| 青海省海东市1961-2015年气温变化趋势和演变特征 |
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| 引用本文： | (裴玉芳.青海省海东市1961-2015年气温变化趋势和演变特征[J].农学学报,2018,8(7). |
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| 作者姓名： | (裴玉芳 |
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| 作者单位： | 青海省海东市民和县气象局 |
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| 基金项目： | 青海省海东市气象局“海东市不同等级降水变化特征及其与干旱关系分析研究”；青海省防灾减灾重点实验室“青海省冬小麦发育期及产 量精准化预报”；青海省气象局面上项目(201708)。 |
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| 摘 要： | 为了研究近55年来青海省海东市气温变化的特点及其规律,利用海东市5气象站1961-2015年的气温资料,使用线性趋势、Mann-Kendall突变检验和累积距平法等方法进行分析研究。结果表明：55年来海东市年平均气温、最高气温和最低气温呈极显著的增温趋势,年际增长率分别为0.33℃/10a、0.33℃/10a和0.43℃/10a,从年代际变化来看,平均气温和最低气温(最高气温)在20世纪90年代到21世纪00年代(80年代到90年代)增暖趋势明显；四季平均气温、最高气温和最低气温均呈显著的增温趋势,存在着非对称性变化的特点,以最低气温增温更明显,冬季增温对年平均气温增高贡献最大,三者增温的强弱在时间和空间上均表现出不一致性；海东市年平均气温20世纪90年代中后期的增暖是一突变现象,突变开始的具体时间是1996-1997年,最高气温于1993年发生了突变。
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| 关 键 词： | 沼肥 沼肥 玉米 土壤化学性质 效益 产量 |
| 收稿时间： | 2017/3/10 0:00:00 |
| 修稿时间： | 2017/6/23 0:00:00 |
Temperature in Haidong, Qinghai: Variation Trends and Evolution Characteristics During 1961-2015 |
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| Abstract: | The paper aims to study the characteristics and rules of temperature change in Haidong, Qinghai in 1961-2015. The authors studied monthly temperature data during the 55 years from 5 weather stations in Haidong by using linear trend, Mann Kendall mutation test and accumulative anomaly analysis and so on. The results showed that: the annual average temperature, maximum temperature and minimum temperature had an evident warming trend, their annual growth rates were 0.33℃/10 a, 0.33℃/10 a and 0.43℃/10 a, respectively; from the point of decadal variability, the warming trend of average temperature and minimum temperature (maximum temperature) after 1990 (1980s to 1990s) was obvious; the average temperature, maximum temperature and minimum temperature of the four seasons had an evident warming trend with asymmetrical change characteristics, however, the minimum temperature had the most apparent warming trend, and warming in winter had the largest contribution to the increase of annual average temperature, the strength of warming of the average temperature, maximum temperature and minimum temperature in time and space showed
inconsistency; the annual average temperature had mutations from 1996 to 1997, while the maximum temperature had a mutation in 1993. |
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| Keywords: | Temperature change maximum temperature minimum temperature mutation test |
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