刈割弯囊苔草对生活污水净化效果影响

生态学杂志

刈割弯囊苔草对生活污水净化效果影响

杨文斌,章翔^**

(安徽师范大学环境科学与工程学院，安徽芜湖 241003)

出版日期:2013-09-10 发布日期:2013-09-10

Effects of cutting intensity on Carex dispalata growth and its sewage purification efficiency.

YANG Wen-bing, ZHANG Xiang^**

(College of Environmental Science and Engineering, Anhui Normal University, Wuhu 241003, Anhui, China)

Online:2013-09-10 Published:2013-09-10

摘要/Abstract

摘要：

通过水培实验，研究了弯囊苔草(Carex dispalata)不同刈割深度(C₁留茬10 cm，C₂留茬20 cm，C₃留茬30 cm，C₄留茬50 cm，C₅不刈割)对生活污水净化效果及生长特征的影响。结果表明：刈割促进弯囊苔草的再生能力，C₂实验组在刈割后1~7 d，植株生长速率达到3.67 cm·d^-1，远远高于C₅组。实验期间各实验组累积生物量变化存在差异，各组累积生物量表现为C₂>C₃>C₁>C₄>C₅。刈割提高了弯囊苔草对生活污水中N、P等去除效果，C₂组对TN、NH₃-N、TP、COD_cr的去除率均最高;弯囊苔草最佳刈割深度为留茬20～30 cm。

Abstract: A hydroponics experiment was conducted to study the effects of five cutting intensities of Carex dispalata (the remained stubble height = 10 cm, C₁; 20 cm, C₂; 30 cm, C₃; 50 cm, C₄; and no cutting, C₅) on the growth of C. dispalata and its sewage purification efficiency. Cutting could promote the regeneration ability of C. dispalata. In C₂, the plant growth rate in 1-7 days after cutting reached 3.67 cm·d^-1, far greater than that in C₅. The cumulative biomass varied among the treatments, showing a trend of C₂ > C₃ > C₁ > C₄ > C₅. Cutting increased the removal rates of sewage N and P by C. dispalata. Treatment C₂ showed the highest removal rates of sewage TN, NH₃-N, TP, and COD_cr. A remained stubble height of 20-30 cm was the optimal cutting intensity of C. dispalata

杨文斌,章翔**. 刈割弯囊苔草对生活污水净化效果影响[J]. 生态学杂志.

YANG Wen-bing, ZHANG Xiang**. Effects of cutting intensity on Carex dispalata growth and its sewage purification efficiency.[J]. cje.