1现状1.1具有得天独厚的自然优势盐城市地处苏北平原,黄海之滨,全年气候温和湿润,雨量充沛,日照充足,年平均气温14～15℃,年平均降雨量940～1140mm,年平均日照时数2200～2350h,无霜期长达220d。受海洋气候影响,8月上、中旬气温相对稳定,日平均气温稳定在25℃以上。经国家“863”工程生物领域两系杂交水稻专家组认证,盐城 1 Status 1.1 Unique natural advantages Yancheng is located in the northern Jiangsu plain and the coast of the Yellow Sea. The climate is mild and humid throughout the year with abundant rainfall and abundant sunshine. The annual average temperature is 14-15 ℃ and the annual average rainfall is 940-1,140 mm. The annual average Sunshine hours 2200 ~ 2350h, frost-free period up to 220d. Affected by the marine climate, the temperature in mid-August was relatively stable and the average daily temperature was stable at above 25 ℃. The national “863 ” two-line hybrid rice expert in biological engineering field certification, Yancheng