近10年汕尾市气候特征分析及对农业的影响

Analysis of Shanwei’s Cl-imate Characteristics and Its Impact on Agriculture in the Past 10 Years

利用2010—2020年日平均气温、日雨量、日照时数等气象要素数据对汕尾市气候变化特征进行分析,并根据分析结果探讨气候变化对农业生产的影响。结果表明:近10年来汕尾市平均温度整体呈上升趋势,升温速率为0.776℃/10 a,各个季节的年平均温度变化同年变化相符,均呈上升趋势;升温率最大的为冬季,春季、秋季次之,夏季增温最小。汕尾市降水量整体呈上升态势,降水量上升速率为174.47 mm/10 a;汕尾市的年平均日照时数总体表现为增加趋势,增加速率为11.767 h/10 a。此外,气候变暖对农业有重大影响,导致作物种植熟制不断朝北边移动,并影响农作物的生长发育和产量,还会导致农业病虫害发生,给作物的生长发育带来不良影响。

This paper analyzes the characteristics of climate change in Shanwei City by using the meteorological element data such as daily average temperature,daily rainfall,and sunshine hours from 2010 to 2020,and discusses the impact of climate change on agricultural production based on the analysis results.The results show that the average temperature in Shanwei City has generally increased in the past 10 years,with a heating rate of 0.776℃/10 a.The annual average temperature changes in each season are consistent with the year,and all show a rising trend;The highest heating rate is winter,followed by spring and autumn,and summer temperature increases the least.The change in precipitation in Shanwei City generally shows an increasing trend,with a precipitation rate of 174.47 mm/10 a;the annual average sunshine hours in Shanwei City generally shows an increasing trend,with an increase rate of 11.767 h/10 a.In addition,climate warming has a significant impact on agriculture.It causes crop planting and maturation to continue to move northward,and affects the growth and production of crops.It can also cause agricultural pests and diseases and adversely affect the growth and development of crops.