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砀山盐碱土改良基点,于1964年6月选择在权集公社的周庄大队.该大队位于砀山县东北,黄河故道南堤之下,是黄河故道高滩地与平原之间的交接洼地.由于地势低平,且受黄河故道高滩地的静水压力影响,地下径流不畅,地下水常年处于临界深度以内,矿化度约在1—3克/升之间.在春、秋干旱季节,地下水大量蒸发,盐分上升,在微域地形高低不平的条件下,形成大面积呈花斑状分布的盐碱地.据1964年统计,全大队轻重盐碱地约占总耕地面积的70%,盐碱地的主要
Dangshan saline-alkali soil improvement base, in June 1964 choose right to commune Zhouzhuang brigade located in northeastern Dangshan County, the Yellow River south bank of the embankment, is the old course of the Yellow River high ground and the transition between the depression due to the low topography And is affected by the hydrostatic pressure of the high beach of the Yellow River, the underground runoff is poor, and the groundwater is always within the critical depth and the salinity ranges from about 1 to 3 g / L. In spring and autumn, groundwater evaporates in a large amount, According to the statistics of 1964, the light and heavy saline-alkali lands of the whole brigade account for about 70% of the total cultivated land area, and the major components of saline-alkali land