| 两类森林凋落物及其分解作用的研究 |
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| 引用本文： | 梁宏温.两类森林凋落物及其分解作用的研究[J].广西农业生物科学,1991(4). |
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| 作者姓名： | 梁宏温 |
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| 作者单位： | 广西农学院林学分院林学系 |
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| 摘 要： | 根据1984～1989年的定位观测,广西岑溪县七坪林场常绿阔叶林的凋落物量平均为8.062t/ha·a,N,P,K,Ca,Mg,S,Mn,Cu,Zn 9种营养元素的归还量平均为209.47kg/ha·a,分别比杉木林的高1.82倍和2.08倍。常绿阔叶林凋落物各组分的平均分解速率(g/g·a)为:叶1.0842,枝0.6502,果0.8871;而杉木林的分别为0.6084,0.3795和0.5255。表明常绿阔叶林在提高林地土壤肥力方面大于杉木林。
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| 关 键 词： | 常绿阔叶林 针叶林 杉木 凋落物 植物矿质营养 养分循环 归还 |
A STUDY ON THE LITTER-FALL AND ITS DECOMPOSITION IN TWO FOREST TYPES |
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| Liang Hongwen.A STUDY ON THE LITTER-FALL AND ITS DECOMPOSITION IN TWO FOREST TYPES[J].Journal of Guangxi Agricultural and Biological Science,1991(4). |
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| Authors: | Liang Hongwen |
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| Abstract: | Based on the stationary observations from 1984 to 1989 at Qiping Forest Station of Cenxi County, Guangxi, the mean annual litter in broad-leaved evergreen forest was 8. 062 t/ha. a, and the restitution of nine nutrient elements, including N, P, K, Ca, Mg, S, Mn, Cu and Zn, was 209. 47kg/ha. a, and they were 1. 82 and 2. 08 times higher than those in Chinese fir plantation, respectively. The decomposition rates of litter were 10842, 06602, and 0.8871 g/g.a for the leaf, branch and fruit of broad-leaved evergreen forest, and 0.6084, 0. 3795, and 0. 5255 g/g.a for those of Chinese fir plantation, indicating that broad-leaved evergreen forest was better than Chinese fir plantation in improving soil fertility. |
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| Keywords: | broad-leaved evergreen forest coniferous forest China fir litter-fall mineral nutrition of plant nutrient cycling return |
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