摘要
从2005年9月到2005年10月,利用莲花湖中的3个49m2,深度为1.5m的围隔进行生物水质净化和除藻研究。1#围隔为对照,2#围隔水体中加入无根萍,3#围隔水体中喷洒酵母菌和光合细菌。与1#围隔比较,2#围隔水面的无根萍的数目在300L×5×103 L-1,3#围隔的喷洒复合菌数目酵母菌(300L×4×105L-1)和红螺菌(300 L×8×108 L-1)。本实验结果表明:在30 d内,2#和3#围隔中的TP分别下降40%、25%;TN分别下降43%、16%;叶绿素含量分别下降51%、31%。透明度增加了87 cm、55 cm;pH值降低了1.09、0.69。本研究表明无根萍与酵母菌和红螺菌对水体理化性质有明显的改善,对藻类生长有明显的抑制作用。
From September 2005 to October 2005, researches of water quality improvement and the algal control by biological methods were studied in three enclosures （area： 49m^2; depth： 1.5m） at Lianhua Lake. The 1# enclosure was the control, the 2# enclosure was treated with Wolffia arrhiza, the 3# enclosure was treated with Schizosaccharomyces sp and Rhodospirillum sp. The amount of Wolffia arrhiza was 300L× 5×10^3 Ll in 2# enclosure, and the amount of tSchizosaccharomyces （300L×4×10^5 L^-1） and Rhodospirillum （300L×8×10^8 L^-1） was in 3# enclosure. Aerf thirty days, compared to the control enclosure, TP declined to 40% and 16%; the chla content reduced 51% and 31%; transparency increased to 87 cm and 55 cm; pH decreased 1.09 and 0.69 in the 2# and 3# enclosure, respectively. The results showed that the water quality can be improved and the growth of algae was inhibited by Wolffia arrhiza, Schizosaccharomyces and Rhodospirillum.
出处
《生态科学》
CSCD
2007年第5期428-431,共4页
Ecological Science
基金
863计划2002AA601021资助
关键词
抑藻
无根萍
酵母菌
红螺菌
水质
alga inhibited
Rhodospirillum
Schizosaccharomyces
Wolffia arrhiza
water quality
