【摘要】 在云阳县人工柏木纯林的物种多样性调查研究中发现,其群落环境条件较差,物种较少,多样性指数低,柏木叶蜂虫害严重,极需加强管理和改造.8个样地800 m2的面积内有维管植物31科52属54种.Simpson指数和Shannon-Wiener指数都很低,特别是乔木层,只有0.113和0.265,指数从高到低依次为灌木、草木、乔木,并提出了经营管理对策.更多还原

【Abstract】 Based on forest inventory normal scientific sampling of vegetation,the authors investigated the species diversity of Cupressus funebris forest planted in Yunyang county.The results of the study are as follows: poor environmental conditions of the community,sparse species low index of diversity,serious damage of Cupressus funebris leaves by bees and insects,an urgent need for reinforcing management and reconstruction.In the 8 sample areas of 800 m2,there are 31 families,52 genera and 54 species of vascular plants.Simpson index and Shannon-Wiener index are very low,only 0.113 and 0.265 for the arbor layer,respectively shrub layer of the forest has the largest Simpson index and Shannon-wiener index than undersory herb layer,tree layer of the forest has the lowest values of Simpson,index and Shannon-wiener index.Four strategies for management of such a kind forest are proposed: ① to reinforce forest investigation,and monitoring and pest control;② to prohibit disturbance so as to increase the species diversity and optimize the community structures;③ to change Cupressus funebris forest into mixed broadleaved-coniferous forest;and ④ to train professionalism forest management.更多还原