I want to know the geological characteristics, climate characteristics and natural environment of some areas in China.

I want to know the geological characteristics, climate characteristics and natural environment of some areas in China.

-Geography of China!

Topographic and climatic features of China The average natural runoff in Lanzhou and above is 32.3 billion m3. Due to the dry climate in this area, the evaporation and leakage loss of the river from Lanzhou to Hekou Town is great, and the river runoff has not increased, but decreased by 654.38+0 billion m3.

I don't quite understand the core of your question about the climate characteristics of woodland and grassland. Moreover, it is also a woodland, and the climate of woodland at different latitudes is also different. I can't give a specific answer, I can only say some general contents. Woodland and grassland have a certain regulatory effect on climate (woodland has a greater regulatory effect). Under this adjustment, the climate is more humid and the temperature changes are more moderate. For example, compared with bare land, woodland and grassland at the same latitude, in terms of climate humidity, woodland is wetter than grassland, and grassland is wetter than bare land. From the perspective of climate change, the temperature change of woodland is the most moderate, followed by grassland, and the temperature change of bare land is the most drastic (the coldest in winter, followed by grassland, the mildest in woodland, the hottest in summer, followed by grassland and the coolest in woodland), that is, the temperature of woodland is all year round. In addition, from the perspective of wind power, the wind power in woodland is the smallest, followed by grassland, and the wind power in bare land is greater. I hope all the above can help you.

Geographical and climatic characteristics of Hefei area: natural climate

Hefei has a subtropical humid monsoon climate. The climate throughout the year is characterized by four distinct seasons, mild climate, moderate rainfall, changeable temperature in spring, fresh air in autumn, obvious plum rains and concentrated rainfall in summer. The annual average temperature is 15.7 degrees, the rainfall is nearly 1000 mm, and the sunshine is more than 2 100 hours.

The climatic characteristics of polar regions and the causes of cold. Climatic characteristics of polar regions: cold and dry all year round. Cause of Cold: Because the polar regions are located in the northernmost (North Pole) and southernmost (South Pole) of the earth, the sun has a large inclination, so it is cold. (For example, the area near the equator is the area with the lowest latitude and the longest circumference of the earth, so the equator is much closer to the sun than the polar regions, so the temperature at the equator is very hot, much hotter than the polar regions. )

Name the climate characteristics and advantages and disadvantages of China: typical continental monsoon climate; Rain and heat in the same period; Climate types are complex and diverse.

Climate advantages of China: the same period of rain and heat is beneficial to the growth of crops and forests; In summer, the national temperature is high, which is conducive to the growth of warm crops; The climate types are complex and diverse, so that most crops and trees can find ideal growing places in China, which makes our country rich in species; Some meteorological landscapes can also be developed into good tourism resources; China coastal and northwest areas can also develop wind energy resources; Solar energy resources can also be developed in northwest China and Qinghai-Tibet region.

Disadvantages of China's climate: the monsoon climate zone is prone to floods and droughts; In winter, the northern region is often attacked by cold waves, and the low temperature and rainy weather in the southern region in spring is not good for crop growth. There are large areas of arid areas and alpine areas, which are not conducive to agricultural production and people's lives.

The climatic and phenological characteristics of Spring Festival in different regions are different.

The climate in northwest China is cold, dry and desolate.

The temperature in the northern region is low, cold and dry, and trees fall leaves.

The temperature in the south is low, the temperature is low and there is little rain, but most of the time it is above 0 degrees. Trees do not shed leaves, but they are still green.

The temperature in Qinghai-Tibet region is low, there is little rain, and the vegetation is yellow.

On the climatic characteristics of some areas in high school geography 1. The tropical rain forest climate is mainly distributed near the equator, such as Malay Archipelago, Amazon Plain, Congo Basin and Gulf of Guinea. It is characterized by high temperature and rainy all the year round, low temperature in annual range, monthly average temperature of 25-28℃, annual precipitation of more than 2000 mm, and relatively uniform distribution throughout the year.

2. The tropical grassland climate is mainly distributed in the north and south sides of the tropical rain forest climate zone, with a high annual average temperature, but the annual fluctuation temperature is slightly higher than that of the tropical rain forest climate, and the annual precipitation is mostly between 400- 1500mm, which is obvious in dry and wet seasons. The farther away from the equator, the longer the dry season, so the less precipitation.

3. The tropical monsoon climate is distributed in South Asia and Indochina Peninsula, characterized by high temperature all the year round, and the average temperature in Leng Yue is above 18℃. Precipitation is closely related to wind direction. The northeast wind from the mainland prevails in winter with little precipitation, and the southwest wind from the Indian Ocean prevails in summer with abundant precipitation. The annual precipitation in most areas is 1500-2000 mm, but some areas are far more than that.

4. Tropical desert climate is distributed in the mainland or the west coast of the mainland near the Tropic of Cancer, characterized by high annual average temperature, large annual temperature difference, large daily temperature difference and scarce precipitation. The annual precipitation is generally below 250 mm, and in many areas it is only tens or even several millimeters. Precipitation has great variability, and it often doesn't rain for several years.

5. The subtropical monsoon climate is distributed in the subtropical area on the east coast of the mainland, where it is not cold in winter, and the average temperature in 65438+ 10 is generally above 0℃, and it is hot in summer, and the average temperature in July is generally around 25℃. In winter, the direction of Xia Feng changes obviously, and the annual precipitation is generally above 1000 mm, mainly concentrated in summer and less in winter. This climate is most typical in the southeast of China. In other areas, because there is a considerable amount of precipitation in winter, there is little difference between winter and summer, so it is called subtropical monsoon humid climate.

6. The Mediterranean climate is distributed in the subtropical area on the west coast of the mainland, and the Mediterranean coastal area is the most typical, hence the name. This climate is characterized by mild winter and hot or warm summer, and precipitation is mainly concentrated in winter and dry summer, so it is also called subtropical dry summer climate.

7. The temperate maritime climate is distributed in the temperate zone on the west coast of the mainland, which is characterized by being neither cold in winter (the average temperature in 5438+ 10 is above 0℃) nor hot in summer (the average temperature in July is below 22℃). There is precipitation all year round, the annual precipitation is generally around 1000 mm, and the favorable terrain can reach more than 2000 mm.

8. The temperate monsoon climate is distributed in the eastern Qinling Mountains and Huaihe River, North Korea and Japan, and the eastern coastal areas of Siberia. It is characterized by hot summer and cold winter, and the annual precipitation is 500- 1000 mm, mainly in summer. The temperature difference between winter and summer increases from south to north, and the precipitation decreases from south to north.

9. The temperate continental climate is distributed in Eurasia and North America. Controlled by the continental air mass all the year round, Leng Xia is hot in winter, with high annual temperature and little precipitation, with annual precipitation below 500 mm, forming a dry or semi-arid climate in the central part of the mainland. On the other hand, the northern part of the mainland is characterized by high latitude, long cold winters, short cool summers and small evaporation. Although there is little precipitation, it is not dry, forming a special sub-frigid coniferous forest climate.

10. The polar climate is distributed in Eurasia and the northern edge of North America, Greenland, Arctic Islands and Antarctica. On the continental margin, winter is long and cold, but the average temperature in the hottest month in summer can reach 10℃. Moss and lichen are typical plants here, so they are also called tundra climate. Greenland, the Arctic Islands and most parts of Antarctica are covered with ice and snow all year round, and the average temperature in the hottest month does not exceed 0℃, so it is called ice field climate.

1 1. Alpine climate may appear at any latitude, which is characterized by vertical changes in temperature and precipitation. The temperature decreases with the increase of height, and the precipitation increases with the increase of height within a certain height range, and decreases with the increase of height beyond this height.

Where 10. Polar climate includes tundra and ice sheet climate. (1) polar long cold climate (tundra climate). It is distributed in the northern margin of North America and Eurasia (the south is connected with the continental climate of the sub-cold zone by the hottest month 10℃ isotherm), part of the coast of Greenland and several islands in the Arctic Ocean. In the southern hemisphere, it is distributed in Malvinas Islands, south shetland islands and South Orkney Islands. Its characteristics are: it is winter all year round, the average monthly temperature in a year is between 0 ~1~ April, and the winter is cold and long; The annual precipitation is about 200 ~ 300 mm, mainly snowfall; There is a layer of permafrost on the ground, only lichens, mosses and other low-level plants.

(2) The climate of polar ice sheet. It is distributed in and around the polar regions, including Greenland, several islands in the Arctic Ocean and the ice sheet plateau of the Antarctic continent. This is the birthplace of the ice ocean air mass and the Antarctic air mass. It stays in a state of long night all winter. Although summer is like spring all the year round, the sunshine is oblique and the heat gained is weak, so the climate is cold all the year round, and the temperature in each month is below 0℃. The Antarctic continent has an average annual temperature of -25℃, which is the coldest continent in the world. 1967, the absolute minimum temperature measured by Norwegians was -94.5℃, which was called the "cold pole" in the world. Most of the ground is covered with thick ice and snow, and there are many cold storms, which make it difficult for plants to grow.

12. Coniferous forest climate in sub-cold zone). This kind of climate appears between 50 and 65 north latitude, which is distributed in a strip shape and crosses North America and Eurasia. Specifically, in North America, from Alaska to most parts of Labrador and Newfoundland via Canada; In Eurasia, it starts from Scandinavia in the west (except the south), passes through Finland and the west of the Soviet Union (the south boundary is on the line of Leningrad-Gorky-Sverdlovsk), and reaches the east of the Soviet Union (except the south). The northern part is bounded by the hottest month 10℃ isotherm. The climate in this area is mainly influenced by the polar ocean air mass and the polar continental air mass, which is the source of the polar continental air mass. In winter, there are many opportunities for the Arctic air mass to invade. In warm seasons, tropical continental air masses can sometimes penetrate. The main features of this climate are: the winter is long and cold, the average temperature is below 0℃ for 5 ~ 7 months every year, and the cold weather of -50℃ often occurs; Summer is short and warm, and the monthly average temperature is above 10℃, and the highest temperature can reach 18 ~ 20℃, especially the annual variation. The annual precipitation is generally 300 ~ 600 mm, mainly in summer rain. Due to weak evaporation, the relative humidity is very high.

Geographical scope of warm zone in China. Climatic characteristics and major environmental problems. Geographical scope: The warm temperate zone in China is located between the mid-temperate zone and the north subtropical zone in the monsoon region, roughly between 32 and 43 north latitude, with a fan-shaped outline and a narrow west, starting from the south of Lanzhou and extending eastward to the Bohai Sea and the Yellow Sea. The southern boundary runs along Qinling-Funiu Mountain, passing through the Huaihe River and the main canal in northern Jiangsu. The northern boundary starts from Yulin, Dingbian and Lanzhou near Guyuan in the northwest of the Loess Plateau, then along the southern edge of Inner Mongolia Plateau, turns eastward across the northern edge of Liaodong Bay and ends at the mouth of Yalu River, accounting for about 10.9% of the total land area of China, including all Beijing, Tianjin and Shandong provinces, most of Shanxi, Liaoning, Hebei, Henan and Shaanxi provinces, and Anhui, Jiangsu and Shaanxi provinces.

2. Climatic characteristics: Because it is located at the edge of the mid-latitude westerly belt and the eastern monsoon area, the climate in this belt is humid and semi-humid, with little rain and snow in winter and dry and windy sand in spring. Autumn, crisp and full of photos, is the tourist season.

3. Environmental problems: The Yellow River, Huaihe River and Haihe River, the three major rivers in northern China, are all local major rivers and are all called "harmful rivers". Among them, the Yellow River is famous for its rich sediment, and the long-term siltation has made the lower reaches of the Yellow River a world-famous "river on the ground". The middle and upper reaches of the Yellow River flow through the sandstorm area and the loess plateau with serious soil erosion. Under the double erosion of wind erosion and water erosion, the annual sediment input into the Yellow River is 65.438+0.6 billion tons, which is the highest in the world. The shortage of water resources is a common problem in the improvement of local ecological environment. Due to the long-term development and destruction of human beings, almost all the natural vegetation in this area has disappeared, and soil erosion in the Loess Plateau and desertification in the northern marginal areas have become the most serious ecological problems in China. Preventing desertification from spreading to Beijing has become one of the global ecological problems of international concern.