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安徽省地处淮河中游、长江下游。境内淮河流域面积66900平方公里,约占全省面积的一半,耕地占全省耕地面积的68%,人口占全省59%,淮河的兴衰在全省占有举足轻重之势。淮河流域属南北气候交接地带,年内及年际雨量分布不均匀,容易形成洪、涝、旱、渍等自然灾害。据资料记载:新中国成立前的500年间,淮北地区有水灾211次,江淮之间水灾135次,平均2～
Anhui Province is located in the middle reaches of the Huaihe River, the lower reaches of the Yangtze River. The territory of the Huaihe River basin covers an area of 66,900 square kilometers, accounting for about half of the total area of the province. Cultivated land accounts for 68% of the total arable land in the province and its population accounts for 59% of the province. The rise and decline of the Huaihe River occupies a pivotal position in the province. The Huaihe River Basin belongs to the climate transfer area between the north and the south. The distribution of rainfall during the year and the year is uneven, and natural disasters such as floods, floods, droughts and stains are easy to form. According to the data recorded: 500 years before the founding of New China, there were 211 floods in Huaibei area and 135 floods between JAC stations, with an average of 2 ~