51. The Characteristics of Climate Change and Adaptability Assessment of Migratory Bird Habitats in Wolonghu Wetlands
- Author
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Jun Ma, Ting Xu, Li Meng, Yan Dengming, Wuxia Bi, Lin Wang, Baisha Weng, and Wang Lina
- Subjects
0106 biological sciences ,geography ,geography.geographical_feature_category ,010504 meteorology & atmospheric sciences ,Ecology ,010604 marine biology & hydrobiology ,Climate change ,Wetland ,01 natural sciences ,Water level ,Extreme weather ,Habitat ,Environmental Chemistry ,Climate model ,Precipitation ,Physical geography ,Restoration ecology ,0105 earth and related environmental sciences ,General Environmental Science - Abstract
The Wolonghu Wetlands is an essential ecological barrier to resist southward expansion of the Horqin Desert, also is an important stopover and energy supplement site for the global birds migrating in the route of East Asia to Australia. This paper aims to clarify the characteristics of Climate Change and adaptability assessment of migratory bird habitats in Wolonghu Wetlands. The study used the historical measured data of the past 60 years and the predicted results by CMIP5 climate model to analyze the variation and development trend of temperature and precipitation in history and future. The impacts of extreme weather events on migratory bird habitats have been analyzed as well. The results show that: (1) The water level is one of the important factors affecting the birds and their habitat in Wolonghu Wetlands. The water level dropped from 88.9 m to 87.83 m, and the number of birds raised by 2orders of magnitude. (2) The whole climate is getting warmer and wetter. (3) In the past 60 years, extreme precipitation accounted for 19% of total precipitation, and 7.7% in July. In the next 30 years, extreme precipitation accounts for 13.9% of the total precipitation in the RCP4.5 scenario, and 10.1% in July. Compared with history, extreme precipitation is more concentrated in July. (4) In the past 60 years, no severe drought and extraordinary drought occurred in summer. The occurrence probability of above extreme events in the next 30 years is 1.83%. This study can provide some references for relevant management departments of Wolonghu Wetlands to formulate wetland protection and restoration measures.
- Published
- 2018
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