What are the hydrological characteristics of the mountainous areas of Northeast China, and the gener

The liberal arts student upstairs is not very perfect, and then help him review the characteristics of hydrology There are 7 main aspects of hydrological characteristics:

1. Runoff. The climate in the mountainous areas of Northeast China is cold, and the sunshine is not sufficient and strong, so the evaporation is small. The Northeast has a temperate monsoon climate, and the precipitation varies greatly in winter and summer, while the Northeast has abundant snowfall and abundant precipitation in summer. Therefore, the runoff in the mountainous areas of Northeast China is characterized by small runoff in winter, large in spring (snowmelt and water), and large in summer, and the total runoff of rivers is large (must be added).

2. Sand content. The Northeast region has a high forest coverage rate and soil erosion is not serious, so the sediment content is small 3, with or without flooding. Yes During the summer flood season, if the river flows from low latitude to high latitude, there will also be a flood (that is, spring flood).

4. Whether there is an ice period. Yes, generally occurs in the winter trimester 5, whether the water energy resources are abundant. It is relatively rich, and there are still a lot of reservoirs built in the mountainous areas of Northeast China, the most famous is Songhua Lake (Jilin Songhua River Reservoir).

6. The water level, the water level is normal, and the water level of the mountain rivers is relatively high 7. Mainly rainwater, ice and snow meltwater, etc

Seriously typed word by word, I hope ha

Hydrological characteristics, the main analysis of sediment content, flood season, flow, flow rate, freezing period, those comprehensive they said on the line, the most important thing is that the rivers in the Northeast have a feature is the spring flood, which is not available in other regions, because the temperature in the Northeast rises in the spring, the freezing ice and snow melt into water, the formation of the seasonal flood season, as long as it comes to the spring flood must think of the Northeast region, this is a significant feature, I hope to help you.

1.It belongs to the temperate monsoon climate zone and has a large flow.

2.The mountainous area has a large drop and a fast flow rate.

3.There are two flood seasons a year (spring flood and summer news), and the water level changes greatly from season to season.

4.High latitude and long ice periods.

5.(The sediment content should be seen in combination with the local vegetation conditions).

6.(Ling Xun should be combined with whether it is from high latitude to low latitude to see) liberal arts students. Review by the way.

Hope it helps.

Hydrological characteristics of the Northeast River:

1. There are two Liangshou flood seasons in a year, the first flood season is due to the spring flood formed by the melting of large snow leakage in winter (some are Lingxun, which is formed by the freezing of rivers in winter and the temperature warms up in spring), and the second flood season is the summer flood formed by the rainfall brought by the monsoon climate.

2. Long icing period.

3. The sand content is small, and the upstream rubber imitation is good for soil and water conservation.

4. The amount of water in the river is small.

Water is abundant (flows through humid and sub-humid areas).

The flood season is relatively short (there are spring floods, seasonal snow melt, summer floods, and temperate monsoon climates.

Atmospheric precipitation) has little sediment content (dense forests, small undulations).

Long ice period (high latitude, located in the cold temperate zone, middle temperate zone), Songhua River, Ussuri River.

Heilongjiang has the phenomenon of flooding.

The water level changes less: the river is recharged.

The river water supply in the northeast monsoon climate zone is composed of atmospheric precipitation and ice and snow meltwater, with less precipitation and less meltwater in winter, and the river is in the dry period. In summer, there is a lot of precipitation, a lot of meltwater, and the river is in the flood season. There are freezing periods.

The Northeast region has a temperate monsoon climate with four distinct seasons.

Summers are hot and rainy: In summer, the sun has an increased altitude angle, the days are long, the temperatures are high, and the southeast monsoon blowing from the tropical ocean brings abundant precipitation.

Winter is cold and dry: the average temperature of the coldest month is below 0, and the winter is cold, which is caused by the high latitude, close to the source of the winter wind, low and flat terrain, high in the west and low in the east, which weakens the winter monsoon.

The monsoon is significant.

Northeast China is an important industrial and agricultural base in China, and it is very important to maintain the strategic position of national defense security, food security, ecological security, energy security and industrial security, which is related to the overall development of the country.

Northeast China spans the middle temperate zone and the cold temperate zone from south to north, and belongs to the temperate monsoon climate, with four distinct seasons, warm and rainy summer, cold and dry winter. From southeast to northwest, the annual precipitation drops from 1000 mm to less than 300 mm, and the transition from humid and semi-humid to semi-arid areas. Northeast China has a high forest coverage rate, which can prolong the melting time of ice and snow, and forest snow storage is conducive to the development of agriculture and forestry.

The basic characteristics of the ground structure in Northeast China are the main characteristics of the ground structure in Northeast China, and the soil is dominated by black soil, which is the natural basis for the formation of a large economic zone. It is surrounded by the Yellow Sea and the Bohai Sea in the south, the Yalu River, the Tumen River, the Ussuri River and the Heilongjiang River in the east and north, and only the land boundary in the west.

The inner side is the high mountains, middle mountains, low mountains and hills of the Great and Small Xing'an Mountains and the Changbai Mountains, and the central part is the vast Songliao Great Plain and the Bohai Sea Sag. The area of the Northeast Plain is higher than the proportion of the national plain area, and the Northeast Plain (which can be divided into Songnen Plain, Liaohe Plain, and Sanjiang Plain).

The total area of the Hulunbuir High Plain and the flat land between the mountains is almost equal to the area of the mountains; Northeast China has about 100 million acres of wasteland, which is rare in China with great potential, and the major grasslands of Mengdong 5 League cities in the western part of Northeast China are dominated by animal husbandry.

The Northeast region has a temperate monsoon climate with four distinct seasons.

Replenishment method: 6 September is the rainy season in the northeast, mainly precipitation replenishment. The snow and ice accumulated in spring and winter begin to melt, which is a part of the ice and snow melt water supply.

Flood season: 70% to 80% of the annual flood season brought by precipitation in June and September. Spring also has a smaller flood season as the snow melts.

Runoff: The east side of the Changbai Mountains is the deep and high value area of annual average runoff, and the general trend is from southeast to northwest, and then increases in the Daxing'an Mountains, and the interannual variation of runoff is uneven, the change range is large, and there are obvious changes in the abundant and dry water sections.

Sediment content: There is a thick layer of litter in Northeast China, and the sediment content is small.

Ice Period: Freezing in winter, around December and February of the following year.

Interruption: There will be no interruption in normal years in the Northeast, but if there is a bit of drought in spring and autumn, there will be a short-term interruption.

The rainy season starts early and ends late, the river flood season is long, the rainy season starts late and ends early, and the river flood season is short.

The river must have a freezing period, flow from low latitudes to high latitudes, and have a large volume of water (flooding is a natural disaster caused by flooding). Inland rivers generally do not produce flood phenomena, because the amount of water in inland rivers is small, and there is a dry period in winter.

In addition, like the rivers in the northeast of China, there will be two flood seasons a year, one spring flood and one summer flood, the spring flood is because of the seasonal ice and snow melt, and the summer flood is because of the rainy season.

The hydrological characteristics of the rivers in Northeast China are:1There are two flood seasons in a year, the first flood season is due to the winter snow melts back in the spring to form the spring flood (some are Lingxun, that is, the winter river freezes and the temperature warms up in the spring), and the second flood season is the summer flood formed by the rainfall brought by the monsoon climate; 2.

long ice period; 3.The sediment content is small, and the upstream soil and water are well maintained; 4. The amount of water in the river is small.

Ice ages have long flood seasons (spring and summer, spring is caused by snow melt in winter, and summer monsoon precipitation in the second half of the year), note: it must be snow melt, not glaciers. Glacial meltwater is found only in the northwest of China. The amount of water is small and the sediment content is relatively small!

The flow of the river is small, the seasonal change of water level is short, and the sediment content is large.

The flow of the river is large, there is a freezing period, the freezing period is long, and there are two flood seasons of winter flood and summer news.

Geography of China: Differences in the hydrological characteristics of rivers in different regions.

1. There are two flood seasons in a year, the first flood season is due to the spring flood formed by the melting of winter snow in spring (some are Lingxun, that is, the winter river freezes and the temperature warms up in spring), and the second flood season is the summer flood formed by the rainfall brought by the monsoon climate;

2. Long icing period.

3. The sediment content is small, and the upstream soil and water are well maintained;

4. The amount of water in the river is small.

There are two flood seasons a year; long ice period; The sediment content is small; The amount of water is small.

Hydrological characteristics of the Northeast River:

1. There are two flood seasons in a year, the first flood season is due to the spring flood formed by the melting of winter snow in spring (some are Lingxun, that is, the winter river freezes and the temperature warms up in the spring), and the second flood season is the summer flood formed by the rainfall brought by the monsoon climate.

2. Long icing period.

3. The sediment content is small, and the upstream soil and water are well maintained;

4. The amount of water in the river is small.

The Heilongjiang River basin is rich in water. The annual runoff of the basin is 346.5 billion cubic meters. The seasonal distribution of precipitation is uneven, and the warm season precipitation in April and October accounts for 90% and 93% of the year, of which 60% and 70% are in June and August.

In November, the winter half of the dry season begins, and the precipitation in the winter half of the year falls in the form of snow. The thickness of the snow on the surface is generally 20 50 cm, and when the temperature rises in spring, the snow can melt and replenish the river, and the river water ** forms a spring flood. In this way, the seasonal distribution of river runoff is:

10% to 27% in spring, 50% in summer, 20% to 30% in autumn, and less than 4% in winter. The interannual variation of runoff in the main stream is also large, and the runoff in a wet year is about a double of the runoff in a dry year. The theoretical reserves of hydropower resources are 11.53 million kilowatts, of which 6.6 million kilowatts are in the Songhua River and 3.04 million kilowatts in the main stream.

It is possible to develop 312 power stations with an installed capacity of more than 500 kilowatts of hydropower resources, with an installed capacity of 10.96 million kilowatts and an annual power generation capacity of 34.3 billion kilowatt hours. The river is wide and deep, and the main stream is from the Ussuri River below the Mohe River and below the Xingkai Lake to be passable by steamers. Ice ages last up to 6 months.

The basin is rich in forests, gold, coal and other mineral resources, and produces fish, especially salmon and mackerel.

The rivers are fed mainly by monsoon rains that fall in summer and autumn. Rainwater soon flowed into the river, creating a flood season in May October. Its average flow rate is about 10,900 cubic meters per second (385,000 cubic feet per second).

In winter, near Khabarovsk, the flow was reduced to 148,199 cubic meters (5,300,7,100 cubic feet of seconds); The highest recorded flow in 1897 was over 39,200 cubic meters (1,400,000 cubic feet per second), and in 2013 the peak flow of the Tongjiang River in Heilongjiang Province reached 43,000 cubic meters (1518533 cubic feet second).

In the second half of October, Heilongjiang began to freeze. The upstream freezes in early November, and the downstream freezes in the second half of November. The lower reaches of the river thaw at the end of April and the upper reaches at the beginning of May.

Ice jams often occur in river rapids, temporarily raising water levels by as much as 15 metres (50 ft). Rivers bring about 20 million tonnes of sediment a year.

There are many rivers and lakes in Heilongjiang Province, including Heilongjiang, Ussuri River, Songhua River and Suifen River, with 2,881 rivers with a basin area of 50 square kilometers and above, with a total length of 10,000 kilometers.

There are many lakes in Heilongjiang Province, such as Xingkai Lake and Wudalianchi. There are 253 lakes with a perennial water surface area of 1 square kilometer or more, 241 freshwater lakes and 12 saltwater lakes, with a total water surface area of 3,037 square kilometers.

Heilongjiang Province, referred to as Hei, is a provincial-level administrative region of the People's Republic of China. Harbin, the provincial capital, is located in the north of Northeast China, bounded by 43°26 -53°33 north latitude and 121°11 -135°05 east longitude, facing Russia in the north and east, adjacent to Inner Mongolia in the west, and bordering Jilin in the south, with a total area of 10,000 square kilometers.