| 百花湖水体氮的空间分布研究 |
| |
| 引用本文： | 沈威,胡继伟,谢伟芳,张杰,罗晋.百花湖水体氮的空间分布研究[J].中国岩溶,2012,31(1):74-81. |
| |
| 作者姓名： | 沈威 胡继伟 谢伟芳 张杰 罗晋 |
| |
| 作者单位： | 1. 贵州师范大学贵州省山地环境信息系统与生态环境保护重点实验室,贵州贵阳,550001
2. 贵州师范大学化学与材料科学学院,贵州贵阳,550001 |
| |
| 基金项目： | 贵阳市科学技术局基金项目([2010]筑科农合同字第5-2号) |
| |
| 摘 要： | 初步探讨了百花湖水体中氮的空间分布特征,并分析了氮及溶解氧(DO)的相关性.对8个站位的表层、4 m、8 m及12 m水体中总氮、氨氮、硝酸盐氮、亚硝酸盐氮及溶解氧进行了测定.结果表明,百花潮水体中总氮的平均含量为1.18 mg/L,氨氮的平均含量为0.144 mg/L,硝酸盐氮的平均含量为0.20mg/L,亚硝酸盐氮的平均含量为0.018 mg/L.百花湖入湖口附近的1号采样点总氮、氨氮和硝酸盐氮的平均浓度都较其它采样点高.分析表明百花湖中DO浓度与硝酸盐氮和亚硝酸盐氮呈负相关,相关系数分别为-0.629、-0.724.
|
| 关 键 词： | 百花湖 氮含量 氮形态 氮转化 溶解氧 分布特征 |
| 收稿时间： | 5/5/2011 12:00:00 AM |
Spatial distribution of nitrogen in the water from the Baihua Lake |
| |
| SHEN Wei,HU Ji-wei,XIE Wei-fang,ZHANG Jie and LUO Jin.Spatial distribution of nitrogen in the water from the Baihua Lake[J].Carsologica Sinica,2012,31(1):74-81. |
| |
| Authors: | SHEN Wei HU Ji-wei XIE Wei-fang ZHANG Jie and LUO Jin |
| |
| Institution: | Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University;Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University;Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University;School of Chemistry and Materials Science, Guizhou Normal University;Guizhou Provincial Key Laboratory for Information System of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University |
| |
| Abstract: | Vertical distribution of inorganic nitrogen in the water from the Baihua Lake and the correlations between nitrogen forms and dissolved oxygen (DO) are analyzed in this study. The concentrations of total nitrogen (TN), ammonia nitrogen (NH4+-N), nitrate nitrogen (N O3--N), nitrite nitrogen (NO2--N) and dissolved oxygen in eight water samples (surface, 4 m, 8 m and 12 m under the water) are determined. The results show that the total nitrogen average concentration of the wateris1.18 mg/L, with ammonia nitrogen being 0.144 mg/L, nitrate nitrogen 0.20 mg/L and nitrite nitrogen 0.018 mg/L. Furthermore, the average concentrations of total nitrogen, ammonia and nitrate nitrogen are higher at the inlet point in comparison to other sampling points. In addition, the correlation analysis demonstrated that there are significant negative correlations between DO concentration and two nitrogen forms (nitrate nitrogen and nitrite nitrogen) with correlation coefficient -0.629 and -0.724. |
| |
| Keywords: | Baihua Lake nitrogen content nitrogen form nitrogen transformation dissolved oxygen distribution features |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国岩溶》浏览原始摘要信息 |
| 点击此处可从《中国岩溶》下载免费的PDF全文 |
|
