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山地丘陵型城市资源丰富,城市内部景观空间异质性明显,是生态效应的重要衡量要素。以四川省绵阳市典型的丘陵型山地城市为例,提取相应的景观指数,评价城市中心区及远近郊区的景观空间分异特征,且对城市景观格局及其生态效应的相关性分析,结果显示:(1)空间格局异质性总体水平较高,但从城市中心区到城郊区差异显著;(2)城市内部景观格局与生态效应之间具有相关性且部分显著。表明城市景观空间异质性是生态效应的重要影响因素。
The mountainous and hilly cities are rich in resources and have obvious spatial heterogeneity within the city, which is an important measure of ecological effects. Taking the typical hilly mountain cities in Mianyang City of Sichuan Province as an example, the corresponding landscape indices were extracted to evaluate the landscape spatial heterogeneity in urban centers and suburbs, and the correlation analysis was made between urban landscape patterns and ecological effects. The results showed that : (1) The overall heterogeneity of spatial pattern is high, but there is significant difference from urban center to suburban areas; (2) There is a correlation between some of the urban landscape patterns and ecological effects and some of them are significant. It shows that urban landscape spatial heterogeneity is an important factor of ecological effect.