摘要
利用水生植物净化富营养化水体是污染水体生物治理的途径之一,选择5个水稻品种作为供试水生植物,通过静态水培试验,研究了各植物在富营养化水体中的生长状况,以及对水体中N、P的去除效果,以期找出适宜在富营养化水体中生长的优势水稻品种。结果表明,在不添加任何植物营养的条件下,5个水稻品种在富营养化水体中均能正常生长;有植物处理系统对水体中总磷（TP）、氨氮（NH4-N）的去除效果显著高于无植物对照;有植物处理系统TP的去除率为75.54%~88.54%,NH4-N的去除率为90.43%~96.82%;无植物对照TP的去除率为49.14%,NH4-N的去除率为88.13%。整个生育期,不同水稻品种对水体中NH4-N和TP的去除率呈先快、中缓、后期略有回升的动态规律。供试的5个水稻品种,红谷对水体中NH4-N和TP去除率均为最高,且该品种适应能力强,在今后的人工湿地中值得推广应用。
Using aquatic plants to purify eutrofic water bodies was one of the biological way,which was drawing more and more attention.In this study,five varieties of Oryzae were cultivated in eutrophic water with solution culture to search for the suitable plant variety in water purification.The phosphorus and nitrogen content of plant tissue and biological traits plants were tested to study the effect of phosphorus and nitrogen removal.The results showed that all plants grow well in eutrophic water without addition any of nutrients.The aquatic plants had removal effect of total phosphorus（TP） and ammonium nitrogen（NH4-N）.The treatments with aquatic plants had 75.54 %-88.54 % and 90.43 %-96.82 %TP and NH4-N removal,respectively.Meanwhile the treatments without aquatic plants had TP and NH4-N removal of 49.14 % and 88.13 %,respectively.In the whole growth period,different varieties of rice made a dynamic rule to the TP and NH4-N removal.Red corn made the highest removal effect of TP and NH4-N in the five varieties of rice and it had a adaptable ability.Red corn was worthy of popularization and application in the future wetland.
出处
《西南农业学报》
CSCD
北大核心
2010年第6期1923-1929,共7页
Southwest China Journal of Agricultural Sciences
基金
云南省省院省校合作项目(2006XY35)
昆明市科技局昆科计字(08S010201)资助项目
关键词
水稻
富营养化
去除率
Rice
Eutrophication
Removal of nutrient
