| 北京山地不同海拔侧柏人工林枯落物水文效应研究 |
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| 引用本文： | 李艳丽.北京山地不同海拔侧柏人工林枯落物水文效应研究[J].防护林科技,2013(5):9-11. |
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| 作者姓名： | 李艳丽 |
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| 作者单位： | 河北省林业调查规划设计院 |
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| 基金项目： | 北京科技专项(Z111105055311043) |
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| 摘 要： | 通过对北京山地4个不同海拔侧柏人工林枯落物层水文效应进行研究,结果表明:北京山地侧柏人工林枯落物总储量在11.35～25.06t.hm-2之间,最大持水量在13.39～53.55t·hm-2之间,有效拦蓄能力在11.39～39.63t·hm-2之间,最大持水率在123.32%～217.85%之间,枯落物持水量与浸泡时间呈明显对数关系,枯落物吸水速率与浸泡时间呈明显幂函数关系。综合来看,海拔为758.55m的侧柏人工林枯落物涵养水源能力最好。
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| 关 键 词： | 侧柏 海拔 枯落物 水文效应 北京山地 |
Hydrological Effects of Litters of Platycladus orientalis Plantation With Different Altitudes on Mountains of Beijing |
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| Li Yanli.Hydrological Effects of Litters of Platycladus orientalis Plantation With Different Altitudes on Mountains of Beijing[J].Protection Forest Science and Technology,2013(5):9-11. |
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| Authors: | Li Yanli |
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| Institution: | Li Yanli(Forest Inventory and Planning Institute of Hebei Province,Shijiazhuang 050051,China) |
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| Abstract: | Hydrological effects of litter layers of Platycladus orientalis with four different altitudes of artificial forest stands on mountain of Beijing were studied.Result shows that:the litter total storage capacity is about 11.35-25.06 t·hm-2;the maximum water holding capacity of Platycladus of ientalis plantaiton of mountains of Beijing is about 13.39-53.55 t·hm-2;the modified interception capacity is about 11.39-39.63 t·hm-2;the maximum water holding rate is about 123.32%-217.85%.Water holding capacity & soaking time have significant logarithmic relationship;absorption rate & immersion time appear logarithmic power function.In general,litter of Platycladus orientalis plantation whose elevation being 758.55 m have the optimal water conservation capacity. |
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| Keywords: | Platycladus orientalis altitudes litters hydrological effects mountain of Beijing |
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