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河南省商丘地区处于黄淮海平原,受季风气候和黄河历史时期泛滥的影响,早涝盐碱风沙灾害严重,是河南省最困难的一个地区。三中全会以来,政策加科学,基本解决了农村吃饭和花钱难的问题。这组图片表现在古黄河大堤下的背河洼地旱涝盐碱综合治理的情况。黄河背河洼地比滩地低8—10米,受黄河滩地侧渗补给及地下水顶托补给,地下水位高,涝湆盐碱严重,采取挖沟、打井截渗、减压,降低地
The Shangqiu area of Henan Province is located in the Huang-Huai-Hai Plain. Affected by the monsoon climate and the flooding of the Yellow River during its historical period, the saline-alkali-wind and sandstorms have had serious disasters and are the most difficult areas in Henan Province. Since the Third Plenary Session, the policy and science have basically solved the problem of eating and spending money in the rural areas. This set of pictures shows the droughts and floods in the Yellow River embankment depression comprehensive treatment of saline-alkali conditions. The Yellow River backwater depressions 8-8 meters lower than the beach, by the Yellow River floods infiltration recharge and groundwater recharge, groundwater level is high, waterlogging serious saline, trenching, drilling wells cut seepage, decompression, reduced to