Here the water clean soil net, fertile land, gave birth to the vast expanse of the reed marshland serves, each hole crawled out from crab grazing; The Yangtze river has brought up off all kinds of aquatic products, fish fat crab strong; The pure land to grow out of the various pollution-free vegetables, melon and fruit; 30000 hectares beaches in the world at present is also one of the few wild birds park during the spring and autumn, when flying birds here, swan swam drag is listed, protected by rare migratory birds of 130, the number of birds DuoZhong border around 1 million. Especially the national level 1 animal protection in dongtan number in little swan was 3000 to 3500, and only from Australia, New Zealand, Japan and other countries of the transit migratory birds perched a total of 2, three million.. There are BaiE wild goose, green herons, egrets, in a black face Pi heron, type 2 protect birds.