湖沼带
生物地球化学循环
卫星图像
碳循环
自然地理学
环境科学
卫星
丰度(生态学)
土地覆盖
地表水
遥感
地质学
水文学(农业)
土地利用
海岸带
生态系统
地理
生态学
海洋学
生物
环境工程
工程类
航空航天工程
岩土工程
作者
Charles Verpoorter,Tiit Kutser,David A. Seekell,Lars J. Tranvik
摘要
An accurate description of the abundance and size distribution of lakes is critical to quantifying limnetic contributions to the global carbon cycle. However, estimates of global lake abundance are poorly constrained. We used high-resolution satellite imagery to produce a GLObal WAter BOdies database (GLOWABO), comprising all lakes greater than 0.002 km2. GLOWABO contains geographic and morphometric information for ~117 million lakes with a combined surface area of about 5 × 106 km2, which is 3.7% of the Earth's nonglaciated land area. Large and intermediate-sized lakes dominate the total lake surface area. Overall, lakes are less abundant but cover a greater total surface area relative to previous estimates based on statistical extrapolations. The GLOWABO allows for the global-scale evaluation of fundamental limnological problems, providing a foundation for improved quantification of limnetic contributions to the biogeochemical processes at large scales.
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