In early spring, the reporter came to Xiuqia Village, Duohe Mao Township, Zeku County, Huangnan Prefecture, Qinghai Province. The average altitude here is 3600 meters. The Zequ River, a primary tributary of the Yellow River, flows through the village, and wetlands are dotted along the river. This is Dorje's hometown, where the Guanxiu Wetland, which he has guarded for 22 years, is located. When I saw Dorje, he was wearing a long black cotton coat and sitting on the top of the mountain beside the wetland to observe the habitat of water birds. After years of patrolling, his skin became dark. After slowly sipping hot milk tea, he took out his telescope from his small blue satchel. "Look, that's a little swan, that's a spotted goose, and in more than 20 days, the black-necked crane will also come!" Dorje handed the telescope to the reporter, "Last year, a pair of black-necked cranes built their nest on a grassy beach surrounded by water on all sides, but after a heavy rain, the river rose and the bird's nest was about to be submerged. I saw this scene while patrolling, so I quickly went home to take materials, made a simple bird's nest for them, and gently placed the bird's eggs inside. Unexpectedly, this pair of black-necked cranes recognized the new home I built, and the young birds successfully hatched. Look, that simple bird's nest is still there!" Looking through Dorje's fingers, the simple bird's nest stands out in the middle of the frozen river. Dorje said that his main task recently is to repair and reinforce the bird's nest while the river is still thawing, and then pick up the garbage around the grassland to provide a comfortable and clean living environment for the birds who are coming to roost and breed. For Dorje, this beautiful wetland is his common home with the birds, and he has the obligation to protect this beautiful home. Today, at the age of 72, Dorje has handed over the baton of an ecological ranger to his son, but he still insists on daily patrols. Under his careful protection, the environment of Guanxiu Wetland is getting better and better. "The ecological environment is better, and there are more wild animals!" Dorje took out his mobile phone and displayed a video taken by himself. The Tibetan fox in the picture is charmingly naive, not afraid of the camera at all. The report of the 20th National Congress of the Communist Party of China proposed that Chinese path to modernization is a modernization in which man and nature coexist in harmony. In Qinghai, there are still many herdsmen like Duojie who guard their beautiful homes. Up to now, the number of ecological stewards in Qinghai Province has reached 145100. They respect nature in the simplest form and cherish the grasslands that have been living for generations like protecting their own eyes. After saying goodbye to Dorje, the reporter continued to move south. Along the way, he saw that the grassland vegetation coverage was very good, like a layer of carpet. After more than two hours, cross the sign "You have arrived at the most beautiful grassland, please take the garbage with you" and come to Taoheyuan National Wetland Park located in Henan Mongolian Autonomous County, Huangnan Prefecture. "Dou Gejia, an ecological ranger, has just completed a day's patrol mission." During the patrol, no abnormalities were found. "He carefully recorded in the patrol log," The environment has changed too much. The once exposed black soil beaches have been covered with dense grass again, and there have been more rare blue sheep before. These are all signs of a better ecological environment. "On the next screen, the big data platform continues to monitor the status of local ecological resources, Click anywhere on the map to find information about the soil nutrient status, water area distribution, major meteorological indicators over the years, dominant plants, toxic plant species, and wild animal species in the area