Changwu County belongs to Xianyang City, Shaanxi Province, and is located in the middle reaches of Jinghe River in the northwest of Xianyang City. Binxian in the east, Lingtai County in Gansu Province in the south, Jingchuan County in Gansu Province in the west, Ningxian County and Zhengning County in Gansu Province in the north, and the east longitude 107 38' 49 "to 107.

The longest point from north to south is 30.06 kilometers, and the widest point from east to west is 27.23 kilometers, with a total area of 567 square kilometers. By the end of 2022, Changwu County had 1 street and 7 towns under its jurisdiction. By the end of 2022, the permanent population of Changwu County was 14.7 1 10,000.

Changwu County is known as the "Three Qin Barriers" and "Qin Long Gateway". Founded in the 27th year of Qin Shihuang (the first 220 years), it has a history of more than 2,200 years. This is the hometown of Niu Hong, a famous scholar in Sui Dynasty, and also the place where Emperor Taizong fought Li Shimin on the shallow platform.

Climatic Characteristics of Changwu County

Changwu County is located in the hinterland of northwest China, which belongs to the warm temperate zone and semi-humid continental monsoon climate zone, and is also the transition zone between the warm and humid zone in southeast China and the arid zone in northwest China. Affected by the topography and altitude of the Loess Plateau, the vertical climate characteristics are obviously formed, with the temperature rising slowly in spring, hot and rainy in summer, continuous cool in autumn rain and long and cold in winter. The background and distribution of climatic resources are: abundant light energy resources, poor heat utilization conditions, moderate rainfall and uneven distribution.

Since the 1960s, the climate has obviously warmed, the process of winter snow has decreased, and the number of spring droughts has increased. Affected by the monsoon, there are four seasons in a year: spring, summer, autumn and winter. In spring, the continental polar air mass weakened northward, the tropical warm and humid air mass gradually strengthened northward, the temperature gradually rose, and the precipitation began to increase. However, cold air activities are frequent and the daily temperature difference is large. Monsoon often appears, often accompanied by cold wave, frost and windy weather, prone to spring drought, affecting wheat greening and autumn spring sowing.

Reference to the above content: Baidu Encyclopedia -Xi An Changwu County