论文部分内容阅读
大洼县位于辽河下游,渤海之滨。地理位置北纬40—41度,东径121—122度之间,总面积为一千四百四十一平方公里,土地辽阔,地势平坦,土壤为滨海盐碱土,气候变化受海洋影响,属沿海季风气候型,平均年降雨量为636.9毫米,70%集中在6月—9月。热量资源比较丰富,平均无霜期175天,全年高于10度的活动积温为3,355.9度,居全省前列,适于种植水稻。解放以来,在党和国家的支持下,兴建和改建了水利工程,采取了以水肥改土
Dawa County is located in the lower reaches of Liaohe, Bohai Sea coast. Geographic location 40-41 degrees north latitude and 121-122 degrees east longitude, with a total area of 1,441 square kilometers, the vast land, flat terrain, the soil is coastal saline soil, climate change affected by the ocean, is a coastal Monsoon climate, the average annual rainfall of 636.9 mm, 70% concentrated in June-September. The heat resources are rich, with an average frost-free period of 175 days. The annual accumulated temperature above 10 degrees was 3,355.9 degrees, ranking the forefront of the province and suitable for growing rice. Since the liberation, with the support of the party and the state, the construction and reconstruction of water conservancy projects have taken water and fertilizer to soil