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The emissions of biogenic greenhouse gases from arctic and north boreal soils due to the different tipes of anthropogenic land use at local and regional scales: prospects and dynamicsдоклад на конференции
- Авторы: Karelin D.V., Zazovskaya E.P., Shishkov V.A., Dolgikh A.V., Goryachkin S.V., Pochikalov A.V., Karpov A.A., Antonov E.V., Shorkunov I.G.
- Международная Конференция : the 2nd Pan-Eurasian Experiment (PEEX) Conference and the 6th PEEX Meeting
- Даты проведения конференции: 18-20 мая 2016
- Дата доклада: 19 мая 2016
- Тип доклада: Устный
- Докладчик: Karelin D.V.
- Место проведения: Пекин, China
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Аннотация доклада:
Combined land use effects provide 11% rise in soil CO2 emission rate in warm period of year, whereas in cold season - this adds to initial rate almost 50%. This happens due to local warming of the found “embankment effect” in cold season.As we found, “carbon footprint” per capita in arctic settlement, is 50% higher than in Russia at average. But more important is that soils of settlement were found to be 2nd strongest net source of CO2 to atmosphere after fuel burning (16.5% vs. 70.5%). This is due to changes in soil temperature and moisture balance, additional supply of biogenic chemicals, and permafrost thaw. For instance, the emission of CO2 could be decreased by simple removal of soil snow cover in winter from settlement territory to sea ice – this is equivalent of 10% annual local fuel economy.
- Добавил в систему: Карелин Дмитрий Витальевич