哈密市近30a家燕停留时间与气象因子的关系

通过对哈密气象站1980-2008年家燕物候资料和气象资料的分析，得出当地家燕物候变化规律及停留时间与气象因子的关系。结果表明：（1）家燕始见日期均在4月，其中4月中旬较多，平均日期为4月16日，绝见日期均在9月且集中于中旬，平均日期为9月16日；（2）家燕停留期为4—9月，平均停留153d；（3）停留期与同期≥0℃积温和日照时数均呈显著的正相关关系，而随降水量的变化在不同时段呈现或同向或反向的趋势；（4）≥0℃积温和日照时数均为增加趋势，总体上家燕停留期变化与二者变化趋势一致，但近6a停留期缩短。

Relationship between the Settling Stage of Swallow and Meteorological Factor during 1980-2008 in Hami

The phonological variation of swallow and the relationship between the settling stage and meteorological factor in Hami arc studied by analyzing the phonological data of swallow and meteorological datas from 1980 to 2008. It is shown that：（1）the first seen date is all in April, with the average date of April 16th,the last seen date is all in September, with the average date of September 16th .（2）the settling stage is from April to September, the average time is 153 days.（3） there is obviously positive correlationship between accumulation temperature and the settling dates, auumulation so as sunshine duration and the settling dates, but it is different and complicate between precipitation and the settling dates. （4）there is a lengthening tendency of accumulation temperature and sunshine duration, as well as the settling dates, but it gets shorter in recent 6 years.