| 滇池大气沉降氮磷形态特征及其入湖负荷贡献 |
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| 引用本文： | 任加国,贾海斌,焦立新,王一茹,杨苏文,武倩倩,高秋生,崔志丹,郝子峰.滇池大气沉降氮磷形态特征及其入湖负荷贡献[J].环境科学,2019,40(2):582-589. |
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| 作者姓名： | 任加国 贾海斌 焦立新 王一茹 杨苏文 武倩倩 高秋生 崔志丹 郝子峰 |
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| 作者单位： | 山东科技大学地球科学与工程学院, 青岛 266590,山东科技大学地球科学与工程学院, 青岛 266590;中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012;中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012;云南高原湖泊流域污染过程与管理重点实验室, 昆明 650034,中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012;中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012;云南高原湖泊流域污染过程与管理重点实验室, 昆明 650034,中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012;中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012;云南高原湖泊流域污染过程与管理重点实验室, 昆明 650034,中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012;中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012,山东科技大学地球科学与工程学院, 青岛 266590,中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012;中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012,山东科技大学地球科学与工程学院, 青岛 266590;中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012;中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012,山东科技大学地球科学与工程学院, 青岛 266590;中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012;中国环境科学研究院湖泊水污染治理与生态修复技术国家工程实验室, 北京 100012 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2012ZX07102-004）；云南省高原湖泊流域污染过程与管理重点实验室开放基金项目（2017PL004）；山东省自然科学基金项目（ZR2017MD009）；山东科技大学人才引进科研启动基金项目（2016RCJJ009） |
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| 摘 要： | 为研究季节变化和降雨量对滇池各种氮磷形态浓度的影响,采用紫外分光光度法测定大气沉降的各种氮磷形态浓度,探讨滇池湖面氮磷对水污染的贡献.结果表明,滇池大气沉降氮浓度普遍符合雨季低,旱季高的特点;大气沉降氮磷负荷与降雨量正相关,季节性变化主要呈雨季高,旱季低.大气沉降氮负荷以DIN为主,占总氮沉降负荷的63. 70%;磷负荷以PP为主,占总磷沉降负荷的45. 54%,过度施肥和肥料中氮磷的流失是大气湿沉降中主要的氮磷来源.结合入湖河流数据,滇池大气沉降中TN和TP的沉降量分别为河流入湖负荷的6. 14%和12. 76%,因而滇池主要污染来源仍然是入湖河流带来的负荷.但滇池大气沉降氮磷通量与其他地区相比处于中等偏上地位,所以该贡献仍需重视.
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| 关 键 词： | 滇池 大气沉降 氮磷 形态特征 入湖负荷 |
| 收稿时间： | 2018/5/1 0:00:00 |
| 修稿时间： | 2018/8/29 0:00:00 |
Characteristics of Nitrogen and Phosphorus Formation in Atmospheric Deposition in Dianchi Lake and Their Contributions to Lake Loading |
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| REN Jia-guo,JIA Hai-bin,JIAO Li-xin,WANG Yi-ru,YANG Su-wen,WU Qian-qian,GAO Qiu-sheng,CUI Zhi-dan and HAO Zi-feng.Characteristics of Nitrogen and Phosphorus Formation in Atmospheric Deposition in Dianchi Lake and Their Contributions to Lake Loading[J].Chinese Journal of Environmental Science,2019,40(2):582-589. |
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| Authors: | REN Jia-guo JIA Hai-bin JIAO Li-xin WANG Yi-ru YANG Su-wen WU Qian-qian GAO Qiu-sheng CUI Zhi-dan and HAO Zi-feng |
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| Institution: | College of Geoscience and Engineering, Shandong University of Science and Technology, Qingdao 266590, China,College of Geoscience and Engineering, Shandong University of Science and Technology, Qingdao 266590, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;Key Laboratory of Pollution and Management in Yunnan Plateau Lake Basin, Kunming 650034, China,State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;Key Laboratory of Pollution and Management in Yunnan Plateau Lake Basin, Kunming 650034, China,State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;Key Laboratory of Pollution and Management in Yunnan Plateau Lake Basin, Kunming 650034, China,State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China,College of Geoscience and Engineering, Shandong University of Science and Technology, Qingdao 266590, China,State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China,College of Geoscience and Engineering, Shandong University of Science and Technology, Qingdao 266590, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China and College of Geoscience and Engineering, Shandong University of Science and Technology, Qingdao 266590, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | To examine the effects of seasonal changes and precipitation on the concentrations of various nitrogen and phosphorus forms in Dianchi Lake, the concentrations of various nitrogen and phosphorus forms of atmospheric deposition were determined by UV spectrophotometry. Additionally, the contributions of nitrogen and phosphorus to water pollution in Dianchi Lake were discussed. The results showed that the atmospheric depositional nitrogen concentration in Dianchi Lake is generally consistent with the characteristics of the low rainy season and high dry season. The nitrogen and phosphorus load of atmospheric deposition was positively correlated with rainfall. Seasonal changes were mainly characterized by low dry season and high rainy season. The atmospheric depositional nitrogen load was dominated by dissolved inorganic nitrogen, which accounted for 63.70% of the total nitrogen deposition load. The phosphorus load was mainly PP, which accounted for 45.54% of the total phosphorus precipitation load. Excessive fertilization and loss of nitrogen and phosphorus from fertilizers are the major sources of nitrogen and phosphorus in atmospheric wet deposition. Combined with data from rivers entering the lake, the settlements of TN and TP in the atmospheric deposition of Dianchi Lake were 6.14% and 12.76% of the river load, respectively. Therefore, the primary source of pollution in Dianchi Lake was still the load brought by the river into the lake. However, the nitrogen and phosphorus fluxes in the atmospheric deposition of Dianchi Lake were at intermediate levels compared with other regions, so this contribution requires further investigation. |
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| Keywords: | Dianchi Lake atmospheric deposition nitrogen and phosphorus morphological characteristics loading into the lake |
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