The weather in Yaoshan

China's four major plains are: Northeast Plain, North China Plain, Middle and Lower Yangtze Plain and Guanzhong Plain.

China should have four plateaus: Qinghai-Tibet Plateau, Inner Mongolia Plateau, Loess Plateau and Yunnan-Guizhou Plateau.

China and great basin are Tarim Basin, Sichuan Basin, Qaidam Basin and Junggar Basin.

I. Northeast Plain

1, location

The Northeast Plain lies between 40 25 ′ ~ 48 40 ′ north latitude and 65 438+065 438+08 40 ′ ~ 65 438+028 00 ′ east longitude. It is located in the northeast of China, and its west, north and east are surrounded by Daxinganling and Changbai Mountain respectively.

2. Climate characteristics

Northeast Plain is located in temperate zone and warm zone, at the northernmost end of East Asian monsoon, and belongs to temperate continental monsoon climate, which is the transition zone between humid eastern monsoon region and arid inland of China. Summer is hot and rainy, winter is cold and dry, and the continental climate is getting stronger from east to west. There are four distinct seasons throughout the year, with warm and rainy summers and cold and dry winters.

Second, the North China Plain

1, location

North China Plain is an important part of the Great Plains in eastern China. Also known as Huanghuaihai Plain. It is located at 32 ~ 40 north latitude and east longitude114 ~121. It reaches the southern foot of Yanshan Mountain in the north, the northern side of Dabie Mountain in the south, Taihang Mountain-Funiu Mountain in the west, Bohai Sea and Yellow Sea in the east, covering seven provinces and cities including Beijing, Tianjin, Hebei, Shandong, Henan, Anhui and Jiangsu, covering an area of 300,000 square kilometers.

2. Climate characteristics

The North China Plain has a warm temperate monsoon climate with obvious changes in four seasons. The Huaihe river basin in the south is in a transitional area to the subtropical zone, and the temperature and precipitation are higher than those in the north. The average annual temperature in the plain is 8- 15℃, and it is cold and dry in winter. Most crops are harvested three times a year, while those in the south are harvested twice a year.

Three, the middle and lower reaches of the Yangtze River plain

I. Place

The plain in the middle and lower reaches of the Yangtze River starts from the eastern foot of Wushan in the west, reaches the Yellow Sea and the east coast in the east, connects Tongbai Mountain, the southern foot of Dabie Mountain and Huanghuai Plain in the north, and reaches the hilly areas in the south of the Yangtze River and the plain along the Yangtze River north of Qiantang River and Hangzhou Bay in the south.

Second, the climate characteristics

Most of the plains in the middle and lower reaches of the Yangtze River belong to the north subtropical zone, and a few belong to the northern edge of the middle subtropical zone. The annual average temperature is 14~ 18℃, the most Leng Yue average temperature is 0~5.5℃, the absolute minimum temperature is-10~-20℃, the hottest month average temperature is 27~28℃, and the frost-free period is 2 10~270 days. Agriculture crops two or three times a year, and the annual precipitation is 1 0,000 ~10,500 mm. The seasonal distribution is relatively uniform, but there is a "summer drought". The frost-free period is 2 10~270 days, and the active accumulated temperature above 10℃ reaches 4500~5000℃.

Fourth, Guanzhong Plain.

1, location

It is located between Qinling Mountain and Weibei Mountain System (Laolongshan Mountain, Guae Mountain, Wangyaoshan Mountain, Yaoshan Mountain, Huanglong Mountain and Liangshan Mountain). From Baoji in the west to Tongguan in the east, it is about 323-800 meters above sea level, about 350 kilometers from east to west and covers an area of about 36,000 square kilometers.

Second, the climate characteristics

It has a continental climate with an annual average temperature of 6~ 13℃ and an annual precipitation of 500~800 mm, of which 60% is from June to September. Most of them are short-term rainstorms, with less precipitation in winter and spring and frequent droughts in spring and summer.

Verb (abbreviation of verb) Qinghai-Tibet Plateau

1, location

The Qinghai-Tibet Plateau is between 26 ~ 39 north latitude and 73 ~ 104 east longitude. It starts from Pamirs in the west, reaches Hengduan Mountain in the east, borders Kunlun Mountain, Altun Mountain and Qilian Mountain in the north, and reaches Himalayas in the south. It is about 2800 kilometers long from east to west and 300~ 1500 kilometers wide from north to south, with a total area of about 2.5 million square kilometers.

2. Climate characteristics

The overall climate characteristics of the Qinghai-Tibet Plateau are: strong radiation, more sunshine, low temperature, less accumulated temperature, the temperature decreases with the increase of altitude and latitude, and the daily temperature difference is large; Wet and dry, rainy night; Winter is dry and cold, windy; In summer, the weather is cool, rainy and hails.

6. Inner Mongolia Plateau

1, location

Inner Mongolia Plateau is a part of Mongolian Plateau. It is located in the north of the yinshan mountains, west of Daxing 'anling, north to the national border, and west to the vicinity of East longitude 106. Between 40 20' north latitude and 50 50' east longitude106 ~12140'. It covers an area of about 340,000 square kilometers.

2. Climate characteristics

The temperature rises suddenly in spring, windy weather, short-term heat in summer, concentrated precipitation, sudden drop in autumn, frost often comes early, long and cold winter, and many cold waves.

Seven. loess plateau

1, location

The Loess Plateau of the Yellow River Basin starts from Wushaoling in the west, reaches Taihang Mountain in the east, Qinling Mountain in the south and Inner Mongolia Plateau in the north (roughly bounded by the Great Wall), involving 46 places (leagues, prefectures and cities) and 282 counties (flags, cities and districts) in 7 provinces (regions) of Qinghai, Gansu, Ningxia, Inner Mongolia, Shaanxi, Shanxi and Henan.

2. Climate characteristics

The Loess Plateau belongs to a (warm) temperate (continental) monsoon climate, which is cold, dry and windy in winter and spring due to the influence of polar dry and cold air masses. In summer and autumn, it is affected by the western Pacific subtropical high and the Indian Ocean low, with high temperature and rainy weather.

Eight, Yunnan-Guizhou Plateau

1, location

Yunnan-Guizhou Plateau is located in the southwest of China, starting from Hengduan Mountains in the west, connecting Sichuan Basin in the north and Xuefeng Mountain in Hunan in the east. It includes the borders of eastern Yunnan Province, Guizhou Province, northwestern Guangxi Zhuang Autonomous Region and Sichuan, Hubei, Hunan and other provinces, and it is the intersection of two groups of mountains with north-south trend and northeast-southwest trend in China. The terrain is high in the northwest and low in the southeast, with an altitude of1000-2000m. It is the fourth highest plateau in China.

2. Climate characteristics

Yunnan-Guizhou Plateau belongs to subtropical humid area and subtropical monsoon climate (Xishuangbanna belongs to tropical monsoon climate). Summer is mainly affected by the southwest monsoon, with more precipitation, rainy days and high altitude, so the summer temperature is low and the dry and wet seasons are distinct in a year.

Nine, Tarim Basin

1, location

The largest inland basin in the world. Located in the south of Xinjiang Uygur Autonomous Region. It starts from the eastern foothills of Pamirs in the west, reaches Lop Nur Depression in the east, reaches the southern foothills of Tianshan Mountain in the north, and reaches the northern foothills of Kunlun Mountain in the south, roughly within the warm temperate zone of 37-42 north latitude.

2. Climate characteristics

Living in the center of the Asian continent, the climate is dry and there is little rainfall. For example, the rainfall in Ruoqiang 1957 is 3.9 mm, and that in Minfeng Andiel 1966 is 5.0 mm, but the evaporation is very large, reaching 2952 mm in Ruoqiang, so the wind is the main force, and the wind speed is often above 5 m/s, with the development of stone mushrooms and windy city landforms.

X. Sichuan basin

1, location

Sichuan Basin is bounded by Qinghai-Tibet Plateau and Hengduan Mountains in the west, Qinling Mountains in the north, Loess Plateau in the east, mountainous areas in western Hunan and Hubei, Yunnan-Guizhou Plateau in the south, Micang Mountain in the north, Dalou Mountain in the south, Wushan Mountain in the east, Qionglai Mountain in the west, Longmen Mountain in the northwest, Daba Mountain in the northeast, Liangshan Mountain in the southwest and Wuling Mountain in the southeast.

Second, the climate characteristics

The terrain of Sichuan basin is closed, and the temperature is higher than other areas at the same latitude. Frost and snow are scarce, and the frost-free period is 280 ~ 350 days throughout the year. Changning, located in the Yangtze River valley, is frost-free all year round. Summer begins at the end of May and lasts for more than 4-5 months. The temperature in the hottest month is as high as 26-29℃, the Yangtze River basin is nearly 30℃, and the extreme maximum temperature in the southeast of the basin often exceeds 40℃.

XI。 Qaidam Basin

1, location

Qaidam basin is a plateau basin, located in the northwest of Qinghai Province. It is a closed basin surrounded by Kunlun Mountain, Altun Mountain and Qilian Mountain, with the range of 9016 ′ e-9916 ′ e, 35 00 ′ n-39 20 ′ n.

2. Climate characteristics

Qaidam basin belongs to plateau continental climate, and drought is its main feature. The annual precipitation decreases from 200mm in the southeast to 15mm in the northwest, and the annual average relative humidity is 30-40%, and the lowest can be lower than 5%. The annual average temperature in the basin is below 5℃, and the temperature changes dramatically. The annual absolute temperature difference can reach above 60℃, the daily temperature difference is often around 30℃, and it can drop below 0℃ at night in summer. The wind is strong, and the number of gale days above magnitude 8 can reach 25-75 days, and there can even be a gale of 40 meters per second in the west, with strong wind erosion.

Twelve. Junggar Basin

1, location

The northern basin of Xinjiang Uygur Autonomous Region in China is located at 45 degrees north latitude and 85 degrees east longitude, with Altai Mountain in the northeast, West Junggar in the west and Tianshan Mountain in the south. The basin is triangular with an area of about 380,000 square kilometers. The elevation of the basin is generally about 400 meters, and the height in the east (about 1000 meters) is low in the west.

2. Climate characteristics

The basin belongs to the middle temperate climate. The annual total solar radiation is about 565 kJ/cm2: the annual sunshine hours are about 3,000 hours in the north and 2,850 hours in the south. The average annual temperature in the north and west of the basin is 3~5℃, and in the south it is 5~7.5℃. The eastern part of the basin is a cold wave channel, and winter is the coldest place at the same latitude in China. The average temperature of Fuyun 1 month is -28.7℃.