Analysis on Growing Meteorological Conditions and the Best Viewing Period of Tancheng Ginkgo
Using phenology observation data of Tancheng ginkgo during 1982-1993,2012-2014,the growing meteorological conditions of Tancheng ginkgo and the characteristics of the best viewing period were analyzed.The results show that:Tancheng temperature,ground temperature and light conditions are suitable for the growth and development of ginkgo;5-10 monthly precipitation and relative humidity conditions are also suitable for the growth and development of ginkgo,but monthly extreme maximum temperature of 5-10 months are all higher than 28,so attention should be paid to the high temperature during cultivation.The average start time of the best viewing period of Tancheng ginkgo is October 13-14,the earliest time is October 7th,and the latest time is October 19th.The average duration of the best viewing period of Tancheng ginkgo is 17 days,the longest is 26 days,the shortest is 8 days.The start time is significantly correlated with the duration at 0.0.1 level,the correlation coefficient is-0.719.The correlation between start time and previous daily average temperature,total precipitation,total sunshine hours and other long-term cumulative effect data of meteorological elements is not obvious;The start time is significant negatively correlated with daily average temperature,average diurnal temperature,precipitation of last week and other short-term effect data of meteorological elements,related direction is negative correlation.The correlation between the duration and previous total precipitation,total sunshine hours and other long-term cumulative effect data of meteorological elements is not obvious;The duration is significant positively correlated with previous daily average temperature,short-term daily average temperature of last week and average diurnal temperature;The duration is significant positively correlated with precipitation of last week and sunshine hours during the best viewing period.