| 祁连山浅山区沙棘人工林调节水分作用研究 |
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| 引用本文： | 王红义.祁连山浅山区沙棘人工林调节水分作用研究[J].防护林科技,2013(6):10-12. |
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| 作者姓名： | 王红义 |
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| 作者单位： | 甘肃省张掖市寺大隆林场 |
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| 摘 要： | 通过对试验区沙棘林林冠层、枯枝落叶层、林地土壤层的生态水文功能分析,研究了祁连山浅山区沙棘人工林在调节水分方面的作用,结果表明:10年生沙棘林在郁闭度为0.7～0.8时,林冠对降雨的截留率为39.3%;枯枝落叶层厚度平均在1～3cm,枯落物质量22t·hm-2,水容重为干质量的2.12～4.25倍;蓄水量达13.65～23.37t·hm-2;林地0～20cm土壤的初渗率为16.165mm·min-1,是对照区的8.7倍;稳渗率为2.4mm·min-1,是对照区的2.53倍。
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| 关 键 词： | 祁连山 沙棘人工林 调节水分 |
Effect of Hippophae rhamnoides Plantation In Shallow Mountain Area on Qilian Mountains in Regulating Water |
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| Wang Hongyi.Effect of Hippophae rhamnoides Plantation In Shallow Mountain Area on Qilian Mountains in Regulating Water[J].Protection Forest Science and Technology,2013(6):10-12. |
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| Authors: | Wang Hongyi |
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| Institution: | Wang Hongyi(Sidalong Forest Farm,Zhangye City,Gansu Prov.,Zhangye 734000,China) |
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| Abstract: | Through analysis on eco-hydrological functions of canopy layer,litter layer & soil layer of forest land of Hippophae rhamnoides in pilot area,the functions of Hippophae rhamnoides plantation in shallow mountain area on Qilian Mountains in regulating water were studied.Result shows that: canopy rainfall interception rate is 39.3% while canopy density of 10-year-old Hippophae rhamnoides are from 0.7 to 0.8;average thickness of litter layer are from 1 to 3 cm;litter weight are 22 t ·hm-2;specific weight of water are about 2.12-4.25 times as heavy as dry unit weight;storage capacity reach from 13.65 to 23.37 t ·hm-2;initial infiltration rate of 0-20 cm soil of woodland are 16.165 mm ·min-1,being 8.7 times as large as that of the control area;steady infiltration rate are 2.4 mm·min-1,being 2.53 times as large as that of the control area. |
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| Keywords: | Qilian Mountains Hippophae rhamnoides plantation regulate water |
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