| 引用本文: | 曹畅,王胜蕾,李俊生,赵红莉,申维,谢娅.基于MODIS数据的全国144个重点湖库营养状态监测:以2018年夏季为例.湖泊科学,2021,33(2):405-413. DOI:10.18307/2021.0203 |
| Cao Chang,Wang Shenglei,Li Junsheng,Zhao Hongli,Shen Wei,Xie Ya.MODIS-based monitoring of spatial distribution of trophic status in 144 key lakes and reservoirs of China in summer of 2018. J. Lake Sci.2021,33(2):405-413. DOI:10.18307/2021.0203 |
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| 基于MODIS数据的全国144个重点湖库营养状态监测:以2018年夏季为例 |
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曹畅1,2, 王胜蕾2,3, 李俊生2,4, 赵红莉5, 申维1, 谢娅1,2
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1.中国地质大学(北京)地球科学与资源学院, 北京 100083;2.中国科学院空天信息创新研究院, 数字地球重点实验室, 北京 100094;3.北京大学遥感与地理信息研究所, 北京 100871;4.中国科学院大学电子电气与通信工程学院, 北京 100049;5.中国水利水电科学研究院, 水资源研究所, 北京 100048
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| 摘要: |
| 随着经济社会的快速发展和进步，我国湖库水体富营养化情况越来越严重.卫星遥感在水体营养状态监测方面具有重要潜力，但基于卫星遥感的全国范围内湖库水体营养状态监测和分析方面还鲜有研究.本文基于2018夏季的MODIS卫星遥感数据生产FUI指数产品，构建基于FUI水色指数的湖库营养状态评价方法，监测全国范围内144个重点湖库水体的营养状态等级.结果表明：贫营养、中营养、富营养的湖库比例分别为16%、24%、60%；营养状态在空间上分布不均匀，总体上呈现东高西低的现象；东北山地与平原和东部平原湖区以富营养状态水体为主；西部湖库水体以贫到中营养状态为主，尤其是青藏高原湖区贫营养比例比较高；海拔和地表温度等自然因素与工业点源和农业面源污染等人为因素是湖库营养状态的重要影响因素. |
| 关键词: MODIS 湖库 FUI 水色指数 营养状态等级 |
| DOI：10.18307/2021.0203 |
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| 基金项目:国家重点研发计划项目（2017YFC0405804）、国家自然科学基金面上项目（41971318）和高分辨率对地观测系统重大专项（04-Y30B01-9001-18/20）联合资助. |
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| MODIS-based monitoring of spatial distribution of trophic status in 144 key lakes and reservoirs of China in summer of 2018 |
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Cao Chang1,2, Wang Shenglei2,3, Li Junsheng2,4, Zhao Hongli5, Shen Wei1, Xie Ya1,2
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1.School of Earth Sciences and Resources, China University of Geoscience(Beijing), Beijing 100083, P. R. China;2.Key Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, P. R. China;3.Institute of Remote Sensing and Geographic Information System, Peking University, Beijing 100871, P. R. China;4.School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China;5.Department of Water Resources, China Institution of Water Resources and Hydropower Research, Beijing 100048, P. R. China
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| Abstract: |
| With the rapid development of the economy and society, the eutrophication of lakes and reservoirs in China is becoming increasingly serious. Satellite remote sensing has a great potential in the monitoring of water nutrient status, but little research exists on the monitoring and analysis of the water trophic status of lakes and reservoirs on a nationwide scale based on satellite remote sensing. In this study, MODIS data from summer 2018 was used to produce FUI index products, construction of evaluation method of lake and reservoir nutrition state based on FUI water color index and monitored the trophic status of 144 key lakes and reservoirs in China. The results show that the proportion of oligotrophic, mesotrophic, and eutrophic lakes and reservoirs is 16%, 24%, and 60%, respectively. The proportion of eutrophication is very high; the spatial distribution of trophic status is uneven, and the overall eutrophication is higher in the east than the west. Most reservoirs and lakes in the northeast and the east are eutrophic. The water bodies of western lakes are mostly oligotrophic to mesotrophic, an especially high percentage of oligotrophic in the Qinghai Tibet Plateau. Natural factors such as altitude and surface temperature, industrial point source, and agricultural non-point source pollution are important factors influencing the trophic state of lakes and reservoirs. |
| Key words: MODIS lake and reservoir FUI watercolor index trophic status |
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