1962年冬到1963年春,宁波地区遇到历史上少有的干旱。根据宁波气象台记录,从1962年11月1日到1963年4月17日,总降雨量只有171毫米,而同期的蒸发量却高达566毫米。因此,很多地方的山塘水库,大部干涸,河港水位下降,海水倒灌,河水含盐量逐渐增加。开春以后,由于水稻播种育秧期的紧逼,一部分近海沿江地区,无法获得淡水灌溉,引灌咸 From 1962 to the spring of 1963, Ningbo experienced a rare drought in history. According to the Ningbo Meteorological Observatory, from November 1, 1962 to April 17, 1963, the total rainfall was only 171 millimeters, while the evaporation over the same period was as high as 566 millimeters. Therefore, in many parts of the Shantang Reservoir, most of them dried up, the water level of rivers and lakes was reduced, and the sea water was intruded into the river. The salinity of the water gradually increased. After the spring, due to tight planting of rice seedling, some coastal areas along the Yangtze River, can not get fresh water irrigation, irrigation diversion