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我省西部,地处苏打盐碱土区,地下水矿化度较高。有的灌区由于灌溉不当,已引起了土壤次生盐渍化,形成盐碱危害。1982年我们曾对白城地区八个县、前郭旗、白沙滩两个灌区土壤盐碱化的状况做了调查,并分析有关资料。现将调查结果介绍如下。前郭灌区位于吉林省西北部,是东北四大灌区之一。灌区属于温带半干旱季风型气候,年降雨量为400—500毫米,蒸发量为1500—1700毫米。灌区地势平缓,南北长27公里,东西宽32公里,总面积560平方公里。海拔高程一般在127—135米之间。
The western part of our province is located in the soda saline-alkali soil area, with high salinity of groundwater. Some irrigated areas due to improper irrigation, has caused secondary soil salinization, the formation of salt hazards. In 1982, we investigated the status of soil salinization in eight irrigation districts in Baicheng, Qianqianqi and Baisha Beach, and analyzed the relevant data. Now the survey results are as follows. Qian Guo irrigation area is located in the northwest of Jilin Province, is one of the four major irrigation districts in Northeast China. Irrigated areas are temperate semi-arid monsoon climate with annual rainfall of 400-500 mm and evaporation of 1500-1700 mm. Irrigation flat, flat, 27 km long from north to south, east-west width of 32 km, with a total area of 560 square kilometers. Altitude elevation is generally between 127-135 meters.