| 人类活动对青藏高原冻土环境的影响 |
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| 引用本文： | 王一博,王根绪,常娟.人类活动对青藏高原冻土环境的影响[J].冰川冻土,2004,26(5):523-527. |
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| 作者姓名： | 王一博 王根绪 常娟 |
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| 作者单位： | 1. 兰州大学,资源环境学院,甘肃,兰州,730000
2. 兰州大学,资源环境学院,甘肃,兰州,730000;中国科学院,山地灾害与环境研究所,四川,成都,610041 |
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| 基金项目： | 国家自然科学基金
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中国科学院知识创新工程项目 |
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| 摘 要： | 采用物探技术、植物样方调查对青藏公路沿线工程活动对冻土环境因素之间的影响进行了分析研究, 结果表明: 由于工程活动对原冻土区地貌、植被及表土层结构等的干扰破坏, 致使工程区及其影响区冻土上限下降速度加快, 同时得出了冻结层上水埋深(1～3 m)与冻土层厚度变化的关系以及冻结层上水水位随冻土上限下降而变化的规律. 指出工程活动对植被的影响不仅与工程本身有关, 也与工程区冻土厚度、地下水、土壤等因素有密切关系.
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| 关 键 词： | 人类活动 青藏高原 冻土环境 |
| 文章编号： | 1000-0240(2004)05-0523-05 |
| 修稿时间： | 2004年1月10日 |
Impacts of Human Activity on Permafrost Environment of the Tibetan Plateau |
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| WANG Yi-bo.Impacts of Human Activity on Permafrost Environment of the Tibetan Plateau[J].Journal of Glaciology and Geocryology,2004,26(5):523-527. |
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| Authors: | WANG Yi-bo |
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| Institution: | WANG Yi-bo~ |
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| Abstract: | In this paper, the effect of engineering activity on permafrost environment along the Qinghai-Tibetan Highway is analyzed by means of exploration and plant sampling. The analysis shows that the permafrost table decline is accelerating. The reason is that the original geomorphological structure, vegetation and structure of surface soil were destroyed owing to the engineering activity. Meanwhile the relation is gotten between the water level upon permafrost and the permafrost depth, and the dependence of the water level on the permafrost depth is worked out. At last the following conclusion can be drawn the influence of engineering activity on vegetation not only directly associates with the engineering itself but also indirectly associates with the permafrost depth, grounder water level, soil and other factors in the engineering areas. |
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| Keywords: | human activity permafrost environment Tibetan Plateau |
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