水土保持通报2012，Vol.32Issue(6)：187-191,5.
兰州市九州台区不同海拔高度人工林群落物种多样性
Biodiversity of Plantation Communities Under Different Altitudes in Jiuzhoutai District of Lanzhou City
摘要
Abstract
The structure characteristics of the communities under manmade forests were surveyed at three different attitudes in Jiuzhoutai District of Lanzhou City based on typical sampling strategy.The characteristics of species diversity were then analyzed based on the survey results.The results indicated that the communities on the midslope(altitude1 760-1 840 m) had the highest species diversity indices(DHJ),the most species,and the best recovery degree.The layers of shrub and herb on the upslope(1 900-1 970 m) showed the lowest richness index,while the layers of shrub and herb on the downslope(1 590-1 730 m) showed the highest.The development of herbaceous layer was apparently better than the layers of shrubs and woods on the north mount according to the richness index,the species composition and biodiversity.The succession of communities was still at their early stages at all the slope positions,as implied by the dominant sunny species under the woody layer.The research on the biodiversity of manmade ecosystem at different altitudes was the extension of eco-afforestation project carried out on the north and south mounts;the findings from this study is of great importance for evaluating the effectiveness of vegetation recovery and reconstruction on the north and south mounts.关键词
兰州市九州台/海拔高度/物种多样性Key words
Jiuzhoutai District of Lanzhou City/different altitude/biodiversity分类
农业科技引用本文复制引用
马维伟,王辉,马小强..兰州市九州台区不同海拔高度人工林群落物种多样性[J].水土保持通报,2012,32(6):187-191,5.基金项目
甘肃省教育厅项目“兰州市南北两山生态恢复评价研究” （）
