| 色季拉山云杉林枯落物持水性能研究 |
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| 引用本文： | 万丹,丁晨曦,欧伟,喻武,张博.色季拉山云杉林枯落物持水性能研究[J].安徽农业科学,2010,38(23):12910-12912. |
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| 作者姓名： | 万丹 丁晨曦 欧伟 喻武 张博 |
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| 作者单位： | 1. 西藏农牧学院资源与环境学院,西藏林芝,860000
2. 重庆市合川区水利工程管理站,重庆,401520 |
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| 基金项目： | 科技部项目，西藏农牧学院青年基金项目 |
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| 摘 要： | 目的]研究森林枯落物对水源涵养的作用。方法]在色季拉山林分内选择具有代表性的部位设置样方,采集样方内的枯落物,记录枯枝落叶层和半分解层厚度,称量样品的湿重和干重,计算干物质蓄积量,并测定枯落物的持水量和吸水速率。结果]枯枝落叶层和半分解层单位面积贮水量为56.89和116.89t/hm2。用浸泡法处理5min时,枯落物的吸水速率最大,未分解层和半分解层的吸水速率分别为1956和1896g/（kg.h）。0～10min内半分解层的吸水速率小于未分解层,而10min后则大于未分解层。枯落物未分解层和半分解层的最大持水量分别为89.77和73.51t/hm2,有效拦蓄量分别达62.38和164.06t/hm2。结论]云杉枯落物具有显著的蓄水作用。
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| 关 键 词： | 云杉 枯落物 色季拉山 持水性 |
Research on the Water-holding Capacity of Litters in Spruce Forest of Shergyla Mountain |
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| WAN Dan et al.Research on the Water-holding Capacity of Litters in Spruce Forest of Shergyla Mountain[J].Journal of Anhui Agricultural Sciences,2010,38(23):12910-12912. |
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| Authors: | WAN Dan |
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| Institution: | WAN Dan et al (Faculty of Resource and Environment,Tibet Agricultural and Pasture College,Linzhi,Tibet 860000) |
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| Abstract: | Objective]The purpose was to research the reservation effect of litters in forest on water source.Method] The representative locations were selected in forest stand of Shergyla Mountain to set up plots.The litters were collected from plots,the thickness of litter and semi-decomposed layers were recorded,the wet and dry weights of samples were weighted,the accumulation amount of dry matter was calculated and the water-holding capacity and water-absorption rate of litters were determined.Result] The water ... |
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| Keywords: | Spruce Litters Shergyla mountain Water-holding |
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