Bird Ecology And Bird Strike Risk Assessment At Zhalantun Genghis Khan Airport

The investigation of bird diversity at and around the airport is important to carry out bird strike prevention work for the newly built airport.Using line transect method and a fixed radius point count method,we investigated the bird diversity in the region of Genghis Khan Airport of Zhalantun and its surrounding area(with a radius of 8 km)at Inner Mongolia from January to December 2015.The results were on the below:(1)According to the survey,82 bird species were recorded,which belong to 31 families and 15 orders.(2)The birds at Zhalantun Gen Gi Khan airport was Tree Sparrow Passer montanus?Common Magpie Pica pica?Barn Swallow Hirundo rustica?White Wagtail Motacilla alba?The peak of bird species and quantity at Zhalantun Gen Gi Khan airport was 6:00-8:00 in the morning,the highest number of birds was 6 at 4:00-6:00 in the spring,the largest number of birds was 363 at 6:00-8:00 in the summer.(3)The analysis of bird community structure showed that the highest bird diversity index(0.740)and evenness index(0.819)were found in spring within the airport boundary,the highest dominance indexes(0.683)in winter and the highest average density(2.826 ind·hm-2)in summer.But for the area outside the boundary,the diversity index and the average density were both highest in summer of the wetland(1.576,28.600 ind hm-2),the evenness index was highest in winter of the grassland(0.902),and the dominance index was highest in winter of residential area(2.113).(4)We reassigned the dangerous value of bird species,and integrated 7 factors to calculate the hazard value depend on the previous studies,including the volume and quantity of birds,the number of occurrences,flight altitude,the distance from the airport,the number of transects occur and whether clustering.The results indicated that there were 14 serious threat species,such as Common Cormorant(Phalacrocorax carbo),Tree Sparrow(Passer montanus),Ruddy Shelduck(Tadorna ferruginea)and so on.Based on the results,we proposed advices and control measures for avoiding bird strikes of different seasons,areas and species,which provided important and scientific basis for future work at Zhalantun Genghis Khan Airport.