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内蒙古自治区巴彦淖尔市河套灌区位于阴山以南、黄河以北,总面积1721万亩,占全市总土地面积的17.4%。该地区地处干旱、半干旱、半荒漠地带,独特的地理位置和多变的气候条件,造成这一地区冬季严寒少雪,夏季高温干热,昼夜温差大,加之蒸发量大,降雨较少,地下水的运动属于垂直入渗蒸发型,每升灌溉水中含盐量约为0.5克,这些因素决定了河套灌区盐碱化程度较严重,灌淤土、盐土、风沙土相间分布。套区林业用地面积455万亩,森林覆盖率12.84%,
Bayannaoer City, Inner Mongolia Hetao Irrigation District is located south of Yinshan, north of the Yellow River, with a total area of 1721 mu, accounting for 17.4% of the total land area of the city. The area is located in arid, semi-arid and semi-desert areas. Due to its unique geographical location and changing climatic conditions, the area is cold and snow-less in winter, hot and dry in summer with a large temperature difference between day and night, with large evaporation and less rainfall . The movement of groundwater belongs to vertical infiltration and evaporation type. The salt content per liter of irrigation water is about 0.5g. These factors determine the degree of salinization in Hetao Irrigation District is rather serious, and the distribution of irrigation soil, saline soil and aeolian soil is interdependent. Covering an area of 455 mu of forestry land, the forest coverage rate of 12.84%