北京林业大学学报2011，Vol.33Issue(1)：64-69,6.
晋西黄土区林草复合系统草本植物多样性特征
Herbaceous plant diversity of silvopastoral system in the loess region of western Shanxi Province, northern China.
摘要
Abstract
The silvopastoral system boundary was studied using moving split-window approach in Robinia pseudoacacia forests and grassland system in the loess region of western Shanxi Province, northern China, and the characteristics of herbaceous plant diversity were analyzed by the method of α diversity and β diversity. The results showed that: 1 ) the boundary of R. pseudoacacia forests and grassland system could be discriminated clearly when the window width reached 8,and the influencing range of the silvopastoral system was 8 m,i. e. ,from 4 m inside forestland to 4 m inside grassland,which was consistent with the result of hierarchical cluster for similarity index (SI) of quadrats; 2) α diversity analysis showed that the species diversity in grassland was the highest,and there was the largest unevenness in the boundary of silvopastoral system; 3 )β diversity analysis showed that the changes for forestland plant species were dramatic, indicating that the differentiation of woodland habitats was bigger and the rates of species being replaced were higher in forestland than in grassland.关键词
晋西黄土区/林草复合系统边界/移动窗口法/植物多样性Key words
loess region of western Shanxi Province/ boundary of silvopastoral system/ moving splitwindow approach/ plant species diversity分类
农业科技引用本文复制引用
田晓玲,毕华兴,云雷,马雯静,崔哲伟,靳刚雷..晋西黄土区林草复合系统草本植物多样性特征[J].北京林业大学学报,2011,33(1):64-69,6.基金项目
国家自然科学基金项目(30972419)、"十一五"国家科技支撑计划项目(2006BAD03A0503). （30972419）
