A perspective on water quality in connected systems: modelling feedback between upstream and downstream transport and local ecological processes

Autor: Manqi Chang, Jan J. Kuiper, Annette B.G. Janssen, Robert J. Brederveld, Wolf M. Mooij, Fenjuan Hu, Ben Woodward, Dianneke van Wijk, Sven Teurlincx, Jan H. Janse, Inese Huttunen
Rok vydání: 2019
Předmět:
Zdroj: Current Opinion in Environmental Sustainability 40 (2019)
Current Opinion in Environmental Sustainability, 40, 21-29
Teurlincx, S, van Wijk, D, Mooij, W M, Kuiper, J J, Huttunen, I, Brederveld, R J, Chang, M, Janse, J H, Woodward, B, Hu, F & Janssen, A BG 2019, ' A perspective on water quality in connected systems : modelling feedback between upstream and downstream transport and local ecological processes ', Current Opinion in Environmental Sustainability, vol. 40, no. October, pp. 21-29 . https://doi.org/10.1016/j.cosust.2019.07.004
ISSN: 1877-3435
Popis: Highlights • Catchment pollution limits water-related ecosystem services such as food production. • Water flow transports energy, substances and organisms downstream. • Organism behaviour causes bidirectional transport across the catchment. • Humans are modifiers of water and organismal transport. • Coupled transport-ecosystem models are essential for water quality assessment. Food production for a growing world population relies on application of fertilisers and pesticides on agricultural lands. However, these substances threaten surface water quality and thereby endanger valued ecosystem services such as drinking water supply, food production and recreational water use. Such deleterious effects do not merely arise on the local scale, but also on the regional scale through transport of substances as well as energy and biota across the catchment. Here we argue that aquatic ecosystem models can provide a process-based understanding of how these transports by water and organisms as vectors affect – and are affected by – ecosystem state and functioning in networks of connected lakes. Such a catchment scale approach is key to setting critical limits for the release of substances by agricultural practices and other human pressures on aquatic ecosystems. Thereby, water and food production and the trade-offs between them may be managed more sustainably.
Databáze: OpenAIRE