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一、概况该场土壤系荒漠灰钙士类,有机质含量很低,一般为0.7—0.8%,土壤质地较轻,含盐量在1—3%的,占耕地面积的74.3%,0.3—1%者,占耕地面积的17.9%,故本场土壤基本均为盐碱土,为北疆垦区土壤盐渍化最为严重的农场之一。其土壤情况可归纳为下列三点:1.土壤合盐量高:一般在1—3%,尚有部分地区在3%以上,不但1米土层含盐量重,而且在13.5米深处含盐量亦达0.286—0.343%。可溶性盐类以硫酸盐为主,氯化盐次之。2.地下水位高,矿化度大:地下水位一般在1.5—2米,个别地区为4—6米,矿化度
First, the general situation The soil of the Department of desert Ash disabilities class, organic matter content is very low, generally 0.7-0.8%, soil texture lighter, salt content of 1-3%, accounting for 74.3% of cultivated land area, 0.3-1 %, Accounting for 17.9% of the area of cultivated land. Therefore, the soil in this field is basically saline-alkali soil, which is one of the most salinized farms in the northern part of Xinjiang. The soil conditions can be summarized as the following three points: 1. High salt content of the soil: generally 1-3%, there are still some areas in more than 3%, not only 1 meter soil salt content heavy, and 13.5 meters deep Salt content also reached 0.286-0.343%. Sulfate soluble salts, followed by chloride. 2. High water table, salinity: groundwater level is generally 1.5-2 meters, 4-6 meters in some areas, salinity