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安庆市位于安徽省的西南部,现有耕地27.3万公顷,是以粮、油、棉为主的农产区。由于受独特的地理位置和气候条件影响,水稻生产常受洪涝等多种自然灾害。仅1991～1999年的9年中,便有5年发生不同程度的涝灾,一般年减收稻谷10～20万吨,减产5％～10％。因此,洪涝灾害是水稻生产的主要灾害,严重制约了水稻产量的提高。一、洪涝灾害发生的原因 1.气候条件安庆市属亚热带季风性气候,常年降水量为1300mm左右,但年际间起伏较大,最多的
Anqing is located in the southwest of Anhui Province. It has 273,000 hectares of arable land and is an agro-producing area dominated by grain, oil and cotton. Due to its unique geographical location and climatic conditions, rice production is subject to many natural disasters such as floods. In the nine years 1991-1999 alone, floods of varying degrees were carried out in five years. Generally, the annual paddy output was reduced from 10 to 200,000 tons and the yield was reduced by 5% to 10%. Therefore, flood disasters are the major disasters of rice production, seriously restricting the increase of rice yield. First, the causes of flood disaster 1. Climate conditions Anqing subtropical monsoon climate, annual precipitation is about 1300mm, but the ups and downs during the year, the largest