| 阿什河上游小流域主要林分枯落物层的持水特性 |
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| 引用本文： | 韩春华,赵雨森,辛颖,魏琳,张欣.阿什河上游小流域主要林分枯落物层的持水特性[J].林业科学研究,2012,25(2):212-217. |
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| 作者姓名： | 韩春华 赵雨森 辛颖 魏琳 张欣 |
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| 作者单位： | 东北林业大学林学院,黑龙江哈尔滨,150040 |
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| 基金项目： | 国家自然科学基金(31070629) |
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| 摘 要： | 在阿什河上游的帽儿山实验林场境内,选取代表性的6种林分类型,测定了各林分枯落物层的蓄积量,采用室内浸泡法对持水能力进行研究。结果表明:6种林分枯落物层厚度为2.8 5.5 cm;枯落物总蓄积量为9.27 39.81 t·hm-2;最大持水量为25.65 136.83 t·hm-2;最大拦蓄水量为21.02 87.53 t·hm-2;总有效拦蓄水深为1.72 6.71 mm。6种林分枯落物层的持水能力排序为:兴安落叶松林>针阔混交林>红松林>蒙古栎林>樟子松林>水曲柳林。对6种林分枯落物的持水量、吸水率随浸泡时间的变化进行了回归拟合,表明枯落物持水量与浸泡时间存在对数关系,枯落物吸水速率与浸泡时间存在幂函数关系。
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| 关 键 词： | 阿什河 小流域 枯落物 持水特性 |
| 收稿时间： | 2011/9/30 0:00:00 |
Water-Holding Characteristics of Litter Layers of Main Forest Types in the Upstream Small Watershed of Ashi River |
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| HAN Chun-hu,ZHAO Yu-sen,XIN Ying,WEI Lin and ZHANG Xin.Water-Holding Characteristics of Litter Layers of Main Forest Types in the Upstream Small Watershed of Ashi River[J].Forest Research,2012,25(2):212-217. |
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| Authors: | HAN Chun-hu ZHAO Yu-sen XIN Ying WEI Lin and ZHANG Xin |
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| Institution: | School of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China;School of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China;School of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China;School of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China;School of Forestry, Northeast Forestry University, Harbin 150040, Heilongjiang, China |
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| Abstract: | Six types of representative forest stands at the Maoershan Experimental Station in the Ashi River’s upstream watershed were selected to investigate the forest stock volume and water-holding capacity of litter layers,and the data obtained were analyzed quantitatively.The results showed that the thickness of litter layer was in the range of 2.85.5 cm;the total stock volume of litter layer was in 9.2739.81 t·hm-2;the maximum water holding capacity ranged from 25.65 t·hm-2 to 136.83 t·hm-2;the maximum retain capacity was 21.0287.53 t·hm-2;and the total effective retain deepness was 1.726.71 mm.The water-holding capacity of the six types of forest litter layers was listed in decreasing order as follows: Larix gmelini forest>conifer-broadleaved mixed forest>Pinus koraiensis forest>Quercus mongolica forest>Pinus sylvestris var.mongolica forest>Fraxinus mandshurica forest.Regression analysis for the six types of forest stand litters showed logarithmic relationships between water-holding capacity of litter and socking time,and power functions between water absorption rate and soaking time. |
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| Keywords: | Ashi river small river basin litter water-holding characteristics |
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