Plantering av skog på jordbruksmark i Sverige och dess påverkan på biologisk mångfald
Sammanfattning: The environmental effects, not least on biodiversity, of land use and land use change provide major challenges when sustainability goals are to be met along with demand for production and other ecosystem services. Here I systematically review literature on one major land use change, from agriculture to forest, and the implications for biodiversity. The aim is to provide information for land use decisions in Sweden, and the literature review is thus complemented by a GIS analysis of the trends in converting agricultural lands to forest in the past two decades. The results show that while this conversion has slowed compared to the past century, forest is and could keep being planted on agricultural land with significant effects on biodiversity. The compiled results from the literature review indicate that the direction and magnitude of changes to species richness and density of different taxon is dependent on the biodiversity of converted agricultural lands, the composition of newly planted forests and the structure and species composition of the larger landscape. I found that extensively managed pastures and meadows are especially biodiverse and are therefore the most sensitive to forest plantations. New forests should be planted with ideally a mix of native species. Land management in general should take into account and provide habitat to regionally present wildlife to maximize benefits for biodiversity. Due to the limited number of publications in the field, no conclusions can be made of the effects on certain taxa or on conversion from certain types of agricultural lands to certain types of forest. This review highlights the need for more studies on biodiversity impacts from forest plantation on agricultural land in Sweden in order to avoid conflicts with biodiversity conservation and ecosystem services.
HÄR KAN DU HÄMTA UPPSATSEN I FULLTEXT. (följ länken till nästa sida)