摘要
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。
Based on the 1994 infrared aerial photography of Shanghai city, and Geographical information System(GIS) software ARC/INFO, Shanghai Urban Greening information System was established. In this Paper, landscape ecological methods have been introduced to describer and analyze quantitatively the urban greening landscape pattern. Four landscape ecological indices such as landscape diversity, landscape dominance, landscape fragmentation and landscape isolation were chosen to judge the spatial pattern of urban greening landscape. The result showed that urban greening landscape was dominated by small patches thai is lower 500m2, these patches have a great amounts and wide dispersion. From the downtown to the urban fringe, the greening coverage is increased along with the decrease of the population density and building density. The northeast part and southwest part of the city were composed of more larger patches mainly distributed in clusters. At last, the ecological problems of the urban greening landscape of Shanghai were analyzed and corresponding strategies were put forward.
出处
《中国园林》
2000年第1期53-56,共4页
Chinese Landscape Architecture
基金
上海市建委"上海城市绿化信息提取和评价模式研究"!(1995-1998年)的子课题。
