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Nova Scotia lakes-OECD chlorophyll/inlake phosphorus regressions

Research of the Organization for Economic Co-Operation and Development (OECD)

Soil & Water Conservation Society of Metro Halifax (SWCSMH)

Updated: August 12, 2015                              Eutrophication of Waters (OECD)

Comparison of the regression of the historical lake data in Nova Scotia with the OECD regression of chlorophyll/inlake phosphorus

Select published lake data of Nova Scotia from various references were plotted in Figure-9 below and the regression derived. In addition the chlorophyll/inlake phosphorus regression from the OECD (Vollenweider and Kerekes, 1982) was also plotted in order to ascertain the applicability of the OECD research to the Nova Scotia case. While the OECD relationships were originally plotted on a log-log graph, we decided to plot on a linear scale due to the low relative data range of our Nova Scotia lakes. The source references of the Nova Scotia lake data are given below the Figure-9.

It can be concluded that the OECD regression of TP/Cha predicts the average lake response, TP/Cha in Nova Scotia with a relative high confidence!

Figure-9: Comparison between the Nova Scotia lakes and the OECD regressions for the chlorophyll/inlake phosphorus concentrations:

HRM-OECD regressions

Data sources:

Eutrophication of Waters (OECD)                     Soil & Water Conservation Society of Metro Halifax (SWCSMH) Master Homepage

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