Question 2: What is the altitude of Ningxia * * * Autonomous Region, which is between 3514 ~ 39 23 N and10417 ~107 39 E? The outline of Ningxia is long from north to south and short from east to west. The distance from north to south is about 456 kilometers (from the center of the Yellow River, 2 kilometers north of Toudaokan in Shizuishan City, and to Zhongzuiliang in Liupanshan in Jingyuan County in the south), and the distance from east to west is about 250 kilometers (from Tianlaoba in the southwest of Zhongwei Yingpan Water Station 10 km, and 2 kilometers east to Liushuliang in Yanchi County), with a total area of more than 66,000 square kilometers.
Folding climate environment
Ningxia * * * Autonomous Region Administrative Region Map Ningxia * * Autonomous Region lives in the depths of the northwest inland plateau of China and has a typical continental semi-humid and semi-arid climate. The rainy season is mostly concentrated in June-September, with the characteristics of long winter cold, short summer heat, scarce rain and snow, dry climate, heavy sandstorm, cold in the south and warm in the north. Because the average altitude in Ningxia is above 1000 meters, there is basically no heat in summer; 5438+ 10 The average temperature in June is below 8℃ below zero, and the extreme low temperature is below 22℃ below zero. The most striking features of Ningxia climate are: large daily temperature difference, long sunshine time and strong solar radiation. The temperature difference between day and night in most areas can generally reach 12- 15℃. The annual average temperature is between 5-9℃, and the Yellow River Diversion Irrigation Area and Guyuan area are high temperature area and low temperature area respectively. Precipitation in Ningxia is more in the south and less in the north, mostly concentrated in summer. The average annual precipitation in arid mountainous areas is 400 mm, and the average annual precipitation in Yellow River Diversion Irrigation Area is 157 mm.. 1995, 203.7 mm and 3 17.8 mm in arid mountainous areas ... Xihaigu: located in the south of Ningxia Autonomous Region in the west of China, it is Xiji, Haiyuan, Guyuan and Pengyang. It is dry all the year round, the annual rainfall is about 300 mm, but the evaporation is above 1000 mm, and various natural disasters occur frequently.
Fold topography
Ningxia * * Autonomous Region is located in the northern section of the "North-South Axis" of China, between the North China Platform, Alashan Platform and Qilian Mountain Folds. The ecotone between plateau and mountain has complex geotectonics. From west to north to east, it is surrounded by Tengger Desert, Wulanbuhe Desert and Mu Us Sandy Land, and the south is connected with the Loess Plateau. The terrain is long and narrow in the north and south, high in the south and low in the north, with large height difference in the west and slow ups and downs in the east.
Liupan Mountain in the south extends from the southern end to the north, and is intermittently connected with Moon Mountain, South Huashan Mountain and West Huashan Mountain, which divides the Loess Plateau into two parts. The eastern and southern parts are the loess plateau and hills in northern Shaanxi, and the western and southern parts are the Zhongshan and loess hills in Longzhong. The mountains in the middle are undulating, and the mountains are interlaced with the plains. Weining Beishan, Niushou Mountain, Luoshan Mountain and Qinglong Mountain support the mountain plain and stand randomly.
The northern landform shows obvious east-west differentiation. After the Yellow River left Qingtongxia, it shaped the beautiful and rich Yinchuan Plain. On the west side of the plain, Helan Mountain towering into the sky. The Ordos platform in the east is more than 100 meters higher than the plain, with a steep front, which is a salt platform protruding eastward in Ningxia.
Ningxia can be roughly divided into loess plateau, Ordos platform, alluvial plain and Liupanshan, Luoshan and Helan mountains. The average altitude is above 1000 meters. According to the surface characteristics, it can also be divided into southern warm temperate plain area, central temperate semi-desert area and northern temperate desert area. From south to north, the whole area is characterized by the transition from flowing water landform to wind erosion landform.
Ningxia * * Autonomous Region is located in the transition zone between the Loess Plateau and Inner Mongolia Plateau, with high terrain in the south and low terrain in the north. In terms of landform types, the loess landform eroded by flowing water is dominant in the south, and drought erosion and wind erosion are dominant in the middle and north, which is a part of the Inner Mongolia Plateau. There are steep mountains and widely distributed hills, alluvial plains formed by stratum subsidence and Yellow River alluvial, platforms and sand dunes. The complex and diverse surface morphology provides different conditions for economic development. According to the statistics at the beginning of 2004, hills account for 38%, plains for 26.8%, mountains for 65,438+05.8%, terraces for 65,438+07.6% and deserts for 65,438+0.8%.
The famous mountain areas in Ningxia Autonomous Region are Helan Mountain and Liupanshan Mountain. Helan Mountain traverses the northwest of Ningxia, with a length of more than 200 kilometers from north to south and a width of 15~60 kilometers from east to west. The altitude in mountainous areas is mostly 1600 ~ 3000m, with the main peak reaching 3556m m. Liupan Mountain, called Longshang in ancient times, is located in the south of Ningxia and stands on the Loess Plateau. This is a narrow mountain range, which generally runs north and south.
Known as "the south of the Yangtze River", Ningxia Plain is more than1/kloc-0 ~1200m above sea level, and its terrain gradually inclines from southwest to northeast. The Yellow River enters from Zhongwei, obliquely crosses the plain to the northeast, and exits through Shizuishan along the terrain. The plain has a deep soil layer and a flat terrain. ......& gt& gt
Question 3: What is the altitude of Yinchuan 1 100 meters? I measured it myself.
Question 4: What is the altitude of Yinchuan? The topography of Yinchuan city is divided into two parts: mountains and plains. The altitude is between1010m ~150m, the ground slope is about 2‰, and the soil layer is thick. The highest peak of Helan Mountain is 3 556 meters above sea level, which is a natural barrier to block the cold air in the northwest.
Question 5: What are the altitudes of Hohhot, Yinchuan and Lanzhou respectively? Which cities have altitude sickness and hypoxia? Why? The average elevation of the main urban area of Hohhot1050m.
The average elevation of the main urban area of Yinchuan is1110m.
The average elevation of the four districts in the main city of Lanzhou is 1500 ~ 1600 meters.
There should be no obvious altitude sickness in these places. Xining is 2300 meters above sea level. Few friends in the plains may feel unwell for a week or so due to physical reasons, and then they have no reaction, so they are not as exaggerated as you think.
Question 6: 1. At what altitude can the average person cause altitude sickness? 2. What are the altitudes of Yinchuan in Inner Mongolia and Alar in Xinjiang respectively? 30: 1- altitude sickness is a natural physiological reaction of human body to adapt to the changes of air pressure difference, low oxygen content and dry air caused by altitude. When the altitude reaches about 2700 meters, altitude sickness will occur. Symptoms of altitude sickness generally include headache, shortness of breath, chest tightness, anorexia, low fever, dizziness and fatigue. Some people appear because of low oxygen content: purple lips and fingertips, lethargy, hyperactivity, insomnia and other different manifestations. Some people appear because of dry air: rough skin, chapped lips, bleeding nostrils or blood clots.
The altitude of Yinchuan is between1010m ~1150m.
About 1000m in Baotou, Mongolia.
Alar, Xinjiang is about 800 meters.