云南省个旧市城市森林景观格局的分析与评价

Analysis and Evaluation on Forest Landscape Patterns of Gejiu City of Yunnan Province

采用景观指数法对个旧市城市森林5种景观类型的格局进行了分析。所使用的景观指数包括斑块特征指标、景观多样性指标、景观空间关系指标等。结果表明:个旧市城市的森林景观多样性指数较低,各景观类型的优势度有较大差异,其整体上,异质性较差。而各景观类型拥有的斑块数分布很不均匀,从面积和斑块数来看,以公共绿地的斑块数最多,面积最大,为个旧市城市森林的主导景观。公共绿地和专用绿地较近于均匀分布格局,生产绿地和风景园林接近于随机分布格局。

The forest landscape patterns of Gejiu city of Yunnan province were analyzed by using the landscape index method. The indexes used include patch characteristics index, landscape diversity index and land spatial relationship etc. The results of analysis indicated that the landscape diversity index of Gejiu city is low, the dominance of different landscape types vary a lot, and the heterogeneity is low. The number of patches of different landscape type is not even, considering the area and number of patches, with has the most number of patches and the biggest landscape area, public green space is the dominant landscape. Both public green space and specified green space are close to even distribution. The patterns of productive plantation area and garden are close to random distribution.