Unfavorable natural conditions for developing agriculture in Yuanmou County

The unfavorable natural conditions for developing agriculture in Yuanmou County are as follows:

Yuanmou County is located in the north-central part of Yunnan, with a total land area of 202 1.69 square kilometers, of which the dam area accounts for 55.7% and the mountainous area accounts for 44.3%. Located in the dry-hot valley of Jinsha River Basin, it is rich in light and heat resources, with an annual average temperature of 265,438 0.5℃ and basically frost-free all year round, and is known as a natural greenhouse.

The average annual rainfall in the county is 642 mm, and the average annual evaporation is 3082 mm, which is 4.8 times of the rainfall. Due to the influence of special geographical environment and climate factors, problems such as resource water shortage, engineering water shortage and water quality water shortage coexist in Yuanmou County. Frequent land rotation leads to the contradiction between supply and demand of water resources in Yuanmou Irrigation District, and the water supply guarantee rate is only 58% in moderate drought years.

Various climatic conditions, seasonal temperatures, unfavorable special natural environment and the urgent requirements of economic development forced Yuanmou to actively develop and utilize limited water resources, tap its potential, develop high-efficiency and water-saving agriculture according to local conditions, and take a unique road of rejuvenating agriculture through science and technology.

Biological resources in Yuanmou county:

Yuanmou County is rich in natural resources and special products, with 724 genera and 170 families and 297 species of plants. Peace dam in the valley is mostly herbs, sparse shrubs in the mid-levels and trees in mountainous areas. There are winter and early vegetables such as tomatoes, onions, cowpeas, green peas, green beans and burdock, and subtropical fruits such as watermelon, grapes, mangoes, guava, pitaya, annona, longan, bananas, jujubes and citrus.