Shuangyashan City, also known as Coal City, is a prefecture-level city in Heilongjiang Province. Shuangyashan City is located in the northeast of China and Heilongjiang Province, in the hilly area at the northern foot of Wanda Mountain, bordering the vast hinterland of Sanjiang Plain in the north, rolling mountains in the south, high in the southwest and low in the northeast, and facing Russia across the Wusuli River in the east. The total area of the city is 22,500 square kilometers.

Within 300 kilometers around Shuangyashan, there are six first-class ports to Russia, including Raohe, Suibin, Luobei, Tongjiang, Fuyuan and Fujin. Located in the core area of Heilongjiang Province's opening to the Russian Far East, it is an important node city in the construction of the "China-Mongolia-Russia Economic Corridor".

With the first-class national ports that have been put into operation-Raohe Port, Raohe Sino-Russian Trade Zone and Sida Sino-Russian International Trade Center, China-Russia International Cultural Logistics Economic and Trade Industrial Park is being built to build an import and export processing base and a trade distribution base with Russia. International passenger and cargo transport lines from Shuangyashan to Khabarovsk and Shuangyashan to Birobidzhan have been opened one after another.

Topographic climate of Shuangyashan Mountain

Shuangyashan City is located in the hilly area at the northern foot of Wanda Mountains. It is an ancient mountain with gentle slope, low hills, thick soil and mixed broadleaf and coniferous forests. The territory is high in the southwest and low in the northeast, with an average elevation of 450 meters. The south of the city is mountainous, and the southwest is about 500 to 600 meters above sea level. Only Qixinglazi and Shidaoba Nanshan are as high as 852 meters and 755 meters respectively, and the cutting depth is between 200 and 400 meters, which belongs to low mountainous areas. Along the mountain, there are 45 valleys and 4 larger valleys in the west, east and south.

Shuangyashan City is located in the humid climate zone in the middle temperate zone. Except Raohe County, which has a semi-continental and semi-marine climate influenced by the Sea of Okhotsk and the Sea of Japan, other cities and counties have a continental monsoon climate. Winter is controlled by the polar continental air mass, and the climate is cold, dry and long; Summer is influenced by the subtropical maritime climate, with warm and rainy climate and concentrated precipitation. The climate in spring and autumn is changeable, and spring is short, fast and windy. Autumn is short, the temperature drops suddenly, and first frost is early.

Reference to the above content: Baidu Encyclopedia-Shuangyashan