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Tundra - Carbon Sink to Source
April 28 , 2024
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- Arctic and alpine tundra ecosystems are known to be large reservoirs of organic carbon.
- The warming planet may alter the characteristics of tundra environments and could transform them from carbon sinks to carbon sources.
- Rising temperatures change the biogeochemistry of an area, affecting local soil by altering nitrogen levels and Ph.
- A mean increase of 1.4 degrees Celsius in air temperature, 0.4°C in soil temperature and a 1.6 per cent drop in soil moisture led to a 30 per cent increase in respiration during the growing season.
- The warming rate in the tundra biome could reach 0.73°C per decade, significantly outpacing the global average rate of 0.19°C per decade.
- Furthermore, soil moisture decreased by 1.6 percent, influencing the tundra’s ability to function as a carbon sink.
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