The Dongying wetland near the Yellow River is a haven for many birds and plants. The special landform materializes out of the estuary where the river flows into the sea. Here's Zhao Yunfei again.

When the Yellow River flushes sand into the ocean, a magnificent spectacle is created. The intersection divides the water into yellow and blue, stretching to the skyline. The newly-formed wetland stacked by the mud and sand from the river serves as a natural reserve, providing a home to more than three hundred bird species. The endangered oriental stork is one of them. Doctor Zhao Yajie is on a routine patrol to check out the birds' habitat. Summertime is breeding season. Doctor Zhao's task is to make sure the newborns have a safe home.

ZHAO YAJIE, SENIOR ENGINEER YELLOW RIVER DELTA NATIONAL NATURE RESERVE "The Yellow River delta sits on two bird migration corridors-the central Pacific flyway and Asian-Australasian flyway. We have provided the migrating birds a stable and fine environment. It's a big deal to bird protection globally."

Satellite images show that sediment flushed out by the river creates about 4.4 square kilometers of new land per year. But the alluvial plain can't provide an ideal living environment for all species. Ecological protection is underway to create multiple landforms for the sake of biodiversity.

ZHU SHUYU, SENIOR ENGINEER YELLOW RIVER DELTA NATIONAL NATURE RESERVE "We constructed some high and low hills, some islands. There are deep water zones and shallow zones. This is a practice of the edge effect. Usually you'll find more diversified species on the edge or at the intersection of two landforms."

Due to sea water intrusion, the salted wetland at the river estuary is also a threat to certain water organisms and plants. The nature reserve has also conducted research to prevent soil salination.

ZHAO YAJIE, SENIOR ENGINEER YELLOW RIVER DELTA NATIONAL NATURE RESERVE "We should note that the Yellow River doesn't just serve human beings, it also provides a life spring to many other species on earth."

Dr. Zhao says next, more work should be done on wetland restoration and ecological compensation.

Tales along the Yellow River is about how people gathered to build homes, how their lives have flourished, how populations co-exist in one ecosystem, and how communities give back to the nature.

ZHAO YUNFEI DONGYING, SHANGDONG PROVINCE "Stretching more than five thousand kilometers, the Yellow River joins the Bohai Sea here in Shandong Province. Many Chinese are emotionally attached to their mother river. For thousands of Years, the Yellow River has been an icon of the country's civilization. And the story of man and nature continues. Zhao Yunfei, CGTN, Dongying, Shandong Province."