论文部分内容阅读
本文运用景观生态学的理论和方法,在遥感和地理信息系统(GIS)技术的支持下,建立上海绿化景观地理信息系统,将不 同大小面积的绿色缀块划分出四种景观类型,并以此为基础分析上海市区的绿化景观格局。上海市区的绿化景观以面积在 500m2以下的小型缀块为主,它们不仅数量多,而且分布广,与城市居民的日常生活关系十分密切。从市中心到城市边 缘,随着人口密度和建筑密度的下降,绿化的数量逐渐增加。在区域分布上,以市区的西南部和东北部分布较为集中,尤 其是前者的规模较大,通过优势度、多样性、破碎度和分离度等四项景观格局指数的分析,上海市区绿化景观格局较佳的 有长宁、徐汇和杨浦等区。
Using the theory and method of landscape ecology, with the support of remote sensing and geographic information system (GIS) technology, this paper establishes the Shanghai greening landscape geographic information system, and divides green patches of different sizes into four landscape types Based on the analysis of urban greening landscape pattern in Shanghai. The green landscapes in Shanghai are dominated by small patches of 500 m2 or less in area. They are not only large in number, but also widely distributed and closely related to the daily life of urban residents. From the center of the city to the edge of the city, the population of greening gradually increases with the decrease of population density and building density. In terms of regional distribution, the distribution in the southwestern and northeastern parts of the urban area is more concentrated, especially the former is larger. Based on the analysis of the four landscape pattern indexes of dominance, diversity, fragmentation and resolution, Green landscape pattern better Changning, Xuhui and Yangpu and other areas.