Heihe geography

Heihe River is close to the Siberian prairie, the birthplace of cold air, and Xiaoxing 'anling Mountains run through the north and south, which makes the whole city have the characteristics of continental monsoon climate in cold temperate zone, spanning three, four, five and six accumulated temperature zones. The temperature is unstable in spring, dry and windy, warm and rainy in summer, cool and comfortable in autumn, cold and long and dry in winter, long in winter and short in summer, with four distinct seasons. The city's annual average rainfall is 500-550mm, the effective accumulated temperature is 1950-2300℃, the sunshine hours are 2560-2700 hours, the frost-free period is 90- 120 days, the annual average temperature is-1.3-0.4℃, and the daily maximum temperature is 38.

Cold is one of the main climatic characteristics in Heihe region, and the annual average temperature in Heihe is-1.3 to -0.4℃. January is the coldest, with an average temperature of -25.4 to -23.8℃. It is the hottest in July, with an average temperature of 19.4-2 1.3℃. The annual variation range is 44.2-46.7℃, which is rare in other parts of China. From mid-October of 65438/kloc-0 to mid-April of the following year, the days when the daily average temperature in the whole region is less than or equal to 0℃ are 183- 195 days; 165438+1from late October to the end of February of the following year, the daily average temperature is less than or equal to -20℃, which lasts for 88- 103 days. The average number of days in a year when the lowest temperature is less than or equal to -30℃ can reach 25-54 days, which can occur from the end of June 165438+ to March of the following year. The extreme minimum temperature in various places exceeds -40℃, which can occur in most years. In the winter of 1965, the lowest temperature is less than or equal to -30℃ for 9 1 day and less than or equal to -40℃ for 20 days. The extreme minimum temperature of -48. 1℃ also appeared in the winter of 1980.

The climate in Heihe region is pleasant in summer, hot at noon and cool in the morning and evening. From late May to late August, the number of days when the daily average temperature is greater than or equal to 20℃ exceeds 80 days. The number of days when the annual average maximum temperature is greater than or equal to 30℃ is 7- 12 days. The highest temperature recorded in Dedu County1July 1968 was 38.2℃. From mid-May to mid-September, the number of days in which the average daily temperature in Heihe River remained above 10℃ was the least in Sunwu County, which was 1 16 days, while in other counties (cities), it was 123- 128 days. The accumulated temperature greater than or equal to 10℃ is between19.44℃ and 23.06℃, with the least in Sunwu County. It is characterized by the lowest temperature and the smallest accumulated temperature in the hinterland of Xiaoxing 'anling. Extending to both sides of the mountain range, the temperature gradually increases and the accumulated temperature gradually increases. Rich in water resources, there are 62 1 rivers in Heilongjiang and Nenjiang. The per capita urban ownership is 3.5 times that of the whole country and 2.6 times that of Heilongjiang Province.

Rivers are all mountainous rivers with large drop, so there are many dam sites suitable for building hydropower stations. The hydropower reserve in the black section of the main stream of Heilongjiang150,000 kilowatts. The installed capacity of inland rivers is 670,000 kilowatts, accounting for 52% of the province. The total installed capacity of 10 hydropower station reaches194,000 kilowatts. There are 93 kinds of mineral resources, more than 4 10, and 56 kinds of proven reserves of 22 1, among which gold, copper, agate, limestone, mineral water and other mineral resources 15 rank first in the province. Duobaoshan Copper Mine is the second largest copper mine in China, and it is also known as the three cold springs in the world together with Wudalianchi mineral water, French Weixi mineral water, Georgian mineral water and Caucasian mineral water.

Heihe City is rich in mineral resources, and the Daxing 'anling, Heihe and Yichun iron polymetallic industrial belts cross the territory. The city has discovered 95 kinds of metallic minerals such as black, color, precious and rare, and nonmetallic minerals such as energy, chemical raw materials, metallurgical auxiliary materials and rare elements, and 37 kinds have been identified, accounting for 72.5% and 48% of the province and 53.9% and 24.2% of the country respectively. More than 600 mineral deposits have been discovered, including 73 proven reserves, and the potential economic value of major mineral resources is about 654.38+000 billion yuan. At present, the proven reserves of copper, molybdenum, tungsten and zeolite 16 resources rank first in the province. Among them, Duobaoshan copper mine is the largest copper mine in Northeast China, and Cuihongshan iron polymetallic mine is the second largest iron mine in the province. The proven reserves of coal resources are 960 million tons. In addition, the reserves of characteristic mineral resources such as platinum group metals, pyrite and perlite are relatively high, which is rare in other cities in the province. Heihe City, with a forest area of 2810.3 million hectares and a timber accumulation of10.58 billion cubic meters, is one of the three major forest areas in Heilongjiang Province.

There are 467 species of wild animals such as red deer and moose, and more than 0/000 species of wild plants. It is an important wildlife resource park and gene bank in China, where rare animals under national first-and second-class protection are distributed. More than 350 kinds of Chinese herbal medicines have been found in China. Precious Chinese medicinal materials such as ginseng, velvet antler and oviductus ranae, as well as authentic Chinese medicinal materials such as acanthopanax senticosus, scallop, astragalus, Schisandra chinensis, red peony root and atractylodes rhizome, have a large output, and the annual reserves of wild medicinal materials are about 6.5438+0.7 million kilograms. After years of cultivation exploration, we have mastered mature cultivation techniques and successfully planted ginseng, Schisandra chinensis, Silybum marianum, Radix Isatidis, Radix Astragali, Glycyrrhizae, Acanthopanax Senticosus, Radix Saposhnikoviae and Pinctada 13 varieties, covering an area of nearly 65,438+10,000 mu. There are 87 species of fish belonging to 18 family in rivers and lakes, among which Maha and "Three Flowers and Five Luo", which are special products of Heilongjiang, are particularly precious.