摘要:土地生态适宜性是指由土地的水文、地理、地形、地质、生物、人文等特征所决定的土地对特定、持续的用途的固有适应性程度。土地生态适宜性分析引导人们按照土地的内在适宜方向进行开发,对保障恰当地利用土地,提高土地的社会价值具有重要的意义。
最初的土地生态分析方法是由麦克哈格提出并运用于纽约斯塔滕岛的土地利用规划中。从麦克哈格至今,土地适宜性分析的基本原理不曾改变,但其应用方法及手段却有了长足的发展。当今的适宜性评价结果是基于GIS地理信息技术进行空间分析,最终得出土地生态适宜性模型。
本文主要对土地生态适宜性分析与评价方法进行详细的探索,剖析其中的景观生态学、城市地理学、生物学等多学科的应用原理以及基于GIS技术的城市空间分析方法;在此基础上详细介绍了在京津两地城市生态规划中的实践应用;最后对于土地生态适宜性分析与评价结果如何指导城镇发展与空间布局、生态安全格局的构建、绿色空间规划等工作,进行初步的探讨。
关键词:生态规划、生态适宜性分析与评价、城镇空间发展布局、生态安全格局、绿色空间规划
ABSTRACT:Land suitability analysis refers to the ecological appropriateness of the land hydrology, geography, topography, geology, biology, and cultural characteristics of the land to determine specific and sustained use of the inherent degree of adaptability. Land suitability analysis guides people in the appropriate direction in accordance with the land development to the protection of proper use of land to enhance the social value of the land is of great significance.
The initial land ecological analysis methods introduced and applied by McHarg in the New York Staten Island land-use planning. So far from McHarg, land suitability analysis did not change the basic tenets, however, the application of methods and means of their have been got considerable development. Today, the results of the evaluation of the appropriateness of geographic information technologies is based on GIS spatial analysis, and eventually came to the land of ecological appropriateness of models.
In this paper, the major land suitability analysis and evaluation of ecological methods is detailed explored, analyzing the landscape ecology, urban geography, biology, multidisciplinary principles and the application of technology in space based on GIS analytical methods, and used on the basis of details in the two cities around the practice of ecological planning applications. Finally for land suitability analysis and evaluation of the ecological outcome guiding urban development and space distribution, ecological security of a pattern, green space planning etc. is initially explored.
Key words: Ecological planning, Ecological suitability analysis and evaluation, Development of urban space, Ecological security pattern, Green space planning