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根据已有的文献资料,将熊毅在黄淮海治理土壤盐渍化的研究分成三个时期,第一是在黄淮海平原出现大规模土壤次生盐渍化之前,熊毅通过华北平原(土壤)调查,已经明确指出灌溉与排水要同时考虑,在低平地区,地下水矿化度高,没有排水设施不能漫灌;第二是引黄灌溉后,黄淮海平原出现大面积的土壤次生盐渍化时,熊毅建议停止引黄灌溉,控制了土壤盐渍化的扩大,同时应用“井灌井排”和“沟排”技术,降低地下水位,防止了土壤次生盐渍化;第三是用生态学观点系统研究黄淮海平原的农业发展。
According to the existing literature, the study of Xiong Yi’s treatment of soil salinization in the Huang-Huai-Hai region is divided into three periods. The first is that before the large-scale soil salinization in the Huang-Huai-Hai Plain, Xiong Yi passed the North China Plain ) Survey, it has been clearly pointed out that both irrigation and drainage should be considered at the same time. In the low-lying areas, groundwater is highly salinized and no drainage facilities can not be flooded. Second, after the Yellow River irrigation, a large area of soil secondary salinities Xiong Yi suggested to stop the irrigation of the Yellow River and to control the expansion of soil salinization. At the same time, the technology of “Well-well and well” and “Ditch row” should be applied to reduce the water table and prevent the secondary salinization of soil The third is to systematically study the agricultural development of the Huang-Huai-Hai Plain from ecological point of view.