Change Characteristics of Heat Condition and Its Response to Temperature in Fengxian from 1959 to 2013
Abstract: Through analyzing the variation characteristics of temperature, accumulated temperature and the accumulated temperature response to temperature change by the temperature in Fengxian from 1959 to 2013, the results show that: The year average temperature is 15.9˚C and the temperature increase rate is 0.24˚C/10a, the mutation year is 1995. The accumulated temperature of summer crops growth period is 1322.5˚C•d. The accumulated temperature of autumn crops growth period is 2170.2˚C•d and the annual accumulated temperature is 2170.2˚C•d. The accumulated temperature at least in 1970 s and 1980 s, the accumulated temperature at most in 2000s and 2010s. The temperature of the highest frequency oscillation period is 3a and the higher frequency oscillation periods are 5.5 - 6a and 9 - 11a. The interannual and interdecadal changes and EMD trend showed increasing trend. The mutation years of the three kinds accumulated temperature are 2003, 1993 and 1998. The accumulated temperature of autumn crops growth period accounted for the annual accumulated temperature is mostly 60% to 64%. The ratio was significantly correlated with the year average temperature and the average temperature in spring. The accumulated temperature of summer crops growth period increased with the increase of the year average temperature. The accumulated temperature of autumn crops growth period increased with the increase of the year average temperature while the year average temperature was less than 16˚C, but the accumulated temperature of autumn crops growth period fluctuation at 2100 - 2350˚C∙d while the year average temperature was more than 16˚C.
文章引用: 徐相明 , 徐 佳 , 顾品强 (2016) 奉贤地区1959~2013年热量条件变化特征及对气温的响应。 自然科学， 4， 123-131. doi: 10.12677/OJNS.2016.42015
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