The geographical environment of yuqing county

Yuqing county is located in the hinterland of central Guizhou and the southeast corner of Zunyi. It is the junction of Zunyi, Tongren, Qiannan and Qiandongnan. Shiqian County in the east, huangping county in the south, Shibin in the southeast, Weng 'an County in the southwest, Meitan County in the northwest and Fenggang County in the northeast. Its geographical coordinates are east longitude 107 25'- 108. The highest elevation in yuqing county is 1386.5m, the lowest elevation is 400m, the elevation in most areas is about 850m, and the maximum cutting depth is 986.5m. The Dawujiang River arcs across the middle of the county from west to east, with steep cliffs on both sides, belonging to a deep valley zone. Xinchang, Liangfeng, Pingchang and Mu Ye Dingnortheast mountain systems in the middle of the county divide the county into northwest and southeast landforms, with different geological structures and landforms.

Yuqing county's landforms are characterized by accumulation, erosion and denudation, dissolution and denudation, etc. Carbonate rock area is characterized by structural landform of dissolution and erosion. There are karst hills, karst mountains, fault valleys or fault basins. Clastic rocks are mainly denuded, and most of them are gentle slope terrain transition zones. Light metamorphic rocks are mainly denuded structures and landforms, forming mountains and broken valleys. There are two types of accumulation landforms: river alluvial dam and erosion and erosion accumulation dam. According to the genetic types, it can be divided into four types: accumulation landform, erosion and denudation landform, dissolution landform and denudation structural landform. According to the terrain grade, the main forming indexes and agricultural utilization value are divided into four categories: flat dam, hilly, low mountain and low Zhongshan. Yuqing county has a subtropical warm monsoon climate. Four distinct seasons, no cold in winter, no heat in summer and mild climate. The annual average temperature is 65438 06.4℃. The average maximum temperature is 2 1.3℃, and the annual average minimum temperature is 12.9℃. There is not much frost and snow, the frost-free period is as long as 300 days, and the rainfall is abundant, with an average annual rainfall of1056 mm.

The weather warms up earlier in spring, but it is unstable, with frequent cold air activities, frequent low temperature and rainy days, and hail and strong winds in some areas, but the disaster is not serious. It is dry in midsummer and rainy in autumn. After winter, the temperature is lower and the rainfall is reduced.

The annual average temperature is between 13 ~ 16.4 c, increasing from northwest to southeast. The low temperature area is distributed in Shizichang, Qipo, Wengjiao, Xinzhai and other places, with an annual average of 13~ 14℃, and the high temperature area is distributed in Wujiang River Basin and Bainiba area, with an annual average of 16~ 16.4℃, while other areas have an average of/kloc-0.