articleThe InnovationJan 18, 2025GOLD OA

Global trends and regime state shifts of lacustrine aquatic vegetation

JLJuhua LuoHDHongtao DuanYXYing XuMSMing ShenYZYunlin Zhang

Chinese Academy of Sciences · Nanjing Institute of Geography and Limnology · +7 more institutions

PubMed
Indexed incrossrefdoajpubmed

Abstract

Aquatic vegetation (AV) is vital for maintaining the health of lake ecosystems, with submerged aquatic vegetation (SAV) and floating/emergent aquatic vegetation (FEAV) representing clear and shaded states, respectively. However, global SAV and FEAV dynamics are poorly understood due to data scarcity. To address this gap, we developed an innovative AV mapping algorithm and workflow using satellite imagery (1.4 million Landsat images) from 1989 to 2021 and created a global database of AV across 5,587 shallow lakes. Our findings suggest that AV covers 108,186 km2 on average globally, accounting for 28.9% (FEAV, 15.8%; SAV, 13.1%) of the total lake area. Over two decades, we observed a notable transition: SAV…

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49
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100%
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Authors

14

Topics & keywords

Topics
Keywords
  • Eutrophication
  • Vegetation (pathology)
  • Aquatic ecosystem
  • Environmental science
  • Ecosystem
  • Global warming
  • Climate change
  • Physical geography
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