human geography
Jiaxiang County is roughly rectangular in northwest and southeast directions. The terrain slopes from northwest to southeast, with an average slope of one in ten thousand. The altitude is generally 35 ~ 40 meters. The low point is in the east of Jintun Town in the southeast of the county, with an altitude of 35 meters; The highest point is in the middle of Huanggai Township in the northwest of the county, with an altitude of 40 meters. The difference between southeast and northwest is 5 meters, and the difference between east and west is 3 ~ 4 meters. There are 26 hills 126 in the whole county, mostly in the northeast and southwest direction, protruding from the flat land in an island shape. The main peak is generally 50 ~ 200 meters above sea level, which is a unique natural landscape in the plain area at the junction of Lu Yu and Anhui. Mengliang Mountain (formerly Tashan) at the junction of Zhifang Town and Maji Township is 243.6438+0 meters above sea level, which is the highest point in the county.
Jiaxiang County is located at the edge of the Yellow River floodplain, which covers all townships (towns) in the county. The altitude is generally between 35 and 40 meters, with an area of 95.3110,000 mu, accounting for 65.4% of the county's total area of145.74 million mu. Mainly distributed in Huanggai Township, Laosengtang Township, Mengguji Township, Wolongshan Town, Liangbaosi Town, Dazhanglou Town, Macun Town, Zhang Wan Township, Tuanli Town, Jiaxiang Town and other townships (towns); There are 405,200 mu of depressions, accounting for 27.8% of the county's total area, which are mainly distributed in the county town, Dazhanglou, Liangbao Temple and Maji, Jintun East, Zhongshan, Mandong, Zhifang and other townships (towns) in the southeast of the county town. The mountainous area is 9.9 1.0000 mu. It accounts for 6.8% of the county's total area, mainly distributed in Zhifang Town and Mandong Town, the west of Zhongshan Township, the west of Maji Township, the south of Jiaxiang Town and the south-central part of Wolongshan Town.
Jiaxiang county belongs to the continental climate of warm temperate monsoon region, with dry and windy spring, hot and rainy summer, crisp autumn, dry and cold winter and distinct four seasons. The annual average temperature is 12.8℃- 13.9℃. Under the influence and control of the East Asian monsoon, the dry and wet seasons are distinct, and the annual precipitation is very uneven in seasonal distribution. In spring, the temperature warms up quickly, the climate is changeable, the rainfall is scarce, and it is southward. The average precipitation from March to May is 99mm, accounting for 15% of the annual precipitation. The large evaporation often leads to spring drought, high temperature and rainy summer, high temperature and high humidity, concentrated precipitation and frequent rainstorms. The average precipitation from June to August is 398.5mm, accounting for 60% of the annual precipitation. Due to the concentration and intensity of precipitation, floods and droughts occur alternately. In autumn, the temperature drops sharply, the rainfall decreases and the weather is fine. The average precipitation in September-165438+ 10 is 133.7mm, accounting for 20% of the annual precipitation, and autumn droughts often occur. Winter is often controlled by high air pressure, the climate is dry and cold, and there is little rain and snow. The average precipitation in June 5438+February-February is 30mm, accounting for 5% of the annual precipitation.
Jiaxiang-historical origin
Jiaxiang county has a long history and outstanding people. According to legend, during the Spring and Autumn Period, Lu Aigong went hunting in the west and got a unicorn. This place is named "Jiaxiang" because of its beautiful and auspicious meaning. It was located in the county seat in 1 147. Archaeological findings show that there were human activities in the Neolithic Age in China. During the Spring and Autumn Period and the Warring States Period, agriculture developed and culture flourished, which became the political, economic and cultural center of Shandong. Jiaxiang is the hometown of Ceng Zi, one of the four ancient sages (Confucius, Mencius, Ceng Zi and Yanzi). Learn from Confucius, Zisi from Confucius, and Mencius from Confucius. Ceng Zi inherited the Confucian orthodoxy and opened the Mencius School. He is the main successor and disseminator of Confucius' theory, a famous educator and thinker after Confucius, and has a very prominent position in the mainstream traditional culture of Confucianism in China. Among the 72 sages of Confucius disciples, Zeng Shen, Ran Qiu and ran yong were all born in Jiaxiang, and Ceng Zi disciples Le Zhengzi Chun, Gong, Gong, Shen Youxing, Yang Mingfu and Xiangzi were also born in Jiaxiang. Lujiang, which was famous for its faithfulness in the Eastern Han Dynasty, defended the paradigm. Chi Jian, one of the "Eight Scholars of Yanzhou" in the Eastern Jin Dynasty, and Song Huizong in the Northern Song Dynasty were all famous.
Yu Wang, a litterateur, said that Chao, one of the four bachelor's degrees in Sumen, an upright official in Yuan Dynasty, Huang Jiabin, a teenager in Taibu Temple, an upright official in Ming Dynasty, and Gao Douguang, a strict assistant minister of the Ministry of War, were all auspicious people.
Jiaxiang-natural resources
Jiaxiang county is rich in minerals. The proven coal area is 1.25 km2, and the total reserves are 1.694 billion tons. The geological reserves of coal in Liangbaosi coalfield are 1 100 million tons, and the coal quality is gas-fat coal, which is now mined by Feikuang Group. There are abundant coal resources in the eastern part of Jintun Town, which need further exploration. The coalfield around Boliu in Xintiaohe Township covers an area of about 6 square kilometers, with a geological reserve of about 50 million tons, which is now mined by Li Neng Group. Jiaxiang county is rich in limestone reserves and complete in varieties. The proven limestone reserves in this county are about 9 billion tons.
There are thick layered limestone and extremely thick layered limestone, as well as slab limestone and banded limestone. There are pure limestone, oolitic limestone, bamboo-leaf limestone, leopard-skin limestone and dolomite. Pure limestone is the main raw material for producing high-quality cement, and leopard skin rock is a very beautiful building fabric: the physical and mechanical properties of oolitic limestone are the best in carbonate rocks, and dolomite has good physical and mechanical strength and stable chemical properties.