Introduction of Huixian County, Henan Province?

Geographical location: huixian city is located in the north of Henan Province, south of Taihang Mountain, west of North China Plain, adjacent to Shanxi Province, and the prefecture level is managed by Xinxiang City. North latitude 3517' ~ 35 50', east longitude113 23' ~113 57'. It is located at the junction of Henan and Shanxi provinces, bordering Lingchuan County in Shanxi Province in the west, Linzhou City and Huguan County in Shanxi Province in the north, Weihui City in the east, Huojia County in the south, Xinxiang City and Xinxiang County in the southeast and Xiuwu County in the southwest. The urban area is 600 kilometers north of Beijing, 80 kilometers south of Zhengzhou and 20 kilometers southeast of Xinxiang. The western part of the city is close to Taihang Mountain, and the main peak of Jiufeng Mountain Cross Ridge is1732m above sea level. The total area of the city is 2007 square kilometers, including mountainous area 1007 square kilometers, hilly area 2 16 square kilometers and land area 784 square kilometers, with a total population of 790,000 (in 2004). It is located in the transition zone from the second-grade landform step to the third-grade landform step, and the terrain is stepped down from northwest to southeast, including deep mountain area, deep and low mountain area, hilly area, basin, piedmont inclined plain, plain and depression, with the lowest depression at an altitude of 72 meters. It belongs to the Weihe River system in Haihe River Basin, and the main rivers are Qihe River, Bai Quan River, Liudian River, Huang Shuihe River, Shimen River, Yu He River and Zhifanggou River. The middle route project of South-to-North Water Transfer Project, which is about to start, runs through the whole territory from west to east. Small and medium-sized reservoirs for flood control irrigation 19, of which Baoquan Reservoir has a storage capacity of130,000 cubic meters, with a maximum storage capacity of 382 10000 cubic meters; Shimen Reservoir has a total storage capacity of 30.84 million cubic meters; Sanchakou Reservoir has a storage capacity of 23.86 million cubic meters; The total storage capacity of Chen Jiayuan Reservoir is13.7 million cubic meters. Huibaoquan Reservoir, Shimen Reservoir, Chen Jiayuan Reservoir and Sanjiaokou Reservoir are first-class confluence channels with a total length of 86.5 kilometers, which can be adjusted according to water demand. Topographic huixian city is located in the transition zone from the second landform step to the third landform step. The terrain gradually descends from northwest to southeast. Geomorphological types include deep mountain area, deep and low mountain area, hilly area, basin, piedmont inclined plain, plain and depression. Cross Ridge, the highest peak, is 1732 meters above sea level, and the lowest depression accounts for 72 meters above sea level in Nanfan Village in urban and rural areas. The strata in huixian city are Archaean, Proterozoic Sinian, Paleozoic Cambrian, Ordovician, Carboniferous and Permian, Neogene and Quaternary. The geomorphic unit in the planning area belongs to the alluvial-diluvial inclined plain in front of Taihang Mountain, with high topography in the north and low topography in the south, high topography in the east and low topography in the west. The earthquake split is 8 degrees. The city is located at the foot of Taihang Mountain, with an annual average temperature of 65438 04℃ and precipitation of 657 mm. There are mountains and rivers in the territory-Taihang Mountain, Baiquan Lake, the source of Weihe River, Hongzhou in the desert and the southern plain. Twice a year, it used to be two crops of rice and wheat. Due to the drop of water level, the rice planting area has dropped sharply, mainly planting wheat and corn. A few decades ago, there were many small lakes and rivers in Huixian, which were rich in water, but now it is getting more and more dry and the environmental pollution is more serious.