Location context
Dezhou City is located in the northwest of Shandong Province, on the north side of the lower Yellow River, between east longitude1117 36' and north latitude 36 24' 25 "-38 0' 32". It is bounded by the Zhang Weixin River in the north and adjacent to Cangzhou City, Hebei Province. It is bounded by Wei Canal in the west and adjacent to Hengshui City, Hebei Province. The southwest borders Liaocheng; South across the Yellow River and Jinan City; Binzhou is in the east. 320 kilometers from the capital Beijing. The territory is 200 kilometers wide from east to west and 175 kilometers long from north to south, with a total area of 10356 square kilometers, accounting for 7.55% of the total area of Shandong Province. It is about 22 meters above sea level.
zone
Dezhou is an alluvial plain of the Yellow River, and there have been two large Yellow Rivers in history.
Migration, thousands of breaches, created a high southwest and low northeast terrain. Due to the factors of flood, velocity and wind accumulation, the plain is characterized by ups and downs and alternating distribution of hills, slopes and depressions. There are many landforms in Dezhou city, which can be roughly divided into three categories: one is plateau, which is deposited by rivers and riverbeds, accounting for 34.3% of the total land area; Second, the sloping land deposited by the flood of the Yellow River accounts for 52.1%of the total land area; The third is depression, accounting for 13.6%.
Jinan, also known as "Spring City", is the capital of Shandong Province, one of the 15 sub-provincial cities in China, the headquarters of the Army in the Northern Theater, one of the five major theaters of China People's Liberation Army, and the political, cultural and educational center of Shandong Province. Jinan is known as the "Spring City" in China because of its numerous springs, and it is also known as "Lotus on four sides and willow on three sides, with mountains in one city and lakes in half the city". It is a national historical and cultural city.
Jinan is located in the central and western Shandong Province, with Mount Tai in the south, the Yellow River in the north and mountains and rivers in the back. It borders Liaocheng in the southwest, Dezhou and Binzhou in the north, Zibo in the east and Tai 'an and Laiwu in the south.
Jinan is located at 36 40 ′ north latitude and117 00 ′ east longitude, with Mount Tai in the south and the Yellow River in the north. Located at the junction of hilly areas in central and southern Shandong and alluvial plain in northwest Shandong, the terrain is high in the south and low in the north.
zone
The topography of Jinan can be divided into three zones: the Yellow River in the north, the piedmont plain in the middle and the hilly and mountainous areas in the south. The main peaks in the territory are Changchengling, Paomaling, Ladder Mountain and Heiniuzhai. There are more than 3,000 square kilometers of mountains and hills and 5,000 square kilometers of plains. The highest altitude is 1 108.4m, the lowest altitude is 5m, and the height difference between north and south is 1 100m.
Jinan has many springs because of its unique topographical and geological structure. Jinan is located in the heart of Shandong Province, with low mountains and hills in central and southern Shandong and alluvial plains in northwest Shandong, just sandwiched in the middle. It is a gentle monoclinic structure with a height difference of more than 500 meters. The urban terrain is naturally high in the south and low in the north, which is conducive to the collection of surface water and groundwater into the urban area.
Jinan underground is soluble limestone. After many tectonic movements and long-term dissolution, a large number of karst ditches, caves and underground rivers have been formed, which has become an underground pipe network capable of storing and transporting groundwater. A large amount of groundwater in the southern mountains of Jinan, criss-crossing limestone strata, travels southward, and meets closely organized magmatic rocks in the northern suburbs, like a natural stone wall, blocking the water veins. Eventually, a large amount of groundwater trapped here, with strong pressure, gushed out of the ground along many cracks and passages connecting the ground, so natural springs appeared. It is precisely because of this geological structure that although Jinan is located in the earthquake zone of Hebei Plain and Lubei Plain, the underground vibration can be effectively buffered by groundwater to the maximum extent.