What is the geological climate of Caijiatun, Shecun Village, Chuanshan Town, Huanjiang County, Hechi City?

Huanjiang Maonan Autonomous County in Hechi City is located on the slope of the southern edge of the central Guizhou Plateau. The overall terrain is high in the north and low in the south, surrounded by mountains on all sides, and hilly in the south of the middle, with a slightly higher altitude of 1693 m and the lowest altitude of 149 m. Northeast Mountain in Huanjiang Maonan Autonomous County is a part of 90,000 mountain systems, with the highest peak of Phoenix Mountain, with an altitude of 1.693 meters. In the northern mountainous area, Dagezhai is the main peak (elevation 1460m), which extends southward and becomes the watershed of large and small rivers. The main mountain peak in the northwest mountainous area is Jin 'ao Mountain (elevation 106 1.4), which extends from northwest to south. The west and south are dominated by karst mountains, with earth mountains, semi-earth mountains and semi-stone mountains in the middle. Qifeng is steep, and the highest peak is Xiaodongpo in Mulun Township, with an altitude of 740.0 meters. Baxian Mountain is the highest mountain in southern Central China, with an altitude of 73 1.9 meters.

The appearance of the county is controlled by lithology and geological structure. Carbonate rocks are widely distributed, mainly karst landforms, accounting for 39.9% of the county's total area. According to the basic forms and causes of landforms, counties can be divided into three categories: structural erosion landforms, erosion and denudation landforms and karst landforms. [8]

climate

Huanjiang Maonan Autonomous County belongs to the subtropical monsoon climate zone, with mild climate, abundant rain and sunshine, no severe cold in winter, no heat in summer, the same season of rain and heat, and a long frost-free period. The annual average temperature in southern Qiu Ling is 19.9℃,15.7℃; In the northern mountains. 1 monthly average temperature 10. 1℃, and the average temperature in July is 28℃; ; The lowest temperature over the years is-5.2℃, the frost-free period is 290, and the annual average sunshine hours 145.438+0 hours. The annual solar radiation is 98.89 kcal/cm2.

The average annual rainfall is1.750mm in the north and 1.389. 1 mm in the south, which is concentrated from April to September, accounting for 70% of the annual rainfall. The minimum rainfall over the years is 922.8 mm, evaporation 1. 1mm, and the average relative humidity of the air is 79.

Huanjiang River is located in the north of Guangxi and the southeast of Yunnan-Guizhou Plateau. The overall terrain is high in the north and low in the south, surrounded by mountains, with hills in the middle and a little basin. Located on the northern edge of the Tropic of Cancer, the county belongs to the monsoon climate zone of transition from south subtropical zone to middle subtropical zone. The southern margin belongs to the northern margin of the south subtropical zone, and the central and southern parts and the large and small river basins belong to the middle subtropical valley climate. These two areas have mild climate, abundant rainfall, abundant sunshine, long frost-free period, the same season of rain and heat, and crops can be harvested three times a year. The northern part belongs to subtropical mountainous climate, characterized by cool climate, wet and rainy, rainy and hot in the same season, and the heat condition can be harvested twice a year. Due to the complex terrain and geographical location, the disastrous weather in this county is frequent, such as drought, waterlogging, wind hail and frost, which has a great impact on the industrial and agricultural production and people's life in this county.