论文部分内容阅读
怀远县地处准北平原,全县境内地形平坦。除有淮、堝、芡、澥等较大的河流东西纵穿分割外,其他山岗丘陵很少,构成一片沃野平原,土地约有1/2属于冲积土、水稻土和淋溶褐土,地势较高,结构良好,土壤肥美,各种农作物年产量均高。同时亦有1/2潜育褐土(即俗称黑土、砂姜土),又在其中有很大一部分洼湖地区,据普查有243,878亩,地本低洼,土质瘠薄,地下水位较高,仅1—2米深,加之年年七、八月汛期多雨,很多农作物有的被淹死,有的被欺苗,因此,各种农作物年产量不高,水灾略大的年头,往往是颗粒无收。为彻底改变低产地区的生产落后面貌,
Huaiyuan County is located in the quasi-North Plains, the territory of the county flat. In addition to Huai, crucible, 芡, 澥 and other larger rivers east and west longitudinal division, the other hills are few, constitute a wilderness plains, about 1/2 of the alluvial soil, paddy soil and leached cinnamon, High terrain, good structure, fertile soil, all kinds of crops are high annual yield. At the same time, there are also 1/2 latent cinnamon soil (commonly known as black soil and sand ginger soil) and a large part of them. According to the census, there are 243,878 mu of land, lowland, infertile soil and high underground water level, only 1-2 meters deep, combined with the rainy season in July and August every year, many crops are drowned, and some are bullied. Therefore, the annual output of various crops is not high, Close In order to completely change the backwardness of production in low-yielding areas,