Study on the Meteorological Risk Assessment of Double Cropping Rice in Jiangxi Province
Bai Guangzhi;Kong Ping;Yu Yanwen;Liu Shoudong;Yang Zaiqiang;Jiangsu Key Laboratory of Agricultural Meteorology,NUIST;Jiangxi Province Climate Center;
Basing on GIS technology, the 1956-2012 climate data of 14 representative stations in Jiangxi province were analyzed.According to the requirement of climate conditions on double cropping rice growth in Jiangxi, risk assessment of the three main agricultural meteorological disaster indexes(grain buds cold, high temperature disaster, cold dew wind) were carried out. The results showed that the early rice was mainly affected by the grain buds cold disaster and high temperature disaster, while late rice was mainly affected by the cold dew wind. The meteorological disaster high risk zone of grain buds cold mainly includes Xiushui,Yichun, Jingdezhen, Yushan and Guangchang etc., the high temperature disasters high risk area mainly include Ganzhou,Suichuan, Guangchang, Ji′ an, Guixi, Yushan and Xiushui etc., and the high risk region of cold dew wind disasters includes Xiushui and Yichun. The moderate meteorological disasters risk zone of early rice located in plain and basin, and the severe level of risk zone can be distributed in hilly mountain areas. Late rice meteorological disasters severe risk area mainly located in the southwest of Jiangxi province.