Carbon storage in eucalyptus and pine plantations in South Africa

Christie, S. I.; Scholes, Robert J.

doi:10.1007/bf00546765

Cited by 22 publications

(7 citation statements)

References 8 publications

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“…Below-ground sequestration estimates assumed no soil C flux. Similar assumptions were used for sequestration estimates in South Africa [35] and China [36,37].…”

Section: Discussionmentioning

confidence: 99%

Carbon Sequestration by Eucalypts in Florida, USA: Management Options Including Biochar and Associated Economics

Rockwood¹,

Fabbro²,

Ellis³

et al. 2022

Carbon Sequestration

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Growth and economic models for E. grandis in mulch wood rotations, for E. grandis and E. grandis x E. urophylla cultivars grown as short-rotation woody crops (SRWC), including coppicing, for E. grandis in windbreaks (WB), with and without soil amendments including biochar (BC) and the slow-release fertilizer Green Edge (SRF, GE), and for E. grandis in dendroremediation applications estimated the above- and below-ground carbon sequestration potentials of these management options. The cultivars may sequester over 10 Mg of C/ha/year as SRWCs. Under assumed management costs and market conditions, SRWC management with BC is more profitable than operational culture if BC application costs are ≤$450/Mg. Longer rotations with less intensive management result in lower but still considerable sequestration and economic benefit. In WBs, E. grandis cultivars may sequester up to 34 Mg of C/ha in 3 years, with additional sequestration by amending soil with BC, GE, and BC + GE. Amending soil with BC derived from eucalypts is both a long-term sequestration strategy and an opportunity to increase plantation and crop productivity. Demand for sustainably produced BC is growing due to multiple applications beyond soil carbon sequestration.

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“…Below-ground sequestration estimates assumed no soil C flux. Similar assumptions were used for sequestration estimates in South Africa [35] and China [36,37].…”

Section: Discussionmentioning

confidence: 99%

Carbon Sequestration by Eucalypts in Florida, USA: Management Options Including Biochar and Associated Economics

Rockwood¹,

Fabbro²,

Ellis³

et al. 2022

Carbon Sequestration

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“…Human settlements adjacent to protected areas may serve as sources of propagules of alien species, as well as drivers of disturbance that render areas inside protected areas more susceptible to invasion (Alston and Richardson, 2006;Jarošík et al, 2011). Furthermore, in an attempt to curb climate change, carbon sequestration projects are being imple mented, often in the form of plantations of fast-growing alien trees such as Pinus and Eucalyptus (Christie and Scholes, 1995), trees that have escaped the plantations and are invading the South African landscape. However, some sequestration projects are focusing on rehabilitating degraded range lands using indigenous species.…”

Section: Indirect Effectsmentioning

confidence: 99%

“…Although the cultivation of alien plants for the production of biofuels may, in some cases, have clear economic benefi ts, there are many environmental costs that need to be considered, including the problem that many of the species most suitable for biofuel production are notorious invasive species (Raghu et al, 2006;Blanchard et al, 2011). Similarly, invasions have resulted and can be expected where plants are cultivated in carbon sequestration projects (Christie and Scholes, 1995;de Wit et al, 2001).…”

Section: New Threatsmentioning

confidence: 99%

Climate change and alien species in South Africa.

Irlich

Richardson

Davies

et al. 2014

Invasive Species and Global Climate Change

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South Africa has a long history of human-mediated introductions of species from all major taxonomic groups. Close to 9000 alien terrestrial plant species have been introduced, and all of the country's biomes have already been invaded. Invasive species are threatening the country's ecosystems in numerous ways, but the effect of climate change on these invasions is predicted to be complex and cascading and remains poorly understood. The relationship between climate and invasive species biology is well established, and there is no question that climate change will influence the ecology of invasive species significantly. If left un-managed, these effects are expected to increase substantially. Besides terrestrial plants, numerous animals have also invaded the country's landscapes. South Africa's freshwater ecosystems have been invaded by both alien as well as extralimital introductions (indigenous species outside their historical extent of occurrence). The status of invasion in the marine environment remains poorly studied, and knowledge of the status of invasions and predictions regarding the impacts of climate change remain largely speculative. This chapter highlights the current status of invasions in South Africa and discusses some of the direct and indirect effects climate change is likely to have on these invasions.

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“…Year Area (ha) The carbon density of montane grassland, which was replaced by plantation forests, estimated to be 6 Mt C/ha by (Christie and Scholes, 1995) for South Africa, was considered applicable to montane grassland in Swaziland. Timber volumes calculated using timber growth simulation models were converted to carbon density (a measure of the amount of carbon stored by species and age) using the formula:…”

Section: Area (Ha)mentioning

confidence: 99%