芦苇对乌梁素海氮磷营养盐吸附动力学实验研究  

Absorption Dynamics of the Nitrogen and Phosphorus by Reeds

作　　者：宋晋栋 杨婷婷 张晶 杨静[1] 冯金朝[1] 刘春兰[1] 黑鹏飞[1] SONG Jindong;YANG Tingting;ZHANG Jing;YANG Jing;FENG Jinchao;LIU Chunlan;HEI Pengfei(College of Life and Environmental Science,Minzu University of China,Beijing 100081,China)

机构地区：[1]中央民族大学生命与环境科学学院,北京100081

出　　处：《中央民族大学学报（自然科学版）》2020年第2期27-31,共5页Journal of Minzu University of China(Natural Sciences Edition)

基　　金：国家自然科学基金(51209239,51979297)。

摘　　要：乌梁素海是全球范围内干旱草原与荒漠地区极少见的大型多功能湖泊,具有重要的生态经济功能。但是,近年来由于营养盐排放增加,湖泊富营养化问题严重,芦苇面积扩张至湖泊的60%。研究芦苇生长期对于氮磷营养盐吸收动力学特征,对湖泊治理具有重要意义。本文基于实验室微型湖泊生态系统,研究了不同温度、光照和营养盐浓度下芦苇对于氮磷营养盐的吸收动力学参数。研究表明,芦苇对氮、磷具有较强的吸收能力,重度富营养化时氮、磷最大吸收速率分别为轻度富营养化时的3倍以上。此外温度对最大吸收速率具有一定影响,夏季最大吸收速率略高于秋季。Wuliangsu lake is the largest lake in Yellow River drainage basin,and also one of the largest lakes in the semi-arid region in the northern China.But this lake has been suffered from heavy pollution and developed into serious eutrophic lake during recent decades.Based on the in-door ecosystem experiment,the adsorption dynamics under different temperature,light and nutrient contents were experimented.The results showed that the adsorption capacity of the reed was times higher in heavily polluted water than in lightly polluted water.Also,the higher the temperature is,the larger the maximum adsorption rate is.

关 键 词：富营养化 芦苇 吸收 氮 磷 乌梁素海 

分 类 号：TV142[水利工程—水力学及河流动力学]