Hydrological Effects of Forest Litters and Soil in Rocky Mountain Area of Northern China

ZHAO Yang; YU Xin-xiao; WU Hai-long; SONG Si-ming; HUANG Zhi-ying

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Hydrological Effects of Forest Litters and Soil in Rocky Mountain Area of Northern China

更新时间：2024-11-07

- Hydrological Effects of Forest Litters and Soil in Rocky Mountain Area of Northern China
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  北京林业大学水土保持学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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ZHAO Yang, YU Xin-xiao, WU Hai-long, et al. Hydrological Effects of Forest Litters and Soil in Rocky Mountain Area of Northern China[J]. 2011, 25(6).
DOI：

ZHAO Yang, YU Xin-xiao, WU Hai-long, et al. Hydrological Effects of Forest Litters and Soil in Rocky Mountain Area of Northern China[J]. 2011, 25(6). DOI：

摘要

以河北省围场县北沟林场内4种不同林分的枯落物层和土壤层为研究对象

对其水文效应进行初步研究。结果表明:(1)落叶松、油松混交林枯落物蓄积量最大

为12.28t/hm2

最大持水量为24.60t/hm2

有效拦蓄量为27.19t/hm2;油松林的枯落物蓄积量为11.74t/hm2

最大持水量为19.30t/hm2

有效拦蓄量为22.21t/hm2;落叶松林的枯落物蓄积量为9.32t/hm2

最大持水量为11.60t/hm2

有效拦蓄量为16.20t/hm2;落叶松白桦混交林的枯落物蓄积量为5.58t/hm2

最大持水量为12.90t/hm2

有效拦蓄量为13.53t/hm2。(2)半分解层枯落物浸泡8h已基本达到饱和

而未分解层需浸泡10h

通过分析得出持水量与浸泡时间的关系为Q=aln(t)+b;枯落物在浸水的前30min内吸水速率最大

6h左右时吸水速率明显减缓

枯落物吸水速率与浸泡时间的关系为V=ktn。(3)落叶松白桦混交林土壤层持水能力最强

为377.03t/hm2;落叶松油松混交林土壤层的持水能力最差

为241.9t/hm2

利用幂函数对入渗速率与入渗时间进行拟合

其相关系数均在0.95以上。

Abstract

A pilot study of hydrological effect s of litters layer and soil layer was carried out in four kinds of forest stands in Beigou forest farm

Hebei province.The result showed:(1)The litter total storage capacity of Larix principis-rupprechti mixed Chinese pine was 12.28 t/hm2

the maximum water capacity was 24.60 t/hm2

the modified interception amount was 27.19 t/hm2;the litter total storage capacity of Chinese pine was 11.74 t/hm2

the maximum water capacity was 19.30 t/hm2

the modified interception amount was...

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