New study reminded to conserve sea travel

New study reminded to conserve sea travel

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Canberra: Carbon dioxide emissions have increased by as much as five million cars a year since the 1950s due to the loss of sea grasslands around the Australian coastline, according to a new study.
The discovery made possible by new modeling done by marine scientists at the Center for Marine Ecosystem Research at Edith Cowan University (ECU), Western Australia.
PhD student Christian Salinas calculated that about 161,150 hectares of sea grass have been lost off Australian shores since the 1950s, resulting in a 2 percent increase in annual carbon dioxide emissions from land-use changes.
The figures derive from Salinas’ research into the current carbon stock of Cockburn Sound off the coast of Western Australia.
Between 1960 and 1990, Cockburn Sound became about 23 sq km due to overflow of nutrients due to urban, port and industrial development.
Salinas said the discovery is important because sea grassland grasses play such an important role in mitigating the effects of climate change.
Known as “blue carbon”, the seagrasses have been estimated to store CO2 in the soil approximately 30 times faster than most terrestrial forests. ”
“Seagrass grasslands have been a constant threat in Australia since the 1960s through coastal development and nutrient runoff. Climate change is causing sea heat that is devastating for seafarers. This study Important for these environments., “She added.
Salinas said the study provided a clear baseline for carbon emissions from marine damage in Australia and warned of the need to conserve and restore grasslands. He said that the inclusion of sea travel in the Australian Emissions Reduction Fund could contribute to achieving this goal.
Researchers at the ECU assessed how environmental factors such as water depth, hydrodynamic energy, rate of soil accumulation and soil grain size related to the storage of soil grains after seawater loss.
Results showed that erosion and loss of seawater alone was not sufficient to cause carbon loss from the soil – hydrodynamic energy from waves, tides, and currents also played a significant role.
“Without a marine organism acting as a buffer in the ocean, hydrodynamic energy from the ocean releases carbon by moving the sand around the ocean,” Salinas Zapata said.
Researchers found that hydrodynamic energy from the movement of water was much higher in shallow water and associated lower levels of carbon were recorded in these bare areas.
However, seabed grasslands established in shallow waters were found to store significantly more carbon than those growing in deeper areas.
“This means that adjacent grasslands are particularly important to preserve,” Salinas said.

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