西北林学院学报2012，Vol.27Issue(5)：26-31,216,7.DOI:10.3969/j.issn.1001-7461.2012.05.06
珠江上游融江流域森林景观格局现状及分析
An Analysis on Landscape Patterns of Rongjiang Watershed in the Pearl River Upstream
摘要
Abstract
Based on the data from forest resources survey in Rongjiang watershed of the Pearl River upstream, by using the landscape ecological theory and the method of landscape index, some characteristics of class I and class II landscape patterns were analyzed under the support of ArcGIS 9. 3 and Fragstats3. 3 softwares. Indicators to evaluate landscape patterns included total area, number of patch, class area, mean patch size, Shannon's diversity index, landscape dominance index, Shannon's evenness index and some other indices. The results showed that the forest landscape which consisted of forest lands and scrublands accounted for 74. 15% of the total area, which ensured the ecological functions of the watershed. Area ratio of China fir in the forest landscape was about 49%, while the indices of patch density and patch edge density were also higher, which was negative to the development of the landscape and the maintenance of the stability of forest structure and function. It was recommended to adjust the tree structure from pure Cun-ninghamia lanceolata forest to coniferous forest and the mixed coniferous and broad leaved forest.关键词
森林景观/景观格局/景观优化/融江流域Key words
forest landscape/ landscape pattern/ landscape optimization/ Rongjiang watershed分类
农业科技引用本文复制引用
黎良财,杨胜天,李耀强,邓利,肖万娟..珠江上游融江流域森林景观格局现状及分析[J].西北林学院学报,2012,27(5):26-31,216,7.基金项目
柳州市科技基金(2009021603). （2009021603）
