Abstract
This project was funded by the Natural Environmental Research Council, UK (grant code: 1368637) and the Malaysian Palm Oil Board (grant code: R010913000).
Highlights
Palm oil currently makes a significant contribution to feeding the world, which is expected to continue with increased population growth, and helps with climate change mitigation, for example through high rates of photosynthesis taking CO2 from the atmosphere and it’s use for bioenergy (Fowler et al, 2011; Fuss et al, 2016; IPCC, 2018; Meijaard et al, 2018)
CO2 and CH4 fluxes varied significantly when measured from different surface microforms in two oil palm plantations on peat soil
The highest soil CO2 and CH4 fluxes were measured next to the palms. This pattern was attributed to the high density of roots in the palm rhizosphere; root biomass was greatest within the immediate 1 m radius around each palm, and decreased with increasing distance from the palm (Farmer, 2013; Dariah et al, 2014; Manning, 2019; Manning et al, in preparation). In these studies Rtot and soil respiration were measured at consistent intervals from the palm into the harvest path (Farmer, 2013; Dariah et al, 2014), frond pile and cover plants (Manning, 2019; Manning et al, in preparation) from mature oil palm plantations in Jambi, Indonesia (Farmer, 2013; Dariah et al, 2014) and PLANTATION CO2 CONTRIBUTIONS PER COMPONENT FLUX (EXCLUDING Ra)
Summary
Palm oil currently makes a significant contribution to feeding the world, which is expected to continue with increased population growth, and helps with climate change mitigation, for example through high rates of photosynthesis taking CO2 from the atmosphere and it’s use for bioenergy (Fowler et al, 2011; Fuss et al, 2016; IPCC, 2018; Meijaard et al, 2018). Indonesia and Malaysia currently dominate both the production and export of palm oil (FAOSTAT, 2019; USDA, 2019). Since 1980, oil palm plantations have been established on peat soils in these countries, due to the decline in available suitable mineral soils, which are preferred (Silvius and Diemont, 2007; Corley and Tinker, 2008; Miettinen et al, 2016). Oil palm plantations growing on peat soils are subject to debate concerning the magnitude of CO2 and CH4 losses from the peat (Evers et al, 2017; Wijedasa et al, 2017)
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