Carbon sources and sinks in recovering logged forests
Are recovering logged forests a carbon sink due to increased tree growth rates or a carbon source due to carbon losses from soil organic matter and deadwood? Our research shows that sources outweigh sinks for at least the first decade after logging.
Metabolic approach to forest ecosystem health
Do metabolic ecology approaches offer a useful new approach to assessing ecosystem health and nature recovery? Our research uses areas of old growth and selectively logged forest to assess this approach.
Active restoration of selectively logged forest
The dipterocarp trees that dominate the lowland forests of Southeast Asia have traits that mean they may be slow to naturally recover from selective-logging and other disturbances. Can active restoration techniques accelerate forest recovery? Our research uses the experimental treatments of Sabah Biodiversity Experiment to assess the effectiveness of replanting with different species and of ‘climber cutting’ – the removal of climbing liana species.
The natural value of recovering selectively logged forests
Large areas of forest in Borneo have been selectively logged and are now undergoing recovery – how do these selectively logged forests differ from their undisturbed old growth counterparts and what are the consequences if they are converted to oil palm plantation?
Bending the curve of biodiversity loss requires the business and financial sectors to disclose and reduce their biodiversity impacts and help fund nature recovery. This has sparked interest in developing generalizable, standardized measurements of biodiversity—essentially a ‘unit of nature’. We examine how such units are defined in the rapidly growing voluntary biodiversity credits market and present a framework exploring how biodiversity is quantified, how delivery of positive outcomes is detected and attributed to the investment and how the number of credits issued is adjusted to account for uncertainties….
Tropical forests dominate terrestrial photosynthesis, yet there are major contradictions in our understanding due to a lack of field studies, especially outside the tropical Americas. A recent field study indicated that West African forests have among the highest forests gross primary productivity (GPP) yet observed, contradicting models that rank them lower than Amazonian forests. Here, we explore possible reasons for this data-model mismatch. We found the in situ GPP measurements higher than multiple global GPP products at the studied sites in Ghana. The underestimation of GPP by models largely disappears when a standard photosynthesis model is informed by local field-measured values of (a) fractional absorbed photosynthetic radiation (fAPAR), and (b) photosynthetic traits. Satellites systematically underestimate fAPAR in the tropics due to cloud contamination issues. The study highlights the potential widespread underestimation of tropical forests GPP and carbon cycling and hints at the ways forward for model and input data improvement.
Current aspirations for nature recovery to address biodiversity loss and climate change will involve changing what landscapes look like, which can create challenging aesthetic experiences for members of the public.
In this study, we interrogate the role of aesthetics in shaping visions of nature recovery, focussing on the construction and contestation of ‘mess’ and ‘messiness’ in nature recovery.
Highlights
• Local planning constraints deliver poor biodiversity net gain (BNG) offsets
• Removing those constraints results in significant BNG improvements
• Alternatively, offsets can deliver gains in environmental access
Tree diseases are one of the major threats to forests worldwide. As the frequency and severity of disease outbreaks increase, effective prevention and mitigation strategies are urgently needed. Emerging methods are available to tackle this issue, however, trade-offs and potential ecological consequences should be considered for successful forest preservation.
