What are the knowledge points of aerial photography geography in China and Guizhou?

1, crops. The limiting factor of tomato planting in Xinjiang is (water source), and the main reasons for good tomato quality in Xinjiang are sufficient light and large temperature difference between day and night, which is conducive to the accumulation of organic matter. Among them, abundant sunshine is related to its geographical location (deep inland), less precipitation, more sunny days and weak atmospheric radiation to the sun. .

2. Glacier landforms. Tianshan Mountain has high altitude, obvious vertical temperature difference and many glacial landforms. Glacier erosion can form tongue-shaped ice bodies (such as ice buckets, ridges and tinder) extending downward, also known as glacier tongue. Due to global warming, the snow line is rising, and the glacier tongue is also showing a trend of shortening.

3. The topography of Xinjiang and its causes. There are Altai Mountain in the north, Kunlun Mountain in the south and Tianshan Mountain in the middle. The two largest basins in China (Junggar Basin and Tarim Basin) are surrounded by three mountains. The causes of "three mountains and two basins" in Xinjiang are: (Eurasian plate) and (Indian Ocean plate) extrusion collision.

4. River recharge. The "melting in summer and flourishing rivers" in the foothills of northwest China shows that the flood season of rivers is often (summer) and the type of river recharge is (melting water from mountains and snow).

5. City location. Because the northwest region lives inland, the precipitation is scarce, the alluvial fans in front of the mountain have sufficient water resources, flat terrain, fertile soil and developed agriculture and animal husbandry, which is conducive to the layout of traffic arteries and the gradual gathering of population to form settlements. Urumqi is the largest city farthest from the ocean in the world, and the nearest ocean is 2000 kilometers away. But it is also the largest city closest to the glacier, and the glacier at 100 km provides water for it.