| 中国亚热带地区不同发育阶段杉木林生物量、凋落物及养分流 |
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| 引用本文： | 马祥庆,刘春江,刘爱琴.中国亚热带地区不同发育阶段杉木林生物量、凋落物及养分流[J].林业研究,2002,13(3):165-170. |
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| 作者姓名： | 马祥庆 刘春江 刘爱琴 |
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| 作者单位： | 中国福建农林大学杉木研究中心，德国Kiel大学生态中，芬兰赫尔辛基大学森林生态系，芬兰赫尔辛基大学森林生态系，中国福建农林大学杉木研究中心 南平353001，Germany，Helsinki，Finland，Helsinki，Finland，南平353001 |
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| 基金项目： | This research was sponsored by National Natural Science Foundation of China (Grant No. 39630240 and 3000132). |
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| 摘 要： | 杉木生长快、产量高、材质好,是中国亚热带地区最重要的造林树种之一,在中国南方人工林经营中占有重要地位。对8、14和24年生杉木人工林生物量、凋落物及其养分流进行的研究结果表明:杉木人工林具有很高的生物生产力和50%-70%的树干生物量积累比例。杉木是低养分归还的针叶树种,凋落量少,而且针叶凋落前养分发生一定程度的转移,凋落物养分含量低,短轮伐期连栽收获制度造成的养分损失是导致杉木人工林地力衰退的原因之一。图1表7参22。
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| 关 键 词： | 杉木 生物量 生产力 凋落物 养分流 |
| 收稿时间： | 30 April 2002 |
Biomass, litterfall and the nutrient fluxes in Chinese fir stands of different age in subtropical China |
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| Ma Xiang-qing,Liu Chun-jiang,Ilvesniemi Hannu,Carl J. Westman,Liu Ai-qin.Biomass, litterfall and the nutrient fluxes in Chinese fir stands of different age in subtropical China[J].Journal of Forestry Research,2002,13(3):165-170. |
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| Authors: | Ma Xiang-qing Liu Chun-jiang Ilvesniemi Hannu Carl J Westman Liu Ai-qin |
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| Institution: | (1) Chinese Fir Research Center, Fujian Agriculture and Forestry University, 353001 Nanping, P. R. China;(2) Ecology Center, University of Kiel, Schauenburgestr, 112, DE-24118 Kiel, Germany;(3) Department of Forest Ecology, University of Helsinki, POB 24, 00014, Finland |
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| Abstract: | Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.), a fast-growing, ever-green conifer tree with high yield and excellent quality, is the most important tree species of timber plantations in subtropical China. We investigated the characteristics of biomass, litterfall and nutrient fluxes in the 8, 14 and 24 year-old stands, representing the young, middle-aged and mature stands. The results showed that Chinese fir plantations in central Fujian province had high productivity, and the proportion of stem mass in total biomass was between 50%-70%. Chinese fir was low nutrient-return tree species with litterfall. Nutrient withdrawal from senescing needles was a strong age-dependence for nitrogen, phosphorous and potassium in Chinese fir. With a management system of such short-rotation and continuously pure-crop planting, harvesting timber can lead to great nutrient loss, which may be one of the causes for site degradation. |
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| Keywords: | Chinese fir Biomass Productivity Litter fall Nutrient flux |
| 本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录！ |
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