An overview on biodiversity and ecological function in agroecosystems managed by conservation tillage was presented. The aim was to evaluate the benefits of alternative agricultural practices on environmental sustainability and the contribute of cultivated and semi-natural habitats to biodiversity in typical agricultural landscapes. At the field scale we compared species composition and diversity of both vascular plants and Carabids under two contrasting tillage systems, i.e. conservation tillage and conventional tillage respectively. The two cultivation systems were studied under open field conditions with three types of annual crops (i.e. maize, soybean and winter cereals) on pairs of adjacent fields. The two tillage systems studied did not differ in floristic or carabid diversity. At the landscape scale indices of biodiversity (Species Richness, Shannon’s Diversity, Pielou’s Evennes ) showed higher values in grasslands and field boundaries, intermediate values were found in woods, whereas lowest values were recorded in crops and hedges.
Agricoltura conservativa, biodiversità e naturalità dell'ambiente coltivato
SIGURA, Maurizia;BOSCUTTI, Francesco;
2012-01-01
Abstract
An overview on biodiversity and ecological function in agroecosystems managed by conservation tillage was presented. The aim was to evaluate the benefits of alternative agricultural practices on environmental sustainability and the contribute of cultivated and semi-natural habitats to biodiversity in typical agricultural landscapes. At the field scale we compared species composition and diversity of both vascular plants and Carabids under two contrasting tillage systems, i.e. conservation tillage and conventional tillage respectively. The two cultivation systems were studied under open field conditions with three types of annual crops (i.e. maize, soybean and winter cereals) on pairs of adjacent fields. The two tillage systems studied did not differ in floristic or carabid diversity. At the landscape scale indices of biodiversity (Species Richness, Shannon’s Diversity, Pielou’s Evennes ) showed higher values in grasslands and field boundaries, intermediate values were found in woods, whereas lowest values were recorded in crops and hedges.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
