Diatom Response to Global Warming in Lake Douhu, Southeast China
Diatom Response to Global Warming in Lake Douhu, Southeast China
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中国东南部斗湖硅藻对全球变暖的响应
DOI：
10.1111/1755-6724.14294
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Jule XIAO
中科院分区：
文献类型：
--
作者：
Jingjing LI;Luo WANG;Qi CAO;Patrick RIOUAL;Guoliang LEI;Binggui CAI;Jiaoyang ZHANG;Yafei ZOU;Yao YAN;Xiaoqiao WAN;Jule XIAO
大量的湖泊沉积记录表明，全球变暖是导致北半球湖泊硅藻群落发生显著变化的主要因素。然而，自1850年以来，由于人类活动的加剧，一些学者强调，湖泊营养水平的上升可能是硅藻群落变化的主要原因。这场辩论仍在继续。为了避免陷入硅藻变化与中高纬度湖泊季节循环之间的复杂关系，我们选择了一个位于低纬度的湖泊，那里的硅藻与温度的关系不是间接的，而是直接的。硅藻记录跨越了过去大约100年，揭示了从1900年到1985年，细粒奥拉塞拉的丰度增加，取代了以前占主导地位的二疑奥拉塞拉。这些变化与全球气温上升的趋势一致。1985年以来，小型星形盘藻和底栖硅藻的比例有所增加，而细粒奥拉塞氏菌的比例有所下降。这一最新变化是由进一步的全球变暖引起的。结果表明，气候变暖是斗湖硅藻群落变化的主要原因。
A large number of lacustrine sedimentary records indicate that global warming is the main factor leading to significant changes in diatom communities in lakes of the northern hemisphere. However, due to the intensification of human activities since 1850, some scholars have emphasized that the increasing lake trophic level may be the main reason for the changes in diatom communities. The debate is ongoing. In order to avoid falling into the complex relationship between diatom changes and the seasonal cycle that characterizes lakes in mid and high latitudes, we chose a lake located at a low latitude, where the relationship between diatoms and temperature is not indirect but direct. The diatom record spans the past ca. 100 years and reveals that the abundance ofAulacoseira granulataincreased from 1900 until 1985, replacing the previously dominantAulacoseira ambigua. These changes are in agreement with the increasing trend in global temperature. Since 1985, the percentages of the small‐celledDiscostella stelligeraand the benthic diatomNavicula heimansioideshave increased, whileAulacoseira granulatahas decreased. This latest shift is caused by further global warming. We conclude that warming is the main factor leading to changing diatom communities in Douhu Lake.
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影响因子：
2.4
作者：
C. Reynolds;J. B. Reynolds
通讯作者：
C. Reynolds;J. B. Reynolds
影响因子：
3.7
作者：
Michelutti N;Wolfe AP;Cooke CA;Hobbs WO;Vuille M;Smol JP
通讯作者：
Smol JP
影响因子：
1
作者：
C. Reynolds
通讯作者：
C. Reynolds
影响因子：
2
作者：
Joshua R. Thienpont;B. Ginn;B. Cumming;J. Smol
通讯作者：
Joshua R. Thienpont;B. Ginn;B. Cumming;J. Smol
影响因子：
2.3
作者：
S. Jha;S. B. Chavan;G. Pandit;S. Sadasivan
通讯作者：
S. Jha;S. B. Chavan;G. Pandit;S. Sadasivan