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大洼县位于辽河的下游,水田耕种面积100万亩,水稻平均亩产600kg左右。年降水量为450～650mm,每年的降水主要集中在7、8月份,约占总降水量的60%以上,全年的降水分布极不均匀。水资源在本县十分缺乏,规律性的春旱、大风常常给水稻生产造成很大影响,干旱缺水已成为本县发展水稻生
Dawa County is located in the lower reaches of the Liaohe River, paddy field cultivation area of 1000000 mus, the average yield of about 600kg of rice. The annual precipitation is 450 ~ 650mm, annual precipitation is mainly concentrated in July and August, accounting for more than 60% of the total precipitation, the annual precipitation distribution is extremely uneven. The lack of water resources in the county, the regular spring drought, the wind often have a great impact on rice production, drought and water shortage has become the development of rice in this county