Carbon sink and CarbonSink+ : from observations to global potential
Rattachement africain : Afrique du Sud, rs, fi, us. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Carbon balance of forests is defined by three main processes; photosynthesis, autotrophic respiration, and heterotrophic respiration. Climate impact of forests include also non-carbon effects like albedo, biogenic aerosols, effect on clouds, evaporation and surface roughness. A well-thought measurement setup as well as standardised procedures are essential for a meaningful and robust monitoring and the comparability of the observations at the same site and in inter-site comparisons. Depending on the mitigation project objectives and scale different combination of methodologies could be used including forest carbon inventories, chamber measurements, tower-based eddy covariance flux measurements, large-scale atmospheric greenhouse gas measurements, aircraft and satellite remote sensing. In addition to GHGs, forests have other important climate effects. They change surface albedo (warming effect), are source of volatile organic compounds (VOC), have effect on aerosol particle formation and growth, increases amount of cloud condensation nuclei (CCN), and has effect on cloud formation as well as on the precipitation. Moreover, any modification of the carbon cycle by removing or increasing CO2-binding vegetation has impact on the complex climate - carbon cycle feedback. We define these additional cooling effects as CarbonSink+. Accounting all these effects, this CarbonSink+ may increase the climate cooling impact of forests compared with pure carbon sink effect. Land use based mitigation plays an important role in current Nationally Determined Contributions of Paris Agreement. Scientific findings indicate that through different actions land sector could provide up to 1/3 of the needed total mitigation through year 2030. However, permanence of ecosystem based carbon storages is still a challenge and trade-offs between different land use form exist and should be properly acknowledged in the mitigation projects. We define in this report a cost effective, i.e. as simple as possible but good enough, measurement setup to verify both ordinary carbon sink and CarbonSink+ -effect. The methodology is planned for commercial applications, rather than for scientific purposes. The estimated prices of the instrumentation are based on present-day situation. In the conclusions of the report, we also describe first level principles and challenges which could help to formulate protocols for larger framework needed for the global commercial carbon market
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
Où se fait cette recherche
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Sustainability Institute Afrique du Sud (code pays fourni par la source)Organisation à but non lucratif
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Institute of Forestry pays non établi dans la noticeUniversité ou école supérieure
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Finnish Meteorological Institute pays non établi dans la noticeOrganisme public
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Integrated Carbon Observation System pays non établi dans la noticeInstitution
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Southwest University of Visual Arts pays non établi dans la noticeUniversité ou école supérieure
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University of Helsinki pays non établi dans la noticeUniversité ou école supérieure
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Finland University pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Agriculture and Forestry Helsinki Institute of Sustainability Science pays non établi dans la noticeUniversité ou école supérieure
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Institute for Atmosphere and Earth System Research/ Forest Sciences pays non établi dans la noticeStructure de recherche
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Helsinki Institute of Sustainability Science (HELSUS) pays non établi dans la noticeStructure de recherche
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Avdelningen för skogsvetenskaper pays non établi dans la noticeInstitution
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Institute for Atmosphere and Earth System Research/ Physics pays non établi dans la noticeStructure de recherche
Sustainability Institute (Afrique du Sud), Institute of Forestry et Finnish Meteorological Institute, avec 9 autres affiliations. Pays d’affiliation : Afrique du Sud.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.