枫杨幼苗对富营养化水体中总氮总磷的去除效果  

Removal effect on total nitrogen and total phosphorus in eutrophic water of Pterocarya stenoptera

作　　者：童丽丽[1] 张娟[2] 阮宏华[3] 

机构地区：[1]金陵科技学院园艺学院,江苏南京210038 [2]南京林业大学森林资源与环境学院,江苏南京210037 [3]南京林业大学江苏省林业生态工程重点实验室,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2011年第5期139-142,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：金陵科技学院博士科研启动基金项目(JIT-B-2009002)

摘　　要：对枫杨1年生幼苗9—11月在4组总氮(TN,质量浓度分别为2.0、30.0、40.0和80.0mg/L)和总磷(TP,质量浓度分别为0.4、8.0、15.0和25.0 mg/L)的模拟富营养化水中的生长状况、形态变化及其对各浓度富营养化水中TN、TP的去除效果进行了研究。结果表明:枫杨对富营养化水适应性较强,在不同浓度的富营养化水中形态生长状况良好,株高、基径、叶片数均有不同程度的增长;对不同浓度富营养化水中的TN和TP净化效果良好,平均去除率分别为8.31%与23.79%,其中对低浓度富营养化水中的TN、TP去除效果最佳,平均去除率分别高达17.06%和40.86%。由此可知,枫杨是值得大力推广的净化富营养化水中TN与TP的湿生乡土树种。This paper investigated the morphologic changes and the uptake effect on TN and TP in eutrophic water by using one-year seedlings of Pterocarya stenoptera,which were planted in 4 treatments of simulated eutrophic water with various concentration of TN as 2.0,30.0,40.0,80.0 mg/L and TP as 0.4,8.0,15.0,25.0 mg/L respectively from September to November,2009.Results showed that P.stenoptera had rather strong adaptability to the eutrophic water,and they grew well in it,with height,stem base diameter,leaves number increase more or less.P.stenoptera demonstrated a good removal effect on TN and TP of 4 different concentrations,with the average uptake rates 8.31 % and 23.79 %,among which the best uptake capacity for TN,TP appeared when they were in the lowest concentration,reached 17.06 % and 40.86% on average.All the results indicated that P.stenoptera was an applicable wetland regional tree species in the eutrophic water.

关 键 词：枫杨 模拟富营养化水 形态变化 氮磷去除效果 

分 类 号：S718[农业科学—林学] X173[环境科学与工程—环境科学]