Through investigation on the impact of environmental factors(including dissolved oxygen

pH value

temperature and disturbance) and submerged plant on phosphate release from sediment

the impact factors of environmental factors affecting phosphate release

and submerged plant affecting phosphate release under different environmental factors have been analyzed.It can be concluded that dissolved oxygen

pH value

temperature and disturbance can affect phosphate release from the sediment

among which

both dissolved oxygen and pH value are the more important environmental factors;phosphate in lakes especially the shallow ones plays an important role in water eutrophication;and submerged plant play a key part in preventing the sediment from being stirred by environmental factors such as water pervasion

winds and so on;moreover

in the shallow lakes

it is of practical value to revive submerged plant like Myriophyllum spicatum L.in the sediment under the conditions with the greater disturbances in lake

for the control of phosphate release from the sediment.