| 引用本文: | 李兴,李畅游,李卫平,史小红,代文婕,勾芒芒.内蒙古乌梁素海不同形态氮的时空分布.湖泊科学,2009,21(6):885-890. DOI:10.18307/2009.0620 |
| LI Xing,LI Changyou,LI Weiping,SHI Xiaohong,DAI Wenjie,GOU Mangmang.Temporal and spatial distribution of different species of nitrogen in Lake Wuliangsuhai,Inner Mongolia. J. Lake Sci.2009,21(6):885-890. DOI:10.18307/2009.0620 |
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| 内蒙古乌梁素海不同形态氮的时空分布 |
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李兴1, 李畅游1, 李卫平1,2, 史小红1, 代文婕3, 勾芒芒4
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1.内蒙古农业大学水利与土木建筑工程学院, 呼和浩特 010018;2.内蒙古科技大学能源与环境学院, 包头 014010;3.内蒙古满洲里市建设局, 满洲里 021400;4.内蒙古自治区水利科学研究院, 呼和浩特 010020
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| 摘要: |
| 为揭示不同形态氮在乌梁素海空间分布特征及变化规律,运用ArcGIS统计模块分析了2006-2007年乌梁素海不同形态氮浓度的时空变异.研究表明:乌梁素海水体中各监测点总氮浓度夏、冬季高,秋季低,季节性差异较为明显;秋、冬季氨氮平均浓度明显高于夏季;不同季节亚硝态氮平均浓度明显高于硝态氮.在空间分布上,乌梁素海不同形态氮浓度分布呈现出由北向南逐渐降低的趋势.总之,乌梁素海氮素污染问题已十分严重,主要污染源为河套灌区农田排水、沿总干渠区域的工业废水和生活污水,随水体的流动氮污染减少,但某些区域因芦苇、水草密集而使不同形态氮有不同程度的增减. |
| 关键词: 乌梁素海 不同形态氮 时空分布 ArcGIS |
| DOI：10.18307/2009.0620 |
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| 基金项目:国家自然科学基金项目(50569002,50669004);内蒙古自然科学基金重点项目(200711020604)联合资助 |
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| Temporal and spatial distribution of different species of nitrogen in Lake Wuliangsuhai,Inner Mongolia |
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LI Xing1, LI Changyou1, LI Weiping1,2, SHI Xiaohong1, DAI Wenjie3, GOU Mangmang4
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1.The College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, P.R.China;2.The College of Environment & Energy Resources, Inner Mongolia University of Science & Technology, Baotou 014010, P.R.China;3.Construction Bureau of Manzhouli City, Manzhouli 021400, P.R.China;4.Institute of Water Conservancy Science Inner Mongolia Municipality, Hohhot 010020, P.R.China
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| Abstract: |
| The temporal and spatial variation characteristics of nitrogen forms are very important for environmental pollution controlof lake. Concentrations of different nitrogen forms were studied using the geostatistical analysis module of ArcGIS in LakeWuliangsuhai. The results indicate that average concentrations of total nitrogen were higher in summer and winter than autumn inseasonal time series, the average concentrations of ammonia nitrogen were lower in summer than autumn and winter, and the averageconcentration of nitrite nitrogen was higher than nitrate nitrogen in different seasons. In space, concentration distribution of differentforms ofnitrogen showed gradually decreasing from north to south. In a word, nitrogen pollution is very serious in LakeWuliangsuhai. The main pollutions were sourced from farm field drainage of the Hetao irrigated areas, industrial waste water anddomestic sewage close to main irrigation canal, which caused different forms of nitrogen contents decreases with the discharge of flowingwater. However, in the region of density reed and aquatic, the contents of nitrogen forms will change with increase or decrease. |
| Key words: Lake Wuliangsuhai forms of nitrogen spatial-temporal distribution ArcGIS |
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