I. Interpretation of Jiamusi
Jiamusi is a prefecture-level city under the jurisdiction of Heilongjiang Province and a sub-central city of Heilongjiang Province. Located in the northeast of Heilongjiang Province, it starts from 45 56' to 48 28' north latitude in the south and starts from 65 438+029' to 65 438+035 5' east longitude in the west. It faces Khabarovsk and Birobidzhan in Russia across the Wusuli River and Heilongjiang. It belongs to temperate continental climate. Jiamusi was originally named "Jiamusi Temple Kashan" and "Jiamusi Tun". In the Han and Jin Dynasties, Su Shen was renamed Kulou, in the Southern and Northern Dynasties, Buji and in the Sui and Tang Dynasties, Xiongnu, all of which surrendered to the Central Plains dynasty. 1945, Hejiang provincial government was established with Jiamusi as its capital. 1954, after the merger of Songsong and Heilongjiang Province, it was directly under the jurisdiction of Heilongjiang Province. 1983, changed to a province directly under the central government. Jiamusi, located in the center of Northeast Asia Economic Circle, has five first-class ports, is the eastern pole of China, the political, economic, scientific, cultural, educational, medical, commercial and transportation center of Northeast Heilongjiang Province, and the bridgehead of Heilongjiang Province leading to Russia and connecting Northeast Asia. Famous scenic spots are: Sanjiang nature reserve,? Shuiyuanshan Park, Sifeng Mountain Scenic Area, Liangzi River,? Morningstar Island, etc.
Second, the landform features
Jiamusi is located at the confluence of Heilongjiang, Songhua River and Wusuli River. Xiaoxing 'anling Castle Peak in the west, Zhangguang Cailing in the south, Nadanha Daling and Wanda Mountain in the south and southeast. To the north of Wanda Mountain is the Sanjiang alluvial plain, and to the northeast of Zhangguangcailing is the valley plain between the two mountains of Woken River. The city's topography forms a transitional form of mountain-hill-plain from southwest to northeast. The general trend of topography is high in the southwest and low in the northeast. The eroded low mountain area is 14629 km2, accounting for 2 1.7% of the total area of Jiamusi city. Including Xiaoxing 'anling, Wandashan, Nadanha Daling and Zhangguangcai Ridge in this city. Mainly distributed in Huanan, Tangyuan and other counties. This area is a folded mountain range formed by Hercynian movement at the end of Paleozoic, belonging to the third uplift zone of Neocathaysian system. Most mountains extend from northeast to southwest. The altitude is generally 500-800 meters, which belongs to the low mountain type. There are few Zhongshan mountains above 800 meters above sea level. Except for steep peaks and V-shaped canyons in some areas, the mountains generally fluctuate gently with a slope of 10- 15 degrees. Most valleys are wide U-shaped valleys. The surface is mostly residual soil, which is composed of loam and clayey silt, often containing cuttings, and the bedrock weathering crust is below it. The parent materials are mostly Hercynian and Yanshanian granites, and some are Proterozoic metamorphic rocks. The eroded hilly area is 9789 square kilometers, accounting for 14.5% of the total area of the city. Around the eastern slope of Xiaoxing 'anling and Wanda Mountain, with the gradual decrease of mountain topography, the landform changes from low mountains to hills. The hills of this city are distributed in Huanan, Fujin and other counties; Most of them are distributed on the edge of the plain, alternating with low mountains. At an altitude of 200-450m, the slope is gentle and long, the top of the mountain is muddy, some of them are ridged, and the valley between hills is wide and shallow. Most of the surface remains. The soil layer is thin, with loam and sand above and weathered debris below. The parent material of hills is mostly ancient granite, and the valleys are mostly sedimentary rocks. Most of the low slopes and valleys of these hills have been reclaimed.
Three. natural resource
Jiamusi is rich in resources and vast in land, and it is one of the large black soil plains in the world, including 2 1.45 million mu of the three black soil wetlands in the world. Jiamusi area is criss-crossed with rivers and lakes, and there are three major water systems in the territory: Heilongjiang, Songhua River and Wusuli River. Adequate water resources provide favorable conditions for industrial development, especially for industries with high energy consumption and high water consumption. Jiamusi is also a region rich in wind energy resources in China, with great potential for wind power generation. Jiamusi's mineral reserves mainly include gold, coal, oil, natural gas, decorative stone and mineral water. 43 kinds of mineral resources have been discovered. Jiamusi has geological conditions for oil and gas generation, with proven natural gas reserves of nearly10 billion cubic meters, and the city's accumulated proven gold reserves of 38,745.4 kilograms (metal amount).