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周吴大队位于西部黄土丘陵林、牧、粮区的祖厉河林牧及麦糜中早熟区,海拔1811～2274米之间,年降水量330～400毫米,多集中于7、8、9三个月,生长季干燥度大于1.55,为全县最干旱的地区。周吴大队为了改变旱作农业长期产量低而不稳的被动局面,用大农业和生态学的观点,认真总结经验教训,实行农林牧综合发展,从1982年开始,经两年努力,使自然景观已开始发生变化,种树种草面积扩大,植被逐步恢复,粮油产量大幅度提高。1983年比历史最高产量的1980年播种面积减少
Zhou Wu Brigade is located in the western loess hilly forest, animal husbandry, grain Zu Lihe forest pasture and wheat germination in precocity area, elevation 1811 ~ 2274 meters, the annual rainfall of 330 ~ 400 mm, mostly concentrated in 7,8,9 three Month, dry season growing more than 1.55, the most arid area of the county. In order to change the low and unstable passive situation of long-term output of dry farming, Zhou Wu Brigade conscientiously summed up the experience and lessons and implemented the comprehensive development of agriculture, forestry, animal husbandry and animal husbandry from the viewpoint of agriculture and ecology. Since 1982, after two years of hard work, Landscape has begun to change, planting trees and grass area expanded, vegetation gradually restored, grain and oil production increased significantly. The area planted in 1980, which was the highest in 1983 than in history, decreased