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长期来,由于建设方针上的失误,人口猛增,植被稀少,土壤瘠薄,“三料”俱缺,造成固原县水土流失相当严重,人民生活非常贫困。固原县经过1983—1985年的土地结构合理调整,生产力有较大提高,粮食产量明显增加,水土流失大幅度减少,群众收入净增两倍。结合全县的综合治理工作,确定了今后农林牧优化用地比例为1:1:3,农田中粮食作物、经济作物和牧草用地比例为5:1:2。建立良性农业生态模式的关键一环,是建立起一个合理高效的农林牧生态经济结构,孤立地就水土保持抓水土保持,解决不了这样一个全局性的问题。
In the long run, due to the mistakes in the construction guidelines, the rapid population growth, scarce vegetation and infertile soils, the lack of “three materials” has caused serious soil and water loss in Guyuan County and extremely poor people’s living conditions. In Guyuan County, after a reasonable adjustment of land structure from 1983 to 1985, productivity has been greatly increased, grain output has increased markedly, soil erosion has drastically decreased, and net income has doubled. Combined with the comprehensive management of the county, the proportion of land for optimizing agriculture, forestry and animal husbandry is 1: 1: 3. The proportion of land for food crops, cash crops and pasture in the farmland is 5: 1: 2. The key link in establishing a benign agroecological model is to establish a rational and efficient eco-economic structure of agriculture, forestry, animal husbandry and ecology and independently solve the problem of overall conservation of soil and water conservation.