%0 Journal Article
%T Variations and trends of the freezing and thawing index along the Qinghai-Xizang Railway for 1966-2004<br>1966-2004年青藏铁路沿线年冻结与融化指数的变化趋势
%A JIANG Fengqing
%A HU Ruji
%A LI Zhen
%A <br>姜逢清
%A 胡汝骥
%A 李珍
%J 地理学报(英文版)
%D 2008
%I 
%X Annual freezing and thawing index of 7 meteorological stations along the Qing-hai-Xizang Railway were calculated based on daily maximum and minimum temperature records for 1966–2004. Trends of annual freezing and thawing index were analyzed using the Mann-Kendall test and a simple linear regression method. The results show that: 1) The mean annual freezing indices range from 95 to 2300°C·d and the mean annual thawing indices range from 630 to 3250°C·d. The mean annual freezing index of the 7 stations exhibited decreasing trends with decreasing rate of  16.6— 59.1°C·d /10a. The mean annual thawing index of these 7 stations showed increasing trends with the related decreasing rate is 19.83–45.6°C·d /10a. 2) The MK trend test indicated the significant decreasing trends (significant at < 0.05 significant level) in the annual freezing index for most stations except for Golmud. The significant increasing trends can be observed in the annual thawing index for 4 stations except Golmud and Tuotuohe. Golmud was the only station with no trends in both annual freezing and annual thawing index. Foundation: Knowledge Innovation Program of Xinjiang Institute of Ecology and Geography, CAS, No.0571041 Author: Jiang Fengqing (1963–), Ph.D and Associate Professor, specialized in regional climatic and environmental changes.
%K freezing and thawing index
%K global warming
%K trends
%K Qinghai-Xizang Railway<br>青藏铁路
%K 冻结
%K 融化指数
%K 变化趋势
%K 全球变暖
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=E7E6A89DD0CE36AA3756C02EB6F15CA7&aid=94CD45D7EA5B8AFD98CCC8A9E63CCBFD&yid=67289AFF6305E306&vid=13553B2D12F347E8&iid=CA4FD0336C81A37A&sid=38B194292C032A66&eid=7801E6FC5AE9020C&journal_id=1009-637X&journal_name=地理学报(英文版)&referenced_num=0&reference_num=20