基于RS和GIS的海口市绿地景观空间结构分析

在GIS技术支持下,运用景观生态学的原理和方法,选取斑块类型水平、景观水平的指数和廊道密度指数对海口市城区绿地的空间结构进行了研究和分析。结果表明研究区绿地景观结构不够合理,附属绿地面积和数量比重最高,缺乏公共绿地和廊道绿地;绿地景观类型较丰富,但空间布局不均衡,绿地斑块破碎度高,绿地廊道密度指数低,造成绿地系统结构失调,不能形成完整的绿色空间网络。针对海口城区绿地景观空间结构存在的问题,提出了优化建议。

Spatial Structure of Urban Greenbelt Landscape in Haikou City Based on RS and GIS

With the help of GIS technology, patch class, landscape indices and greenbelt corridor density index were selected to analyze the spatial structure of urban greenbelt landscape in Haikou city, based on the principles and methods of landscape ecology. Results show that the structure of green space landscape in study area is not reasonable, the appertain greenbelt occupy utterly predominance, public green space and corridor green space are obviously insufficient; the distribution of greenbelt was uneven, fragmentation was higher, greenbelt corridor density index was low, leading to the imbalance of green space system structure, and can't form intact green space network. Some proposals for the optimization are offered aiming at these problems of the spatial structure of urban greenbelt landscape in Haikou city.