On the east coast of Eurasia and the southern tip of Liaodong peninsular in northeast China, Dalian stretches from 120¡ã58' to 123¡ã31' east longitude and north latitude, with the Yellow Sea on the east, Bohai Sea on the west, facing the Shandong peninsular across the sea on the south and backed up by the vast Northeast Plain on the north. Dalian is the marine gateway of northeast China, North China, East China and the whole world. It is also an important port, and a trade, industry and tourism city.
Dalian covers an area of 12574 square kilometers, among which 2415 square kilometers of area is the old city. This area abounds with mountains and hills, while plains and lowlands are rarely seen. The terrain, high and broad on the north, low and narrow on the south, tilts to the Yellow Sea on the southeast and the Bohai Sea on the northwest from the center. The region which faces the Yellow Sea is long and gentle. The Qianshan Mountain range of Chang Baishan Mountain system passes through the whole region from north to south. Mountain regions and long eroded foothills are widely dispersed within the region. Plains and lowlands are only interspersed near the confluence and in some valleys. Kast topography and sea erosion topography are everywhere.
Dalian lies in the warm temperate zone of the North Hemisphere, with maritime feature of warm temperate continental monsoon climate. Thus, its four seasons are distinct with neither extremely cold weather in winter nor extremely hot weather in summer. The average temperature of the year is 10.5¡ãC, the rainfall of the year is 550 to 950 millimeters and the whole year sunshine is 2500 to 2800 hours.
There are mainly two large river systems, the Yellow Sea system and the Bohai Sea system. The large rivers which flow into the Yellow Sea are Biliu River, Yingna River, Zhuanghe River, Xiezi River, Dasha River, Dengsha River, Qingshui River, and Malan River, etc. while the main rivers which flow into the Bohai Sea are Fuzhou River, Li Guancun River, San Shilipu River. Among them, the largest one is Biliu River, the source river of cross-valley water diversion. In addition, there are more than 200 small rivers. The total amount of fresh water resource is 3.786 billion cubic meters, among which 3.42 billion cubic meters of water is ground water, 88.4 million cubic meters of water is underground water and 58 million cubic meters of water is shared by them both.
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