Litter Hydrological Characteristics of Typical Forest Communities in Liaoheyuan Nature Reserve

YU Xiao-wen; SONG Xiao-shuai; KANG Feng-feng; HAN Hai-rong

doi:10.13961/j.cnki.stbctb.2014.04.026

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Litter Hydrological Characteristics of Typical Forest Communities in Liaoheyuan Nature Reserve

- Litter Hydrological Characteristics of Typical Forest Communities in Liaoheyuan Nature Reserve
- Bulletin of Soiland Water Conservation Vol. 33, Issue 4, Pages: 65-69(2014)
- 作者机构：
  
  北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.04.026
  CLC：
- Published：2014
- 稿件说明：
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YU Xiao-wen, SONG Xiao-shuai, KANG Feng-feng, et al. Litter Hydrological Characteristics of Typical Forest Communities in Liaoheyuan Nature Reserve[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 65-69.
DOI：

YU Xiao-wen, SONG Xiao-shuai, KANG Feng-feng, et al. Litter Hydrological Characteristics of Typical Forest Communities in Liaoheyuan Nature Reserve[J]. Bulletin of Soiland Water Conservation, 2014, 33(4): 65-69. DOI： 10.13961/j.cnki.stbctb.2014.04.026.

摘要

以辽河源自然保护区典型森林群落为对象

对其下枯落物储量和持水量等水文特性进行了研究。结果表明:(1) 研究区枯落物总储量变化范围为7.92~15.56 t/hm

60 a林龄油松纯林储量最大

华北落叶松纯林最小;(2) 研究区最大持水率变化范围为164.12%~333.06%

最大持水率大小排序为:杨桦混交林 > 华北落叶松纯林 > 50 a油松纯林 > 60 a油松纯林 > 40 a油松纯林;(3) 研究区最大持水量变化范围为21.31~38.13 t/hm

最大持水量大小依次为:杨桦混交林 > 60 a油松纯林 > 50 a油松纯林 > 华北落叶松纯林 > 40 a油松纯林;(4) 对枯落物持水过程进行回归分析

各群落枯落物未分解层和半分解层持水量与浸水时间之间均服从对数函数回归关系(R>0.87)

持水速率与浸泡时间之间均符合幂函数关系(R>0.87)。

Abstract

By taking typical forest communities in the Liaoheyuan Nature Reserve as an object

litter storage and water-holding were studed. The results show that:(1) The variation range of litter layer reserves was about 7.92~15.56 t/hm2

the litter layer total storage capacity in the 60 a Pinus tabulaeformis was the largest

and Larix kaempferi was the least;(2) The largest water-holding rate was about 164.12%~333.06% and the order was Populus davidiana×Betula platyphylla > Larix kaempferi > Pinus tabulaeformis(50 a) > Pinus tabulaeformis(60 a) > Pinus tabulaeformis(40 a);(3) The maximum water-holding rate ranged from 21.31 t/hm2 to 38.13 t/hm2 and the order was Populus davidiana×Betula platyphyll > Pinus tabulaeformis(60 a) > Pinus tabulaeformis(50 a) > Larix kaempferi > Pinu stabulaeformis(40 a);(4) By statistic analyse

the equation between water-holding capacity of undecomposed litter and semi-decomposed one and immersion time obeyed logarithmic regression relationship(R>0.87)

while the water-holding speed rate and immersion time obeyed power function relationship(R>0.87).

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