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Human imprints on global riverfronts
Fanxuan Zeng1,2, Chunqiao Song3,4,5,6, R Iestyn Woolway7
1State Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China.
Nature Communications
|July 18, 2026
Summary
Nearly 20% of global riverfronts show human impact, mainly from agriculture and urban development. This riverfront modification poses significant threats to water quality and biodiversity worldwide.
Area of Science:
- Environmental Science
- Remote Sensing
- Conservation Biology
Background:
- Human activities significantly alter riverfront ecosystems globally.
- Understanding the extent and drivers of these modifications is crucial for effective river management.
Purpose of the Study:
- To create a high-resolution global map of riverfront modifications.
- To identify the primary drivers and spatial patterns of anthropogenic riverfront alterations.
Main Methods:
- Utilized satellite imagery and deep learning techniques.
- Mapped 7.52 million kilometers of global riverfronts.
- Quantified anthropogenic modifications, categorizing them by land use.
Main Results:
- Approximately 20% of global riverfronts are anthropogenically modified.
- Agriculture (13.43%) and built-up areas (6.29%) are the dominant modification types.
- A significant modification belt exists in Africa and Eurasia, with six times higher imprint densities.
Conclusions:
- Lateral riverfront fragmentation is a pervasive human pressure linked to declining water quality and biodiversity.
- Environmental and socio-economic factors influence modification patterns.
- Urgent need to balance development with riverfront ecological integrity.
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