| 1. |
- Jaramillo, Fernando, et al.
(author)
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Priorities and Interactions of Sustainable Development Goals (SDGs) with Focus on Wetlands
- 2019
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In: Water. - : MDPI. - 2073-4441. ; 11:3
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Journal article (peer-reviewed)abstract
- Wetlands are often vital physical and social components of a country’s natural capital, as well as providers of ecosystem services to local and national communities. We performed a network analysis to prioritize Sustainable Development Goal (SDG) targets for sustainable development in iconic wetlands and wetlandscapes around the world. The analysis was based on the information and perceptions on 45 wetlandscapes worldwide by 49 wetland researchers of the Global Wetland Ecohydrological Network (GWEN). We identified three 2030 Agenda targets of high priority across the wetlandscapes needed to achieve sustainable development: Target 6.3—“Improve water quality”; 2.4—“Sustainable food production”; and 12.2—“Sustainable management of resources”. Moreover, we found specific feedback mechanisms and synergies between SDG targets in the context of wetlands. The most consistent reinforcing interactions were the influence of Target 12.2 on 8.4—“Efficient resource consumption”; and that of Target 6.3 on 12.2. The wetlandscapes could be differentiated in four bundles of distinctive priority SDG-targets: “Basic human needs”, “Sustainable tourism”, “Environmental impact in urban wetlands”, and “Improving and conserving environment”. In general, we find that the SDG groups, targets, and interactions stress that maintaining good water quality and a “wise use” of wetlandscapes are vital to attaining sustainable development within these sensitive ecosystems.
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| 2. |
- Sjöberg, Ylva, 1982-, et al.
(author)
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Scaling relations reveal global and regional differences in morphometry of reservoirs and natural lakes
- 2022
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In: Science of the Total Environment. - : Elsevier BV. - 0048-9697 .- 1879-1026. ; 822
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Journal article (peer-reviewed)abstract
- Water bodies provide essential ecosystem services linked to morphometric features that might differ between natural lakes and reservoirs. We use the HydroLAKES global dataset to quantitatively compare large (area > 1 km(2)) reservoirs and natural lakes in terms of scaling exponents between morphometric measures (volume, area, shore length). These exponents are further compared to those expected from geometrical assumptions and constraints. Lakes cover a larger range of volumes for the same range of surface areas than reservoirs, and have a larger volume-area scaling exponent. The volume-area scaling exponent for reservoirs (but not natural lakes) and the area-shore length exponent for all water bodies follow the predictions for self-affine surfaces. Land cover and terrain influence the scaling relations more for lakes than for reservoirs. These morphometric differences may be used to model the impact of reservoirs and lakes on hydrological processes and associated ecosystem services at regional to global scales.
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| 3. |
- Xu, Diandian, et al.
(author)
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Impacts of multi-purpose reservoir construction, land-use change and climate change on runoff characteristics in the Poyang Lake basin, China
- 2020
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In: Journal of Hydrology. - : Elsevier BV. - 2214-5818. ; 29
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Journal article (peer-reviewed)abstract
- Study region: The Poyang Lake basin at the Yangtze River, China.Study focus: Impacts of multi-purpose reservoirs on runoff are investigated through the lens of spatio-temporal shifts in runoff coefficients (RC) before and after reservoir construction. We furthermore use evapotranspiration (ET) modelling to interpret possible additional impacts of climate change and other ambient changes since the 1950s within the Poyang Lake basin, comprising one of China’s most important freshwater resources. New Hydrological Insights for the Region: Results show that annual average RC and ET remain essentially unchanged despite reservoir constructions and irrigation development. We show that simultaneous, basin-wide implementation of lake-to-land transitions (including wetland drainage) has had a dampening effect on ET, contributing to unexpectedly weak ET trends. Our model furthermore shows that the observed (modest) ET increases since the 1950s can be fully attributed to the warmer climate in the region. Furthermore, the intra-annual distribution of the monthly RC used to be almost identical in all sub-basins during the pre-dam period. We show that the different operation schedules of multi-purpose reservoirs, which reflect location-specific differences in water need over the year, have resulted in pronounced temporal differences in sub-basin runoff characteristics (including RC-values). The present analysis contributes to process understanding, relevant for water management decisions in the Poyang Lake basin and other major multi-purpose dam regions across the world.
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