| 锡林郭勒典型草原植被高度和盖度对风吹雪的影响 |
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| 引用本文： | 董智,李红丽,左合君,魏江生,胡春元.锡林郭勒典型草原植被高度和盖度对风吹雪的影响[J].冰川冻土,2010,32(6). |
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| 作者姓名： | 董智 李红丽 左合君 魏江生 胡春元 |
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| 作者单位： | 1. 山东农业大学,林学院,山东,泰安,271018
2. 内蒙古农业大学,生态环境学院,内蒙古,呼和浩特,010019 |
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| 基金项目： | 内蒙古自然科学基金项目(200607010601); 国家自然科学基金项目(30860056)资助 |
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| 摘 要： | 采用野外调查与风雪流实测的方法对内蒙古锡林郭勒大针茅典型草场风雪流与植被高度、盖度的关系进行了研究.结果表明:随着草场退化程度的减轻和草场植被高度、盖度的增大,下垫面粗糙度、积雪厚度和积雪量呈增大趋势,而近地表风速、移雪强度与上层含雪量则呈下降趋势.移雪强度与距地表高度,积雪深度与植被高度,积雪深度与盖度间均符合指数函数关系.中度、轻度退化草场和封育草场的积雪深度分别是重度退化草场的1.7、3.1和5.2倍.随着退化程度的增加,风吹雪灾害形成的可能性增大.加强草原保护与建设,对减轻风吹雪危害和积蓄积雪资源具有重要作用.
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| 关 键 词： | 典型草原 风吹雪 移雪强度 积雪深度 植被高度 植被盖度 |
Effect of Vegetation Height and Coverage on Snow Drift on the Typical Grassland in Xilin Gol, Inner Mongolia |
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| DONG Zhi,LI Hong-li,ZUO He-jun,WEI Jiang-sheng,HU Chun-yuan.Effect of Vegetation Height and Coverage on Snow Drift on the Typical Grassland in Xilin Gol, Inner Mongolia[J].Journal of Glaciology and Geocryology,2010,32(6). |
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| Authors: | DONG Zhi LI Hong-li ZUO He-jun WEI Jiang-sheng HU Chun-yuan |
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| Affiliation: | DONG Zhi1,LI Hong-li1,ZUO He-jun2,WEI Jiang-sheng2,HU Chun-yuan2(1.Forestry College of Sh,ong Agricultural University,Tai'an Sh,ong 271018,China,2.Ecology ,Environment College of Inner Mongolia Agricultural University,Huhhot Inner Mongolia 010019,China) |
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| Abstract: | Relationships between snow drift and vegetation height and coverage,and the properties of Stipa grandis typical grassland were studied by in-situ investigation and measurement in Xinlin Gol League of Inner Mongolia.The results show that the surface roughness,snow depth and snow amount increase with relieved grassland degeneration and increased vegetation height and coverage,together with a decrease in land surface wind velocity,drifting intensity and snow amount at the upper layer of snow drifting profile.T... |
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| Keywords: | typical grassland snow drift snow drifting intensity snow depth vegetation height vegetation coverage |
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