Litter Dynamics of Three Subalpine Forests in Western Sichuan

查看全文 作　　者：YANG Wan-[1,2]Qin;WANG Kai-[2,3]Yun;S. [3]KELLOMAKI;GONG He-[2]De

机构地区：[1]Faculty of Forestry, Sichuan Agricultural University, Ya'an 625015 (China);[2]Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610641 (China);[3]Faculty of Forestry, University of Joensuu, P. O. Box 111, FIN-80101 (Finland)

出　　处：《Pedosphere》索引2005年第15卷第5期,共7页

基　　金：the National Natural Science Foundation of China (Nos. 30471378, 90202010 and 30211130504),and the Program of 100 Distinguished Young Scientists of the Chinese Academy of Sciences. 摘　　要：Litter production, components and dynamics were investigated and forest floor litter was quantified throughout awhole year in three subalpine forests, dominated by tree species of spruce (SF), fir (FF) and birch (BF), in WesternSichuan, China, in order to understand the key factors that influenced litter production and dynamics. Litterfall in thethree forests consisted mainly of leaves, woody litter, reproductive organs and moss. Contribution of leaf litter to thetotal litterfall was significantly (P < 0.05) greater than that of woody litter, reproductive organs or moss. Regardlessof the stands, litterfall exhibited a marked monthly variation with the maximum litterfall peaks occurring in October,with smaller peaks occurring in February for SF and FF, and May for BF. The analysis indicated that tree species,stand density, leaf area index (LAI), stand basal area and stand age were the key factors determining litter production.Meanwhile tree species and phenology controlled the litter dynamics, with wind and snow modifying the litter componentsand dynamics. 关键词：四川亚高山带森林土壤冷杉白桦树

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Litter Dynamics of Three Subalpine Forests in Western Sichuan

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