ArticleScience advances2026
Dynamic safe nitrogen boundary for maintaining surface water quality in China.
Article in Science advances, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
Nitrogen plays a critical role in Earth's biogeochemical cycles, acting as both an essential nutrient for life and an environmental pollutant. Managing nitrogen use within safe boundaries is crucial for achieving the Sustainable Development Goals, particularly under the pressures of a growing global population. Here, we quantified the temporal dynamics in the safe boundary for nitrogen input to the human-nature system in view of surface water quality in China, driven by changes in management practices and runoff over the period of 1980 to 2020. Insufficient nitrogen management in the human-nature system led to a reduction in the safe nitrogen boundary from 27 Tg N year
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