江西省中稻动态气候生产潜力研究

根据江西省气象站1961～2007年气象资料,应用FAO推荐的计算气候生产潜力的方法,分析了该时间段中稻气候生产潜力变化趋势。结果显示,江西省光合、光温生产潜力变化呈逐年减少趋势。气候生产潜力变化波动较大。产生上述变化的主要原因是由于近年来空气污染较为严重,导致光照减少,光合生产潜力下降;极端高温天气增多,抑制了中稻的生长;降水的分布不均造成了气候生产潜力的波动较大。针对这些问题,要保证稳产高产,采取的应对措施是大力加强人工影响天气的投入力度,兴修水利设施;加强天气预报的准确性;加强气候变化的研究;以此保证水稻生产应对气候变化的能力提高。

Research on the Dynamic Climate Production Potential of Middle-season Rice in Jiangxi Province

According to the meteorological data from Meteorological Station during 1961-2007 in Jiangxi Province,using FAO recommended calculation method of production potential of climate,the production potential climate trends of mid-season rice during this time period were analyzed.The results showed that photosynthesis,light and temperature changed in production potential of Jiangxi into a decreasing trend.The production potential of climate changed greatly.The main reasons for the above-mentioned changes in recent years included more serious air pollution,resulting in less light,affecting photosynthesis decline in production potential.The temperature gradually increased,which inhibited the mid-season rice production.The uneven distribution of precipitation resulted in the production potential of volatile weather.To ensure high and stable yield,some measures should be taken,including intensifying efforts to weather inputs,building water conservancy facilities,enhancing the accuracy of weather forecasts,strengthening climate change research.All of methods can solve those problems in order to ensure rice production capacity to address climate change.