| 川西亚高山三个森林群落的凋落物动态 |
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| 引用本文： | YANG Wan-Qin,WANG Kai-Yun,S. KELLOMAKI,GONG He-De. 川西亚高山三个森林群落的凋落物动态[J]. 土壤圈, 2005, 15(5): 653-659 |
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| 作者姓名： | YANG Wan-Qin WANG Kai-Yun S. KELLOMAKI GONG He-De |
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| 作者单位： | [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） |
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| 基金项目： | Project supported by 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. |
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| 摘 要： | Litter production, components and dynamics were investigated and forest floor litter was quantified throughout a whole year in three subalpine forests, dominated by tree species of spruce （SF）, fir （FF） and birch （BF）, in Western Sichuan, China, in order to understand the key factors that influenced litter production and dynamics. Litterfall in the three forests consisted mainly of leaves, woody litter, reproductive organs and moss. Contribution of leaf litter to the total litterfall was significantly （P 〈 0.05） greater than that of woody litter, reproductive organs or moss. Regardless of 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 components and dynamics.
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| 关 键 词： | 四川 亚高山带 森林 土壤 冷杉 白桦树 |
| 收稿时间： | 2005-04-12 |
| 修稿时间： | 2005-07-15 |
Litter dynamics of three subalpine forests in Western Sichuan |
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| YANG;Wan-Qin;WANG;Kai-Yun;S.;KELLOMAKI;GONG;He-De. Litter dynamics of three subalpine forests in Western Sichuan[J]. Pedosphere, 2005, 15(5): 653-659 |
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| Authors: | YANG Wan-Qin WANG Kai-Yun S. KELLOMAKI GONG He-De |
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| Affiliation: | Faculty of Forestry, Sichuan Agricultural University, Ya'an 625014 (China). E-mail: yangwq@cib.ac.cn;Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041 (China);Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041 (China);Faculty of Forestry, University of Joensuu, P. O. Box 111, FIN-80101 (Finland);Faculty of Forestry, University of Joensuu, P. O. Box 111, FIN-80101 (Finland);Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041 (China) |
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| Abstract: | Litter production, components and dynamics were investigated and forest floor litter was quantified throughout a whole year in three subalpine forests, dominated by tree species of spruce (SF), fir (FF) and birch (BF), in Western Sichuan, China, in order to understand the key factors that influenced litter production and dynamics. Litterfall in the three forests consisted mainly of leaves, woody litter, reproductive organs and moss. Contribution of leaf litter to the total litterfall was significantly (P < 0.05) greater than that of woody litter, reproductive organs or moss. Regardless of 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 components and dynamics. |
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| Keywords: | litter dynamics litter stock litter production subalpine forests |
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