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YANG Wen-bing, ZHANG Xiang**
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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 CODcr. A remained stubble height of 20-30 cm was the optimal cutting intensity of C. dispalata
YANG Wen-bing, ZHANG Xiang**. Effects of cutting intensity on Carex dispalata growth and its sewage purification efficiency.[J]. cje.
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URL: http://www.cje.net.cn/EN/abstract/abstract20808.shtml
http://www.cje.net.cn/EN/Y2013/V32/I9/2418