Measured greenhouse gas budgets challenge emission savings from palm-oil biodiesel

Autor: Evelyn Hassler, Aiyen Tjoa, Christian Stiegler, Tania June, Alexander Röll, Thomas Guillaume, Ana Meijide, Alexander Knohl, Edzo Veldkamp, Marife D. Corre, Cristina de la Rúa
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Greenhouse Effect
010504 meteorology & atmospheric sciences
Nitrous Oxide
General Physics and Astronomy
010501 environmental sciences
Arecaceae
Forests
Palm Oil
01 natural sciences
7. Clean energy
Environmental impact
Environmental protection
Environmental impact assessment
lcsh:Science
Biodiesel
Multidisciplinary
Waste management
Sustainable Development
fluxes
ddc
tropical rain-forest
Biofuel
plantations
Methane
energy
life-cycle assessment
Science
General Biochemistry
Genetics and Molecular Biology
Article
Greenhouse Gases
jambi province
trace gases
Element cycles
Palm oil
land-use
conversion
0105 earth and related environmental sciences
business.industry
carbon
Fossil fuel
General Chemistry
15. Life on land
Carbon Dioxide
Carbon neutrality
13. Climate action
Indonesia
Greenhouse gas
Biofuels
Sustainability
Environmental science
lcsh:Q
business
Zdroj: Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Digibug. Repositorio Institucional de la Universidad de Granada
instname
Nature Communications
ISSN: 2041-1723
Popis: Special thanks to our field assistants in Indonesia (Basri, Bayu and Darwis) and to Frank Tiedemann, Edgar Tunsch, Dietmar Fellert and Malte Puhan for technical assistance. We thank PTPN VI and the owner of the plantation at Pompa Air for allowing us to conduct our research at their plantation. We would also like to thank the Spanish national project GEISpain (CGL2014-52838-C2-1-R) and the DAAD (scholarship from the programme ‘Research Stays for University Academics and Scientist 2018, ref. no. 91687130)' for partly financing A. Meijide during the preparation of this paper.
The potential of palm-oil biofuels to reduce greenhouse gas (GHG) emissions compared with fossil fuels is increasingly questioned. So far, no measurement-based GHG budgets were available, and plantation age was ignored in Life Cycle Analyses (LCA). Here, we conduct LCA based on measured CO2, CH4 and N2O fluxes in young and mature Indonesian oil palm plantations. CO2 dominates the on-site GHG budgets. The young plantation is a carbon source (1012 ± 51 gC m−2 yr−1), the mature plantation a sink (−754 ± 38 gC m−2 yr−1). LCA considering the measured fluxes shows higher GHG emissions for palm-oil biodiesel than traditional LCA assuming carbon neutrality. Plantation rotation-cycle extension and earlier-yielding varieties potentially decrease GHG emissions. Due to the high emissions associated with forest conversion to oil palm, our results indicate that only biodiesel from second rotation-cycle plantations or plantations established on degraded land has the potential for pronounced GHG emission savings.
This study was financed by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)— Project-ID 192626868—in the framework of the collaborative German-Indonesian research project CRC990 (subprojects A03, A04 and A05).
Spanish national project GEISpain (CGL2014-52838-C2-1-R) and the DAAD (scholarship from the programme ‘Research Stays for University Academics and Scientist 2018, ref. no. 91687130)
Databáze: OpenAIRE
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