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当前位置: 首页 > 文章 > 阿什河上游小流域主要林分枯落物层的持水特性 林业科学研究 2012,25 (2) 212-217
Position: Home > Articles > Water-Holding Characteristics of Litter Layers of Main Forest Types in the Upstream Small Watershed of Ashi River Forest Research 2012,25 (2) 212-217

阿什河上游小流域主要林分枯落物层的持水特性

作  者：
韩春华;赵雨森;辛颖;魏琳;张欣
单  位：
东北林业大学林学院
关键词：
阿什河;小流域;枯落物;持水特性
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 39.81t.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1.726.71 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。
译  名：
Water-Holding Characteristics of Litter Layers of Main Forest Types in the Upstream Small Watershed of Ashi River
作  者：
HAN Chun-hua,ZHAO Yu-sen,XIN Ying,WEI Lin,ZHANG Xin(School of Forestry,Northeast Forestry University,Harbin 150040,Heilongjiang,China)
关键词：
Ashi river;small river basin;litter;water-holding characteristics
摘  要：
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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