【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。更多还原

【Abstract】 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.更多还原