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Article

Identifying the Influence of Land Cover and Human Population on Chlorophyll a Concentrations Using a Pseudo-Watershed Analytical Framework

Department of Biology, York University, Toronto, ON M3J 1P3, Canada
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Water 2020, 12(11), 3215; https://doi.org/10.3390/w12113215
Received: 29 September 2020 / Revised: 4 November 2020 / Accepted: 11 November 2020 / Published: 17 November 2020
(This article belongs to the Special Issue Hydrological Impacts of Climate Change and Land Use)
Increasing agricultural development and urbanization exacerbates the degradation of water quality in vulnerable freshwater systems around the world. Advances in remote sensing and greater availability of open-access data provides a valuable resource for monitoring water quality but harmonizing between databases remains a challenge. Here, we: (i) developed a pseudo-watershed analytical framework to associate freshwater lakes with adjacent land cover and human population data and (ii) applied the framework to quantify the relative influence of land cover and human population on primary production for 9313 lakes from 72 countries. We found that land cover and human population explained 30.2% of the variation in chlorophyll a concentrations worldwide. Chlorophyll a concentrations were highest in regions with higher agricultural activities and human populations. While anthropogenic land cover categories equated to only 4 of the 18 categories, they accounted for 41.5% of the relative explained variation. Applying our pseudo-watershed analytical framework allowed us to quantify the importance of land cover and human population on chlorophyll concentration for over 9000 lakes. However, this framework has broader applicability for any study or monitoring program that requires quantification of lake watersheds. View Full-Text
Keywords: chlorophyll; lake; freshwater; watershed; land cover; human population chlorophyll; lake; freshwater; watershed; land cover; human population
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MDPI and ACS Style

Moslenko, L.; Blagrave, K.; Filazzola, A.; Shuvo, A.; Sharma, S. Identifying the Influence of Land Cover and Human Population on Chlorophyll a Concentrations Using a Pseudo-Watershed Analytical Framework. Water 2020, 12, 3215. https://doi.org/10.3390/w12113215

AMA Style

Moslenko L, Blagrave K, Filazzola A, Shuvo A, Sharma S. Identifying the Influence of Land Cover and Human Population on Chlorophyll a Concentrations Using a Pseudo-Watershed Analytical Framework. Water. 2020; 12(11):3215. https://doi.org/10.3390/w12113215

Chicago/Turabian Style

Moslenko, Luke; Blagrave, Kevin; Filazzola, Alessandro; Shuvo, Arnab; Sharma, Sapna. 2020. "Identifying the Influence of Land Cover and Human Population on Chlorophyll a Concentrations Using a Pseudo-Watershed Analytical Framework" Water 12, no. 11: 3215. https://doi.org/10.3390/w12113215

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