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1 黄淮海地区简介 黄淮海平原是包括冀、鲁、苏、皖、京、津七省市平原地区,人口密集,工农业发达,是我国粮棉重要生产基地。但农业发展受制约的因子很多,历史上旱、涝、盐、碱、风沙等灾害时有发生,交错危害农业经济发展。要发展本地区经济,必须提高农业产量,必须采取保护,改造,建设三个步骤,逐步重新建立合理的农业结构,以促进该地区的经济发展。 从国内外的多种文献,试验来看,大力发
1 Huang-Huai-Hai District Introduction The Huang-Huai-Hai Plain consists of the plains of seven provinces and municipalities of Hebei, Shandong, Jiangsu, Anhui, Beijing and Tianjin. The population is densely populated and the industry and agriculture are developed. It is an important production base for grain and cotton in China. However, there are many factors that restrict the development of agriculture. Historically, disasters such as drought, floods, salt, alkali and wind-blown sand occur from time to time, staggering the development of agricultural economy. In order to develop the economy in this area, it is imperative to raise the agricultural output. We must take the three steps of protection, reform and construction and gradually re-establish a reasonable agricultural structure so as to promote the economic development in the region. From a variety of domestic and foreign literature, test point of view, vigorously hair