Ulf Segerström
Datos Biográficos
| ID | 6375683 |
|---|---|
| NOMBRE | Ulf Segerström |
| NOMBRES | Ulf |
| APELLIDO | Segerström |
| FIRMA | SEGERSTRÖM U |
| AFILIACIONES | Swedish University of Agricultural Sciences |
| VERIFICADO | No |
| TOTAL DE OBRAS | 15 |
| TOTAL DE CITAS | 79 |
| TOTAL COMO AUTOR | 15 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1996 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2017 |
| ÍNDICE H | 5 |
Copper-ore mining in Sweden since the pre-Roman Iron Age
Holocene carbon and nitrogen accumulation rates in a boreal oligotrophic fen
The contemporary role of mires in carbon exchange with the atmosphere is intensely debated. Thus, understanding the variation in Holocene peat accumulation is particularly important. We investigated carbon (C) and nitrogen (N) accumulation rates and their potential controls during the Holocene at the oligotrophic fen Degerö Stormyr (64°11′N, 19°33′E, 270 m a.s.l.), Sweden. The peat stratigraphy was dominated by remains of Eriophorum spp. and olig…
Tracing a bog-iron bloomery furnace in an adjacent lake-sediment record in Ängersjö, central Sweden, using pollen and geochemical signals
Was Moshyttan the earliest iron blast furnace in Sweden? The sediment record as an archeological toolbox
Tracing modern environmental conditions to their roots in early mining, metallurgy, and settlement in Gladhammar, southeast Sweden
We present results from a multidisciplinary project using lake sediment as a natural archive in combination with archaeology to investigate the earliest history of the Gladhammar mining area, southeastern Sweden. The aim was to identify and trace human impacts on the landscape, specifically in connection with settlement and metal production. Sediment records from two lakes linked to different processes in metal production were analyzed; Tjursbosj…
Fire as an important factor for the genesis of boreal Picea abies swamp forests in Fennoscandia
The initial establishment of Picea abies in Sweden and Norway on a landscape level, between 3000 and 1000 years ago, was often preceded by recurrent fire and thereafter the influence of fire decreased. However, in some swamp forests, the absence of fire over the last 3500 years has promoted the continuous presence of deciduous trees, i.e. Picea has not established although it has been present regionally for over 3000 years. Our objective was to s…
Holocene land-cover reconstructions for studies on land cover-climate feedbacks
The major objectives of this paper are: (1) to review the pros and cons of the scenarios of past anthropogenic land cover change (ALCC) developed during the last ten years, (2) to discuss issues related to pollen-based reconstruction of the past land-cover and introduce a new method, REVEALS (Regional Estimates of VEgetation Abundance from Large Sites), to infer long-term records of past land-cover from pollen data, (3) to present a new project (…
Early medieval origins of iron mining and settlement in central Sweden
The history of a farm–shieling system in the central Swedish forest region
Long-term sustainability of a northern boreal deciduous swamp forest in northern Sweden
In Fennoscandian boreal forests the general succession pattern after a stand-replacing fire includes the pioneer tree species Betula, Populus, Salix and Pinus. The primary colonizers are subsequently replaced by secondary species; on mesic and moist soils commonly by Picea abies. Many swamp forests have developed from deciduous Betula/Alnus fens to Picea abies swamp forests during the last 3500 years, since Picea became common in this region. Our…
Medieval Slash-and-Burn Cultivation
The general view in Swedish historiography of an inherent conflict between iron-making and the practice of slash-and-burn is questioned on the basis of this palaeoecological case study of repeated slash-and-burn cultivation from the fourteenth to the seventeenth centuries in the mining district of central Sweden. An alternative thesis of a mutual association between iron-making and the practice of slash-and-burn is put forward. Deliberately used …
Extensive forest grazing and hay-making on mires - vegetation changes in south-central Sweden due to land use since Medieval times
Holocene climatic change reconstructed from diatoms, chironomids, pollen and near-infrared spectroscopy at an alpine lake (Sjuodjijaure) in northern Sweden
The results of a multiproxy study reconstructing the climate history of the last 9300 years in northern Sweden are presented. It is based on diatom, chironomid and pollen analyses, as well as near-infrared spec troscopy (NIRS), of a radiocarbon dated sediment core from Sjuodjijaure (67°22N, 18°04E), situated 100 m above tree-line in the Scandes mountains. Mean July air temperature was reconstructed using transfer functions established for the reg…
The 9000-year histo of vegetation development and disturbance patterns of a swamp-forest in Dalama, northern Sweden
Analysis of pollen and charcoal in peat cores together with age-structure data of a swamp- forest site in the western part of central Sweden show the regional vegetation succession and the disturbance patterns over the last 9000 years. Five major vegetation sequences are identified: 1) Betula- Pinus period (c. 7000 to c. 6000 cal. BC); 2) wetland development (c. 6000 cal. BC to c. cal. AD 300); 3) Picea swamp-forest establishment ( c. cal. AD 300…
Norrbotten, Sverige och medeltiden
Early medieval origins of iron mining and settlement in central Sweden
Holocene climatic change reconstructed from diatoms, chironomids, pollen and near-infrared spectroscopy at an alpine lake (Sjuodjijaure) in northern Sweden
The results of a multiproxy study reconstructing the climate history of the last 9300 years in northern Sweden are presented. It is based on diatom, chironomid and pollen analyses, as well as near-infrared spec troscopy (NIRS), of a radiocarbon dated sediment core from Sjuodjijaure (67°22N, 18°04E), situated 100 m above tree-line in the Scandes mountains. Mean July air temperature was reconstructed using transfer functions established for the reg…
Extensive forest grazing and hay-making on mires - vegetation changes in south-central Sweden due to land use since Medieval times
The history of a farm–shieling system in the central Swedish forest region
Tracing modern environmental conditions to their roots in early mining, metallurgy, and settlement in Gladhammar, southeast Sweden
We present results from a multidisciplinary project using lake sediment as a natural archive in combination with archaeology to investigate the earliest history of the Gladhammar mining area, southeastern Sweden. The aim was to identify and trace human impacts on the landscape, specifically in connection with settlement and metal production. Sediment records from two lakes linked to different processes in metal production were analyzed; Tjursbosj…
Tracing a bog-iron bloomery furnace in an adjacent lake-sediment record in Ängersjö, central Sweden, using pollen and geochemical signals
The 9000-year histo of vegetation development and disturbance patterns of a swamp-forest in Dalama, northern Sweden
Analysis of pollen and charcoal in peat cores together with age-structure data of a swamp- forest site in the western part of central Sweden show the regional vegetation succession and the disturbance patterns over the last 9000 years. Five major vegetation sequences are identified: 1) Betula- Pinus period (c. 7000 to c. 6000 cal. BC); 2) wetland development (c. 6000 cal. BC to c. cal. AD 300); 3) Picea swamp-forest establishment ( c. cal. AD 300…
Medieval Slash-and-Burn Cultivation
The general view in Swedish historiography of an inherent conflict between iron-making and the practice of slash-and-burn is questioned on the basis of this palaeoecological case study of repeated slash-and-burn cultivation from the fourteenth to the seventeenth centuries in the mining district of central Sweden. An alternative thesis of a mutual association between iron-making and the practice of slash-and-burn is put forward. Deliberately used …
Fire as an important factor for the genesis of boreal Picea abies swamp forests in Fennoscandia
The initial establishment of Picea abies in Sweden and Norway on a landscape level, between 3000 and 1000 years ago, was often preceded by recurrent fire and thereafter the influence of fire decreased. However, in some swamp forests, the absence of fire over the last 3500 years has promoted the continuous presence of deciduous trees, i.e. Picea has not established although it has been present regionally for over 3000 years. Our objective was to s…
Long-term sustainability of a northern boreal deciduous swamp forest in northern Sweden
In Fennoscandian boreal forests the general succession pattern after a stand-replacing fire includes the pioneer tree species Betula, Populus, Salix and Pinus. The primary colonizers are subsequently replaced by secondary species; on mesic and moist soils commonly by Picea abies. Many swamp forests have developed from deciduous Betula/Alnus fens to Picea abies swamp forests during the last 3500 years, since Picea became common in this region. Our…
Copper-ore mining in Sweden since the pre-Roman Iron Age
Was Moshyttan the earliest iron blast furnace in Sweden? The sediment record as an archeological toolbox
The 9000-year histo of vegetation development and disturbance patterns of a swamp-forest in Dalama, northern Sweden
Analysis of pollen and charcoal in peat cores together with age-structure data of a swamp- forest site in the western part of central Sweden show the regional vegetation succession and the disturbance patterns over the last 9000 years. Five major vegetation sequences are identified: 1) Betula- Pinus period (c. 7000 to c. 6000 cal. BC); 2) wetland development (c. 6000 cal. BC to c. cal. AD 300); 3) Picea swamp-forest establishment ( c. cal. AD 300…
Holocene climatic change reconstructed from diatoms, chironomids, pollen and near-infrared spectroscopy at an alpine lake (Sjuodjijaure) in northern Sweden
The results of a multiproxy study reconstructing the climate history of the last 9300 years in northern Sweden are presented. It is based on diatom, chironomid and pollen analyses, as well as near-infrared spec troscopy (NIRS), of a radiocarbon dated sediment core from Sjuodjijaure (67°22N, 18°04E), situated 100 m above tree-line in the Scandes mountains. Mean July air temperature was reconstructed using transfer functions established for the reg…
Medieval Slash-and-Burn Cultivation
The general view in Swedish historiography of an inherent conflict between iron-making and the practice of slash-and-burn is questioned on the basis of this palaeoecological case study of repeated slash-and-burn cultivation from the fourteenth to the seventeenth centuries in the mining district of central Sweden. An alternative thesis of a mutual association between iron-making and the practice of slash-and-burn is put forward. Deliberately used …
Extensive forest grazing and hay-making on mires - vegetation changes in south-central Sweden due to land use since Medieval times
Long-term sustainability of a northern boreal deciduous swamp forest in northern Sweden
In Fennoscandian boreal forests the general succession pattern after a stand-replacing fire includes the pioneer tree species Betula, Populus, Salix and Pinus. The primary colonizers are subsequently replaced by secondary species; on mesic and moist soils commonly by Picea abies. Many swamp forests have developed from deciduous Betula/Alnus fens to Picea abies swamp forests during the last 3500 years, since Picea became common in this region. Our…
The history of a farm–shieling system in the central Swedish forest region
Holocene land-cover reconstructions for studies on land cover-climate feedbacks
The major objectives of this paper are: (1) to review the pros and cons of the scenarios of past anthropogenic land cover change (ALCC) developed during the last ten years, (2) to discuss issues related to pollen-based reconstruction of the past land-cover and introduce a new method, REVEALS (Regional Estimates of VEgetation Abundance from Large Sites), to infer long-term records of past land-cover from pollen data, (3) to present a new project (…
Early medieval origins of iron mining and settlement in central Sweden
Fire as an important factor for the genesis of boreal Picea abies swamp forests in Fennoscandia
The initial establishment of Picea abies in Sweden and Norway on a landscape level, between 3000 and 1000 years ago, was often preceded by recurrent fire and thereafter the influence of fire decreased. However, in some swamp forests, the absence of fire over the last 3500 years has promoted the continuous presence of deciduous trees, i.e. Picea has not established although it has been present regionally for over 3000 years. Our objective was to s…
Was Moshyttan the earliest iron blast furnace in Sweden? The sediment record as an archeological toolbox
Tracing modern environmental conditions to their roots in early mining, metallurgy, and settlement in Gladhammar, southeast Sweden
We present results from a multidisciplinary project using lake sediment as a natural archive in combination with archaeology to investigate the earliest history of the Gladhammar mining area, southeastern Sweden. The aim was to identify and trace human impacts on the landscape, specifically in connection with settlement and metal production. Sediment records from two lakes linked to different processes in metal production were analyzed; Tjursbosj…
Holocene carbon and nitrogen accumulation rates in a boreal oligotrophic fen
The contemporary role of mires in carbon exchange with the atmosphere is intensely debated. Thus, understanding the variation in Holocene peat accumulation is particularly important. We investigated carbon (C) and nitrogen (N) accumulation rates and their potential controls during the Holocene at the oligotrophic fen Degerö Stormyr (64°11′N, 19°33′E, 270 m a.s.l.), Sweden. The peat stratigraphy was dominated by remains of Eriophorum spp. and olig…
Tracing a bog-iron bloomery furnace in an adjacent lake-sediment record in Ängersjö, central Sweden, using pollen and geochemical signals
Copper-ore mining in Sweden since the pre-Roman Iron Age
Norrbotten, Sverige och medeltiden
Geography (13 obras) · Geology and Paleoclimatology Research (13 obras) · Environmental Science (9 obras) · Archaeology (8 obras) · Geology (8 obras) · Ecology (7 obras) · Vegetation (pathology (7 obras) · Archaeology and ancient environmental studies (6 obras) · Biology (6 obras) · Peat (6 obras)