重庆主城区南滨路至铜锣山山脊林地景观的梯度变化分析  

Gradient Analysis of Mountain Ridge Forest Landscape form Nanbin Road of Chongqing Downtown to Tongluo Mountain

作　　者：李阳菊[1] 王海洋[1] 

机构地区：[1]西南大学园艺园林学院,重庆北碚400716

出　　处：《林业调查规划》2011年第4期16-20,24,共6页Forest Inventory and Planning

基　　金：国家林业局2010年度林业公益性行业科研专项(201004064)项目资助

摘　　要：根据重庆山地城市的地域特色,以铜锣山东坡从南岸区南滨路至南山风景区山脊的山地为研究对象,调查分析了面积约750 hm2样区内的景观组成特点,并比较分析了不同人工干扰程度、海拔变化综合影响下的山地城市森林景观组成变化特点.结果表明,从城市建成区到铜锣山山脊,林地景观的组成特点受人为因素影响较大,林地景观的组成特点及空间格局从南滨路至山脊呈明显的梯度变化.林地的绿化覆盖率随海拔梯度的上升逐渐增加,斑块个数和密度却在逐渐减少;景观异质性趋势是:林地多样性指数减小,均匀度指数增加,景观破碎化程度减弱.According to the geographical characteristics of mountain city of Chongqing, and taking scope from south waterfront road to nanshan scenic ridgeline as research object, the landscape composition characteristics has been analyzed in area about 750 hm2 by comparing the degree of human interference and different elevation. The results showed that from the urban built-up area to the mountain ridge, the com- position characteristics of forest landscape influenced by human factors, gradient of forest landscape composition characteristics and spatial pattern were evident from Nanbin road to ridge. The forest coverage rate increased gradually with the elevation gradient increasing, but the number and density of the plaque were decreasing; trend of landscape heterogeneity： diverse woodland index decreasing, the uniformity index increasing, the degree of landscape fragmentation decreasing.

关 键 词：重庆主城区 铜锣山 林地景观 组成特点 梯度变化 

分 类 号：Q149[生物学—生态学]