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| DOI：10.13522/j.cnki.ggps. 2022227 |
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| Characteristics of Precipitation, Air Temperature and Evaporation in Youyu, Shanxi During 1960—2019 |
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XIE Jianqiang, CAI Xia, NING Songrui, CAI Lin, SUN Xiwang
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1. Shuozhou Meteorological Bureau, Shuozhou 036002, China; 2. State Key Laboratory of Ecological Water Conservancy in
Northwest arid Areas Jointly Built by the Ministry and the Province of Xi’an University of Technology, Xi’an 710048, China;
3. Heze Shangdong University, Heze 274000, China; 4. Xinjiang Shuilvfang Project Management Co., Ltd, Urumqi 830000, China
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| Abstract: |
| 【Objective】To study the change rules of precipitation, air temperature and evaporation in Youyu County under the background of climate change, so as to rationally use climate resources and efficiently use precipitation resources.【Method】The monthly precipitation, temperature and evaporation in Youyu County from 1960 to 2019 were systematically analyzed by using anomaly analysis method, linear trend estimation method and Mann-Kendall test method. 【Result】 Precipitation increased, air temperature increased and evaporation decreased in Youyu County. According to the Mann-Kendall mutation test and the sliding T test, the year 1994 was the abrupt change point of the rising temperature series, while the year 2002 was the abrupt change point of the decreasing evaporation series.【Conclusion】The research results can provide scientific reference for agricultural irrigation, ecological environment improvement and so on. |
| Key words: Youyu County; precipitation; temperature; evaporation; mutation; wavelet |
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