中国北方地区霜冻日的变化与区域增暖相互关系
收稿日期: 2003-05-09
修回日期: 2003-07-25
网络出版日期: 2003-12-25
基金资助
国家重点基础研究发展规划项目“我国生存环境演变和北方干旱化趋势预测研究”(G1999043405)；中国科学院知识创新工程重大项目“西部生态环境演变规律与水土资源可持续利用研究”(KZCX1-10-07)
Variation of Frost Days and Its Relationship to Regional Warming in Northern China
Received date: 2003-05-09
Revised date: 2003-07-25
Online published: 2003-12-25
Supported by
National Key Planning Development for Basic Research, No.G1999043400; Knowledge Innovation Project of CAS, No.KZCX1-10-07
马柱国 . 中国北方地区霜冻日的变化与区域增暖相互关系[J]. 地理学报, 2003 , 58(7s) : 31 -37 . DOI: 10.11821/xb20037s004
Based on daily mean temperature data from 62 stations of northern China since 1951, the trend of frost days and temperature has been analyzed, and the variation trend of the starting date in autumn and the ending date in spring have been shown. The results indicate an obvious reduction trend of frost days, an increase trend of frost-day temperature in northern China from 1951 to 2000, and the increasingly longer growth season due to early start date of spring and late ending date of autumn. We can also find a good relationship between frost-day temperature and mean temperature in the period, this may foreshow the variation of mean temperature is produced by frost-day temperature.
Key words： frost day; climate change; regional warming; trend; China
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