污水排放对白骨壤凋落叶的影响  

Effect of sewage irrigation on fallen leaves of Avicennia marina

作　　者：陈桂珠[1] 陈桂葵[2] 

机构地区：[1]中山大学环境科学研究所,广州510275 [2]华南农业大学农学院,广州510170

出　　处：《生态学杂志》2004年第4期69-71,共3页Chinese Journal of Ecology

基　　金：国家自然科学基金项目 ( 3 9470 15 1);香港"裘氏"基金资助项目

摘　　要：一年中白骨壤各处理组凋落叶总生物量大小顺序为FW >NW >CL >TW ;白骨壤各污水处理组凋落叶含N量和含P量均比对照组稍高 ,随污水浓度的上升含N量和含P量呈上升趋势 ;一年中白骨壤植物凋落叶N、P、Zn的含量的多少顺序都为 :FW >NW≈TW >CL ,Cd、Ni、Pb的含量的多少顺序为FW >TW >NW >CL ,各处理组凋落叶重金属的含量都以FW最高 ;各处理组植株元素年归还率平均为 :N 1 9 1 % ,P 2 1 3% ,Cd 2 1 2 % ,Ni2 1 4 % ,Pb 2 3 3% ,Zn 31 5 % ,归还量均较低。During one year study,the biomass of fallen leaves of Avicennia marina in normal sewage water (NW) and five fold concentration sewage water (FW) were higher than that of control (CL),while ten fold concentration sewadge water (TW) was similar to CL.Contents of total N and total P in fallen leaves of sewage treatment were higher than that of control.The total amounts of total N,total P and total Zn in fallen leaves was in order of FW>NW≈TW>CL,while for Cd,Ni and Pb, was FW>TW>NW>CL.Their average annual return rates were:N 19.1%,P 21.3%,Cd 21.2%,Ni 21.4%,Pb 23.3%, and Zn 31.5%.All of their return amounts were quite small.

关 键 词：白骨壤 污水 凋落叶 

分 类 号：X820.3[环境科学与工程—环境工程]