Its distribution is limited to the southern slope of Qinling Mountains in Shaanxi Province, China, Minshan Mountain, Qionglai Mountain, Daxiangling Mountain, Xiaoxiangling Mountain and Liangshan Mountain in Sichuan, and it inhabits deciduous broad-leaved forest, mixed coniferous and broad-leaved forest and mountain bamboo forest belt at an altitude of 1400-3600 meters.
Giant pandas live in dense bamboo forests. The air is thin and foggy all the year round, and the temperature is below 20℃. Other factors will also affect the distribution and density of giant pandas in the wild: bamboo, topography, distribution of water sources, whether there are hiding places and nests for feeding cubs, and mountain conditions. Human disturbance is the main factor affecting the distribution of giant pandas at present.
Extended data
The intestinal flora of giant pandas can hardly degrade the fiber in bamboo, and they can't get the necessary energy from the fiber. Through research, it is determined that giant pandas mainly get energy from starch, hemicellulose and pectin in bamboo.
The reasons why giant pandas choose bamboo as their main food: Compared with other foods in the wild, bamboo is widely distributed and easy to obtain, and there are few competitors competing with giant pandas for food; Compared with other woody plants, bamboo contains a relatively high concentration of starch; The starch content of different parts of bamboo changes with the seasons, and giant pandas always choose the parts with high starch content in bamboo.
The highest content of starch and hemicellulose in bamboo is bamboo shoots, and the season when bamboo shoots appear is also the season when giant pandas are in estrus and give birth. The high content of starch and hemicellulose in bamboo shoots can supplement physical strength and gain weight for giant pandas in estrus and childbirth. In winter, without bamboo shoots and tender bamboo leaves, the starch content and soluble sugar content in bamboo poles will reach the highest point in a year.
Baidu encyclopedia-panda
People's Network-Why do giant pandas still like to eat bamboo?