SURVEY METHODSON AQUATIC MACROPHYTE VEGETATION IN LAKESIN THE MIDDLE AND LOWER REACHES OF CHANGJIANG RIVER

Forming of lakes in our country is varied.Surveyed methods on aquatic macrophyte vegetation in lakes are different,too.The paper summarized former studies and advanced:(1) discribing methods of aquatic vegetation in lake from the composition of species,synusia,quantitative feather of community;(2) sampling method of aquatic macrophyte vegetation in lake in the middle and lower reaches of Changjiang River,for example,choosing the plot and the survey time,et al.