在芦苇不同生长期灌溉造纸废水的成熟芦苇秆纤维形态  

Fiber Morphology of Stalks of Mature Phragmites australis under Papermaking Wastewater Irrigation in Different Growth Periods

作　　者：侯萌萌[1] 苏芳莉[1] 孙权[1] 李海福[1] 高世缘 

机构地区：[1]沈阳农业大学水利学院,辽宁沈阳110866

出　　处：《湿地科学》2017年第2期315-320,共6页Wetland Science

基　　金：国家自然基金面上项目(31470710和31570706);国家自然基金青年基金项目(31200392);国家水体污染控制与治理科技重大专项项目(2012ZX07202004)资助

摘　　要：为了研究造纸废水中化学需氧量含量对芦苇(Phragmites australis)秆纤维形态的影响,于2015年4月28日~10月28日,以辽宁省双台河口湿地灌溉造纸废水的芦苇秆为实验材料,在芦苇的不同生长期,灌溉化学需氧量质量浓度为300 mg/L、175 mg/L和50 mg/L的造纸废水,芦苇成熟后,测定芦苇秆纤维的长度、宽度和长宽比。研究结果表明,成熟芦苇秆的纤维长度、宽度和长宽比随着水中化学需氧量含量的增加而增大。在芦苇的快速生长期灌溉化学需氧量质量浓度300 mg/L的废水,成熟芦苇秆的纤维长度、宽度和长宽比都达到最大值,分别为1.49 mm、10.35μm和143.96。造纸废水中的化学需氧量质量浓度(x)与成熟芦苇秆纤维长度(y_1)(r=0.414)、宽度(y_2)(r=0.340)和长宽比(y_3)(r=0.715)都线性正相关,其关系式分别为y_1=0.001x+0.845,y_2=0.006x+7.057和y_3=0.039x+118.508。The purpose of the paper was study the effect of chemical oxygen demand of papermaking wastewater on the fiber morphology of stalks of mature Phragmites australis. The study was conducted from April 28 to October 28, 2015. The stalks of Phragmites australis irrigated by papermaking wastewater in Shuangtaihekou wetlands in Liaoning province was took as experimental materials. In different growth periods, the concentrations of chemical oxygen demand of papermaking wastewater were 300 mg/L, 175 mg/L and 50 mg/L. The length, width and the ratio of length and width of fiber of stalks of mature Phragmites australis were measured after Phragmites australis matured. The results showed that the length, width and the ratio of length and width of fiber of stalks of mature Phragmites australis increased with the concentrations of chemical oxygen demand increasing. In the rapid growth period, when the concentrations of chemical oxygen demand of papermaking wastewater was 300 mg/L, the length, width and the ratio of length and width of fiber of stalks of mature Phragmites australis were highest, which were 1.49 mm, 10.35 μm and 143.96. The concentration of chemical oxygen demand（x） in wastewater has correlation with length（y_1）（r=0.414）, width（y_2）（r=0.340） and the ratio of length and width（y_3）（r=0.715） of fiber of stalks of Phragmites australis respectively. The regression equations were y_1=0.001x＋0.845, y_2=0.006x＋7.057, and y_3=0.039x＋118.508.

关 键 词：芦苇秆 纤维形态 造纸废水 化学需氧量 生长期 

分 类 号：Q944[生物学—植物学]