白洋淀湿地气候对华北区域气候变化的响应
Response of Baiyangdian Wetland Climate to Climate Change in North China
摘要:
本文以华北核心区域河北省以及白洋淀所在区域观测资料为例，对近50年来两者气候变化趋势进行了对比研究，且利用逐日气象观测资料，对河北省和白洋淀湿地极端气候事件给出定量描述和诊断分析，说明白洋淀湿地气候对华北区域气候变化的响应。结果表明，区域气候变化会对湿地气候产生深刻的影响。第一，湿地气温变化相对平缓，气候变化将加大大气环流和水文循环过程，湿地的极端降水事件增多。第二，气候变化的暖干趋势将减少湿地生态系统中的水资源，使得湿地水资源短缺变得更加严重，威胁到系统的生物多样性。
Abstract:
Hebei Province and Baiyangdian region in the past 50 years, and makes use of the daily meteorological observation data. The extreme climatic events in Hebei Province and Baiyangdian wetland are quantitatively described and diagnosed, and the response of Baiyangdian wetland climate to climate change in North China is explained. The results show that regional climate change will have a profound impact on wetland climate. Firstly, the change of temperature in wetland is relatively gentle, the climate change will increase the atmospheric circulation and hydrological cycle, and the extreme precipitation events in wetland will increase. Second, the warming and drying trend of climate change will reduce wetland health. The shortage of wetland water resources becomes more serious because of the water resources in the system, which threatens the biodiversity of the system.
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