Environmental and climatic characteristics of Linyi

Linyi, the old liberated area, ranks alongside Jinggangshan, Yan 'an and Xibaipo as the eight major red tourist cities in China. Linyi, based on rich red tourism resources, is committed to building a famous "red capital" in China. Against the background of red culture, Linyi vigorously promoted the construction of water city Linyi and garden city, and created the best livable environment. The "green water city" began to take shape. Eight hundred miles of Yimeng River, with beautiful scenery, sky blue and green land, wide streets and beautiful city. The city brand of "Red Capital Greentown" has added infinite charm to Linyi. Linyi City, located in the old Yimeng area, is rich in red tourism resources and is known as the "Little Yan 'an" in East China. During War of Resistance against Japanese Aggression and the War of Liberation, Yimeng Old District was a famous revolutionary base, the capital of Shandong Liberated Area and the command hub of the revolutionary struggle in East China. , Xu, Luo Ronghuan, Chen Yi, Su Yu and other proletarian revolutionaries of the older generation fought and lived here, leaving many revolutionary relics. The stories of "Yimeng Mother", "Yimeng Red Sister" and "Yimeng Six Sisters" have been handed down from generation to generation. The spirit of Yimeng that has been formed is "love the party and the army, forge ahead, work hard and make selfless contributions". Yi River, thousands of miles away, runs through Linyi City, adding a waterfront charm to red Linyi. Xiaobudong barrage, known as "the first dam in the world", holds 34 square kilometers of wide water surface with a total storage capacity of 1 100 million cubic meters. On both sides of the Baili Riverside Avenue built along the river, many green scenic spots and leisure gardens such as Phoenix, Yimeng Spirit, Ginkgo Garden have been built, and the renovation and development projects of He Sui and qinglong river have been promoted as a whole, creating a pleasant urban living environment. With the concept of people-oriented urban management, yi river comprehensive environmental management project was awarded the "Model Award of China's Human Settlement Environment" by the Ministry of Construction, and Linyi Riverside Wetland became one of the national urban wetland parks, which was the first city in the old revolutionary base areas of China to pass the acceptance of the national environmental protection model city. At the same time, Linyi invested more than 3 billion yuan to implement the "calm, bright and blue sky" project in the urban area to create the most suitable urban environment for human settlement and entrepreneurial development. Trade makes a strong city, and logistics spreads all over the world. Linyi regards the promotion and expansion of trade logistics as the key project of the city's service industry development, continues to implement the "trade-driven" strategy, and accelerates the promotion of traditional markets with modern logistics concepts and formats. With a number of well-known logistics enterprises settled in Linyi, a comprehensive modern logistics park radiating the whole country has been initially formed. At the same time, they further accelerated the construction of three platforms: transportation, information and warehousing, improved the trading network, and actively promoted the extension of traditional logistics to modern logistics, urban logistics to rural logistics and domestic logistics to international logistics. Nowadays, modern business formats such as e-commerce, chain operation, warehousing operation, supermarket operation, general distribution and general agent have become the mainstream of Linyi business. At present, the transaction volume of e-commerce has accounted for 30% of the total transaction volume in the market, realizing a modern business pattern from "booth wholesale and cash spot" to "logistics the world with a click of a mouse". In 20 10, there were 60,000 merchants in Linyi Mall, with an annual turnover of 80 billion yuan and the added value of modern logistics of 45 billion yuan. Edit this section of natural geography and geomorphology Mengshan Yingfeng Linyi is located in the southeast of the hilly area in central and southern Shandong, with high terrain in the northwest and low terrain in the southeast. From north to south, there are four mountain ranges: Lushan Mountain, Yishan Mountain, Mengshan Mountain and Nishan Mountain, which extend from northwest to southeast and control the flow direction of the upper reaches of Yishu River and its main tributaries. Yishu River Basin is the center, surrounded by mountains in the north, west and east. Fan alluvial plain is formed in the south. The terrain is complex and the difference is obvious. The mountains are mountainous, the peaks are green, the hills are winding and undulating, the plains are endless, the rivers are criss-crossing, and the clear water is like practice. Mountains, hills and plains each account for one-third of the total area. The mountainous areas are concentrated in Yishui, Yinan, Mengyin, Pingyi, Feixian and Junan counties. The terrain is relatively high, generally above 400 meters above sea level. With dense vegetation, the mountainous area is the main base for developing forestry, fruit industry and animal husbandry, and crops such as yellow tobacco, peanuts, wheat and sweet potatoes are also planted. The hills are mainly distributed in the periphery of Yishui, Yinan, Junan, Lanshan, Cangshan, Linshu, Tancheng, Pingyi and other mountainous areas, with the widest distribution in the east of Shuhe River, with an altitude of 200-400 meters. The hilly soil is sandy, suitable for farming, thin in soil layer and poor in water and fertilizer conservation, which is suitable for developing shelter forests and economic forests. It is the main producing area of peanuts, sweet potatoes, corn, yellow tobacco and other crops. Plain includes Yishu River alluvial plain, valley plain and Laowa plain. Yishu River alluvial plain is mainly distributed in southern Yishui, eastern Yi 'nan, Hedong, country-specific ones, Luo Zhuang, Cangshan and Tancheng. Lincang Plain has a deep soil layer and fertile soil. It is a major grain and vegetable producing area and is known as the "granary". The valley plains are mainly distributed in Feixian, the middle of Pingyi, Pinggu in front of Mengshan Mountain, and the valleys of Mengyin, Yinan and Yishui counties. The soil layer is deep, the texture is moderate, and there are many crops such as wheat and corn. Mengyin and Yishui produce apples, peaches and other fruits, which are now sold to Shanghai and other places. Waterlogged lowland plains are mainly distributed in Cangshan and south of Tancheng, with heavy soil, poor drainage and easy waterlogging. Many crops include wheat, rice and vegetables. Geological structure The geological structure of this city is complex and the strata are relatively developed. From Archean to Cenozoic, except for Upper Ordovician, Zhihua, Devonian, Lower Carboniferous, Triassic, Middle and Lower Jurassic, Paleocene and Neogene strata, all other fault zones extend northeast through Tancheng and run through the city. There are four major mountains from north to south: Lushan, Yishan, Mengshan and Nishan. There are more than 800 big hills, generally 200 to 500 meters above sea level. There are more than 500 peaks above 500 meters above sea level, and there are more than 10 peaks above sea level, showing the magnificent scenery of Yun Biao. The elevation of Mengshan Mountain is1156m, which is the second highest peak in Shandong Province. It is called "Asia of Daizong" and is a famous religious and cultural mountain in ancient times. Elevation of Yishan1032m. Known as Dongzhen in ancient times, it ranks first among the five towns, with beautiful scenery and beautiful scenery. These two mountains have long enjoyed a good reputation both at home and abroad. Mazong Mountain, Hamoyama, Tianbaoshan Mountain, Wenfeng Mountain, Jiazi Mountain, Yinque Mountain, Maling Mountain, Mengyin Mountain, Cangshan Mountain and Ai Shan are all famous for their unique features, historical events, figures, legends and products. There are many table mountains formed by flowing water erosion in the territory, which are called "ancient" locally and known as the seventy-two ancient Yimeng. In fact, there are more than 100 ancient buildings, which are magnificent. They are not only a wonder of China, but also extremely rare in the world. The famous ones are Meng Lianggu, Baodugu, North-South Valley, Longxi Valley, Liyang, Mo Yun, Sujia, Shichong, Jiwanggu and Zhuzi. During the War of Liberation, General Chen Yi jumped from Ma Meng to Yishui, and wrote a magnificent poem "One side is beautiful, and seventy-two are lovely". The development of China water system is pulse-shaped. There are four major water systems: yi river, Shuhe, China Canal and Binhai, which belong to the Huaihe River Basin. The main rivers are Yihe River and Shuhe River, with large tributaries 1035 and small and medium tributaries 15000. /kloc-There are more than 300 rivers over 0/0 km. The main source of yi river's hair originates from the northern foot of Laoshan Mountain at the junction of Yiyuan, Mengyin and Xintai. It flows through Yishui, Yinan, Lanshan, Hedong, Luo Zhuang, Cangshan, Tancheng and other counties, flows into Jiangsu Province and then flows into the Yellow Sea, with a total length of 570 kilometers and a domestic flow of 287.5 kilometers, with a maximum flow of 15400 m3/s (1957). The larger tributaries are Dongwen River, Menghe River, Liuqinghe River, Hehe River, Sugagawa River, Gongli River and Baima River, with a drainage area of 10790 square kilometers. The Shuhe River originates at the southern foot of Yishan, flows through Yishui, Juxian, Hedong, Linshu, Tancheng and other counties, and flows into the Yellow Sea of Jiangsu, with a total length of 252.6 kilometers and a maximum flow of 7290 cubic meters per second (1974) a year. The larger tributaries are Xunhe River, Gaoyu River and Tanghe River, which are divided into Shushu Waterway, Xiazhuang River and Zhufan River, with a drainage area of 5,320 square kilometers. Yishu River basin accounts for more than 70% of the city's total area. Rivers belonging to the central canal system include Wuhe River, Wuhe spillway, Dongjiahe River, Jiaqian River and Yanzi River, all of which flow into the central canal through Cangshan County and Jiangsu Province in the south. The coastal rivers include Xiuzhen River, Xiangdi River and Qingkou River, all of which flow into the Yellow Sea. All the rivers in China belong to mountain torrents, and there are many tributaries in the upper reaches, with short source and rapid flow, and high peak in rainy season, but most of them are cut off in dry season. There are 7 large reservoirs such as levee, Bashan, Shagou, Doosan, Xujiaya, tangcun and Huibaoling, 29 medium-sized reservoirs, 899 small reservoirs and 22 river dams, with a total storage capacity of 30. In the lower reaches of Yishu River, yi river Shuhe River flood diversion project and Wuhe River flood diversion project were built, which greatly improved the river conditions. Climatic characteristics The climate belongs to the continental monsoon climate of warm temperate zone. Four distinct seasons, abundant rainfall in summer and autumn, mild climate, annual average temperature of 14. 1℃, extreme maximum temperature of 36.5℃, minimum temperature of-1.1℃, annual precipitation of 849mm, and frost-free period of 200 days. There are more than 300 rivers 10 km in Linyi city, of which Yihe River is 287.5 km long and Shuhe River is 253 km long. There are 90 large and small reservoirs in the city, with a storage capacity of 3.4 billion cubic meters and abundant water resources.