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- Brown, Sally, et al.
(författare)
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Shifting perspectives on coastal impacts and adaptation
- 2014
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Ingår i: Nature Climate Change. - : Nature Publishing Group. - 1758-678X .- 1758-6798. ; 4:9, s. 752-755
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- The Intergovernmental Panel on Climate Change reports reflect evolving attitudes in adapting to sea-level rise by taking a systems approach and recognizing that multiple responses exist to achieve a less hazardous coast.
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- Boyle, John F., et al.
(författare)
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Modelling prehistoric land-use and carbon budgets: a critical review
- 2011
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Ingår i: The Holocene. - : SAGE Publications. - 0959-6836 .- 1477-0911. ; 21:5, s. 715-722
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Tidskriftsartikel (refereegranskat)abstract
- An evaluation of modelled estimates for C release following early land clearance at the global level based on new model assumptions suggests that earlier studies may have underestimated its magnitude, chiefly because of underestimation of the mid-Holocene global population. Alternative information sources for population and land utilisation support both a greater total CO(2) release and a greater Neolithic contribution. Indeed, we show that the quantity of terrestrial C release due to early farming, even using the most conservative assumptions, greatly exceeds the net terrestrial C release estimated by inverse modelling of ice core data by Elsig et al. (Elsig J, Schmitt J, Leuenberger D, Schneider R, Eyer M, Leuenberger M et al. ( 2009) Stable isotope constraints on Holocene carbon cycle changes from an Antarctic ice core. Nature 461: 507-510), though uncertainty about past global population estimates precludes calculation of a precise value.
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- Dearing, John A., et al.
(författare)
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Safe and just operating spaces for regional social-ecological systems
- 2014
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Ingår i: Global Environmental Change. - : Elsevier BV. - 0959-3780 .- 1872-9495. ; 28, s. 227-238
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Tidskriftsartikel (refereegranskat)abstract
- Humanity faces a major global challenge in achieving wellbeing for all, while simultaneously ensuring that the biophysical processes and ecosystem services that underpin wellbeing are exploited within scientifically informed boundaries of sustainability. We propose a framework for defining the safe and just operating space for humanity that integrates social wellbeing into the original planetary boundaries concept (Rockstrom et al., 2009a,b) for application at regional scales. We argue that such a framework can: (1) increase the policy impact of the boundaries concept as most governance takes place at the regional rather than planetary scale; (2) contribute to the understanding and dissemination of complexity thinking throughout governance and policy-making; (3) act as a powerful metaphor and communication tool for regional equity and sustainability. We demonstrate the approach in two rural Chinese localities where we define the safe and just operating space that lies between an environmental ceiling and a social foundation from analysis of time series drawn from monitored and palaeoecological data, and from social survey statistics respectively. Agricultural intensification has led to poverty reduction, though not eradicated it, but at the expense of environmental degradation. Currently, the environmental ceiling is exceeded for degraded water quality at both localities even though the least well-met social standards are for available piped water and sanitation. The conjunction of these social needs and environmental constraints around the issue of water access and quality illustrates the broader value of the safe and just operating space approach for sustainable development.
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- Dearing, JA, et al.
(författare)
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Social-ecological systems in the Anthropocene : The need for integrating social and biophysical records at regional scales.
- 2015
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Ingår i: The Anthropocene Review. - : SAGE Publications. - 2053-0196 .- 2053-020X. ; 2:3, s. 220-246
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Tidskriftsartikel (refereegranskat)abstract
- Understanding social-ecological system dynamics is a major research priority for sustainable management of landscapes, ecosystems and resources. But the lack of multi-decadal records represents an important gap in information that hinders the development of the research agenda. Without improved information on the long-term and complex interactions between causal factors and responses, it will be difficult to answer key questions about trends, rates of change, tipping points, safe operating spaces and pre-impact conditions. Where available long-term monitored records are too short or lacking, palaeoenvironmental sciences may provide continuous multi-decadal records for an array of ecosystem states, processes and services. Combining these records with conventional sources of historical information from instrumental monitoring records, official statistics and enumerations, remote sensing, archival documents, cartography and archaeology produces an evolutionary framework for reconstructing integrated regional histories. We demonstrate the integrated approach with published case studies from Australia, China, Europe and North America.
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- Gaillard, Marie-Jose, et al.
(författare)
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A late Holocene record of land-use history, soil erosion, lake trophy and lake-level fluctuations at Bjäresjösjön (South Sweden) changes in southern Sweden
- 1991
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Ingår i: Journal of Paleolimnology. - 0921-2728 .- 1573-0417. ; 6, s. 51-81
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Tidskriftsartikel (refereegranskat)abstract
- Land-use history, soil ersosion, lake trophy and lake-level fluctuations during the last 3000 years werereconstructed through a multidisciplinary palaeolimnological study (pollen, plant macrofossils, diatoms,physical and chemical analysis, magnetic measurements and radiometric methods) of a small eutrophiclake in southern Sweden (Bj~resjOsjOn, Scania). There are striking responses in diatom, chemical,sediment yield and magnetic records to land-use changes documented by pollen analysis or historicalsources, and to lake-level changes identified from sedimentary changes. Our multidisciplinary approachassists interpretation of the processes controlling long-term changes and separation of the effects ofdifferent factors (land-use changes, lake-level fluctuations) on individual biostratigraphical records.Climate has controlled processes in the lake indirectly, through lake-level fluctuations, from the LateBronze Age to the Viking Age (700 BC-AD 800). Since the Viking Age, land-use controlled most of thechanges observed in the lake's development and soil erosion processes. Major changes in lake developmentoccurred during the last 200 years, due to a drastic increase in soil erosion and water eutrophicationduring a period of agricultural modernization.
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