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作 者:刘浩宇 LIU Haoyu(Xiantao Meteorological Bureau,Xiantao 433000,China)
机构地区:[1]仙桃市气象局,湖北仙桃433000
出 处:《黑龙江环境通报》2025年第3期37-39,共3页Heilongjiang Environmental Journal
摘 要:本文基于1974—2023年仙桃国家基本气象站观测数据,采用线性趋势分析、非参数统计检验等方法,分析了近50年来仙桃市气温、降水量的变化特征。结果表明,近50年来仙桃市年平均气温呈显著上升趋势,上升速率为0.18℃/10a;年降水量呈不显著下降趋势,下降速率为-15.74 mm/10a。气温和降水的年际变化存在一定的阶段性特点,20世纪90年代后变暖速率加快,降水减少趋势减缓。温室气体排放增加是气温上升的主要影响因素,而农业活动、城市化进程加剧了区域小气候环境的变化。本研究可为仙桃市应对气候变化、制定适应政策提供科学参考。Based on the observed data of meteorological station in Xiantao City from 1974 to 2023,this paper analyzes the change characteristics of temperature and precipitation in Xiantao City in the past 50 years by using linear trend analysis and non-parametric statistical test.In the past 50 years,the annual average temperature in Xiantao City has shown a significant upward trend,with an upward rate of 0.18°C/10a,while annual precipitation exhibited a non-significant downward trend at a rate of-15.74 mm/10a.The interannual variability of temperature and precipitation exhibits certain phase characteristics,with warming rates accelerating and precipitation reduction trends slowing down after the 1990s.The increase in greenhouse gas emissions is the primary factor contributing to temperature rise,while agricultural activities and urbanization have intensified changes in the regional microclimate environment.This study provides a scientific reference for Xiantao City to respond to climate change and formulate adaptation policies.
分 类 号:P467[天文地球—大气科学及气象学]
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