Bo Elberling
Datos Biográficos
| ID | 2776330 |
|---|---|
| NOMBRE | Bo Elberling |
| NOMBRES | Bo |
| APELLIDO | Elberling |
| FIRMA | ELBERLING B |
| AFILIACIONES | University of Copenhagen |
| ORCID | 0000-0002-6023-885X |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 22 |
| TOTAL DE CITAS | 46 |
| TOTAL COMO AUTOR | 22 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1998 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2020 |
| ÍNDICE H | 5 |
Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems
Soils are warming as air temperatures rise across the Arctic and Boreal region concurrent with the expansion of tall-statured shrubs and trees in the tundra. Changes in vegetation structure and function are expected to alter soil thermal regimes, thereby modifying climate feedbacks related to permafrost thaw and carbon cycling. However, current understanding of vegetation impacts on soil temperature is limited to local or regional scales and lack…
Henrik Breuning-Madsen (1949-2018)
Arctic archaeological sites threatened by climate change
Climate change threatens many well‐preserved archaeological sites in the Arctic. The paper presents the first Arctic multi‐threat assessment focusing on the Nuuk region of Greenland. The results suggest that the majority of the 336 known archaeological sites are already exposed to impacts from microbial degradation, permafrost thaw and vegetation, and that these impacts will increase over the next 80 years. Additional impacts from coastal erosion…
Estimating meltwater retention and associated nitrate redistribution during snowmelt in an Arctic tundra landscape
Nitrogen availability in Arctic ecosystems is a key driver for biological activity, including plant, growth and thereby directly linked to the greening of the Arctic. Here, we model the redistribution of meltwater following spring snowmelt as well as the accumulation of meltwater and dissolved nitrate at landscape scale. By combining snow mapping with unmanned aerial systems, snow chemistry, and hydrological modelling, we argue that the majority …
Vegetation phenology gradients along the west and east coasts of Greenland from 2001 to 2015
The objective of this paper is to characterize the spatiotemporal variations of vegetation phenology along latitudinal and altitudinal gradients in Greenland, and to examine local and regional climatic drivers. Time-series from the Moderate Resolution Imaging Spectroradiometer (MODIS) were analyzed to obtain various phenological metrics for the period 2001-2015. MODIS-derived land surface temperatures were corrected for the sampling biases caused…
The Impact of Climate Change on an Archaeological Site in the Arctic
Climate change may accelerate the degradation of archaeological sites in the Arctic and lead to a loss of important historical information. This study assesses the current preservation conditions and the processes controlling the physical and chemical stability of the Qajaa kitchen midden in western Greenland. Currently, the site is well protected by low ground temperatures, permafrost and a high water/ice content, keeping the deposits anoxic. Ba…
High Arctic plant phenology is determined by snowmelt patterns but duration of phenological periods is fixed
The duration of specific periods within a plant's life cycle are critical for plant growth and performance. In the High Arctic, the start of many of these phenological periods is determined by snowmelt date, which may change in a changing climate. It has been suggested that the end of these periods during late-season are triggered by external cues, such as day length, light quality or temperature, leading to the hypothesis that earlier or later s…
Deepened winter snow increases stem growth and alters stem δ 13 C and δ 15 N in evergreen dwarf shrub Cassiope tetragona in high-arctic Svalbard tundra
nDeeper winter snow is hypothesized to favor shrub growth and may partly explain the shrub expansion\nobserved in many parts of the arctic during the last decades, potentially triggering biophysical\nfeedbacks including regional warming and permafrost thawing.Weexperimentally tested the effects\nof winter snow depth on shrub growth and ecophysiology by measuring stem length and stem\nhydrogen (δ2H), carbon (δ13C), nitrogen (δ15N) and oxygen (δ18O…
The sustainability of cassava-based bioethanol production in southern Mali
The demand for biofuels has been rising, which has led developing countries to focus on production of feedstocks for biodiesel and bioethanol production. This has caused concerns for the impacts on food security, food prices and environmental sustainability. This paper examines a hypothetical case of cassava-based bioethanol production in southern Mali, assessing its environmental, economic and social sustainability. Results demonstrate that envi…
Estimated stocks of circumpolar permafrost carbon with quantified uncertainty ranges and identified data gaps
Soils and other unconsolidated deposits in the northern circumpolar permafrost region store large amounts of soil organic carbon (SOC). This SOC is potentially vulnerable to remobilization following soil warming and permafrost thaw, but SOC stock estimates were poorly constrained and quantitative error estimates were lacking. This study presents revised estimates of permafrost SOC stocks, including quantitative uncertainty estimates, in the 0–3 m…
Degradation of Archaeological Wood Under Freezing and Thawing Conditions—Effects of Permafrost and Climate Change
The degradation of archaeological wood at freezing and thawing temperatures is studied at the site of Q ajaa in W est G reenland through a combination of environmental monitoring, measurement of oxygen consumption and microscopy of wood samples. Permanently frozen wood is still very well preserved after 2–4000 years, while wood samples that thaw every summer show attack by soft rot and an average density loss of 0.1 g cm –3 (corresponding to 25% …
The Future Preservation of a Permanently Frozen Kitchen Midden in Western Greenland
Archaeological materials may be extraordinarily well preserved in Arctic areas, where permanently frozen conditions in the ground slow down the decay of materials such as wood, bone, flesh, hair, and DNA. However, the mean annual air temperature in the Arctic is expected to increase by between 2·5 to 7·5°C by the end of the twenty-first century. This may have a significant warming effect on the soil and could lead to permafrost thaw and degradati…
Greenland climate change
Climate archives available from deep sea and marine shelf sediments, glaciers, lakes, and ice cores in and around Greenland allow us to place the current trends in regional climate, ice sheet dynamics, and land surface changes in a broader perspective. We show that, during the last decade (2000s), atmospheric and sea surface temperatures are reaching levels last encountered millennia ago, when northern high latitude summer insolation was higher d…
Changes in shifting cultivation systems on small Pacific islands
The limited information on change in shifting cultivation systems of small islands of the Pacific stands in contrast to increasing evidence of this farming system's demise in other parts of the tropics. Here, we assess changes in agricultural activities during the past 40 years of Bellona Island, Solomon Islands, where shifting cultivation is still maintained in the traditional way. Fallow length has increased despite population growth due to red…
Paleo-Eskimo kitchen midden preservation in permafrost under future climate conditions at Qajaa, West Greenland
An indigenous soil classification system for Bellona Island – a raised atoll in Solomon Islands
One of the challenges of evaluating existing traditional farming systems is to combine local knowledge and modern scientific methods and terminology. This requires an evaluation of indigenous soil classification in modern terms. This paper focuses on an indigenous soil classification system developed by local farmers on the island of Bellona, Solomon Islands. The definitions of the different soil types are described and the principles of the clas…
Ecological Dynamics Across the Arctic Associated with Recent Climate Change
Assessing the Arctic The Arctic is experiencing some of the most rapid climate change currently under way across the globe, but consequent ecological responses have not been widely reported. At the close of the Fourth International Polar Year, Post et al. (p. 1355 ) review observations on ecological impacts in this sensitive region. The widespread changes occurring in terrestrial, freshwater, and marine systems, presage changes at lower latitudes…
Oxygen depletion and phosphorus release following flooding of a cultivated wetland area in Denmark
Geografisk Tidsskrift, Danish Journal of Geography 108(2):17–25, 2008 The rewetting of altered wetlands is becoming increasingly widespread. When flooding cultivated soils, the oxygen (O2) availability is reduced, subsequently, ferric hydroxides can dissolve and associated inorganic phosphorus (P) will be mobilized. This study shows the temporal and spatial dynamics of O2 depletion following flooding using planar optodes and the subsequent releas…
Meteorological trends (1991–2004) at Arctic Station, Central West Greenland (69°15'N) in a 130 years perspective
Geografisk Tidsskrift, Danish Journal of Geography 106(1):45–55, 2006 Meteorological data from Arctic Station (69°15'N, 53°31'W) located on Disko Island (West Greenland) has been analysed for the period 1991–2004 and used to describe the general climate at Disko and to evaluate meteorological trends. Parameters include daily observations of snow cover, sea ice cover and bihourly logged air and ground temperatures, wind regime, pressure, precipita…
Preservation Within Log Coffins Before and After Barrow Construction
Water content and land use history controlling soil CO 2 respiration and carbon stock in savanna soil and groundnut fields in semi-arid Senegal
Decomposition of soil organic carbon (SOC) regulates the partitioning between soil C-stock and release of CO2 to the atmosphere and is vital for soil fertility. Agricultural expansion followed by decreasing amounts of SOC and soil fertility is a problem mainly seen in tropical agro-ecosystems where fertilizers are in short supply. This paper focuses on factors influencing temporal trends in soil respiration measured as CO2 effluxes in grass savan…
Anmeldelser
Degradation of Archaeological Wood Under Freezing and Thawing Conditions—Effects of Permafrost and Climate Change
The degradation of archaeological wood at freezing and thawing temperatures is studied at the site of Q ajaa in W est G reenland through a combination of environmental monitoring, measurement of oxygen consumption and microscopy of wood samples. Permanently frozen wood is still very well preserved after 2–4000 years, while wood samples that thaw every summer show attack by soft rot and an average density loss of 0.1 g cm –3 (corresponding to 25% …
Paleo-Eskimo kitchen midden preservation in permafrost under future climate conditions at Qajaa, West Greenland
Preservation Within Log Coffins Before and After Barrow Construction
The Impact of Climate Change on an Archaeological Site in the Arctic
Climate change may accelerate the degradation of archaeological sites in the Arctic and lead to a loss of important historical information. This study assesses the current preservation conditions and the processes controlling the physical and chemical stability of the Qajaa kitchen midden in western Greenland. Currently, the site is well protected by low ground temperatures, permafrost and a high water/ice content, keeping the deposits anoxic. Ba…
Arctic archaeological sites threatened by climate change
Climate change threatens many well‐preserved archaeological sites in the Arctic. The paper presents the first Arctic multi‐threat assessment focusing on the Nuuk region of Greenland. The results suggest that the majority of the 336 known archaeological sites are already exposed to impacts from microbial degradation, permafrost thaw and vegetation, and that these impacts will increase over the next 80 years. Additional impacts from coastal erosion…
Meteorological trends (1991–2004) at Arctic Station, Central West Greenland (69°15'N) in a 130 years perspective
Geografisk Tidsskrift, Danish Journal of Geography 106(1):45–55, 2006 Meteorological data from Arctic Station (69°15'N, 53°31'W) located on Disko Island (West Greenland) has been analysed for the period 1991–2004 and used to describe the general climate at Disko and to evaluate meteorological trends. Parameters include daily observations of snow cover, sea ice cover and bihourly logged air and ground temperatures, wind regime, pressure, precipita…
Greenland climate change
Climate archives available from deep sea and marine shelf sediments, glaciers, lakes, and ice cores in and around Greenland allow us to place the current trends in regional climate, ice sheet dynamics, and land surface changes in a broader perspective. We show that, during the last decade (2000s), atmospheric and sea surface temperatures are reaching levels last encountered millennia ago, when northern high latitude summer insolation was higher d…
Vegetation phenology gradients along the west and east coasts of Greenland from 2001 to 2015
The objective of this paper is to characterize the spatiotemporal variations of vegetation phenology along latitudinal and altitudinal gradients in Greenland, and to examine local and regional climatic drivers. Time-series from the Moderate Resolution Imaging Spectroradiometer (MODIS) were analyzed to obtain various phenological metrics for the period 2001-2015. MODIS-derived land surface temperatures were corrected for the sampling biases caused…
Changes in shifting cultivation systems on small Pacific islands
The limited information on change in shifting cultivation systems of small islands of the Pacific stands in contrast to increasing evidence of this farming system's demise in other parts of the tropics. Here, we assess changes in agricultural activities during the past 40 years of Bellona Island, Solomon Islands, where shifting cultivation is still maintained in the traditional way. Fallow length has increased despite population growth due to red…
Anmeldelser
Preservation Within Log Coffins Before and After Barrow Construction
Water content and land use history controlling soil CO 2 respiration and carbon stock in savanna soil and groundnut fields in semi-arid Senegal
Decomposition of soil organic carbon (SOC) regulates the partitioning between soil C-stock and release of CO2 to the atmosphere and is vital for soil fertility. Agricultural expansion followed by decreasing amounts of SOC and soil fertility is a problem mainly seen in tropical agro-ecosystems where fertilizers are in short supply. This paper focuses on factors influencing temporal trends in soil respiration measured as CO2 effluxes in grass savan…
Meteorological trends (1991–2004) at Arctic Station, Central West Greenland (69°15'N) in a 130 years perspective
Geografisk Tidsskrift, Danish Journal of Geography 106(1):45–55, 2006 Meteorological data from Arctic Station (69°15'N, 53°31'W) located on Disko Island (West Greenland) has been analysed for the period 1991–2004 and used to describe the general climate at Disko and to evaluate meteorological trends. Parameters include daily observations of snow cover, sea ice cover and bihourly logged air and ground temperatures, wind regime, pressure, precipita…
Oxygen depletion and phosphorus release following flooding of a cultivated wetland area in Denmark
Geografisk Tidsskrift, Danish Journal of Geography 108(2):17–25, 2008 The rewetting of altered wetlands is becoming increasingly widespread. When flooding cultivated soils, the oxygen (O2) availability is reduced, subsequently, ferric hydroxides can dissolve and associated inorganic phosphorus (P) will be mobilized. This study shows the temporal and spatial dynamics of O2 depletion following flooding using planar optodes and the subsequent releas…
Ecological Dynamics Across the Arctic Associated with Recent Climate Change
Assessing the Arctic The Arctic is experiencing some of the most rapid climate change currently under way across the globe, but consequent ecological responses have not been widely reported. At the close of the Fourth International Polar Year, Post et al. (p. 1355 ) review observations on ecological impacts in this sensitive region. The widespread changes occurring in terrestrial, freshwater, and marine systems, presage changes at lower latitudes…
An indigenous soil classification system for Bellona Island – a raised atoll in Solomon Islands
One of the challenges of evaluating existing traditional farming systems is to combine local knowledge and modern scientific methods and terminology. This requires an evaluation of indigenous soil classification in modern terms. This paper focuses on an indigenous soil classification system developed by local farmers on the island of Bellona, Solomon Islands. The definitions of the different soil types are described and the principles of the clas…
Paleo-Eskimo kitchen midden preservation in permafrost under future climate conditions at Qajaa, West Greenland
The Future Preservation of a Permanently Frozen Kitchen Midden in Western Greenland
Archaeological materials may be extraordinarily well preserved in Arctic areas, where permanently frozen conditions in the ground slow down the decay of materials such as wood, bone, flesh, hair, and DNA. However, the mean annual air temperature in the Arctic is expected to increase by between 2·5 to 7·5°C by the end of the twenty-first century. This may have a significant warming effect on the soil and could lead to permafrost thaw and degradati…
Greenland climate change
Climate archives available from deep sea and marine shelf sediments, glaciers, lakes, and ice cores in and around Greenland allow us to place the current trends in regional climate, ice sheet dynamics, and land surface changes in a broader perspective. We show that, during the last decade (2000s), atmospheric and sea surface temperatures are reaching levels last encountered millennia ago, when northern high latitude summer insolation was higher d…
Changes in shifting cultivation systems on small Pacific islands
The limited information on change in shifting cultivation systems of small islands of the Pacific stands in contrast to increasing evidence of this farming system's demise in other parts of the tropics. Here, we assess changes in agricultural activities during the past 40 years of Bellona Island, Solomon Islands, where shifting cultivation is still maintained in the traditional way. Fallow length has increased despite population growth due to red…
Estimated stocks of circumpolar permafrost carbon with quantified uncertainty ranges and identified data gaps
Soils and other unconsolidated deposits in the northern circumpolar permafrost region store large amounts of soil organic carbon (SOC). This SOC is potentially vulnerable to remobilization following soil warming and permafrost thaw, but SOC stock estimates were poorly constrained and quantitative error estimates were lacking. This study presents revised estimates of permafrost SOC stocks, including quantitative uncertainty estimates, in the 0–3 m…
Degradation of Archaeological Wood Under Freezing and Thawing Conditions—Effects of Permafrost and Climate Change
The degradation of archaeological wood at freezing and thawing temperatures is studied at the site of Q ajaa in W est G reenland through a combination of environmental monitoring, measurement of oxygen consumption and microscopy of wood samples. Permanently frozen wood is still very well preserved after 2–4000 years, while wood samples that thaw every summer show attack by soft rot and an average density loss of 0.1 g cm –3 (corresponding to 25% …
Deepened winter snow increases stem growth and alters stem δ 13 C and δ 15 N in evergreen dwarf shrub Cassiope tetragona in high-arctic Svalbard tundra
nDeeper winter snow is hypothesized to favor shrub growth and may partly explain the shrub expansion\nobserved in many parts of the arctic during the last decades, potentially triggering biophysical\nfeedbacks including regional warming and permafrost thawing.Weexperimentally tested the effects\nof winter snow depth on shrub growth and ecophysiology by measuring stem length and stem\nhydrogen (δ2H), carbon (δ13C), nitrogen (δ15N) and oxygen (δ18O…
The sustainability of cassava-based bioethanol production in southern Mali
The demand for biofuels has been rising, which has led developing countries to focus on production of feedstocks for biodiesel and bioethanol production. This has caused concerns for the impacts on food security, food prices and environmental sustainability. This paper examines a hypothetical case of cassava-based bioethanol production in southern Mali, assessing its environmental, economic and social sustainability. Results demonstrate that envi…
High Arctic plant phenology is determined by snowmelt patterns but duration of phenological periods is fixed
The duration of specific periods within a plant's life cycle are critical for plant growth and performance. In the High Arctic, the start of many of these phenological periods is determined by snowmelt date, which may change in a changing climate. It has been suggested that the end of these periods during late-season are triggered by external cues, such as day length, light quality or temperature, leading to the hypothesis that earlier or later s…
Vegetation phenology gradients along the west and east coasts of Greenland from 2001 to 2015
The objective of this paper is to characterize the spatiotemporal variations of vegetation phenology along latitudinal and altitudinal gradients in Greenland, and to examine local and regional climatic drivers. Time-series from the Moderate Resolution Imaging Spectroradiometer (MODIS) were analyzed to obtain various phenological metrics for the period 2001-2015. MODIS-derived land surface temperatures were corrected for the sampling biases caused…
The Impact of Climate Change on an Archaeological Site in the Arctic
Climate change may accelerate the degradation of archaeological sites in the Arctic and lead to a loss of important historical information. This study assesses the current preservation conditions and the processes controlling the physical and chemical stability of the Qajaa kitchen midden in western Greenland. Currently, the site is well protected by low ground temperatures, permafrost and a high water/ice content, keeping the deposits anoxic. Ba…
Estimating meltwater retention and associated nitrate redistribution during snowmelt in an Arctic tundra landscape
Nitrogen availability in Arctic ecosystems is a key driver for biological activity, including plant, growth and thereby directly linked to the greening of the Arctic. Here, we model the redistribution of meltwater following spring snowmelt as well as the accumulation of meltwater and dissolved nitrate at landscape scale. By combining snow mapping with unmanned aerial systems, snow chemistry, and hydrological modelling, we argue that the majority …
Shallow soils are warmer under trees and tall shrubs across Arctic and Boreal ecosystems
Soils are warming as air temperatures rise across the Arctic and Boreal region concurrent with the expansion of tall-statured shrubs and trees in the tundra. Changes in vegetation structure and function are expected to alter soil thermal regimes, thereby modifying climate feedbacks related to permafrost thaw and carbon cycling. However, current understanding of vegetation impacts on soil temperature is limited to local or regional scales and lack…
Henrik Breuning-Madsen (1949-2018)
Arctic archaeological sites threatened by climate change
Climate change threatens many well‐preserved archaeological sites in the Arctic. The paper presents the first Arctic multi‐threat assessment focusing on the Nuuk region of Greenland. The results suggest that the majority of the 336 known archaeological sites are already exposed to impacts from microbial degradation, permafrost thaw and vegetation, and that these impacts will increase over the next 80 years. Additional impacts from coastal erosion…
Geography (17 obras) · Environmental Science (16 obras) · Climate change and permafrost (13 obras) · Physical geography (12 obras) · Biology (11 obras) · Ecology (11 obras) · Geology (11 obras) · Arctic (10 obras) · Oceanography (9 obras) · Archaeology (8 obras)