Ecosystem Management Along Ephemeral Rivers: Trading Off Socio-Economic Water Supply and Vegetation Conservation under Flood Regime Uncertainty
DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Arnold, S. | |
dc.contributor.author | Attinger, S. | |
dc.contributor.author | Frank, K. | |
dc.contributor.author | Baxter, P. | |
dc.contributor.author | Possingham, H. | |
dc.contributor.author | Hildebrandt, A. | |
dc.date.accessioned | 2021-12-23T16:21:00Z | - |
dc.date.available | 2021-12-23T16:21:00Z | - |
dc.date.issued | 2016 | |
dc.identifier.issn | 15351459 | |
dc.identifier.uri | https://osnascholar.ub.uni-osnabrueck.de/handle/unios/13681 | - |
dc.description.abstract | In ecosystems driven by water availability, plant community dynamics depend on complex interactions between vegetation, hydrology, and human water resources use. Along ephemeral riverswhere water availability is erraticvegetation and people are particularly vulnerable to changes in each other's water use. Sensible management requires that water supply be maintained for people, while preserving ecosystem health. Meeting such requirements is challenging because of the unpredictable water availability. We applied information gap decision theory to an ecohydrological system model of the Kuiseb River environment in Namibia. Our aim was to identify the robustness of ecosystem and water management strategies to uncertainties in future flood regimes along ephemeral rivers. We evaluated the trade-offs between alternative performance criteria and their robustness to uncertainty to account for both (i) human demands for water supply and (ii) reducing the risk of species extinction caused by water mining. Increasing uncertainty of flood regime parameters reduced the performance under both objectives. Remarkably, the ecological objective (species coexistence) was more sensitive to uncertainty than the water supply objective. However, within each objective, the relative performance of different management strategies was insensitive to uncertainty. The best' management strategy was one that is tuned to the competitive species interactions in the Kuiseb environment. It regulates the biomass of the strongest competitor and, thus, at the same time decreases transpiration, thereby increasing groundwater storage and reducing pressure on less dominant species. This robust mutually acceptable strategy enables species persistence without markedly reducing the water supply for humans. This study emphasises the utility of ecohydrological models for resource management of water-controlled ecosystems. Although trade-offs were identified between alternative performance criteria and their robustness to uncertain future flood regimes, management strategies were identified that help to secure an ecologically sustainable water supply. Copyright (c) 2014 John Wiley & Sons, Ltd. | |
dc.description.sponsorship | Helmholtz Impulse and Networking Fund through Helmholtz Interdisciplinary Graduate School for Environmental Research (HIGRADE); Postdoctoral Research Fellowship Scheme; University of QueenslandUniversity of Queensland; Australian Centre of Excellence for Risk Analysis, Commonwealth Environment Research Facility (Applied Environmental Decision Analysis); Australian Research CouncilAustralian Research Council; project AquaDiva, part of the `ProExzellenz' Initiative from the German federal state of Thuringia; This work was kindly supported by Helmholtz Impulse and Networking Fund through Helmholtz Interdisciplinary Graduate School for Environmental Research (HIGRADE), the Postdoctoral Research Fellowship Scheme, and the Early Career Research Grant of The University of Queensland to S. A. P. W. J. B. and H. P. P. were supported by the Australian Centre of Excellence for Risk Analysis, Commonwealth Environment Research Facility (Applied Environmental Decision Analysis), and the Australian Research Council. A. H. was supported by the project AquaDiva, part of the `ProExzellenz' Initiative from the German federal state of Thuringia. | |
dc.language.iso | en | |
dc.publisher | WILEY-BLACKWELL | |
dc.relation.ispartof | RIVER RESEARCH AND APPLICATIONS | |
dc.subject | Acacia erioloba | |
dc.subject | arid | |
dc.subject | BASIN | |
dc.subject | CLIMATE-CHANGE | |
dc.subject | DYNAMICS | |
dc.subject | ECOHYDROLOGY | |
dc.subject | Environmental Sciences | |
dc.subject | Environmental Sciences & Ecology | |
dc.subject | EXTRACTION | |
dc.subject | Faidherbia albida | |
dc.subject | GAP DECISION-THEORY | |
dc.subject | GROUNDWATER | |
dc.subject | IMPACTS | |
dc.subject | info-gap decision theory | |
dc.subject | RESOURCES | |
dc.subject | RISK | |
dc.subject | robust decision making | |
dc.subject | species coexistence | |
dc.subject | Tamarix usneoides | |
dc.subject | Water Resources | |
dc.title | Ecosystem Management Along Ephemeral Rivers: Trading Off Socio-Economic Water Supply and Vegetation Conservation under Flood Regime Uncertainty | |
dc.type | journal article | |
dc.identifier.doi | 10.1002/rra.2853 | |
dc.identifier.isi | ISI:000372354700001 | |
dc.description.volume | 32 | |
dc.description.issue | 3 | |
dc.description.startpage | 219 | |
dc.description.endpage | 233 | |
dc.contributor.orcid | 0000-0001-7755-996X | |
dc.contributor.orcid | 0000-0001-7755-996X | |
dc.contributor.orcid | 0000-0001-8643-1634 | |
dc.contributor.orcid | 0000-0002-2769-0692 | |
dc.contributor.researcherid | B-1337-2008 | |
dc.contributor.researcherid | R-8310-2019 | |
dc.contributor.researcherid | J-7062-2012 | |
dc.contributor.researcherid | D-6490-2015 | |
dc.identifier.eissn | 15351467 | |
dc.publisher.place | 111 RIVER ST, HOBOKEN 07030-5774, NJ USA | |
dcterms.isPartOf.abbreviation | River Res. Appl. | |
crisitem.author.dept | Institut für Umweltsystemforschung | - |
crisitem.author.deptid | researchcenter5 | - |
crisitem.author.orcid | 0000-0002-2769-0692 | - |
crisitem.author.parentorg | Universität Osnabrück | - |
crisitem.author.netid | FrKa908 | - |
Seitenaufrufe
4
Letzte Woche
0
0
Letzter Monat
1
1
geprüft am 06.06.2024