Introduction to Nunejihai Wetland: Nunejihai Wetland covers an area of ​​50 hectares. It is translated as "the most beautiful place" in Yao language and is a typical plateau karst retention wetland. Wetlands play an important role in maintaining ecological balance, maintaining biodiversity and rare species resources, conserving water sources, preventing soil desertification and purifying the environment, so they are known as the "Kidney of the Earth"