Fuelwood sustainability revisited: integrating size structure and resprouting into a spatially realistic fuelshed model

Twine, Wayne; Holdø, Ricardo M.

doi:10.1111/1365-2664.12713

Cited by 32 publications

(25 citation statements)

References 50 publications

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“…The woodfuel crisis has not materialized [ 40 , 41 ], but there has been some suggestion that there might be a return to it [ 42 ], largely due to intense exploitation of woodlands occurring at ‘hot spots’ around large urban centres. However, the ecological evidence is sparse to support the view that charcoal production causes widespread deforestation and severe impacts [ 16 , 43 , 44 ], and the sustainability of charcoal production is highly context-specific. Concerns over sustainability and impacts of charcoal production at ‘hot spots’ remain well-founded, and management challenges for charcoal production are to avoid the creation of over harvesting in ‘hot spots’, leading to deforestation.…”

Section: Discussionmentioning

confidence: 99%

Charcoal production in the Mopane woodlands of Mozambique: what are the trade-offs with other ecosystem services?

Woollen

Ryan

Baumert

et al. 2016

Phil. Trans. R. Soc. B

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African woodlands form a major part of the tropical grassy biome and support the livelihoods of millions of rural and urban people. Charcoal production in particular is a major economic activity, but its impact on other ecosystem services is little studied. To address this, our study collected biophysical and social datasets, which were combined in ecological production functions, to assess ecosystem service provision and its change under different charcoal production scenarios in Gaza Province, southern Mozambique. We found that villages with longer histories of charcoal production had experienced declines in wood suitable for charcoal, firewood and construction, and tended to have lower perceived availabilities of these services. Scenarios of future charcoal impacts indicated that firewood and woody construction services were likely to trade-off with charcoal production. However, even under the most extreme charcoal scenario, these services were not completely lost. Other provisioning services, such as wild food, medicinal plants and grass, were largely unaffected by charcoal production. To reduce the future impacts of charcoal production, producers must avoid increased intensification of charcoal extraction by avoiding the expansion of species and sizes of trees used for charcoal production. This is a major challenge to land managers and policymakers in the area.This article is part of the themed issue ‘Tropical grassy biomes: linking ecology, human use and conservation’.

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Section: Discussionmentioning

confidence: 99%

Charcoal production in the Mopane woodlands of Mozambique: what are the trade-offs with other ecosystem services?

Woollen

Ryan

Baumert

et al. 2016

Phil. Trans. R. Soc. B

View full text Add to dashboard Cite

show abstract

“…In some regions (e.g. South Africa), fuelwood harvesting is considered sustainable due to regeneration after coppicing [79], possibly facilitated by CO 2 fertilization (e.g. [80]).…”

Section: Human Use and Valuementioning

confidence: 99%

Tropical grassy biomes: linking ecology, human use and conservation

Lehmann

Parr

2016

Phil. Trans. R. Soc. B

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Tropical grassy biomes (TGBs) are changing rapidly the world over through a coalescence of high rates of land-use change, global change and altered disturbance regimes that maintain the ecosystem structure and function of these biomes. Our theme issue brings together the latest research examining the characterization, complex ecology, drivers of change, and human use and ecosystem services of TGBs. Recent advances in ecology and evolution have facilitated a new perspective on these biomes. However, there continues to be controversies over their classification and state dynamics that demonstrate critical data and knowledge gaps in our quantitative understanding of these geographically dispersed regions. We highlight an urgent need to improve ecological understanding in order to effectively predict the sensitivity and resilience of TGBs under future scenarios of global change. With human reliance on TGBs increasing and their propensity for change, ecological and evolutionary understanding of these biomes is central to the dual goals of sustaining their ecological integrity and the diverse services these landscapes provide to millions of people. This article is part of the themed issue ‘Tropical grassy biomes: linking ecology, human use and conservation’.

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“…The topography is undulating to flat and is underlain primarily by pottasic granites, except for a gabbro intrusion in the east (Bushbuck site). On the granite bedrock, soils grade along the catena from shallow sandy Lithosols on the hillcrests, to duplex soils on the mid‐slopes, and sodic clays in the bottomlands (Shackleton, 2000; Twine and Holdo, 2016). Dark Vertisols characterize the gabbo intrusion.…”

Section: Methodsmentioning

confidence: 99%

Spatial Gradients of Ecosystem Health Indicators across a Human‐Impacted Semiarid Savanna

et al. 2018

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Drivers of soil organic carbon (SOC) dynamics involve a combination of edaphic, human, and climatic factors that influence and determine SOC distribution across the landscape. High-resolution maps of key indicators of ecosystem health can enable assessments of these drivers and aid in critical management decisions. This study used a systematic field-based approach coupled with statistical modeling and remote sensing to develop accurate, high-resolution maps of key indicators of ecosystem health across savanna ecosystems in South Africa. Two 100-km landscapes in Bushbuckridge Local Municipality were surveyed, and 320 composite topsoil samples were collected. Mid-infrared spectroscopy was used to predict soil properties, with good performance for all models and root mean squared error of prediction (RMSEP) values of 1.3, 0.2, 5, and 3.6 for SOC, pH, sand, and clay, respectively. Validation results for the mapping of soil erosion prevalence and herbaceous cover using RapidEye imagery at 5-m spatial resolution showed good model performance with area under the curve values of 0.80 and 0.86, respectively. The overall (out-of-bag) random forest model performance for mapping of soil properties, reported using , was 0.8, 0.77, and 0.82 for SOC, pH, and sand, respectively. Calibration model performance was good, with RMSEP values of 2.6 g kg for SOC, 0.2 for pH, and 6% for sand content. Strong gradients of increasing SOC and pH corresponded with decreasing sand content between the study sites. Although both sites had low SOC overall, important driving factors of SOC dynamics included soil texture, soil erosion prevalence, and climate. These data will inform strategic land management decisions focused particularly on improving ecosystem conditions.

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Fuelwood sustainability revisited: integrating size structure and resprouting into a spatially realistic fuelshed model

Cited by 32 publications

References 50 publications

Charcoal production in the Mopane woodlands of Mozambique: what are the trade-offs with other ecosystem services?

Charcoal production in the Mopane woodlands of Mozambique: what are the trade-offs with other ecosystem services?

Tropical grassy biomes: linking ecology, human use and conservation

Spatial Gradients of Ecosystem Health Indicators across a Human‐Impacted Semiarid Savanna

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