State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
J Environ Sci (China). 2019 Jan;75:359-369. doi: 10.1016/j.jes.2018.05.018. Epub 2018 May 26.
Aquatic ecosystem sustainability around the globe is facing crucial challenges because of increasing anthropogenic and natural disturbances. In this study, the Tianchi Lake, a typical cold-water lake and a UNESCO/MAB (Man and Biosphere) nature reserve located in high latitude and elevation with the relatively low intensity of human activity was chosen as a system to examine the linkages between climate change and eutrophication. As a part of the UNESCO Bogda Man and Biosphere Reserve, Tianchi Lake has been well preserved for prevention from human intervention, but why has it been infected with eutrophication recent years? Our results show that climate change played a significant role in the eutrophication in the Tianchi Lake. Increased temperature, changed precipitation pattern and wind-induced hydrodynamic fluctuations in the summer season were suggested to make a major contribution to the accelerated eutrophication. The results also showed that the local temperature and precipitation changes were closely linked to the large-scale atmospheric circulation, which opens the door for the method to be applied in other regions without local climatic information. This study suggests that there is an urgent need to take into consideration of climate change adaptation into the conservation and management of cold-water lakes globally.
由于人为和自然干扰的增加，全球水生生态系统的可持续性正面临着严峻的挑战。在这项研究中，选择了天池——一个位于高纬度和高海拔地区的典型冷水湖，也是教科文组织人与生物圈（MAB）保护区，这里人类活动的强度相对较低，作为一个系统来研究气候变化和富营养化之间的联系。作为教科文组织博格达人与生物圈保护区的一部分，天池湖一直受到很好的保护，以防止人类的干预，但为什么近年来它会受到富营养化的影响呢？我们的研究结果表明，气候变化在天池湖的富营养化过程中起了重要作用。夏季气温升高、降水模式改变和风生水动力波动被认为是加速富营养化的主要原因。研究结果还表明，当地气温和降水变化与大尺度大气环流密切相关，这为在没有当地气候信息的情况下将该方法应用于其他地区开辟了道路。本研究表明，迫切需要将气候变化适应纳入全球冷水湖的保护和管理之中。
