Abstract
A method was developed to construct maps of former forest types based on regional pollen data in southern Sweden. The considered species were Alnus, Betula, Carpinus, Corylus, Fagus, Fraxinus, Juniperus, Picea, Pinus, Populus, Quercus, Salix, Tilia and Ulmus. A network of 37 regional pollen sites with high data quality from lakes and peat deposits were selected from Sweden south of 60 ° N. Pollen percentage values were calculated and converted into estimates of tree composition. For controlling the reliability of the reconstruction, the estimates from the core-tops were compared with present day forest inventory data, and local pollen diagrams were compared with the regional pollen diagrams. An inverse distance weighted interpolation algorithm was used to generate maps for each tree species distribution at 2000 BP, 1500 BP, 1000 BP, 500 BP and 0 BP. A supervised classification routine was implemented to generate nine different forest types common to the five studied time intervals. The maps show that the amounts and patterns of distribution of the species and the forest types have varied in a significant but systematic manner through time. The changes are due to human activities, migrational patterns and changes in climate. These maps will be of value as a basis for future landscape planning, forestry and conservation of biodiversity.
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References
Aaby, B., 1983. Forest development, soil genesis and human activity illustrated by pollen and hypha analysis of two neighbouring podzols in Draved Forest, Denmark. Geological survey of Denmark II 114: 1–114.
Almquist-Jacobson, H., 1994. Interactions of the Holocene climate, water balance, vegetation, fire and the cultural land-use in Swedish borderland. Lundqua thesis 30. Lund university, Lund, 82 pp.
Andersen, S. T., 1970. The relative pollen productivity of North European trees, and correction factors for tree pollen spectra. Geological survey of Denmark II 96: 1–99.
Andersen, S. T., 1976. Local and regional vegetational development in eastern Denmark in the Holocene. Danm. geol. Unders. Arsbog: 5–27.
Andersen, S. T., 1984. Forests at Løvenholm, Djursland, Denmark at present and in the past. Biol. Skr. Dan. Vid. Selsk. 24, 1.208 pp.
Attwill, P. M., 1994. The disturbance of forest ecosystems: the ecological basis for conservation management. For. Ecol. Mngt. 63: 247–300.
Bennett, K. D., 1989. A provisional map of forest types for the British Isles 5000 years ago. J. Quat. Sci. 4: 141–144.
Berglund, B. E., 1991. Pollen proxy data from the Nordic countries. In B. Frenzel (ed.), Evaluation of climate proxy data in relation to the European Holocene. Fischer Verlag, Stuttgart: 29–36.
Birks, H. H., H. J. B. Birks, P. E. Kaland & D. Moe, 1988. The cultural landscape, past present and future. Cambridge University Press, Cambridge, 521 pp.
Birks, H. J. B., 1985. A pollen-mapping project in Norden for 0–13000 B.P. Nordmap 1. Botanisk institutt, Bergen, Norway, 41 pp.
Björkman, L. & R. H. W. Bradshaw, 1995. The immigration of Fagus sylvatica L. and Picea abies (L.) Karst. into a natural forest stand in southern Sweden during the last two thousand years. J. Biogeog. (in press).
Bradshaw, R. H. W., 1981. Modern pollen-representation factors for woods in southeast England. J. Ecol. 69: 45–70.
Bradshaw, R. H. W., 1988. Spatially-precise studies of forest dynamics. In Huntley, B. & T. WebbIII (eds.) Handbook of Vegetation Science, Vol. 7, Vegetation History. Kluwer Academic Publishers, Dordrecht: 725–751.
Bradshaw, R. H. W. & T. WebbIII, 1985. Relationships between contemporary pollen and vegetation data from Wisconsin and Michigan, USA. Ecology 66: 721–737.
Bradshaw, R. H. W., P. Gemmel & L. Björkman, 1994. Development of nature-based silvicultural models in southern Sweden: the scientific background. Forest and Landscape Research 1: 95–110.
Burrough, P. A., 1986. Principles of Geografical Information Systems for land resources assessment. Monographs on soil and resources survey no. 12, Clarendon press, Oxford, 193 pp.
Calcote, R., 1995. Pollen source area and pollen productivity: Evidence from forest hollows. J. Ecol. 83: 591–602.
Davis, M. B., 1963. On the theory of pollen analysis. Am. J. Sci. 261: 897–912.
Davis, M. B., 1976. Pleistocene biogeography of temperate deciduous forests. Geoscience and man 13: 13–26.
Delcourt, P. A. & H. R. Delcourt, 1981. Vegetation maps for eastern North America: 40 000 yr B.P. to the present. In R. C. Romans (ed.), Geobotany II. Plenum Press, N.Y.: 123–165.
Delcourt, P. A. & H. R. Delcourt, 1987. Long-term forest dynamics of the temperate zone. Ecological studies 63. Springer-Verlag, N.Y., 439 pp.
Ellenberg, H., 1978. Vegetation Mitteleuropas mit den Alpen. Verlag Eugen Ulmer, Stuttgart, 981 pp.
Greig, J., 1982. Past and present lime woods of Europe. In: Limbrey, S. & M. Bell (eds), Archaeological Aspects of Woodland Ecology. Oxford, England: 23–55
Heide, K. M. & R. H. W. Bradshaw, 1982. The pollen-tree relationship within forests of Wisconsin and upper Michigan, USA. Palaeobot. Palynol. 36: 1–23.
Hobbs, R. J. & L. F. Huenneke, 1992. Disturbance, diversity and invasion: implications for conservation. Conserv. biol. 6: 324–337.
Huntley, B., 1990. European post-glacial forests: compositional changes in response to climatic change. J. Veg. Sci. 1: 507–518.
Huntley, B. & H. J. B. Birks, 1983. An atlas of past and present pollen maps for Europe: 0–13 000 years ago. Cambridge Univ. Press, Cambridge, 667 pp.
Iversen, J., 1969. Retrogressive development of a forest ecosystem demonstrated by pollen diagrams from fossil mor. Oikos, suppl. 12: 35–49.
Jacobson, G. L.Jr., T. WebbIII & E. C. Grimm, 1987. Patterns and rates of vegetation change during the glaciation of eastern North America. In W. F. Ruddiman & H. E. WrightJr. (eds), North America and adjacent oceans during the last deglaciation. The Geology of North America, K-3. Geological Society of America, Boulder, Colorado: 277–287.
Lillesand, T. M. & R. W. Kiefer, 1987. Remote Sensing and Image Interpretation. 2nd ed. John Wiley, Singapore, 721 pp.
Nilsson, S. G., 1992. Forests in the temperate-boreal transition —natural and man-made features. In: Hansson, L. (ed.), Ecological principles of nature conservation. Elsevier, London: 373–393.
Parsons, R. W. & I. C. Prentice, 1981. Statistical approaches to R-value and the pollen-vegetation relationship. Rev. Palaeobot. Palynol. 32: 127–152.
Parsons, R. W., I. C. Prentice & M. Saarnisto, 1980. Statistical studies on pollen representation in Finnish lake sediments in relation to forest inventory data. Ann. Bot. Fennici 17: 379–393.
Prentice, I. C., 1986. Forest-composition calibration of pollen data. In Berglund, B. E. (ed.), Handbook of Holocene palaeoecology and palaeohydrology. John Wiley & sons Ltd., Chichester: 799–816.
Prentice, I. C., B. E. Berglund & T. Olsson, 1987. Quantitative forest-composition sensing characteristics of pollen samples of Swedish lakes. Boreas 16: 43–54.
Samuelsson, J., L. Gustafsson & T. Ingelög, 1994. Dying and dead trees — a review of their importance for biodiversity. Swedish Threatened Species Unit, Uppsala, 109 pp.
Skogsdata, 1991. Aktuella uppgifter om de svenska skogarna fran riksskogstaxeringen. Institutionen för skogstaxering, Swedish University of Agricultural Sciences, Umeå, 75 pp. (In swedish).
Skogsstyrelsen, 1988. Skogsstatistisk årsbok. Statistical yearbook of forestry 1988. National Board of Forestry. Jönköping, 282 pp. (In swedish).
Sprugel, D. G., 1991. Disturbance, equilibrium, and environmental variability: what is ‘natural’ vegetation in a changing environment? Biol. conserv. 58: 1–18.
Sugita, S., 1994. Pollen representation of vegetation in Quaternary Sediments: theory and method in patchy vegetation. J. Ecol. 82: 881–897.
Tou, J. T. & R. C. Gonzalez, 1974. Pattern Recognition Principles. Addison-Wesley Publishing Co.
Webb, T.III, S. E. Howe, R. H. W. Bradshaw, K. M. Heide, 1981. Estimating plant abundances from pollen percentages: the use of regression analysis. Palaeobot. Palynol. 34: 269–300.
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This is the 20th in a series of papers published in this special AMQUA issue. These papers were presented at the 1994 meeting of the American Quaternary Association held 19–22 June, 1994, at the University of Minnesota, Minneapolis, Minnesota, USA. Dr Linda C. K. Shane served as guest editor for these papers.
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Björse, G., Bradshaw, R.H.W. & Michelson, D.B. Calibration of regional pollen data to construct maps of former forest types in southern Sweden. J Paleolimnol 16, 67–78 (1996). https://doi.org/10.1007/BF00173272
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DOI: https://doi.org/10.1007/BF00173272