摘要
水是人类生存发展的重要条件。特别是农业生产,农作物的生长离不开正常的水分供应。自然降水和灌溉水是农业水分的主要来源,灌溉水也主要来源于自然降水。同时,降水的多少又会导致旱涝灾害。因此,研究许昌市降水资源、防御旱涝灾害具有重要的现实意义。
Water is an important condition for human survival and development. Especially agricultural production, crop growth is inseparable from the normal water supply. Natural precipitation and irrigation water is the main source of agricultural water; irrigation water is mainly derived from natural precipitation. Also, how much precipitation will lead to droughts and floods? Therefore, studying the city precipitation, drought and flood prevention has important practical significance.
出处
《农学学报》
2011年第A02期20-23,共4页
Journal of Agriculture
关键词
降水资源
降水分布
降水变化
Rainfall resource
Precipitation distribution
Change of precipitation
