Impact of secondary vegetation succession on soil quality in a humid Mediterranean landscape

摘要: Abstract Former agricultural fields are increasingly abandoned in several regions Southern Europe. In many cases this leads to vegetation succession which may have a direct impact on soil quality, biodiversity and hydrological connectivity. The aim of study is provide insights the role response land abandonment quality changes, while keeping aspect into consideration. Information change incomplete highly scattered especially Mediterranean deserves more attention. Four different stages use (i.e. field, young forest, semi-mature forest) were selected sampled both north-, south-facing slopes. For each eight conditions six representative sites sampled. During organic carbon (SOC) content total nitrogen (TN) content, aggregate stability significantly increased. With increasing SOC, TN bulk density pH decreased. addition, parameters water retention impacted by aspect. SOC contents increased slower over time north exposed slopes, but higher after 50 years. Carbon stocks showed similar trend not 50 years for studied expositions, due related changes dry time. Soil availability was 24% north-facing however did Largest increase observed first 30 years abandonment.