沈阳东陵区农业降水满意程度及旱涝评价

应用积分湿度指标（I值）和湿润指数（K）评价沈阳东陵区自然降水对农业需水的满意程度。结果表明,50%以上的年份农作物全生育期内自然降水量的满意程度达100%,87.9%的年份自然降水量的满意程度为80%,12.1%的年份自然降水量不满意。春季重旱年份占24.1%,缺水量约40 mm;夏季中涝程度以上年份占8.6%,降水量盈余约100 mm;秋季降水变率较大,旱、涝均有发生,重旱以上年份占13.8%,中涝以上年份占5.1%,缺水量约16 mm。

Evaluation on Agricultural Precipitation Satisfaction Degree and Drought-flood in Donglin District of Shenyang

The satisfaction degree of natural precipitation to agricultural water demand in Dongling district of Shenyang was evaluated by applying integral humidity index(I value) and moisture index(K).The results indicated that the satisfaction degree of natural precipitation amount in whole growth period of crops reached 100% in more than 50% years and that was 80% in 87.9% years;the natural precipitation amount was not satisfying in 12.1% years.The years with heavy spring drought accounted for 24.1% and the water ...