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


ABSTRACT: 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 ~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.

SUBMITTER: Chen M 

PROVIDER: S-EPMC4609951 | biostudies-literature |

REPOSITORIES: biostudies-literature

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