cover image: Canadian Environmental Sustainability Indicators : Nutrients in Lake Winnipeg

Premium

20.500.12592/kq5d06

Canadian Environmental Sustainability Indicators : Nutrients in Lake Winnipeg

20 Oct 2016

In 2013, phosphorus levels in its North and South basins and the Narrows were above the water quality guidelines for the protection of freshwater plants and animals most of the time. [...] Both phosphorus and nitrogen levels were consistently above water quality guidelines for the protection of freshwater plants and animals in the Red River, and always below the guidelines in the Winnipeg River. [...] Figure 1. Status of phosphorus and nitrogen levels in Lake Winnipeg, Canada, 2013; and in three tributary rivers, Canada, 2011 to 2013 Data for Figure 1 Note: Status colours for the North Basin and the South Basin and the Narrows of Lake Winnipeg were determined by comparing seasonally weighted average total phosphorus and total nitrogen levels in lake water collected from across the basins to the [...] Description and rationale of the Nutrients in Lake Winnipeg indicators Description The Phosphorus and Nitrogen Levels in Lake Winnipeg indicator reports on the status of total phosphorus and total nitrogen concentrations in the North and South basins and the Narrows of Lake Winnipeg and in its major tributaries. [...] A century of agricultural development on the Prairies has increased nitrogen and phosphorus concentrations in the lake to the point where algal growth is approximately 500% greater than it was prior to European settlement.4 The Phosphorus and Nitrogen Levels in Lake Winnipeg indicator assumes that the water in Lake Winnipeg and its tributaries would rarely have phosphorus and nitrogen levels excee
health agriculture environment water quality conservation water natural resources chemicals earth sciences ecology eutrophication livestock environmental pollution rivers ecosystem aquatic ecosystem environmental sustainability nutrients drainage basin environmental science watershed lake winnipeg harmful algal blooms algal blooms algal bloom human activity harmful algal bloom
ISBN
9780660060590
Pages
26
Published in
Gatineau, QC, CA

Related Topics

All