摘要
城市扩张对生态环境的影响主要是由土地覆盖类型变化和扩张空间模式引起的。基于遥感的土地覆盖类型变化对生态环境的影响已实现定量研究,而空间模式的影响尚处于定性研究阶段。不能进行定量研究的原因:一是空间模式引起的环境变化信息较弱,二是空间模式难以定量描述。要实现空间模式对生态环境影响的定量研究,需要解决以下关键问题:①空间模式定量描述;②非模式因素的改正;③空间模式与生态环境变量的数学模型。
The Influence of urban expanding on eco environment is mainly caused by the change of land coverage pattern and expanding spatial model. The influence of land coverage pattern change on eco environment has already been studied quantitatively with remote sensing while the influence of spatial model is still in qualitative research. The reasons of being unable to carry quantitative research are as following： the environment change information caused by spatial model is weak, and spatial model is hard to be quantitatively described. In order to realize quantitative research of the influence of spatial model on eco environment, the following issues should be settled. ① quantitative description of spatial model, ② correction of non model factor, ③ Mathematic pattern of spatial model and eco environment variable.
出处
《矿产与地质》
2006年第6期659-663,共5页
Mineral Resources and Geology
基金
湖南省自然科学基金资助项目(04JJ30046)
关键词
遥感
城市扩张空间模式
综述
定量研究
土地覆盖类型
数字模型
城市生态环境
remote sensing, spatial model of urban expanding, review, quantitative research, land coverage pattern, digital pattern, urban eco environment
