Fuwen river, a tributary of the Emei River, Chuanzhu village, Chengdu, China

1. Description of the area surrounding the biotope

Mount Emei is located on the southwestern edge of Sichuan Basin in China, between 29°16′-29°43′ north latitude and 103°10′-103°37′ east longitude. It stretches for 23 kilometers and covers an area of about 154 square kilometers.

The annual average rainfall of Mount Emei is 1922 mm and the annual average relative humidity is 85%. The hydrological location of Mount Emei belongs to the Dadu river and Qingyi river water system, and there are 5 natural rivers in the territory, namely Emei River, Linjiang River, Longchi River, Shihe River, and Huaxi River.

The habitat I described is Fuwen River, a tributary of the Emei River, in Chuanzhu village. The Chuanzhu village is located in the northwest of Emeishan City, adjacent to Emei Mountain, which is known as the world's natural and cultural heritage, with an altitude of 400-1400 meters. The forest coverage rate is as high as 91.1%, the internal ecological environment is good, and the vegetation coverage rate is high.

2. Description of the underwater landscape of the biotope

The water flow in the habitat is turbulent and the water depth is less than 1 meter. The water is clear and rich in oxygen. The bottom of the river is covered with huge pebbles and fragments of river rocks. The riverbed substrate is sandy, covered with dust and organic debris. Under the sunlight, the rocks are covered with algae, which provides an extra source of food for fish.

The rich oxygen content here makes fish like them very much. The small insects hidden in the algae become their main foods source. According to the surrounding fishermen, if you are lucky, you can see the Chinese giant salamander, a famous protected animal in China.

3. Description of the parameters of the habitat

The Emei River Basin has a subtropical humid monsoon climate, warm in winter and cool in summer, four distinct seasons, abundant rainfall, annual rainfall of about 1,500 mm, and annual average temperature of 18°C. The frost-free period lasts for more than 290 days, with little sunshine. The water parameters are pH 7.6 and GH 4.

4. List of fishes and invertebrates occurring in the nature biotope

Rhinogobius szechuanensis

Trilophysa bleekeri

Belligobio pengxianensis

Opsariichthys evolans

5. List of plants found in the nature biotope

There are no plants in the habitat I described.

6. Threats to the ecology of the biotope

There is a village around this stream. Some villagers wash clothes in the stream, and some children will play in the stream with their parents and catch fish during holidays. There are also some nearby villagers who use nets to catch fish. I felt very uncomfortable seeing the damage to this river, but I couldn't stop it. I only hope that this beautiful stream can continue to exist. All I want to do is to record this beautiful moment. I hope everyone can take care of the environment and this beautiful stream.

7. Reference

Tour guide of Mount Emei

http://www.ems517.com

群落生境