关键词: 酶活性, 酶活性

Abstract: Based on the meteorological data during the period of 1961-2013 from 79 weather stations in Jiangxi, the characteristics of high-temperature forced maturity disaster in Jiangxi province were analyzed. The results showed that, the disaster occurred on distinct extend in 92% years during the 53 years. The linear trend of the number of disaster stations was not significant in the whole 53 years, while it advanced significantly from 1992-2013. For different decades, the disaster station number showed “high-low-high-low” change trend from 1960s to 1990s, which was increased greatly during 2001-2013, the annually station number up to 60.2 .The disaster station number had variations in inter-annual scale with 6-8 a, and in inter-decade scale with 24a period. The high frequency period of the light disaster were 1-10th July in Northern and central Jiangxi, and were 23th June to 10th July in Southern Jiangxi. The high frequency area of disaster expended obviously and the low frequency area shrunk obviously during 2001-2013, and the disaster frequency increased from 1 time /10a to 7.7 time/10a.