Invasive Plants May Boost Blue Carbon Storage

When invasive species enter picture, things are rarely black and white. A new paper has revealed that some plant invers could help fight climate change by making it easier for ecosystems to store "blue carbon"- carbon stored in coastal environments like salt marshes, mangroves, and seagrasses.

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Le author Ian Davidson said, "We were aware of effects of invasions on or facets of se habitats, but this was first time we really delved into blue carbon stor." While blue carbon has become a buzzword in climate change circles, it has t appeared in many conversations about invasive species, especially in marine realm.

paper is first meta-analysis to look exclusively at marine habitats when tackling issue of invasions and carbon stor. Previous carbon stor research has focused largely on terrestrial environments like forests."It's w part of global climate change solutions to get carbon credits in forests. But for blue-carbon habitats, marine version, that has been slower to materialize," said co-author Christina Simkanin.

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scientists used data to calculate how much plant-based biomass or soil carbon changed in each place in presence of an inver. Over time, plant-based pools of biomass can be converted into valuable blue-carbon stor "sinks" that are locked in soils beneath se habitats.

authors also cautioned against viewing invasive species as unlikely heroes. Carbon stor is one metric that some invers could enhance, but manrs still need to consider or impacts invers can have, such as biodiversity loss or habitat shrinking.

real question, authors said, is how to man environments where an invasive species has alrey taken hold and evaluate true costs and benefits of erication."Ecosystem manrs will be faced with a decision to ericate or control invasive species," said Cott. " information contained in this study can help manrs make decisions if carbon stor is a function y want to enhance." study appeared in Journal `Global Change Biology`.

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