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山西之长在于煤,山西之短在于水。随着山西工农业生产蓬勃发展,人民群众生活水平迅速改善和人口数量的绝对增长,水的供需矛盾日益尖锐,引用污水进行农田灌溉已成为综合利用废水、兴利除弊的一条有效途径。污灌除可提供作物所需水分、养份外,还能大大降低废水处理成本。据不完全统计,目前全省直接污灌面积为80万亩,占总水浇地的4.9％,集中分布于城市近郊、工矿区附近的排污渠道下游农田。
The longest in Shanxi is coal, and the shortest in Shanxi is water. With the vigorous development of Shanxi’s industrial and agricultural production, the rapid improvement of the people’s living standards and the absolute increase in the number of people, the contradiction between water supply and demand has become increasingly acute. The introduction of sewage for farmland irrigation has become an effective way to comprehensively utilize waste water and eliminate disadvantages. Sewage irrigation can provide water and nutrients needed for crops, but also greatly reduce the cost of wastewater treatment. According to incomplete statistics, at present, the province’s direct sewage irrigation area is 800,000 mu, accounting for 4.9% of the total irrigated land, and is concentrated in the downstream farmland of sewage drainage channels near the suburbs and industrial and mining areas.