边缘效应与生态绿道宽度关系研究

A study of Relation between Edge Effect and Ecological Greenways Width

边缘效应是绿道宽度设计的关键因素,对边缘效应特征和作用机理的研究有助于绿道宽度的规划设计。文中研究总结边缘效应的内涵与基本特征,阐述边缘结构多样性、作为过滤层、绿道曲折度和宽度特殊性的特征;分析边缘效应影响绿道宽度的重要因素,主要包括目标物种、相邻景观适宜性以及斑块大小与形状等因素;参考"系统人为切割和移动滑块"理论探讨边缘效应定量评价相关技术和方法,认为边缘效应定量评价需要充分考虑斑块生境生态因子的相关作用。

Edge effect is the key element to the design of greenway width, and the study of edge effect characteristics and its role and mechanism contributes to the width planning and design of greenways. The article summarized the definition and basic characteristics of edge effect, elaborated edge structural diversity, filter layer, tortuosity and the particularity of width. It also analyzed important factors of edge effects which affect the width of greenways, mainly in- cluding target species, suitability of adjacent landscape, and plaque size and shape. System Artificially Cut and Slider Move Theory was used to explore the relevant technology and methods for quantitative evaluation of edge effect. It was thought that ecological factors of patchy habitats should be fully considered during the quantitative evaluation of edge effect.