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卧龙巴郎山川滇高山栎灌丛地上生物量及其模型 被引量:21

Aboveground biomass and its models of Quercus aquifolioides thicket community in Balangshan Mountain in Wolong Natural Reserve
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摘要 川滇高山栎广泛分布于横断山地区,属于亚高山硬叶栎林,是中国植被非常特殊的类型。采用标准地法和样方收获法,对卧龙自然保护区5个海拔梯度的川滇高山栎灌丛生物量进行调查。结果表明,用地径(D)、树高(H)估测单株林木器官生物量的适合模型均为指数模型和幂函数模型,且以指数模型为最佳,相关系数为0.941~0.988;而用D2H估测单株林木器官生物量的适合模型均为直线和指数模型,以直线模型为最佳,相关系数为0.982~0.996;川滇高山栎灌丛总生物量为3.3891×104kg.hm-2,各层生物量排序为川滇高山栎层>枯枝落叶层>伴生灌木层>苔藓层>草本层,其生物量占总生物量百分率分别为77.92%、17.64%、2.14%、1.23%和1.07%;川滇高山栎种群平均总生物量为2.6408×104kg.hm-2,各器官生物量大小排序为根>干>枝>叶>皮,其生物量占种群总生物量的百分率分别为31.03%、29.85%、18.54%、18.54%和6.91%。 As a very special vegetation type in China,Quercus aquifolioides,a type of sub-alpine sclerophyllous oak forest,distributes widely in Hengduanshan Mountain in Wolong Natural Reserve.By the methods of field plot investigation and sample tree plot harvesting,the aboveground biomass of 6 Q.aquifolioides communities distributed at the heights from 2 720 m to 3 120 m was studied at Balangshan Mountain in Wolong Nature Reserve.The fitting model with the parameter of diameter(D) or height(H) used to estimate the o...
出处 《生态学杂志》 CAS CSCD 北大核心 2006年第5期487-491,共5页 Chinese Journal of Ecology
基金 国家重点基础研究发展规划项目(2002CB111504) 国家林业局"十五"重点项目(2001010) 中国科学院重要方向项目(KSCX2-SW-115) 国家林业局四川森林生态与资源环境重点实验室开放课题资助。
关键词 川滇高山栎 生物量 海拔梯度 卧龙自然保护区 Quercus aquifolioides aboveground biomass altitude gradient Wolong Natural Reserve.
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