Variation Characteristics and Trends of Temperature and Evaporation in Huanren County in Recent 60 Years

• 作者: Ji Qi Li Ji Wang Junchao Zhao Lei
• 来源期刊: 气象与环境研究：英文版
• 学科: 农学
• 关键词: 日平均气温 蒸发量 桓仁县 气候倾向率 年平均气温 特征 量变 县市
• 年，卷（期）: 2016,（3）
• 页码范围: 7-9
• 页数: 3页
• 分类号: S667.2

摘要

Based on the data of daily average temperature and evaporation in Huanren County from 1953 to 2012,the changing characteristics and trends of temperature and evaporation were analyzed by using climatic tendency rate and sliding T test method. The results showed that annual average temperature in Huanren County showed a significant increasing trend in recent 60 years,and its linear tendency rate was 0. 26 ℃ /10 a. Temperature increase was in other seasons except for summer. There was a sudden change in annual average temperature in 1987,and winter average temperature changed suddenly in 1969 and 1985,while there were no sudden changes in average temperature in other seasons. Annual average evaporation also decreased,and its linear trend rate was- 8. 19 mm /10 a; average evaporation tended to decrease in spring and summer and increased in autumn and winter. In a word,the climate tended to be warm and dry in Huanren County.