基于200年硅藻记录的北半球山地湖泊生态研究

Ecological Studies of Montane Lakes in the Northern Hemisphere Based on Diatom Records over the Past 200 Years

山地湖泊远离人为直接干扰,对全球变化响应敏感,其环境演变是当前国际湖沼学的研究热点。硅藻作为一种生物指标,因其对湖泊生态环境变化的良好指示作用而受到学术界的广泛关注。通过对基于200年硅藻记录的北半球山地湖泊生态研究的梳理,发现在气候总体变暖和大气氮沉降驱动下,北半球山地湖泊生态普遍发生了突变,且突变时间存在着区域差异。然而,青藏高原作为“地球第三极”,其湖泊生态的演变及其驱动机制尚存在争论。因此,建议未来应加强对青藏高原湖泊生态演变的研究,从而为评估和预测全球变化提供科学依据。

Montane lakes,far away from direct anthropogenic disturbances,are sensitive to global changes,and their environ‐mental evolution is a hot topic in limnology.Diatom,as a biological indicator,has received widespread attention from the academic community for its excellent ability to indicate changes in the lake ecology.This paper reviewed the history of montane lake ecology based on diatoms in the Northern Hemisphere over the past 200 years.It was found that most of the mountain lake ecology had changed abruptly,driven by general climate warming and atmospheric nitrogen deposition,and there were regional differences in shift time.However,the evolution of lake ecology and its driving mechanism in the Tibetan Plateau("the Third Pole of the earth")are still debated.Therefore,it is suggested that the study of lake ecology evolution in the Tibetan Plateau should be strengthened.This will provide a scientific baseline for assessing and predicting global changes.