Stratigraphically, the basement lacks sediments from late Ordovician to early Carboniferous. The coal-bearing clastic rock series from Upper Carboniferous to Permian were deposited on the Middle Carboniferous, while Triassic and Jurassic were denuded in Mesozoic. Since the Cretaceous, the area has sunk sharply and received extremely thick Cretaceous and Cenozoic sediments.
Nanhe County is located in the southwest of Hebei Plain, in the alluvial fan belt in front of Taihang Mountain, with flat and open terrain, inclined from southwest to northeast, with an altitude of 30.5-50.8 meters and a ground slope of 1/2500. Due to the siltation, flooding and diversion of rivers, depressions of different sizes are formed locally, such as Zhao Shi River-crossing depression, Shang Gang River-crossing depression, Song Jia River-crossing depression and Xilipan depression. Nanhe County has a warm temperate and semi-humid continental monsoon climate with four distinct seasons, less rain and windy in spring, high temperature and humidity in summer, sunny and cool in autumn and cold and dry in winter. Annual average temperature 13℃, in which 1 month average temperature -2.9℃ and extreme minimum temperature-2 1 .9℃ (1981year1month 26); The average temperature in July is 26.5℃, and the extreme maximum temperature is 41.7℃ (65438+June13,0979). The frost-free period is about 200 days, and the duration of the annual average daily temperature above 5℃ is 275 days. The annual sunshine hours are 246 1.7 hours, with the maximum in May and the minimum in February.
The average annual precipitation in Nanhe County is 475. 1mm, and the maximum annual extreme precipitation is 842.8mm (1963) and the minimum is 246.9mm (1972). And the seasonal distribution of precipitation is uneven, mostly concentrated in July and August, accounting for 68% of the annual precipitation; Winter is the least, with an annual average of 16.7mm, accounting for 14%.
The soil in Nanhe County is divided into 3 soil types, 5 subtypes, 8 soil genera and 27 soil species. The fluvo-aquic soil accounts for 99.3% of the total land area (610.2 million mu), and the rest is paddy soil and aeolian sandy soil. These five subcategories are fluvo-aquic soil, brown soil, wet fluvo-aquic soil, flooded paddy soil and mobile aeolian soil. It is mainly fluvo-aquic soil, accounting for 92% of the total area, and its distribution is mainly restricted by rivers. The county is divided into western moist soil area, western light loam moist soil area, south-central sandy loam moist soil area, eastern light loam moist soil area, eastern middle loam moist soil area and southern sandy brown soil moist soil area. Browned fluvo-aquic soil is mainly distributed in the ancient channel of Shaming River, accounting for 5.4% of the total area. Wet fluvo-aquic soil is mainly distributed in Xili shallow depression in Song Jia and Heguo Township and Yangtun-Doucun depression along the river, accounting for 65,438 0.6% of the total area. Paddy soil is mainly distributed in the east of Fantun in the west of Song Jia Town, accounting for 0. 16% of the total area. Mobile aeolian sandy soil is mainly distributed on the floodplain in the middle and upper reaches of Lijiang River, accounting for 0.52% of the total area. In terms of soil quality, loam accounts for 93.8% and sandy soil accounts for 5.5%. The rivers in Nanhe County belong to Ziya River system in Haihe River Basin. There are four flood channels in the territory, namely Shunshui River, Linan River, Shaming River and Liuli River. The total length of the territory is 68.5km, the drainage area is 408km2, and the river network density is 1 1 km/km2. The maximum flow rate is 890 cubic meters per second. The runoff of surface self-produced water is 6.5438+0.2 billion cubic meters, the runoff of foreign guest water is 6.5438+0.10.68 billion cubic meters, and the total runoff is 6.5438+0.8 billion cubic meters. Among them, the flood storage and detention area in the middle reaches of Lijiang River involves four towns, namely Song Jia, Qiao Hao, Zhao Shi and Sanzhao, and 60 administrative villages. Shaming River and Liuli River are cross-city rivers, while Linan River and Shunshui River are cross-county rivers. Before 1980, all rivers except Shunshui River were seasonal rivers. By 20 14, all rivers are seasonal and dry except rainy season. The name of the river, the length of its birthplace.
Depth (km)
Width (m) Watershed area
Maximum flow (square kilometers)
Li Nanhe (Shahe), Xingtai County, Shahe City (m3/s)
23.9 —— 40 —— 50 124.8300 Shaming River19.8 2.612202.10.40 Dongchuan Reservoir in the mountainous area of Neiqiu County 9.20.000000000005 Since 1980s, due to the influence of upstream climate, ecological environment changes and reservoir construction, the water volume of four major rivers in Nanhe County has gradually decreased, and Baiquan River basically stopped supplying water to Nanhe County after 1983. Before 1990, the average total water resources in Nanhe County for many years was 248.7 million cubic meters, of which the average self-produced surface water volume for many years was/kloc-0.2 billion cubic meters, and the guest water volume was/kloc-0.6 billion cubic meters. The incoming water was unsafe and the utilization rate was extremely low. The average annual recoverable amount of groundwater is 68.699 million cubic meters, and the actual recoverable amount is 82.4 million cubic meters. Industrial and agricultural production mainly depends on over-exploitation of groundwater.
Nanhe County is a region with extremely scarce water resources. According to the Planning Report on the Development and Utilization of Groundwater Resources in Xingtai City, Hebei Province, the Second Evaluation of Water Resources in Hebei Province and the Long-term Water Supply Planning in Nanhe County, the total water resources in the county are 70.85 million cubic meters, and the available groundwater is 60.38 million cubic meters. In view of the shortage of water resources, Nanhe County has successively built supporting projects of South-to-North Water Diversion Project, such as Fuyang River Line, Xingqing main canal with annual water supply of 5.3 million cubic meters, surface water plant with daily designed water supply of 6.5438+0.8 million tons, and yellow river diversion pipeline project with annual water diversion of 9.65438+0.8 million cubic meters. And transfer water to the Yangtze River and Yellow River basins, and exploit groundwater 979 per year. Li Chaoying: Clerk. Preside over the overall work of the county party Committee.
Li: Deputy Secretary of the county party committee and county magistrate. Preside over the overall work of the county government.
Chen Yueshi: Deputy Secretary. Assist Comrade Li Chaoying in Party building. County magistrate Li: presided over the overall work of the county government.
Deputy County Magistrate of Liu Haichuan: Responsible for the daily work of the county government.
Deputy County Magistrate He: Responsible for opening to the outside world, attracting investment, industrial economy, finance, commerce, electric power, communications, and the construction of provincial development zones.
Lu, deputy county magistrate: responsible for politics and law, production safety, letters and visits, market supervision, industry and commerce, trade supervision, food safety, food and drug supervision, etc.
Guan Chaoping, deputy county magistrate: responsible for urban and rural construction, housing security, transportation, civil air defense, housing accumulation fund and other work.
Zhao Xianke, deputy county magistrate: responsible for agriculture, rural areas, agricultural development, poverty alleviation, water affairs, supply and marketing, meteorology, civil affairs and other aspects.
Vice Governor Jia Zhiqiang: Responsible for science and technology, education, health, culture, radio and television, population and family planning.
Li, deputy county magistrate: Assist Zhao Xianke, deputy county magistrate, in charge of poverty alleviation. Yang (Director): Presided over the overall work of the Standing Committee of the County People's Congress.
Yan (Deputy Director): In charge of representatives, urban construction, engineering construction and business circulation.
Jiao Weiqiang (Deputy Director): In charge of communication, science and technology, and literary and art circles.
Hu Mengxian (Deputy Director): In charge of transportation, taxation, electric power, finance and agriculture.
Wei Zhijun (Deputy Director): In charge of finance and economics, auditing, supervision, politics and law, mass organizations, education and culture, health, family planning and letters and visits. Zhang Zhibin: President of CPPCC. Preside over the overall work of CPPCC. Attend the meeting of the standing Committee of the county party Committee.
Yang Yuejin: Vice Chairman of CPPCC. In charge of the office and the science, education, culture and health Committee.
Feng Jinbao: Vice Chairman of CPPCC. In charge of the work of the Economic Committee.
Wang: Vice Chairman of CPPCC. Responsible for the work of the proposal committee.