Fig. 8: Indicator for Coastal Eutrophication Potential (ICEP) for the six large rivers in China in 2012 and 2050 (kg C-eq. km−2 day−1). | Nature Communications

Fig. 8: Indicator for Coastal Eutrophication Potential (ICEP) for the six large rivers in China in 2012 and 2050 (kg C-eq. km−2 day−1).

From: Accounting for interactions between Sustainable Development Goals is essential for water pollution control in China

Fig. 8

ICEP is used to assess whether SDG 14 “Life Below Water” is met at the river mouths. A positive ICEP value indicates that river export of nutrients is in excess over silica (Si), and thus indicates high potential for coastal eutrophication. A negative ICEP value indicates low potential for coastal eutrophication. Following the approach of ref. 43, we calculate ICEPs based on our modeled river export of dissolved nitrogen and phosphorus, and river export of Si from the Global NEWS-2 model68. For 2050, six scenarios are explored: baseline SSP5-RCP8.5 (Shared Socio-economic Pathway 5-Representative Concentration Pathway 8.5) and alternative SE (improved sewage treatment), AG (improved nutrient use efficiencies in agriculture), AG + SE (a combination of AG and SE), AG + SE + SFC (sustainable food consumption in addition to AG + SE), and AG + SE + SFC + CLI (climate mitigation in addition to AG + SE + SFC) scenarios.

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