Biologisk mångfald i Tjörnedala - ett arv av den historiska markanvändningen
: Växtinventeringar, kart- och arkivstudier

Translated title of the thesis: Biodiversity at Tjörnedala - a legacy of the historical land use: Plant inventories, map and archival studies
  • Jakob Marktorp

    Student thesis: Bachelor

    Abstract

    There is a strong connection between historical land use and biodiversity. Several grassland species are advantaged or relied to mowing and grazing. The purpose of this study is to investigate if changes in the historical land use have affected the biodiversity. By studying maps from different time periods, changes in the landscape can be interpreted. Archival studies can then fill in historical gaps that the maps doesn’t show. The field work consisted of three plant inventory occasions: may 23, june 23 and july 14 in 2013. Four major surfaces, of 100 m2 each, were placed in the shore meadow of Tjörnedala. Analysis of maps shows that arable land expansion has taken meadow land space during the 20th century. The plant inventories along with archival studies shows that areas with the highest biodiversity are those that are used with traditional methods and with continuity of grazing. This study also shows that nitrogen favored species dominate in areas of former arable land. Both archival studies and plant inventories are needed to get a fair description of how an area has been used. The biodiversity is thus a legacy of the historical land use.

    Date of Award2014-Feb-11
    Original languageSwedish
    SupervisorJohanna Grönroos (Supervisor), Nils Wallin (Supervisor) & Magnus Thelaus (Examiner)

    Educational program

    • Landscape Science Programme

    University credits

    • 15 HE credits

    Swedish Standard Keywords

    • Botany (10607)
    • Environmental Sciences related to Agriculture and Land-use (40504)

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