PERFORMANCE OF SPIODELA POLYRHIZA AND AL TERNANTHERA PHILOXER DES IN REDUCING SALINITY AND ALKALINITY AND THEIR EFFECTS ON WATER QUALITY
SHENTU Qingchun
Dong Shuanglin
ZHAO Wen
ZHANG Zhaoqi
Zhang Meizhao
Abstract：The experiment was conducted in Daluhu aquaculture site, Gaoqing County, Shandong Province during August and December, 1998. It was aimed at study on the effects of applications of aquatic plant Spiodela polyrhiza and Alternanthera philoxeroides on the chemical and hydrobiological factors in brackish-water ponds. Spiodela polyrhiza and Alternanthera philoxeroides's performance in reducing salinity and alkalinity had also been studied. The results show that Alternanthera philoxeroides had no significant effect on reducing salinity and alkalinity.Spiodela polyrhiza also had no significant effect on reducing salinity, but it was evident that Spiodela polyrhiza could reduce alkalinity, lead to increasing pH values and reducing Calcium concentrations. In addition, they were able to reduce the concentrations of nutrients and phytoplankton biomass, but their effects on zoopiankton had not been observed.
Machine-generated Keywords：
Publication Date：2001-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：9( 47-55 )