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| 射洪县近30年区域气候特征分析 | |
| 引用本文： | 雷俊,方之芳,瞿婞,张婕.射洪县近30年区域气候特征分析[J].成都信息工程学院学报,2007,22(3):360-364. |
| 作者姓名： | 雷俊 方之芳 瞿婞 张婕 |
| 作者单位： | 1. 成都信息工程学院高原大气与环境研究中心,四川成都,610225;浙江省气象局,浙江杭州,310002 2. 中国气象局成都高原气象研究所,四川成都,610071 3. 成都信息工程学院高原大气与环境研究中心,四川成都,610225 |
| 摘 要： | 利用射洪县近30年来的气温、降水、相对湿度、云量、日照时数等气象要素资料,应用多种统计方法分析了近30年来射洪县的区域气候特征.结果表明,射洪年平均温度在1986年左右发生转折性变化,气温明显变暖.而年降水量总体上以波动变化为主,在20世纪80年代中后期有较为明显的减少.降水量与年平均温度的突变年代类似,但变化趋势正好相反,说明90年代以后射洪的气候向暖干型转变.各气象要素的综合分析表明,随着全球气候变暖,射洪区域气候变化趋势不容乐观:相对湿度的减少导致降水减少,而温度则在进一步上升,低云量的增加和日照时数的减少,使得阴天寡照加剧.射洪区域气候变化与当地诸如人口增长,城市扩大等人类活动,以及农业生态之间均存在密切联系. |
| 关 键 词： | 温度 降水 气候特征 气候突变 人类活动 射洪县 区域 气候特征分析 features 密切联系 存在 生态 农业 人类活动 城市 人口增长 气候变化趋势 寡照 阴天 低云量 温度 全球气候变暖 分析表 综合 气象要素 |
| 文章编号： | 1671-1742（2007）03-0360-05 |
| 收稿时间： | 2006-11-15 |
| 修稿时间： | 2006-11-152006-12-15 |
Regional climatic features of Shehong County within 30 years |
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| LEI Jun,FANG Zhi-fang,QU Xing,ZHANG Jie.Regional climatic features of Shehong County within 30 years[J].Journal of Chengdu University of Information Technology,2007,22(3):360-364. | |
| Authors: | LEI Jun FANG Zhi-fang QU Xing ZHANG Jie |
| Institution: | 1. Center for Plateau Atmospheric and Environmental Research, CUIT, Chengdu, 610225, China; 2. Zhejiang Meteorological Bureau, Hangzhou, 310002, China;3. Institute of Plateau Meteorology, CMA, Chengdu, 610071, China |
| Abstract: | The climatic features of Shehong County between 1971 and 2000 are analyzed using the meteorological factors.Studies show that the increase tendency of the yearly mean temperature becomes more evident after a climate shift in 1986.In terms of the rainfall over Shehong County it shows oscillation.But an obvious decrease is shown after 1980s' middle.The yearly mean temperature and yearly rainfall amount have a contrary tendency at the same time when a climate shift happens.It shows that the climate of Shehong County has transformed to the warm-drought pattern.Based on the meteorological factors the results are as follows: rainfall decreases as the relative humidity reduces meanwhile the air temperature rises remarkably.Low-cloudage amount moves up while sunlight hour cuts down.The regional climatic change of Shehong County has a close relation with the human activities such as population rise,city area expansion and agricultural development. |
| Keywords: | temperature rainfall climatic feature climate shift human activity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |