ecosystem
Anhua County is a large mountainous area. The county is located in central Hunan, at the northern section of the Xuefeng Mountains, 110.43'87†east longitude, 111.58′5l east longitude, and the south latitude is 27.58′54â€; north. The north latitude is 28.36'37â€; it is 123.764 km long from east to west, 73.461 km wide from north to south, and the total land area is 4,920.54 square kilometers, accounting for 81.9% of the mountainous area. The territory of Pinnacle Pinnacle, a mild climate, fertile soil, plenty of rainfall, Xihe net cloth, is a beautiful, beautiful scenery of the tea. The north and south are mostly separated by high mountains and neighboring counties. The Zijiang River runs from west to east across the whole territory. The north belongs to the Xuefeng Mountain System and the south belongs to the Hengshan Mountain System. The overall topography is towering on both sides of the South and North, and gradually descends to Zijiang. There are 157 peaks above the elevation of kilometers, 296 rivers with a length of more than 2 kilometers, and 120.85 kilometers of main rivers. The river basin area accounts for 98% of the county's land area. Anhua is located at the northern end of the subtropical zone and is in the subtropical monsoon climate zone. Its characteristics are: warm and humid, with four distinct seasons, abundant rainfall, and a short cold period. The average annual temperature is 16.2°C and annual rainfall is 1682 millimeters
Anhua pine needle
In meters, the relative humidity was 81% from March to July. The annual sunshine hours of 1376 hours, the total solar radiation is 97.16 kcal/cm2, frost-free period of 274 days, the general climate is characterized by four distinct seasons, early summer and late autumn, spring long winter longer. In particular, the terrain is complex and there is a large difference in altitude. The highest Jiulong Lake is 1,622 meters above sea level, and the lowest is Shanxikou, which is 57 meters above sea level. The climate is three-dimensional. There are many climate zones suitable for the development of tea production.
In the county soil, the highest land area is formed by weathering of plate shell rock. As long as there are 5 types of parent material, 71% of plate shale, 20% of sandstone, 6% of limestone, 2% of granite, and a small amount of brook River alluvium.
The ice rock found in Yanzhong Rock is also rare in China. The soil is mostly
Anhua pine needle
Red earth, yellow earth, yellow brown earth. The upper layer is deep, and according to the soil survey, the early soil tillage layer accounted for 43.7% l5-20 cm, 52.3% over 20 cm, 72% intermediate and rich in nitrogen, and 33.4% rich in phosphorus. 87.6% of the potassium is moderately abundant, 98.9% of the organic matter content is more than 1%, and the pH is between 5.5 and 7.1. Most of the soil's physical structure and chemical properties are suitable for planting tea trees, and Anhua is the main forest and tea producing area in the province. The vegetation coverage rate is 58.6%. It is warm in winter and cool in summer, and is more suitable for the growth of tea plants. Anhua's superior natural conditions and good ecological environment have laid the material foundation for the production of famous tea.