Accounting for marine ecosystems in China may offer greater environmental and economic sustainability

Gaby Clark
scientific editor

Robert Egan
associate editor

A Perspective proposes a pathway to improvements in sustainability of marine ecosystems and resources in China. Based on environmental accounting used in China's terrestrial ecosystems, the approach would implement policy and governance to ensure accountability for sustainable use of marine systems.
in PNAS Nexus, Laurence J. McCook and colleagues argue that the ecosystem goods and services provided to the nation by oceans and coastal ecosystems—including seagrass beds, salt marshes, coral reefs, and mangrove forests—are immense. These services include atmospheric regulation, carbon storage, and coastal protection, as well as cultural, recreational, and aesthetic values. However, these services have been degraded by habitat loss, pollution, climate change, and overfishing.
Although the value of nature goes far beyond its monetary value, recognizing even minimum monetary values can drive and finance much stronger protection. The Perspective reviews multiple approaches that could be used to assess marine natural capital in China, and shows that developments in high-level policy are strongly supportive.
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Healthy coral reefs, such as this one in the South China Sea, can provide valuable economic service to people, including supporting fisheries and seafood, tourism attractions, and coastal protection. Credit: L.McCook -
Millions of tourists visit southern China's coastal areas each year, making vital contributions to local economies. However, previous estimates of the value of marine ecosystem services in China have not included tourism revenue. Credit: L.McCook -
Fringing coral reefs in southern China previously provided valuable economic benefits to the communities, including fisheries, gleaning for seaweeds and invertebrates, and vital protection against storm waves and flooding. However, impacts from over-fishing, dredging and construction, pollution and climate change have damaged the ecosystems, and the economic benefits they bring. Credit: L.McCook
According to the authors, nationwide, province-based ocean accounting and policy frameworks would not only improve the environmental and economic sustainability of marine ecosystems, but would also improve food security and help meet China's international commitments, including the Convention on Biodiversity and the Sustainable Development Goals.
In addition, the authors say, ocean accounting with supporting policy and governance frameworks would support China's long-term eco-civilization goals and position China as a global leader in sustainable ocean management.
More information: Marine ecosystem services and natural capital in China: Opportunities for improved understanding, valuing, and policy, PNAS Nexus (2025).
Journal information: PNAS Nexus
Provided by PNAS Nexus