江宁县位于江苏省西南部,紧靠南京市区南边。全县土地总面积170平方公里,(255.9万亩),其中丘陵山地180万亩,平原75万多亩。可耕地101.3万亩,其中水稻78万多亩,三麦50万亩。常年平均气温15.5℃,最冷月2.3℃,最热月28℃,无霜期224天。属宁镇扬丘陵稻麦地区。农田害鼠主要有褐家鼠、黑线姬鼠两种,偶见小家鼠和黄胸鼠,鼠形小兽有灰麝鼩和大麝鼩。鼠害高峰年为1985年和1986年。1985年农田和农舍 Jiangning County is located in the southwest of Jiangsu Province, close to the south of downtown Nanjing. The total land area of ​​170 square kilometers, (255.9 million mu), of which 1.8 million mu of hilly mountains, 750,000 mu of plains. 1,031,000 mu of arable land, of which 780,000 mu of rice and 500,000 mu of San Mai. The average annual temperature of 15.5 ℃, the coldest month 2.3 ℃, the hottest month 28 ℃, 224 days frost-free period. Ningyang Yangling rice and wheat area. Rodents mainly farmland Rattus norvegicus, Apodemus two linear, occasionally Mus musculus and Rattus flavipectus, mouse-like small musk deer and musk deer. Rodent pests peaked in 1985 and 1986. 1985 farmland and farmhouse