研究简报
杨丹菁,靖元孝,陈兆平,程惠青.水翁对富营养化水体氮、磷去除效果及规律研究[J].环境科学学报,2001,21(5):637-639
水翁对富营养化水体氮、磷去除效果及规律研究
- Study on removal effect and regulation of Cleistocalyx operculatu to N and P in eutrophic water body
- 基金项目：广东省教育厅自然科学研究项目(200022)
- 作者
- 单位
- 杨丹菁
- 广州市环境保护科学研究所,510620
- 靖元孝
- 华南师范大学生物系
- 陈兆平
- 华南师范大学生物系
- 程惠青
- 华南师范大学生物系
- 摘要：研究了水翁对水体总氮、总磷的去除效果及规律.水翁对总氮、总磷的去除速率分别为74.54mg(N)(kg·d)和13.38mg(P)(kg·d),但在遮阴条件下去除速率分别只有30.56mg(N)(kg·d)和3.37mg(P)(kg·d).在5-11月(月平均气温在20℃以上),水翁对总氮、总磷的去除速率维持较高水平(73-85mg(N)(kg·d)、7.1-8.8mg(P)(kg·d)),而在1-4月和12月(月平均气温在20℃以下)去除速率较低(18-32mg(N)(kg·d)、1.2-3mg(P)(kg·d)).研究了水体总氮浓度与去除速率之间的相关性,回归分析表明在试验的总氮浓度范围内(3.23-13.67mg/L)去除速率与总氮浓度呈正相关.
- Abstract：The removal effect and regulation of Cleistocalyx operculatu to TN and TP in eutrophic water body were studied. The removal rate of TN and TP were 74.54mg(N)/(kg·d) and 13.38mg(P)/(kg·d) respectively. But in shadow condition, the removal rate only reached 30.56mg(N)/(kg·d) and 3.37mg(P)/(kg·d) respectively. In May-Nov month(monthly mean temperature>20℃),C.operculatu maintained high removal rate (73-85mg(N)/(kg·d)、7.1-8.8mg(P)/(kg·d)). However, in Jan-Apr and 12 month(monthly mean temperature<20℃), C.operculatu kept low removal rate(18-32mg(N)/(kg·d) and 1.2-3mg(P)/(kg·d)). The correlation between TN concentration and removal rate was studied, and the regression analysis indicated that within the given TN concentration range (3.23-13.67mg/L), the removal rate positively correlated with TN concentration.
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