松嫩风蚀区水质状况与苏打盐渍化土壤的形成

文章涉及区位于黑龙江省西部半干旱地区。通过地面水质分析,以发源于山区植被复盖率(70%以上)高的江河水质最好适于人畜饮用等的需要,而区内安肇与肇兰新河及其滞洪区水质不能用于人畜饮用与生态建设,但改变了区内自然封闭状态;为发展灌溉、防治土壤盐渍创造了环境条件。对浅层、中层、深层地下水质分析,深层地下水含有高的NaHCO3参与了区内苏打盐渍化土壤的形成,这一发现,对利用改良苏打盐渍化土壤提出了理论依据。

The area concerned in this paper is located in the semi-arid area in the west of Heilongjiang Province. Through sur-face water quality analysis the water quality of rivers with high vegetation coverage （more than 70%） in mountainous areas is the bestfor human and animal drinking while the water quality of Anzhao and Zhaolanxin rivers and their flood detention areas can not beused for human and animal drinking and ecological construction. But it changed the natural closed state of the area and created theenvironmental conditions for the development of irrigation and prevention of soil salinity. Based on the analysis of shallow, middleand deep groundwater quality, it is found that the deep groundwater with high NaHCO3 is involved in the formation of soda salinizedsoil in this area. This finding providesa theoretical basis for the improvement of soda salinized soil.