Distribution Characteristics and Water Conservation Capacity of Litter in Main Forests of Xiaowutai Mountain

SHI Liutong; SHI Changqing; DU Chenxi; YANG Jianying

doi:10.13870/j.cnki.stbcxb.2022.05.025

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Distribution Characteristics and Water Conservation Capacity of Litter in Main Forests of Xiaowutai Mountain

更新时间：2025-03-12

- Distribution Characteristics and Water Conservation Capacity of Litter in Main Forests of Xiaowutai Mountain
- Vol. 36, Issue 5, Pages: 195-203(2022)
- 作者机构：
  
  1. 北京林业大学水土保持学院,北京,100083
  2. 淮河水利委员会淮河流域水土保持监测中心站,安徽,蚌埠,233000
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2022.05.025
  CLC： S727.21
- Published：2022
- 稿件说明：
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SHI Liutong, SHI Changqing, DU Chenxi, et al. Distribution Characteristics and Water Conservation Capacity of Litter in Main Forests of Xiaowutai Mountain[J]. 2022, 36(5): 195-203.
DOI：

SHI Liutong, SHI Changqing, DU Chenxi, et al. Distribution Characteristics and Water Conservation Capacity of Litter in Main Forests of Xiaowutai Mountain[J]. 2022, 36(5): 195-203. DOI： 10.13870/j.cnki.stbcxb.2022.05.025.

摘要

为评估小五台山地区主要林分的水源涵养能力

同时为筛选水源涵养树种提供新思路

通过浸泡法和模拟降雨法

对小五台山地区7种典型林分枯落物分布特征及水源涵养能力进行研究。结果表明:(1)林分枯落物覆盖面积和厚度均表现为阔叶林大于针阔叶混交林、针叶林

其最大分别为青杨纯林和蒙古栎纯林

且厚度表现出坡下大于坡上的特征;(2)枯落物蓄积量为油松纯林＞青杨纯林＞油松×蒙古栎混交林＞白桦纯林＞粉桦×云杉混交林＞蒙古栎纯林＞椴树纯林

其中半分解层大于未分解层;(3)枯落物吸持能力表现为半分解层大于未分解层

且针阔叶混交林和大部分阔叶林大于针叶林

其中青杨纯林的最大

最大持水量、有效拦蓄量和最终吸持量分别为1.69

1.37

0.41 mm;(4)所有林分枯落物持水率均表现为浸泡法大于模拟降雨法

只采用传统的浸泡法会导致研究结果偏大。各林分枯落物水源涵养能力表现为阔叶林和针阔混交林优于针叶林

其中青杨纯林和白桦纯林水源涵养能力最强

在今后水源涵养林的树种筛选中可考虑多选择青杨和白桦等阔叶树。

Abstract

In order to evaluate the water conservation capacity of main forests in Xiaowutai Mountains and provide a new idea for the selection of water conservation tree species

the distribution characteristics and water conservation capacity of litter of seven typical forests in Xiaowutai Mountains were studied by immersion method and simulated rainfall method. The results showed that: (1) The litter thickness and distribution range of broad-leaved forests were greater than those of coniferous and broad-leaved mixed forests and coniferous forests

which were the greatest in pure forest of Populus cathayana Rehd. and pure forest of Quercus mongolica Fischer ex Ledebour

respectively

and the thickness on lower slope were greater than that on upper slope. (2) Litter accumulation followed the order of pure forest of Pinus tabuliformis Carrière > pure forest of P. cathayana Rehd. > mixed forest of P. tabuliformis Carrière and Q. mongolica Fischer ex Ledebour > pure forest of B. platyphylla Suk. > mixed forest of B. platyphylla Suk. and Picea asperata Masters > pure forest of Q. mongolica Fischer ex Ledebour > pure forest of Tiliatuan Szyszylowicz

and the litter accumulation of the semi-decomposed layer was larger than that of the undecomposed layer. (3) The litter holding capacity of the semi-decomposed layer was larger than that of the undecomposed layer

and the litter holding capacity of coniferous and broad-leaved mixed forests and mostly broad-leaved forests was greater than that of coniferous forests. Among them

the maximum water holding capacity

effective storage capacity and the final holding capacity of litter of pure forest P. cathayana Rehd. of were the greatest

which was 1.69

1.37 and 0.41 mm

respectively. (4) The water holding capacity of litter in all forests was higher in immersion method than that in rainfall simulation method

so if only using the traditional soaking method

the results would be too large. The water conservation capacity of litter in broad-leaved forest

coniferous and broad-leaved mixed forest was better than that in coniferous forest

among which the water conservation capacity of pure forest of P. cathayana Rehd. and pure forest of B. platyphylla Suk. both were the strongest. More broad-leaved trees such as P. cathayana Rehd. and B. platyphylla Suk. should be selected in the selection of tree species for water conservation forest in the future.

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