| 1960-2017年长武县气候变化特征分析 |
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| 引用本文： | 郭勇.1960-2017年长武县气候变化特征分析[J].现代农业科技,2024(8). |
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| 作者姓名： | 郭勇 |
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| 作者单位： | 甘肃省武威二中 |
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| 摘 要： | 通过利用长武县气象局1960-2017年近58a降水和气温的观测数据,运用线性回归、滑动平均、Mann-Kendall突变检验等研究方法,初步研究了长武县近58a来气温和降水变化特征。结果显示：(1)在1960-2017年58a间,长武县年均温明显升高,增长速率为0.18℃/10a,并在2004年发生趋势性突变,最冷月、最热月的平均气温都显著上升,分别以0.13℃/10a和0.06℃/10a的速率在增暖。(2)在1960-2017年58a间,长武县年降水量明显下降,下降速率为4.31mm/10a,未发生趋势性突变,汛期降水量整体呈波动上升趋势,上升速率为3.65mm/10a,汛期降水量很大,约占年降水量的82%。
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| 关 键 词： | 降水 气温 变化特征 长武县 |
| 收稿时间： | 2023/8/28 0:00:00 |
| 修稿时间： | 2023/8/28 0:00:00 |
Analysis on the Characteristics of Climate Change in Changwu County from 1960 to 2017 |
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| Abstract: | Based on the observational data of precipitation and temperature from 1960 to 2017 in Changwu County Meteorological Bureau, the characteristics of temperature and precipitation in recent 58 years in Changwu County were studied by using linear regression, moving average and Mann-Kendall mutation test. The results showed that: (1) during the period of 58 years from 1960 to 2017, the average annual temperature in Changwu County rose significantly, with a growth rate of 0.18 °c/10 A, and a trend mutation occurred in 2004. The mean temperature of the coldest month and the hottest month increased significantly, at the rates of 0.13 °c/10 A and 0.06 °c/10 A, respectively. (2) during the period from 1960 to 2017, the annual precipitation in Changwu County decreased obviously, the rate of decrease was 4.31 mm/10 A, and there was no trend mutation. The precipitation in flood season generally fluctuated upward, the rate of increase was 3.65 mm/10 A, and the precipitation in flood season was very large, about 82% of the annual precipitation. |
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| Keywords: | Precipitation Temperature Variation characteristics Changwu |
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