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Position: Home > Articles > The Analysis of Different Working-group Low-quality and Benefit Forest's Diversity Research of Soil and Water Conservation 2007,14 (2) 221-223

不同经营类型低效林分物种多样性分析

作  者：
唐丽霞;喻理飞;綦山丁;袁礼
单  位：
贵州省林业推广总站;贵州大学林学院;北京林业大学水土保持学院;贵州省习水森林公司
关键词：
多样性指数;经营类型;低效林分
摘  要：
贵州省天然林保护工程中低效林面积所占比重很大,低效林改造的效果好坏,直接影响到天然林保护工程质量。对封改、封抚、封造3种经营类型低效林复位调查及多样性指数分析表明:乔木层物种、株数都有大幅度的增加,林分结构趋向均匀,优势种仍是杉木、檫木,但很多目的树种进入到了乔木层。灌木层物种减少,数量减少,优势度下降,均匀度提高,杂灌减少,目的树种数量和物种增加,整个林分结构向针阔混交林方向发展。
译  名：
The Analysis of Different Working-group Low-quality and Benefit Forest's Diversity
作  者：
TANG Li-xia1,2,YU Li-fei2,QI Shan-ding3,YUAN Li4 (1.College of Soil and Water Coservation,Beijing Forestry University,Beijing 100083,China;2.College of Forestry,Guizhou University,Guiyang 550025,China;3.Guizhou Province Forestry Science and Technology Extension Station,Guiyang 550000;4.Guizhou Province Xishui Forestry Company,Xishui 564600,China)
关键词：
diversity index;working group;low-quality and benefit forest
摘  要：
There is a large proportion of low-quality and benefit forest in Project of Natural Forest Resource Projection in Guizhou province,the improved effect of low-quality and benefit forest directly affects the quality of Project of Natural Forest Resource Projection.The growth of three working-groups of closed tackling and reconstruct,closed tackling and thinning,closed tackling and forestation low-quality and benefit forest were investigated and the diversity index was analyzed.The result showed: the number of species and individual were increased,the trend of forest structure is more equality,dominant species are Cunninghmia lancelata,Sassafras tsumu,but large numbers of target species had grown into the layer of arbor.The species and number of shrub reduced,dominance descended,and miscellaneous shrub lessened,target species increased,the whole forest structure are changing to mixed forests.

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