致灾气象因子对崂山茶叶产量年景的影响

Effect of Disaster-causing Meteorological Factors on Year's Harvest of Laoshan Tea Yield

为了确定崂山茶叶致灾的农业气象指标,把崂山茶叶多年产量资料分为"歉年"与"非歉年"2种年景,利用SPSS22.0统计分析系统,首先选取影响显著的气象因子,再进行二元logistic回归分析确定主要影响因子。结果表明,冬季日最低气温连续2 d低于-10℃是崂山茶叶遭受冻害的主要农业气象指标,低温冻害是崂山茶叶减产和品质下降的主要气象灾害。

In order to determine the agrometeorological indicators of tea disasters in Laoshan Mountain,the multi-year yield data of Laoshan tea were divided into apologetic year and non-apologetic year.Using SPSS22.0 statistical analysis system,the meteorological factors with significant impacts were selected first,and then the main influencing factors were determined by binary logistic regression analysis.The results showed that the main agrometeorological index of Laoshan tea freezing injury was that the daily minimum temperature was lower than-10℃for two consecutive days in winter,and low temperature freezing injury was the main meteorological disaster of Laoshan tea yield reduction and quality decline.