兰州市和陇南市气候概况及温度降水变化趋势对比分析

本文通过对兰州市和陇南市1981—2019年温度降水资料变化趋势对比分析得出：两地各时段平均气温1981-1990年为相对偏冷期,1991-2000年为正常时期,2001-2019年为相对偏暖期；两地各时段平均降水量1981-1990年和2011-2019年均为明显的上升趋势,1991-2000年兰州为明显的上升趋势,武都为明显的下降趋势,2001-2010年均为明显的下降趋势；目前,两地年平均气温和年降水量均呈现出显著的上升趋势。研究结果对指导两地科学规划、周密部署防汛抗旱及农业生产、气象防灾减灾工作提供了科学依据。

A comparative analysis of climate and temperature and precipitation trends in Lanzhou and Longnan

By comparing and analyzing the variation trend of temperature and precipitation data in Lanzhou and Longnan from 1981 to 2019, this paper concludes that the average temperature in the two cities is relatively cold from 1981 to 1990, normal from 1991 to 2000, and relatively warm from 2001 to 2019. From 1981 to 1990 and from 2011 to 2019, the average precipitation of the two regions showed an obvious upward trend; from 1991 to 2000, it showed an obvious upward trend in Lanzhou; from 2001 to 2010, it showed an obvious downward trend in Wudu. At present, the average annual temperature and annual precipitation in both places show a significant upward trend. The results of this study provide a scientific basis for guiding the scientific planning, detailed deployment of flood control and drought relief, agricultural production, meteorological disaster prevention and mitigation.