安徽农业科学2024，Vol.52Issue(16)：57-63,7.DOI:10.3969/j.issn.0517-6611.2024.16.012
不同环境因素对沉积物氮释放的影响
Effects of Different Environmental Factors on Sediment Nitrogen Release
摘要
Abstract
In order to study the effect of overlying water conditions on sediment nitrogen in Poyang Lake,the estuarine sediments of Poyang Lake were used as experimental materials.By changing the temperature,pH and disturbance conditions of overlying water,the release charac-teristics of different forms of nitrogen in sediments were studied.The correlation of nitrogen release in sediments under different environmental conditions was fitted with the functions of first order,second order and third order.The results showed that with the increase of temperature,the release of total nitrogen,ammonia nitrogen and nitrate nitrogen increased significantly.Under acidic condition,the release intensity of am-monia nitrogen was the highest,while under alkaline condition,it was the lowest.The release intensity of total nitrogen and nitrate nitrogen was the highest under alkaline condition.Under different disturbance intensities,the release intensity of ammonia nitrogen,total nitrogen and ni-trate nitrogen reached the maximum at 160 r/min.Curve fitting results showed that the release intensity of total nitrogen,ammonia nitrogen and nitrate nitrogen was a function of pH,temperature and disturbance intensity.关键词
环境因素/沉积物氮/释放强度Key words
Environment factor/Sediment nitrogen/Release intensity分类
资源环境引用本文复制引用
吴明蔚,沈耀辉,刘钰润,余进来,蒋兴哲,刘明浩,康彩霞..不同环境因素对沉积物氮释放的影响[J].安徽农业科学,2024,52(16):57-63,7.基金项目
国家自然科学基金项目(42001111). （42001111）
