Effects of Organic and Conventional Farming Systems on Farmland Biodiversity

Some researchers claim that organic farming can theoretically and practically contribute to maintenance and conservation of farmland biodiversity.To arouse concerns among the scientific community over relationship of organic farming with farmland biodiversity,a review is presented of the effects of organic farming on species richness,abundance and diversity of weeds,epigeic arthropods,soil organisms and birds in the farmland ecosystem.