地理学报 ›› 2002, Vol. 57 ›› Issue (1): 67-75.doi: 10.11821/xb200201008

• 沿海地区景观 • 上一篇    下一篇

景观连通性模型及其应用

岳天祥,叶庆华   

  1. 中国科学院地理科学与资源研究所, 资源与环境信息系统国家重点实验室, 北京, 100101
  • 收稿日期:2001-06-04 修回日期:2001-09-26 出版日期:2002-01-25 发布日期:2010-09-06
  • 作者简介:岳天祥 (1963- ), 男, 研究员, 博士生导师, 长期从事资源环境、数学模型与地理信息系统研究。 E-mail: YUE@LREIS.AC.CN

Models for Landscape Connectivity and Their Applications

YUE Tian-xiang, YE Qin-hua   

  1. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS Beijing 100101, China
  • Received:2001-06-04 Revised:2001-09-26 Online:2002-01-25 Published:2010-09-06
  • Supported by:

    Knowledge Innovation Project, CAS, No. kzcx2-308-02; Director Fund for Knowledge Innovation Project of Institute of Geographic Sciences and Natural Resources Recearch, CAS, No. SJ10G-D00-02

摘要:

景观连通性模型可区分为点连通性模型,线连通性模型,网连通性模型和斑块连通性模型。因为点连通性、线连通性和网连通性已有很长的研究历史,相应的连通性模型 (连通度) 已比较成熟, 所以本文的研究焦点是尚不成熟的斑块连通性模型。斑块连通性被定义为斑块中动物迁徙或植物传播运动的平均效率 (或最小化运动距离)。斑块连通性模型在黄河三角洲新生湿地的应用研究结果表明,斑块连通性与人类活动强度和景观多样性负相关。

关键词: 斑块连通性, 数学模型, 人类活动, 景观多样性, 黄河三角洲

Abstract:

The models for landscape connectivity are distinguished into model for line connectivity, one for vertex connectivity, another for network connectivity and still another for patch connectivity. Because the models for line connectivity, for vertex connectivity, and for network connectivity have been long studied and have become ripened, the model for patch connectivity is paid special attention in this paper. The patch connectivity is defined as the average movement efficiency (minimizing movement distance) of animal migrants or plant propagules in patches of a region under consideration. According to this definition, a model for landscape connectivity is mathematically deduced, which applies to GIS data. The application of model for patch connectivity in the new-born wetland of the Yellow River Delta shows that patch connectivity has a negative interrelation with human impact intensity and landscape diversity.

Key words: landscape connectivity, mathematical model, human impact, landscape diversity, Yellow River Delta