Why does it rain every day in Hunan?

It rains every day in Hunan because of its geographical location.

Hunan is located in the subtropical zone, which is different from the dry desert climate at the same latitude. Hunan has a continental climate with abundant sunshine, suitable temperature, maritime climate and abundant rainfall, forming a subtropical monsoon humid climate with continental characteristics. This climate feature is mainly manifested in that the rainy period is closely related to the advance and retreat of the summer monsoon, and the rain and heat are basically the same season.

Hunan is hot and humid in summer and relatively cold and dry in winter. Spring and autumn are seasons, and the weather changes frequently, and the temperature and precipitation fluctuate greatly. Hunan is located in the influence range of East Asian monsoon, and the southeast monsoon prevails in summer, bringing humid airflow and a lot of precipitation. In winter, affected by the cold air in the north, the temperature drops suddenly and is dry.

At the same time, Hunan's geographical environment is complex, including Xiangjiang River, Dongting Lake and other waters, as well as hilly terrain, all of which have a certain impact on the weather in Hunan.

Brief introduction of water resources in Hunan

There are many rivers in Hunan province, with dense river network and developed water system, with 534 1 river over 5 km. With Dongting Lake as the center and Hunan, Guizhou, Yuan and Li as the skeleton, the water system in the whole province mainly belongs to Dongting Lake water system in the Yangtze River basin, accounting for 96.7% of the total area of the province, and the rest belongs to Ganjiang water system in the Pearl River basin and the Yangtze River basin and small water systems flowing into the Yangtze River.

Average precipitation for many years 1450 mm, and average total water resources for many years168.9 billion cubic meters, including surface water resources168.2 billion cubic meters and groundwater resources of 3.915 billion cubic meters (non-repetitive amount of groundwater of 700 million cubic meters).

The total amount of water resources is the sixth in China, with a per capita possession of 2,500 cubic meters, slightly higher than the national level, and it has certain advantages in water resources. However, due to the uneven distribution of time and space, the three major problems of "more water, less water and dirty water" are still one of the restrictive factors for the economic and social development of this province.

Reference to the above content: Baidu Encyclopedia-Hunan Province