use policy, ecological effect, Shenzhen