１该区现行种植结构存在的弊端 我市南部高沙土地区，所辖１８个乡镇，４２个行政村，总耕地面积４４．５万亩，农业人口 ４５．８万，人均不到１亩地，土壤有机质含量１％左右，人多地少、土沙地薄、养殖业发达。该区历史上以纯旱作为主，６０年代形成了水旱轮作种植制，８０ 1 Existing Disadvantages of Planting Structure in the Zone In the high sandy soil area in the southern part of the city, there are 18 townships and 42 administrative villages under its jurisdiction. The total cultivated land area is 445,000 mu and the agricultural population is 458,000, less than 1 mu per capita. Soil organic matter content of about 1%, many people less, thin sandy soil, aquaculture developed. In the history of the area, pure drought was the mainstay, and in the 1960s a cropping system of drought and drought was formed