The temperature has dropped to 30 degrees below zero. But that doesn’t stop the fishermen of Songyuan City in Jilin Province. Each morning, they get up early and rush to Chagan Lake with a group of horses. The fishermen use the horses to help pull fishing nets out of the frozen (结冰的) lake.

For centuries, those living around Chagan Lake have kept alive the tradition of ice fishing. They dig holes through the thick ice and use a huge net to catch winter fish in the freezing waters. This special method has been listed as an intangible cultural heritage (非物质文化遗产).

Every year in December, there is a winter fishing festival, which marks the beginning of the winter fishing season. Over 20 activities are held during the festival, such as winter sports competitions, nature watching, and the selling of the first-caught fish.

None of the tourists at this year’s festival would ever imagine that Chagan Lake used to be only tens of square kilometers in size. In the past, there was little rainfall and the lake grew smaller over time. Also, overfishing is one of the main reasons.

To bring Chagan Lake’s beauty back, the government used a lot of different methods. They brought in water from the Songhua River, grew more plants, and kept the water clean. The lake now covers about 500 square kilometers, and fish numbers have returned to a normal level. Now, an increasing number of tourists flock to the lake each year to experience the ancient ice-fishing tradition.

There are many wetlands in China and some of them have become the world’s important wetlands.

The Chinese Yellow Sea Wetlands (中国黄海湿地) are among them. They are in Yancheng, Jiangsu Province. They are home for many different kinds of animals. The world’s largest Milu Deer Nature Reserve is in them. More than 700 milu deer (麋鹿) live freely there. There are not many red-crowned cranes in the world, but every winter you can see some in the Red-crowned Crane Nature Reserve in the Yellow Sea Wetlands.

The temperature in the wetlands is usually neither too high nor too low (neither…nor…既不……也不……). There is a lot of rain and sunshine, too. They are really good places for wildlife. Offering food and home for some special kinds of animals is not the only reason why we need to protect wetlands. Wetlands are important because they also prevent flood. But some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife.

Luckily, more and more people are beginning to realize the importance of wetlands and wildlife. Every year, on February 2nd, many activities are held to tell people more about wetlands.