摘要
本文利用1957—2019年沁水县气温、降水等气象资料,基于气候统计原理,对沁水县气候变化趋势及其对农业生产的影响进行了分析。结果表明:1957—2019年沁水县气温上升趋势明显,气候倾向率为0.10℃/10 a;气温年代际变化显著,21世纪后气温明显上升;春、冬季增温尤其明显,夏季气温降低;≥0℃积温增加18℃/10 a,粮食作物春播期提前,秋播期推迟,作物生长期延长;冬、春季热量资源增加,有利于冬小麦生长,春季小麦返青、果树萌动等发育期提前;年降水量波动较大,且呈下降趋势,降水量的减少主要集中在春季和秋季,夏季降水略有增加,冬季降水变化不明显,作物生长期内降水明显减少,干旱发生频率增加;气候变化对沁水县作物生长、产量等均有一定的影响。
This paper used meteorological data such as temperature,precipitation etc.in Qinshui County from 1957 to 2019,analyzed the climate change trend in Qinshui County and its impact on agricultural production based on the principle of climate statistics.The results showed that the temperature in Qinshui County had an obvious rising trend from 1957 to 2019,with a climate tendency rate of 0.10℃/10 a;the inter-decadal temperature changed significantly,and the temperature rose significantly after the 21st century;the temperature increase was particularly obvious in spring and winter,and the temperature in summer decreased;≥0℃accumulated temperature increased by 18℃/10 a,the spring sowing date of grain crops was advanced,the autumn sowing date was delayed,and the crop growth period was prolonged;the increase of heat resources in winter and spring was conducive to the growth of winter wheat,and the development period of spring wheat turning green and fruit tree germination was advanced;annual precipitation fluctuated greatly and showed a downward trend.The decrease of precipitation was mainly concentrated in spring and autumn.Summer precipitation increased slightly,but winter precipitation changes were not obvious.During crop growth,precipitation decreased significantly,and the frequency of droughts increased.Climate change had definite impacts on crop growth and output in Qinshui County.
作者
李亚军
张燕
LI Yajun;ZHANG Yan(Shanxi Provincial Meteorological Information Center,Taiyuan Shanxi 030006;Qinshui County Meteorological Bureau,Qinshui Shanxi 048200)
出处
《现代农业科技》
2022年第2期155-160,共6页
Modern Agricultural Science and Technology
基金
山西省科技厅重点研发项目“春季冻融对山西春季地质灾害(崩塌、滑坡)的影响研究”(201803D31219)。
