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| 青藏高原冻土及水热过程与寒区生态环境的关系 | |
| 引用本文： | 吴青柏,沈永平,施斌.青藏高原冻土及水热过程与寒区生态环境的关系[J].冰川冻土,2003,25(3):250-255. |
| 作者姓名： | 吴青柏 沈永平 施斌 |
| 作者单位： | 1. 南京大学,地球环境计算工程研究所,地球科学系,江苏,南京,210093;中国科学院,寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃,兰州,730000 2. 中国科学院,寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃,兰州,730000 3. 南京大学,地球环境计算工程研究所,地球科学系,江苏,南京,210093 |
| 基金项目： | 中国科学院知识创新工程项目;KZCX1-SW-04; |
| 摘 要： | 从青藏高原冻土及水热过程出发，利用青藏高原活动层监测数据，讨论了冻土水热过程与植被生长环境的关系，比较了季节冻土区与多年冻土区水热过程的差异及与植被的关系，同时讨论了不同草地生态冻融过程的变化．结果表明，冻土及水热过程与寒区生态环境有着密切的关系，冻土及水热过程不仅控制着地表状态的变化，影响着植被的发育程度，同时二之间也存在着强烈的相互作用的关系．一旦地表条件被破坏，干扰了冻土水热过程与地表植被生长间的平衡关系。将引起生态环境的退化，出现荒漠化，甚至沙漠化． |
| 关 键 词： | 青藏高原 冻土 水热过程 植被 生态环境 荒漠化 寒区 |
| 文章编号： | 1000-0240(2003)03-0250-06 |
| 修稿时间： | 2002年8月7日 |
Relationship Between Frozen Soil Together with Its Water-Heat Process and Ecological Environment in the Tibetan Plateau |
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| WU Qing-bai ,\ SHEN Yong-ping ,\ SHI Bin.Relationship Between Frozen Soil Together with Its Water-Heat Process and Ecological Environment in the Tibetan Plateau[J].Journal of Glaciology and Geocryology,2003,25(3):250-255. | |
| Authors: | WU Qing-bai \ SHEN Yong-ping \ SHI Bin |
| Institution: | WU Qing-bai 1,2,\ SHEN Yong-ping 2,\ SHI Bin 1 |
| Abstract: | The relationship between frozen soil together with its water-heat process and vegetation-growing environment is discussed according to the monitored data of active layers in the Tibetan Plateau. The water-heat process in seasonal frozen soil is compared with that in permafrost. Freezing and thawing process changing with meadow ecology is discussed. Analysis result shows that vegetation ecology in cold region has an interactive relationship with frozen soil and its water-heat process. Frozen soil and its water-heat process not only control the change of surface state, but also affect the vegetation-growing extent. They have an extensive relationship of interaction. If the surface condition and the balance between vegetation growth and water-heat in frozen soil are destroyed, there present desertification. |
| Keywords: | frozen soil water-heat process ecological environmental in cold regions |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |