气象因子对湟源种植区蚕豆产量的影响

Effects of Meteorological Factors on Yield of Broad Bean in Huangyuan Planting Area

为研究各气象因子对蚕豆年度产量的影响程度,利用1986—2007年、2010—2016年湟源县农业气象观测站蚕豆观测地段产量资料和湟源县气象站的气象资料,分析了各气象因子与蚕豆产量的相关性。结果表明,各种气象因子影响产量波动从大到小依次是6—8月累计降水量、≥0℃积温、气温日较差、累计日照时数、日平均地温、日平均气温、日平均空气相对湿度。5—8月累计降水量与产量的相关系数为0.4770,达到极显著水平;偏相关系数为0.4460,达到极显著水平。5—8月累计降水量对产量有最大的直接正相关(0.4780),可导致蚕豆年度间产量波动幅度为33.2%。

In order to study the influence of meteorological factors on the annual yield of broad bean,the correlation between meteorological factors and yield of broad bean was analyzed based on the yield data of the observation area of Huangyuan Agrometeorological Observatory and the meteorological data of Huangyuan Meteorological Station from 1986 to 2007 and 2010 to 2016.The results showed that the order of different meteorological factors was as follows:cumulative precipitation in June-August,≥0 ℃ cumulative temperature,daily temperature difference,cumulative sunshine hours,daily average ground temperature,daily average temperature and daily average air relative humidity.The correlation coefficient between cumulative precipitation from May to August and yield was 0.477 0,reaching a very significant level,and the partial correlation coefficient was 0.446 0,reaching a very significant level.The cumulative precipitation from May to August had the greatest direct positive correlation with yield(0.478 0),which could lead to the fluctuation range of broad bean annual yield of 33.2%.