X img

官方微信

img

群号:冰川冻土交流群

QQ群:218834310

高级检索
作者投稿 专家审稿 编辑办公 编委办公 主编办公

冰川冻土 ›› 2014, Vol. 36 ›› Issue (5): 1049-1057.doi: 10.7522/j.issn.1000-0240.2014.0127

• 冰冻圈与全球变化 •    下一篇

基于气候干燥度的青藏高原多年冻土区分类新方案

金会军, 吕兰芝, 何瑞霞, 王绍令   

  1. 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
  • 收稿日期:2014-06-10 修回日期:2014-09-02 出版日期:2014-10-25 发布日期:2014-11-19
  • 作者简介:金会军(1967-), 男, 陕西岐山人, 研究员, 1998年在中国科学院兰州冰川冻土研究所获博士学位, 现主要从事冻土学与寒区工程研究. E-mail:hjjin@lzb.ac.cn
  • 基金资助:
    国家自然科学基金项目(41121061;41472229)资助

A new aridity-based classification of permafrost zones on the Tibetan Plateau

JIN Huijun, LÜ Lanzhi, HE Ruixia, WANG Shaoling   

  1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2014-06-10 Revised:2014-09-02 Online:2014-10-25 Published:2014-11-19

摘要: 采取综合分析与主导因素相结合的原则, 阐明了青藏高原各大地貌单元的大气环流及自然景观特征, 描述了高原多年冻土形成和分布格局. 基于综合地域分异规律, 以年降水量和干燥度(蒸发/降水)作为主要指标, 并参考年平均气温、气温年较差及年平均空气湿度等, 结合地形因素将高原多年冻土划分为: 湿润型、亚湿润型、半干旱型、干旱型和极干旱型五种类型, 并对各类多年冻土的代表性地区的冻土特征分别进行论述. 该分类方法适合于小比例尺的冻土测绘和制图.

关键词: 青藏高原, 地域分异, 干燥度, 冻土类型

Abstract: By comprehensive analysis and identification of principal impacting factors and by taking into account of spatial and temporal evolution of major atmospheric circulations and landscape features on the Tibetan Plateau, the formation and distributive features of permafrost are described in three dimensions. On the basis of comprehensive regionalization of plateau permafrost, by using annual precipitation and aridity as the major criteria and by taking into account of influences from annual mean air temperature, annual range of air temperature, mean annual relative humidity and topographical factors, the permafrost on the Tibetan Plateau is divided into five types: humid, semi-humid, semi-arid, arid and hyper-arid. Features of permafrost in each representative region are described. This classification of permafrost is suitable for the investigation and mapping of permafrost at regional to local scales.

Key words: Tibetan Plateau, regional differentiation, aridity, permafrost types

中图分类号: 

  • P642.14