正宁县地处陇东黄土高原沟壑区的东端,为典型的半湿润偏旱雨养农业区。全县耕地面积2.91万hm2,其中54.2%的耕地分布于比较平整、肥沃的宫河、永和、山嘉、月明四条塬面,5.26%的耕地分布在纵穿县境的三条河川,构成农作物高产、稳产的基本 Zhengning County is located in Longdong Gully Region east of the loess plateau, a typical semi-humid dry rain farming area. The county’s cultivated land area is 29100 hm2, of which 54.2% of the cultivated land is distributed in the relatively flat and fertile Gonghe, Yonghe, Shanjia and Yueming four plateaus, and 5.26% of the cultivated land is distributed in three rivers that run through the county and form crops High yield, stable production of the basic