Assessment of plant biodiversity in the over grazed marginal lands of Kovilpatti

摘要

@@Introduction The study area is located in the outskirts of Kovilpatti (9° N 78°E),Thoothukudi district,Tamilnadu,India and many farmers have abandoned their semi arid marginal dry lands due to drought,marginal yield and the change in their life style.The abandoned marginal lands were utilized for goat grazing and herbal collection.The conservation of plant biodiversity is uncertain in the marginal lands by over grazing,and human activities.