Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 558334
Title Cost-effective management of coastal eutrophication: A case study for the yangtze river basin
Author(s) Strokal, M.; Kahil, T.; Wada, Y.; Albiac, J.; Bai, Z.; Ermolieva, T.; Langan, S.; Ma, L.; Oenema, O.; Wagner, F.; Zhu, X.; Kroeze, C.
Source Resources, Conservation and Recycling 154 (2020). - ISSN 0921-3449
DOI https://doi.org/10.1016/j.resconrec.2019.104635
Department(s) Water Systems and Global Change
WIMEK
Sustainable Soil Use
Regional Development and Spatial Use
Publication type Refereed Article in a scientific journal
Publication year 2020
Keyword(s) Cost-effective management - Eutrophication - Integrated modelling - Nitrogen and phosphorus - Nutrient management - Waste recycling
Abstract

Many water resources are threatened with nutrient pollution worldwide. This holds for rivers exporting increasing amounts of nutrients from the intensification of food production systems and further urbanization. This riverine nutrient transport causes coastal eutrophication. This study aims to identify cost-effective management options to simultaneously reach environmental targets for river export of nitrogen and phosphorus by the Yangtze River (China) in 2050. A newly developed modelling approach is used that integrates the Model to Assess River Inputs of Nutrients to seAs (MARINA) with a cost-optimization procedure, and accounts for socio-economic developments, land use and climate changes in a spatially explicit way. The environmental targets for river export of nutrients aim to reduce the gap between baseline and desirable nutrient export. Our baseline is based on MARINA projections for future river export of nutrients, while the desirable nutrient export reflects a low eutrophication potential. Results show the possibilities to close the gap in river export of both nutrients by 80–90% at a cost of 1–3 billion $ per year in 2050. Recycling of animal waste on cropland is an important cost-effective option; reducing synthetic fertilizer inputs provides an opportunity to compensate for the additional costs of the recycling and treatment of manure and wastewater. Our study provides new insights on the combination of cost-effective management options for sub-basins of the Yangtze. This can support the design of cost-effective and sub-basin specific management options for reducing future water pollution.

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