Study on the difference of pollution purification effect of typical water-holding plants applied to wetland ecological restoration projects
Taking the aquatic plants in the East Lake Area reservoir wetlands of the northern upper reaches of the Erhai River Basin as the research object,five main aquatic plants were selected to seek the best plant combination for purifying wetland water quality.The results showed that the total phosphorus,total nitrogen,ammonia nitrogen and chemical oxygen demand of the reservoir water in the East Lake Area reservoir wetlands were 0.09-0.23,0.80-3.28,0.18-0.89,and 12.00-37.00 mg/L,respectively,which overall met the Class Ⅳ requirements of"Environmental quality standards for surface water"(GB 3838-2002).Through comprehensive comparison,it was found that the biomass and carbon,nitrogen,and phosphorus accumulation effects of plant combination communities were superior to those of single plants.Plant combinations had a certain absorption and purification effect on carbon,nitrogen,and phosphorus in water.
Erhai River Basinthe East Lake Area reservoir wetlandsecological restorationcarbonnitrogenphosphorusplant
NETL
NSTL
万方数据
维普
