Sammanfattning

Accurate estimation of aboveground forest biomass stocks is required to assess the impacts of land use changes such as deforestation and subsequent regrowth on concentrations of atmospheric CO2. The Global Ecosystem Dynamics Investigation (GEDI) is a lidar mission launched by NASA to the International Space Station in 2018. GEDI was specifically designed to retrieve vegetation structure within a novel, theoretical sampling design that explicitly quantifies biomass and its uncertainty across a variety of spatial scales. In this paper we provide the estimates of pan-tropical and temperate biomass derived from two years of GEDI observations. We present estimates of mean biomass densities at 1 km resolution, as well as estimates aggregated to the national level for every country GEDI observes, and at the sub-national level for the United States. For all estimates we provide the standard error of the mean biomass. These data serve as a baseline for current biomass stocks and their future changes, and the mission's integrated use of formal statistical inference points the way towards the possibility of a new generation of powerful monitoring tools from space.

Nyckelord

GEDI; lidar; biomass; carbon; forest structure; hybrid inference

Publicerad i

Environmental Research Letters
2022, Volym: 17, nummer: 9, artikelnummer: 095001
Utgivare: IOP Publishing Ltd

SLU författare

• Ståhl, Göran

  • Institutionen för skoglig resurshushållning, Sveriges lantbruksuniversitet
    

Globala målen

Skydda, återställa och främja ett hållbart nyttjande av landbaserade ekosystem, hållbart bruka skogar, bekämpa ökenspridning, hejda och vrida tillbaka markförstöringen samt hejda förlusten av biologisk mångfald


UKÄ forskningsämne

Fjärranalysteknik
Skogsvetenskap


Publikationens identifierare

DOI: https://doi.org/10.1088/1748-9326/ac8694

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/118782