RELATIONSHIPS BETWEEN ONCOMELANIA BREEDING AND BEACH VEGETATION IN THE MIDDLE AND LOWER REACHES OF THE YANGTZE RIVER
长江中下游滩地植被与钉螺孳生关系的研究

Weed community with dominant species as Cyperus spp.,Carex spp.and Cynodon dactylon, sedge silvergrass community with dominant species as Carex spp. and Miscanthus sacchariflorus and reed community with dominant species as Phragmites communis,Zizania caduciflora,Artemisia selengensis and Polygonum spp.are three major beach vegetation types in the Middle and Lower Reaches of the Yangtze River.The relationship between density of oncomelania and height and cover of these...