Effekten av plöjning på biologisk mångfald i jordbruksmark

Sammanfattning: This study was done to get an understanding of how tillage effects biodiversity in agriculture soil. Therefore, this study focused on the soil organisms and various physical and chemical processes that can affect them. Soil organisms are crucial to agricultural landscapes as they perform biological processes that improve soil structure, nutrient cycling and decomposition. To ensure food production and achieve long-term sustainable agriculture, we must consider how we affect the soil. It is crucial that future generations have the same opportunities to food as we have now. Soil samples were collected at eight different farms in Skåne in a paired design. Each pair had one farm with arable field that was tilled and one farm with arable field that was not tilled. From these soil samples the abundance of four different soil organisms (mites, collembola, enchytraeids and nematodes), water-holding capacity, pH, respiration, substrate-induced respiration were analysed in the soil samples from each farm. In addition, statistical tests were conducted to test if tillage and biodiversity had any statistical significance. The results of the statistical tests showed that none of the processes had any significant correlation to tillage except for respiration. No conclusion regarding the effect of tillage on the measured parameters could be drawn except for respiration. This could be since the soil organisms had a large variation within and between the farms, therefore it could not show differences between tillage and no tillage. Future studies should investigate biodiversity with a greater number of samples and with a study that spans over several seasons.