Soil fertility changes following conversion of grassland to oil palm

Nelson, Paul N.; Banabas, Murom; Nake, Steven; Goodrick, I.; Webb, Michael J.; Gabriel, E.

doi:10.1071/sr14049

Cited by 13 publications

(11 citation statements)

References 22 publications

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“…A similar finding was reported by Guillaume et al (2016), who attributed the high soil degradation under oil palm plantations to management strategies adopted especially in interrow. In addition, Nelson et al (2014) reported a significant decline in soil fertility following the conversion of grassland to oil palm plantation. The variation in soil fertility distribution may be related to differences in nutrient cycling mechanism under varying vegetation types.…”

Section: Spatial Pattern Of Sfi Under Rainforest and Tree Plantationsmentioning

confidence: 99%

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Impacts of land‐use changes on soil fertility in Okomu Forest Reserve, Southern Nigeria

et al. 2021

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This study assessed changes in soil properties and soil fertility resulting from landuse conversion from rainforest to oil palm and rubber plantations in Okomu Forest Reserve, Southern Nigeria. We collected 315 soil samples at 0-15, 15-30, and 30-60 cm and analyzed soil physicochemical properties. In addition, soil fertility index (SFI) was computed using the analytical hierarchical process. Our results showed that soil organic carbon declined by 40% and 60% (0-15 cm), 32% and 57% (15-30 cm) and 33% and 57% (30-60 cm) in oil palm and rubber plantations, respectively. Similarly, total nitrogen also declined by 43% and 56% (0-15 cm), 34% and 36% (15-30 cm), and 36% and 41% (30-60 cm) in oil palm and rubber plantations and was significantly lower in plantation soil than in the rainforest soil. Soil organic carbon and total nitrogen were, however, higher under oil palm than rubber planta-

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Section: Spatial Pattern Of Sfi Under Rainforest and Tree Plantationsmentioning

confidence: 99%

“…In addition, the high leaf fall may provide soil cover, which may reduce erosion and leaching in rubber plantations (Guillaume et al, 2016). Soil fertility in oil palm plantation has been known to improve under frond piles while it reduces in other zones (Nelson et al, 2014).…”

Section: Spatial Pattern Of Sfi Under Rainforest and Tree Plantationsmentioning

confidence: 99%

Impacts of land‐use changes on soil fertility in Okomu Forest Reserve, Southern Nigeria

et al. 2021

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“…Where oil palm and rubber plantations or even pasture lands become flooded, CH 4 emissions increase because methanogens utilize labile C substrates under anaerobic conditions, resulting in CH 4 production [61,63,[69][70][71]; this is generally related to soil fertility [72]. CO 2 emissions from soil, calculated from net SOC changes (primarily from heterotrophic respiration), varied between 1 t/ha/year (from grassland to oil palm plantation) and 5.5 t/ha/year (from slash-burn agriculture to oil palm plantation) ( Table 2) [42,[73][74][75][76][77][78][79][80][81]. Land use change from secondary forest to oil palm and degraded grassland to young rubber tree plantation may even create a soil CO 2 sink (2-3.7 t/ha/year), although only limited data are available at this stage to support this claim for young rubber plantations.…”

Section: Effect Of Different Land Uses On Ghg Fluxes From Tropical MImentioning

confidence: 99%

SOC Stock Changes and Greenhouse Gas Emissions Following Tropical Land Use Conversions to Plantation Crops on Mineral Soils, with a Special Focus on Oil Palm and Rubber Plantations

et al. 2018

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The increasing global demand for vegetable oils has resulted in a significant increase in the area under oil palm in the tropics during the last couple of decades, and this is projected to increase further. The Roundtable on Sustainable Palm Oil discourages the conversion of peatlands to oil palm and rubber plantations. However, our understanding of the effects on soil organic carbon (SOC) stocks and associated greenhouse gas (GHG) emissions of land use conversion is incomplete, especially for mineral soils under primary forests, secondary forests, rubber and other perennial plantations in the tropics. In this review we synthesised information on SOC stocks and GHG emissions from tropical mineral soils under forest, oil palm and rubber plantations and other agroecosystems across the tropical regions. We found that the largest SOC losses occurred after land use conversion from primary forest to oil palm and rubber plantations. Secondary forest and pasture lands showed lower SOC losses as well as total GHG (CO2, N2O and CH4) emissions when converted to oil palm and rubber plantations. However, due to the limited data available on all three GHG emissions, there remains high uncertainty in GHG emissions estimates, and regional GHG accounting is more reliable. We recommend long-term monitoring of oil palm and other perennial plantations established on tropical mineral soils on different soil types and regions on SOC stock changes and total GHG emissions and evaluate appropriate management practices to optimise production and sustainable economic returns, and minimise environmental impact.

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“…For example, adding crop residues can increase SOC and soil fertility, and improve degraded savanna soils (Rhebergen et al, 2020 ; Tao et al, 2016 , 2017 ). Fine‐scale spatial differences in soil properties are common in OP plantations due to the distribution of litter and other crop residue inputs as well as fertilizer within plantations (Nelson et al, 2014 ; Rüegg et al, 2019 ). This non‐random distribution of nutrient resources within plantations should be considered when assessments of soil properties and processes are attempted (Goodrick et al, 2016 ; Nelson et al, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Deforestation‐free land‐use change and organic matter‐centered management improve the C footprint of oil palm expansion

Quezada

Guillaume

Poeplau

et al. 2022

Global Change Biology

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In recent decades, mounting evidence has indicated that the expansion of oil palm (OP) plantations at the expense of tropical forest has had a far pernicious effect on ecosystem aspects. While various deforestation-free strategies have been proposed to enhance OP sustainability, field-based evidence still need to be consolidated, in particular with respect to savanna regions where OP expansion has recently occurred and that present large area with potential for OP cultivation. Here we show that the common management practice creating within the plantation the so-called management zones explained nearly five times more variability of soil biogeochemical properties than the savanna land-use change per se. We also found that clayey-soil savanna conversion into OP increased total ecosystem C stocks by 40 ± 13 Mg C ha −1 during a full OP cultivation cycle, which was due to the higher OP-derived C accumulated in the biomass and in the soil as compared to the loss of savanna-derived C. In addition, application of organic residues in specific management zones enhanced the accumulation of soil organic carbon by up to 1.9 Mg ha −1 year −1 over the full cycle. Within plantation, zones subjected to organic amendments sustained similar soil microbial activity as in neighboring savannas. Our findings represent an empirical proof-of-concept that the conversion of non-forested land in parallel with organic matter-oriented management strategies can enhance OP agroecosystems C sink capacity while promoting microbe-mediated soil functioning. Nonetheless, savannas are unique and threatened ecosystems that support a vast biodiversity. Therefore, we suggest to give priority attention to conservation of natural savannas and direct more research toward the impacts of the conversion and subsequent management of degraded savannas.

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Soil fertility changes following conversion of grassland to oil palm

Cited by 13 publications

References 22 publications

Impacts of land‐use changes on soil fertility in Okomu Forest Reserve, Southern Nigeria

Impacts of land‐use changes on soil fertility in Okomu Forest Reserve, Southern Nigeria

SOC Stock Changes and Greenhouse Gas Emissions Following Tropical Land Use Conversions to Plantation Crops on Mineral Soils, with a Special Focus on Oil Palm and Rubber Plantations

Deforestation‐free land‐use change and organic matter‐centered management improve the C footprint of oil palm expansion

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