Saving the Baltic Sea, the Inland Waters of Its Drainage Basin, or Both? Spatial Perspectives on Reducing P-Loads in Eastern Sweden

Andersson, Ingela; Jarsjö, Jerker; Petersson, Mona

doi:10.1007/s13280-014-0523-x

Cited by 10 publications

(6 citation statements)

References 30 publications

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“…The near-complete lack of phosphorous concentration response (Figure 3b; dashed red line) to the land-surface and surface-water oriented measures is consistent with dominant contributions from subsurface legacy sources, which are not affected by these measures. Such legacy source contributions can also more generally explain failures to meet WFD-related goals in the regional Norrström basin (Andersson, Jarsjö, & Petersson, 2014;Darracq et al, 2008) and elsewhere in Sweden (Destouni et al, 2017).…”

Section: Management Implicationsmentioning

confidence: 99%

Zones of untreatable water pollution call for better appreciation of mitigation limits and opportunities

Destouni

Jarsjö

2018

WIREs Water

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This opinion piece addresses subsurface legacy sources and their role in mitigation of large‐scale water pollution and eutrophication. We provide a mechanistic theoretical basis and concrete data‐based exemplification of dominant contributions from such sources to total recipient loads. We specifically develop a diagnostic test to detect such contributions, recognizing that they are inaccessible and associated with long transport times that tend to evade detection when homogeneous catchment models are calibrated to typically heterogeneous catchments. Dominant legacy‐source contributions are also in practice untreatable within the commonly short time frames given for compliance with environmental regulation. We therefore argue that, for considerable water quality improvements to be achieved within such short time frames, mitigation measures need to be spatially differentiated and directed to (sub)catchments without major legacy sources. The presented diagnostic test identifies dominant prevalence of such sources where there is linear temporal correlation between the nutrient/pollutant loads and the water discharges from a (sub)catchment. Confidence in this identification may be strengthened by independent quantification of long transport times and records of temporally extended presence of nutrient/pollutant sources in the same (sub)catchment. This article is categorized under: Science of Water > Water Quality Engineering Water > Planning Water

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Section: Management Implicationsmentioning

confidence: 99%

Zones of untreatable water pollution call for better appreciation of mitigation limits and opportunities

Destouni

Jarsjö

2018

WIREs Water

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“…Despite such cautionary realities, the role of models will be more and more important over the next decade in making catchment management and policy decisions to identify critical source areas and target BMPs and evaluate effects of climate change. Thus, model evaluation and uncertainty is essential and should be clearly documented in any model development (Beven 2006 ; Reichert and Mieleitner 2009 ; Andersson et al 2014 ). It is, therefore, critical that any use of non-point source models must be associated with data collection and monitoring to further improve process representation in models and to test model estimates (Oreskes et al 1994 ; Jakeman et al 2006 ).…”

Section: Theme 3: Monitoring Modeling and Communicationmentioning

confidence: 99%

Future agriculture with minimized phosphorus losses to waters: Research needs and direction

Sharpley

Bergström

Aronsson

et al. 2015

AMBIO

238

129

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The series of papers in this issue of AMBIO represent technical presentations made at the 7th International Phosphorus Workshop (IPW7), held in September, 2013 in Uppsala, Sweden. At that meeting, the 150 delegates were involved in round table discussions on major, predetermined themes facing the management of agricultural phosphorus (P) for optimum production goals with minimal water quality impairment. The six themes were (1) P management in a changing world; (2) transport pathways of P from soil to water; (3) monitoring, modeling, and communication; (4) importance of manure and agricultural production systems for P management; (5) identification of appropriate mitigation measures for reduction of P loss; and (6) implementation of mitigation strategies to reduce P loss. This paper details the major challenges and research needs that were identified for each theme and identifies a future roadmap for catchment management that cost-effectively minimizes P loss from agricultural activities.

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“…We note that Gotland, according to the standards of EU's Water Framework Directive, already shares the characteristics of having unsatisfactory (ground)water status with other coastal regions of the Baltic Sea, including the nearby Stockholm region in Sweden (Andersson et al, 2012(Andersson et al, , 2014. We use an extensive dataset to underpin our calculations and interpretations, including data from well measurements, elevation data, meteorological data, data on infrastructure, land cover and land use, and data on cultural objects.…”

Section: Introductionmentioning

confidence: 99%

GIS analysis of effects of future Baltic sea level rise on the island of Gotland, Sweden

Ebert

Ekstedt

Jarsjö

2016

Nat. Hazards Earth Syst. Sci.

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Abstract. Future sea level rise as a consequence of global warming will affect the world's coastal regions. Even though the pace of sea level rise is not clear, the consequences will be severe and global. Commonly the effects of future sea level rise are investigated for relatively vulnerable development countries; however, a whole range of varying regions needs to be considered in order to improve the understanding of global consequences. In this paper we investigate consequences of future sea level rise along the coast of the Baltic Sea island of Gotland, Sweden, with the aim to fill knowledge gaps regarding comparatively well-suited areas in developed countries. We study both the quantity of the loss of features of infrastructure, cultural, and natural value in the case of a 2 m sea level rise of the Baltic Sea and the effects of climate change on seawater intrusion in coastal aquifers, which indirectly cause saltwater intrusion in wells. We conduct a multi-criteria risk analysis by using lidar data on land elevation and GIS-vulnerability mapping, which gives the application of distance and elevation parameters formerly unimaginable precision. We find that in case of a 2 m sea level rise, 3 % of the land area of Gotland, corresponding to 99 km2, will be inundated. The features most strongly affected are items of touristic or nature value, including camping places, shore meadows, sea stack areas, and endangered plants and species habitats. In total, 231 out of 7354 wells will be directly inundated, and the number of wells in the high-risk zone for saltwater intrusion in wells will increase considerably. Some valuable features will be irreversibly lost due to, for example, inundation of sea stacks and the passing of tipping points for seawater intrusion into coastal aquifers; others might simply be moved further inland, but this requires considerable economic means and prioritization. With nature tourism being one of the main income sources of Gotland, monitoring and planning are required to meet the changes. Seeing Gotland in a global perspective, this island shows that holistic multi-feature studies of future consequences of sea level rise are required to identify overall consequences for individual regions.

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Saving the Baltic Sea, the Inland Waters of Its Drainage Basin, or Both? Spatial Perspectives on Reducing P-Loads in Eastern Sweden

Cited by 10 publications

References 30 publications

Zones of untreatable water pollution call for better appreciation of mitigation limits and opportunities

Zones of untreatable water pollution call for better appreciation of mitigation limits and opportunities

Future agriculture with minimized phosphorus losses to waters: Research needs and direction

GIS analysis of effects of future Baltic sea level rise on the island of Gotland, Sweden

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