| 祁连山北坡主要草地类型的土壤水分动态研究 |
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| 引用本文： | 黄德青,张耀生,赵新全,宋磊,王启兰.祁连山北坡主要草地类型的土壤水分动态研究[J].草业科学,2005,22(8):6-11. |
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| 作者姓名： | 黄德青 张耀生 赵新全 宋磊 王启兰 |
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| 作者单位： | 中国科学院西北高原生物研究所,青海,西宁,810001;中国科学院研究生院生物系,北京,100001;中国科学院西北高原生物研究所,青海,西宁,810001 |
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| 基金项目： | 中国科学院知识创新工程重大项目（kzcxl-09-01）和中国科学院西北高原生物研究所知识创新重点研究领域项目（cjc020144） |
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| 摘 要： | 祁连山北坡天然草地植被以高寒草原、山地草甸、山地草句草原、山地草原和山地荒漠草原等类型为主，对这5种典型草地类型土壤水分进行了观测，结果显示：不同草地类型生长季土壤水分动态变化规律基本一致，主要受降水量及其时间分配的影响，土壤水分的季节动态可划分为消耗期、积累期、消退期和稳定期4个时段；5类草地群落土壤水分垂直变化与土层深度的关系并不完全一致，其剖面变化可分为活跃层、调节层和相对稳定层；土壤水分储量以山地草句最高，其它依次为山地草句草原、高寒草原、山地草原、山地荒漠草原。
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| 关 键 词： | 祁连山 草地类型 土壤水分动态 降水量 |
| 文章编号： | 1001-0629（2005）08-0006-05 |
| 收稿时间： | 12 8 2004 12:00AM |
| 修稿时间： | 2004-12-08 |
Study on soil moisture dynamics of the main grassland types in the northern slopes of Qilianshan Mountains |
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| HUANG De-qing,ZHANG Yao-sheng,ZHAO Xin-quan,SONG Lei,WANG Qi-lan.Study on soil moisture dynamics of the main grassland types in the northern slopes of Qilianshan Mountains[J].Pratacultural Science,2005,22(8):6-11. |
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| Authors: | HUANG De-qing ZHANG Yao-sheng ZHAO Xin-quan SONG Lei WANG Qi-lan |
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| Abstract: | Based onthe research on soil water of five main vegetationtypes :alpine pastureland, moun-tainous meadow, mountainous meadow pastureland, mountainous pastureland, mountainous desertpastureland inthe northern slopes of the Qilianshan mountains ,the results showthat the seasonal dy-namics of soil moistureis deli mitedinto four stages :consumptive stage ,accumulating stage ,recedingstage ,stable stage.Seasonal change tendency of soil moisture of different vegetationtypesin growingperiodis al most identical , which is affected by precipitation and its temporal distribution.The rela-tionship between the vertical change of soil water and soil depth is not uniformabsolutely in the fivevegetation types andit can be classifiedinto three layers :active layer ,regulative layer and relativelystable layer.Soil water storage of mountainous meadowis the highest of the 5 vegetation types ,andothers are in order of mountainous meadow pastureland, alpine pastureland, mountainous pasture-land,and mountainous desert pastureland. |
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| Keywords: | Qilianshan mountains grassland type soil moisture dynamics precipitation |
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