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一.研究目的、意义图们江是中朝两国的界河,是两国沿江地区农田灌溉的主要水源,仅我国沿江地区用图们江水灌溉的土地面积就有三万二千七百余亩,分布在和龙县、延吉县、图们市境内二十六个大队。随着两国沿江工业生产的发展,图们江水受到了严重污染。这对两国人民的健康和农业生产造成严重的影响。因此,我们于一九七八年至一九八○年连续三年进行了尾矿砂污染对农田土壤水稻生产的危害研究,初步探讨了随灌溉水带进的尾矿砂累积对稻田
I. Purpose and Significance of the Study The Tumen River is the border river between China and the DPRK and the main water source for farmland irrigation in the rivers of the two countries. Only the area of land irrigated by the Tumen River in the riverside areas of our two countries is more than 32,700 mu , Located in Heilong County, Yanji County, Tumen City, twenty-six brigades. With the development of industrial production along the two countries, the Tumen River has been seriously polluted. This has a serious impact on the health and agricultural production of the two peoples. Therefore, we conducted a study on the hazards of tailing sand pollution to farmland paddy rice production for three consecutive years from 1978 to 1980, and discussed the effects of tailing sand accumulation brought by irrigation water on paddy fields