Global Landscape of Total Organic Carbon, Nitrogen and Phosphorus in Lake Water

被引：44
作者：
Chen, Ming [1 ,2 ]
Zeng, Guangming [1 ,2 ]
Zhang, Jiachao [1 ,2 ,3 ]
Xu, Piao [1 ,2 ]
Chen, Anwei [1 ,2 ,3 ]
Lu, Lunhui [1 ,2 ]
机构：
[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
[2] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China
[3] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China
来源：
SCIENTIFIC REPORTS | 2015年 / 5卷
基金：
中国国家自然科学基金;
关键词：
CLIMATE; CYCLE; STOICHIOMETRY; FEEDBACKS; REGIONS;
D O I：
10.1038/srep15043
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Human activities continue to increase the amount of carbon (C), nitrogen (N) and phosphorus (P) in lakes, which may cause serious environmental and human health problems. Global landscape of total organic C (TOC), N and P in lake water is still poorly known. Using a global data set that covers similar to 8300 lakes from 68 countries/regions spanning six continents, we estimate that global mean concentrations and storage in lake water are 5.578 mg L-1 and 984.0 Tg for TOC, 0.526 mg L-1 and 92.8 Tg for TN, and 0.014 mg L-1 and 2.5 Tg for TP. These lake elements are significantly interrelated and in uneven distribution, being associated with morphological characteristics and climate conditions. We proposed that global C, N and P cycles should be considered as a whole in biogeochemical studies and policy-making related to environmental protection.
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页数：7
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