基于GIS和盒计数法的景观类型分形研究

The Fractal Research on Landscape Types Based on GIS and the Box-counting Method

为探索景观分类研究的技术和方法,本研究以福建省永泰县为研究区,建立了突出人为干扰强度的三级景观分类系统,并在RS和GIS技术支持下完成数字景观类型图编制;继而在ArcGIS平台上采用盒计数法对该区域的景观要素边界征兆信息进行分形研究.研究结果表明,各景观类型边界形态的复杂性(分维值D)构成排序:水域景观>自然景观>农业景观>半自然景观>廊道景观>人工建筑景观,此排序恰与人为干扰强度呈负相关;人类活动对景观过程及景观格局的影响在不同的景观类型上产生了诸多不同的响应.

In order to explore the techniques and methods of landscape classification, this thesis, taking Yongtai county of Fujian province as a study area, built up a classification system with three grades stressing the intensity of human disturbance, compiled a landscape type map for the study area supported with RS ＆ GIS technology and used the Box-counting method to research the omen information of landscape element boundary on the ArcGIS platform. The results indicated that the landscape types can be arranged in a sequence according to the complexity of the boundary formation （ the fractal dimension D ） as follows： water landscape 〉 nature landscape 〉 agriculture landscape 〉 half-nature landscape 〉 corridor landscape 〉 artificial building landscape. The sequence was just negative to the one related to the intensity of human disturbance, and over different landscape types, the responds to the impacts of human activities upon landscape process and pattern were quite diversified.