Introduction to Dingbian: Dingbian County is located in the northwestern part of Shaanxi Province, the westernmost part of Yulin City, and the seven counties of Shaanxi, Gansu, Ningxia and Mongolian provinces (districts) are handed over to the grounding belt. There are ancient junctions in the east, Yantong in the west, and Ganqing in the west. , the north pillow desert, the wide side of the soil, the three Qin fortress. The county has a land area of ​​6,920 square kilometers, with a population of 340,500, of which 282,200 are agricultural. The county governs 15 towns and 5 townships. The county has an elevation of 1,303-1,907 meters. The climate is typical of temperate semi-arid continental monsoon climate, with an average annual rainfall of 316.9 mm, mainly concentrated in July, August and September. The annual average evaporation of 2490.9 mm is 7.9 times of rainfall; the average annual frost-free period is 141 days. The frost-free period is 110 days.