Introduction

Gaomei Wetland located on the south of the mouth of Dajia River is a land mixed with both sand and soil textures and comes in 1,500 acres. That explains why it has complicated yet rich wetland ecology and possesses the largest group of Bolboschoenus planieulmis in Taiwan. Due to diverse geographical features, the species of its ecology is quite abundant. Every year around fall and winter, large flocks of migrating birds would come here for either short or long stay over the winter, serving as the best spot for bird-watching.