Waterbirds Diversity Monitoring And Management Suggestions For Sichuan Mianyang Sanjiang Lakes National Wetland Park

Waterbirds not only participate in the material energy circulation of wetland ecosystem,but also play an important role in monitoring wetland quality.And It can not only provide scientific basis for water bird protection,but also provide reference for wetland environmental protection and management.The water birds in Sichuan Mianyang Sanjiang Lakes National Wetland Park were investigated by line transects methods from October 2016 to March 2018.The diversity of waterbirds,the migration dynamics of waterbirds and the impact of human activity interference on water birds in this area were analyzed.Finally,the corresponding protection and management suggestions were put forward.The main results are as follows:(1)According to the survey,the total number of water birds in the Sichuan Mianyang Sanjiang Lakes National Wetland Park has been recorded to 129,847 of two years of monitoring,with the maximum retention method recorded to 9695 water birds.And 63 species of water birds recorded,belong to 7 orders and 12 families,with 23.26 percent of the total water birds in China.Among them,the number of water birds of Anseriformes birds occupies an absolute advantage in 7046 water birds in the Wetland Park,accounting for 73% of the total number.According to the birds divided by geographical region,there were 51 species of paleartics,4 species of oriental and 8 species of wide distributive species.Within the national nature reserve of Sichuan Mianyang Sanjiang Lakes National Wetland Park,birds are abundant.Three spices(Aythya ferina,Aythya fuligula,Larus ridibundus)were dominant with high quantity during our investigation.In addition,there are 15 common species and 45 rare species.Among these species,1 was listed as first-grade national protective animals in China,and 4 as second-grade,and 11 spices were included in key protective animals in Sichuan Province.(2)The waterbirds in Sichuan Mianyang Sanjiang Lakes National Wetland Park are mainly migratory birds,so the number and species of the wetland park generally show a trend of increasing first and then decreasing around the winter.Migrating waterbirds are mainly concentrated in autumn and spring.The first arrival of the wetland park was the herons and the waders,Anas platyrhynchos,Anas poecilorhyncha of Anseriformes,but most of the birds moved out of the wetland park after a short stay.The latter is for most geese and ducks,gulls and cranes.In addition to a few species of waders in Wetland park,most of them will make a short stay in the wetland park during spring and autumn.From the main habitats and feeding places,it can be seen that the beach sandbank region and the deep water reservoir area are the high habitat for the selection rate of water birds.The number and quantity of water birds in the beach sandbar area are the most.The number and the species of water birds in the shal ow water rivers are the least.(3)There are some problems in wetland parks,such as bridge maintenance,dredging at the bottom of the lake,construction of hydrophilic trestle and cruise ship.The analysis shows that the construction of the pleasure boat and the hydrophilic plank road has certain effects on the waterfowl in its environment.The total number and species of waterbirds in the whole area are reduced by the above disturbance.This paper analyzes the impact of human activities on waterbirds,and puts forward several suggestions for the management and protection:(1)strengthening government functions and construction of wetland parks.(2)Strengthening propaganda.(3)Establishing observation points for migratory birds and strengthen the training of professional and technical personnel in wetlands.(4)Strengthening the construction of habitats.(5)Strengthening scientific research and monitoring.