| 干扰对东祁连山高寒杜鹃灌丛土壤水热性能的影响 |
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| 引用本文： | 张德罡,胡自治.干扰对东祁连山高寒杜鹃灌丛土壤水热性能的影响[J].甘肃农业大学学报,1999,34(3):243-246. |
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| 作者姓名： | 张德罡 胡自治 |
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| 作者单位： | 甘肃农业大学草业学院!兰州７３００７０ |
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| 摘 要： | 东祁连山高山地带的杜鹃灌丛受到放牧、砍伐和滑坡３种干扰后，第一年４～１０月，０～１０Ｃｍ土层的平均温度和含水量测定结果表明，与对照相比，长期重牧、砍伐和滑坡后土壤温度分别上升１.４℃、２．８℃和３．１℃；含水量则分别下降４４．２％、０．１１％和５０．６％，均有极显著差异。说明植被对土壤的水分涵养能力具有十分重要的作用，在保护和利用该类型及相邻草地资源时应予以高度重视
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| 关 键 词： | 东祁连山 高寒杜鹃灌丛 干扰 土壤 水热性状 |
The effect of disturbing on soil water and heat regimes under alpine Rhododendron shrubs in Eastern Qilian Mountains |
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| Zhang Degang ,Hu Zizhi, Yu Yingwen ,Xu Changlin.The effect of disturbing on soil water and heat regimes under alpine Rhododendron shrubs in Eastern Qilian Mountains[J].Journal of Gansu Agricultural University,1999,34(3):243-246. |
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| Authors: | Zhang Degang Hu Zizhi Yu Yingwen Xu Changlin |
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| Abstract: | The soil temperature and water content of alpine Rhododendron community inEastern Qilian Mountains disturbed by grazing, deforest and landsip were measured from April toOctober in 1997. The results indicated that the average soil temperature increased 1 .4℃, 2.8℃and3. 1℃ respectively. Meanwhile the average water content in soil decreased by 44.2 %, 0. 11 % and50.6 % respectively. All of variances in soil temperature and water content were extremelysignificant (p<0.01). The study indicated that the shrub vegetation is very important for the waterconservation in the area and should be considered seriously for the grassland utilization andprotection. |
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| Keywords: | Eastern Qilian Mountains alpine Rhododendron shrubs disturbing soil waterand heat regimes |
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