Mapping global lake dynamics reveals the emerging roles of small lakes
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Mapping global lake dynamics reveals the emerging roles of small lakes. / Pi, Xuehui; Luo, Qiuqi; Feng, Lian; Xu, Yang; Tang, Jing; Liang, Xiuyu; Ma, Enze; Cheng, Ran; Fensholt, Rasmus; Brandt, Martin; Cai, Xiaobin; Gibson, Luke; Liu, Junguo; Zheng, Chunmiao; Li, Weifeng; Bryan, Brett A.
I: Nature Communications, Bind 13, 5777, 2022.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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T1 - Mapping global lake dynamics reveals the emerging roles of small lakes
AU - Pi, Xuehui
AU - Luo, Qiuqi
AU - Feng, Lian
AU - Xu, Yang
AU - Tang, Jing
AU - Liang, Xiuyu
AU - Ma, Enze
AU - Cheng, Ran
AU - Fensholt, Rasmus
AU - Brandt, Martin
AU - Cai, Xiaobin
AU - Gibson, Luke
AU - Liu, Junguo
AU - Zheng, Chunmiao
AU - Li, Weifeng
AU - Bryan, Brett A.
N1 - Publisher Copyright: © 2022, The Author(s).
PY - 2022
Y1 - 2022
N2 - Lakes are important natural resources and carbon gas emitters and are undergoing rapid changes worldwide in response to climate change and human activities. A detailed global characterization of lakes and their long-term dynamics does not exist, which is however crucial for evaluating the associated impacts on water availability and carbon emissions. Here, we map 3.4 million lakes on a global scale, including their explicit maximum extents and probability-weighted area changes over the past four decades. From the beginning period (1984–1999) to the end (2010–2019), the lake area increased across all six continents analyzed, with a net change of +46,278 km2, and 56% of the expansion was attributed to reservoirs. Interestingly, although small lakes (<1 km2) accounted for just 15% of the global lake area, they dominated the variability in total lake size in half of the global inland lake regions. The identified lake area increase over time led to higher lacustrine carbon emissions, mostly attributed to small lakes. Our findings illustrate the emerging roles of small lakes in regulating not only local inland water variability, but also the global trends of surface water extent and carbon emissions.
AB - Lakes are important natural resources and carbon gas emitters and are undergoing rapid changes worldwide in response to climate change and human activities. A detailed global characterization of lakes and their long-term dynamics does not exist, which is however crucial for evaluating the associated impacts on water availability and carbon emissions. Here, we map 3.4 million lakes on a global scale, including their explicit maximum extents and probability-weighted area changes over the past four decades. From the beginning period (1984–1999) to the end (2010–2019), the lake area increased across all six continents analyzed, with a net change of +46,278 km2, and 56% of the expansion was attributed to reservoirs. Interestingly, although small lakes (<1 km2) accounted for just 15% of the global lake area, they dominated the variability in total lake size in half of the global inland lake regions. The identified lake area increase over time led to higher lacustrine carbon emissions, mostly attributed to small lakes. Our findings illustrate the emerging roles of small lakes in regulating not only local inland water variability, but also the global trends of surface water extent and carbon emissions.
U2 - 10.1038/s41467-022-33239-3
DO - 10.1038/s41467-022-33239-3
M3 - Journal article
C2 - 36182951
AN - SCOPUS:85139173086
VL - 13
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
M1 - 5777
ER -
ID: 325016332