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麻栎人工林水源涵养效能研究

Water-source Conservation and Regulating Efficacy of Artificial Forest of Quercus acutissima

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【作者】 杨澄党坤良刘建军

【Author】 Yang Cheng Dang Kunlang Liu Jianjun (Dept. of Forest Resources Protection,NWFC,Yangling,Shaanxi 712100)

【机构】 西北林学院森林资源保护系

【摘要】 对麻栎人工林和原造林地灌丛、草地的水文要素进行了比较分析。结果表明:中龄麻栎人工林在生长季节,林冠层对一次降雨的拦截能力可达8.7mm,凋落物层的涵蓄能力可达3.1mm,分别是灌丛和草地的3倍和6倍;土壤对一次降雨的最大涵蓄量为910t/hm2,分别比灌丛和草地高了54%和72%。可见营造麻栎林后,有效地提高了原有植被拦蓄降水的能力,减少地表径流发生的机会和数量,发挥了较好的水源涵养效能

【Abstract】 The hydrological elements of artificial forest of Quercus acutissma and bush as well as grassland were analysed.The interception capacity of canopy was 8.7mm in one time of precipitation,the largest water retaining capacity of litter was 3.1mm,which was 3 times over that of bush and 6 times of grassland respectively.The largest water retaining capacity of the soil was 910t/hm 2 in one time of precipitation and was 54% and 72% higher than that of bush and grassland respectively.It was clear that the capacity of retaining precipitation of bush and grassland was increased and the chances and quantities of surface runoff were decreased after the forest of Quercus acutissima had been established .This showed that the forest of Quercus acutissima had stronger function of water-source conservation and regulating efficacy.

  • 【文献出处】 西北林学院学报 ,JOURNAL OF NORTHWEST FORESTRY COLLEGE , 编辑部邮箱 ,1997年02期
  • 【分类号】S715.7
  • 【被引频次】64
  • 【下载频次】214
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