| 武夷山六种杉木伴生树种落叶养分归还的研究 |
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| 引用本文： | 许新健,陈金耀.武夷山六种杉木伴生树种落叶养分归还的研究[J].福建林学院学报,1995,15(3):213-217. |
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| 作者姓名： | 许新健 陈金耀 |
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| 作者单位： | 福建林学院杉木研究所，南京林业大学，福建省建阳市林业委员会 |
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| 摘 要： | 本文在福建省几个自然保护区天然杉木混交林群落调查的基础上，对武夷山天然杉木混交林中毛竹、木荷等六种主要杉木伴生树种落叶养分归还的研究结果表明，各伴生树种落叶分解其养分归还量主要取决于落叶量的大小，受养分浓度及分解速率的影响较小．在混交林中，甜储、丝栗栲的落叶量大，分解速度快，具有较强的养分平衡能力，落叶分解的养分归还量分别为３４２．９６４ｋｇ／（ｈｍ２·ａ）和２７４．３７２ｋｇ／（ｈｍ２·ａ）．苦槠和毛竹的养分归还量较低，分别为１０２．８１４ｋｇ／（ｈｍ２·ａ）和１０７．２２４ｋｇ／（ｈｍ２·ａ）．
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| 关 键 词： | 杉木伴生树种 落叶量 分解速率 养分归还量 |
Studies on the Litter Nutrient Returns of Six Major Chinese Fir Associated Species in Wuyi Moutains |
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| Xu Xinjian, Cheng Jingyao, Yu Xintuo.Studies on the Litter Nutrient Returns of Six Major Chinese Fir Associated Species in Wuyi Moutains[J].Journal of Fujian College of Forestry,1995,15(3):213-217. |
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| Authors: | Xu Xinjian Cheng Jingyao Yu Xintuo |
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| Abstract: | After extensively surveying the natural Chinese fir mixed forests in several mature reserves in our province, further comparative studies have been made on nutrient returns of six major Chinese fir associated species in Wuyi Moutains. The results showed that the amount of litter nutrient returns of different species were mainly affected by the litter amount, secondary by the discomposition rates and nutrient contents. Castanopsis eyrei and Castanopsis fargesii were of higher litter amount and discomposition rates, with annual litter nutrient returns at 342. 964kg/(hm2. a) and 274. 372kg/(hm2. a) respectively, therefore, both had high ability in keeping nutrient balance in the mixed stands. Castanopsis sclerophylls and Phyllostachys pubescens were relatively lower in nutrient returns of litter, with annual nutrient returns at 102. 814kg/(hm2.a) and 107. 224kg/(hm2. a) respectively. |
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| Keywords: | Chinese fir associated species litter amount discomposition rate nutrient returns |
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