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南水北词是我国正在进行规划的一项巨大的调水工程。梁济运河是南水北调东线输水总干渠的一段。为研究输水干渠沿线地区调水后可能引起的土壤地下水水盐变化和次生盐渍化的影响,我们对梁济运河沿线及南四湖、东平湖以西地区,进行了土壤和地下水调查及水盐运动的定位观测研究。预测研究表明,调水工程的成败,关键是沿线地区一定范围和发展灌溉地区农业生态条件的变化优劣与上壤次生盐溃化的可能性。本文论述了区域水盐状况及土壤盐渍地球化学与水化学特征及其相关性,并对影响区域水盐运动的自然条件及人为因素进行了综合评价与分析。认为该区除局部地段受土壤盐渍化威胁外,大部分地区潜水埋藏较深,排水条件良好,土壤含盐量不大,但存在着潜在次生盐化和碱化的威胁。
North Water North is the ongoing planning of a huge water transfer project. The Liangji Canal is a section of the main water conveyance of the Eastern Route of the South-to-North Water Diversion Project. In order to study the possible influence of groundwater salinity and secondary salinization caused by water diversion along the main canal, we conducted soil and groundwater survey along the Liangji Canal along with Nansi Lake and west of Dongping Lake. Water and salt movement positioning observation research. Prediction studies show that the key to the success or failure of a water transfer project is the possibility of the change of agro-ecological conditions and the occurrence of secondary salinization of soil along a certain area along the irrigated area. This paper discusses the status of water and salt in the region, the geochemical and hydrochemical characteristics of soil salinities and their correlation, and makes a comprehensive evaluation and analysis of the natural conditions and human factors that affect the water and salt movement in the region. It is believed that except for some parts of the area which are threatened by soil salinization, most parts of the area are buried in deep water, drainage conditions are good, and soil salinity is not large, but there is a threat of potential secondary salinization and alkalization.