Comparision of Litterfall and Its Process Between Some Forest Types in Loess Platean

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Comparision of Litterfall and Its Process Between Some Forest Types in Loess Platean

更新时间：2024-11-07

- Comparision of Litterfall and Its Process Between Some Forest Types in Loess Platean
- Vol. 15, Issue 5, Pages: 91-94(2001)
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- DOI：
  CLC： S714.7
- Published：2001
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Comparision of Litterfall and Its Process Between Some Forest Types in Loess Platean[J]. 2001, 15(5): 91-94.
DOI：

Comparision of Litterfall and Its Process Between Some Forest Types in Loess Platean[J]. 2001, 15(5): 91-94. DOI：

摘要

对油松、山杨、刺槐、沙棘林的凋落及其动态过程的研究结果表明

各林型枯枝落叶层现存蓄积量分别为17.95

8.34

5.48

4.75t/hm2

针叶林大于阔叶林.年凋落量分别为3.24

3.09

3.08

2.45t/hm2.各树种大量凋落时间一般在秋末和冬初

即自9月下旬至11月上旬

但不同树种其凋落过程不完全相同

这主要由其生态学特性所决定.凋落物中均以叶为主

分别占91.1%

73.5%

62.0%

71.8%.年分解量为2.75

2.25

1.97

1.62t/hm2.在目前的年龄和结构状态下

各林型林地枯枝落叶蓄积量每年仍有一定的增加

其增加量分别为0.49

0.84

1.11

0.83t/hm2

阔叶林大于针叶林.

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