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Indiana University Research: ‘Just Right’ Plant Growth May Make River Deltas Resilient
Research by Indiana University geologists suggests that an intermediate amount of vegetation — not too little and not too much — is most effective at stabilizing freshwater river deltas.

The study, “Optimum vegetation height and density for inorganic sedimentation in deltaic marshes,” was published online Aug. 24 by Nature Geoscience. The findings may help guide restoration of river deltas, such as those near the mouth of the Mississippi River, which are under threat as sea levels rise.

75 simulations where conducted involving varying scenarios of vegetation height and density and rates of water flow. Researchers found that vegetation of intermediate height and density results in the greatest deposition of sand and mud. However, if the plants are too tall or densely packed, sediment tends to remain in the river channel, bypassing marshes and being carried directly to the sea. aquatic


 
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Algae Bloom Warnings are Overblown - The New York Department of Environmental Conservation issued a toxic algae bloom warning for Black Lake, located in the northern part of New York. Blue-green algae blooms produce toxic microcystis, a chemical with potentially deadly consequences for animals and people who ingest it. Water samples taken from bloom areas were 20 times higher than the recreational contact suggested limit, causing the DEC to issue the warning.


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