Sanmenxia City is a new city rising with the construction of Sanmenxia Dam, the first dam of the Yellow River in Wan Li, and it is also the closest city to the Yellow River among the cities along the Yellow River. According to legend, when Dayu was controlling water, he cut the dragon gate and opened the column, forming three canyons in the middle reaches of the Yellow River, namely "Man Gate", "Ghost Gate" and "God Gate", hence the name Sanmenxia.
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The total area of Sanmenxia City is 10496 square kilometers, and the landforms are mainly mountains, hills and loess tablelands, of which mountains account for 54.8%, hills for 36% and plains for 9.2%, which can be described as "five mountains, four tombs and one river". Most areas are between 300 and1500m above sea level. Xiaoqinling Laoya Tea is located in lingbao city, which is the highest peak in Henan Province, with an altitude of 24 13.8 meters. ..
Sanmenxia City is located on the terrace on the south bank of the Yellow River, surrounded by water on three sides and shaped like a peninsula. Known as "surrounded by mountains on three sides, half city smoke village, half city field". ?
At present, the forest land area of the city is 7,094,500 mu, the forest volume is17,344,000 cubic meters, and the forest coverage rate is 50.72%, ranking first in the province. The green area of urban built-up area is 1 197 hectares, the green coverage rate is 44.3%, the green space rate is 39.9%, and the per capita park green area is 12.83 square meters.
Sanmenxia city is located in the mid-latitude inland area, and most areas belong to the warm temperate continental monsoon climate. The annual average temperature is 13.8℃, the annual average sunshine is 22610.7 hours, the frost-free period is 2 16 days, and the annual average precipitation is 580 ~ 680 mm. Due to the complex landform characteristics, it forms a multi-climate with warm temperate zone, temperate zone and cold temperate zone.
Sanmenxia is rich in mineral resources. 66 kinds of deposits have been discovered, including large deposits 12 and medium deposits 3 1. Among them, 50 kinds of proven reserves are listed in the national reserve balance table, with a potential economic value of 270 billion yuan; There are 3 1 species in the top three in the province.
There are 34 species with proven mining value and 37 species that have been developed and utilized, among which gold, aluminum and coal are the three dominant mineral resources. Gold reserves and output rank second in China, and minerals such as zinc and antimony 15 rank first in the province. Nine minerals, such as molybdenum, uranium and lead, rank second in the province and are important precious metals and energy development bases in Henan Province and even the whole country.
Baidu encyclopedia-Sanmenxia