Aboveground biomass and net primary production of pine, oak and mixed pine–oak forests on the Vila Real district, Portugal

Nunes, Leónia; Lopes, Domingos; Rego, Francisco; Gower, Stith T.

doi:10.1016/j.foreco.2013.05.034

Cited by 29 publications

(21 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, we might hypothesize that the carbon stock in living biomass in mixed stands of complementary species will also be higher than in monocultures. Higher productivity in mixed stands as opposed to monospecific stands has also been reported for Mediterranean forests (e.g., Río & Sterba, 2009;Nunes et al, 2013;Riofrío et al, 2017), although it is important to state that the effect of mixing on productivity varies with stand development stage, stand density and site conditions (Forrester, 2014). A less known effect of mixing, which is important to consider in the context of carbon sequestration, is its effect on wood quality (Pretzsch & Rais, 2016), which can have a significant influence on the lifespan of offsite carbon stocks.…”

Section: Species Compositionsupporting

confidence: 58%

Forest management and carbon sequestration in the Mediterranean region: A review

et al. 2017

View full text Add to dashboard Cite

Aim of study: TTo review and acknowledge the value of carbon sequestration by forest management in the Mediterranean area. Material and methods:We review the main effects of forest management by comparing the effects of silvicultural systems (even-aged vs. uneven-aged stands, coppice systems, agroforestry systems), silvicultural options (thinning, rotation period, species composition), afforestation, harvesting, fire impact or effects of shrub layer on carbon sequestration in the Mediterranean area.Main results: We illustrate as forest management can clearly improve forest carbon sequestration amounts. We conclude that forest management is an effective way to maintain and enhance high carbon sequestration rates in order to cope with climate change and provision of ecosystem services. We also think that although much effort has been put into this topic research, there are still certain gaps that must be dealt with to increase our scientific knowledge and in turn transfer this knowledge to forest practitioners in order to achieve sustainable management aimed at mitigating climate change.Research highlights: It is important to underline the importance of forests in the carbon cycle as this role can be enhanced by forest managers through sustainable forest management. The effects of different management options or disturbances can be critical as regards mitigating climate change. Understanding the effects of forest management is even more important in the Mediterranean area, given that the current high climatic variability together with historical human exploitation and disturbance events make this area more vulnerable to the effects of climate change.Additional keywords: global carbon cycle; forest sink; forest mitigation strategies; carbon sequestration potential; climate change mitigation; Mediterranean forests.

show abstract

Section: Species Compositionsupporting

confidence: 58%

Forest management and carbon sequestration in the Mediterranean region: A review

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In studies in Pinus pinaster stands, several authors [129,[134][135][136] stress that in unburnt stands the aboveground biomass, and thus the carbon stock, is considerably higher than in those that have burnt one or more times. On the contrary, in the latter the most important carbon stocks seem to be the soil organic carbon [134,137,138].…”

Section: Soilmentioning

confidence: 99%

The Fire in the Mediterranean Region: A Case Study of Forest Fires in Portugal

Gonçalves¹,

Sousa²

2017

Mediterranean Identities - Environment, Society, Culture

View full text Add to dashboard Cite

Forest fires are a common disturbance in many forest systems in the world and in particular in the Mediterranean region. Their origins can be either natural or anthropogenic. The effects in regard to the time trends, vegetation, and soil will be reflected in the species distribution, forest composition, and soil potential productivity. In general, it can be said that the larger the fire and the shorter the time between two consecutive occurrences, the higher the probability to originate shifts in vegetation and soil degradation. In the Mediterranean region, the number of fire ignitions does not reflect the burnt area due to the occurrence of very large fires. The latter occur in a very small proportion of the number of ignitions, but result in very large burnt areas. Also there seems to be an increasing trend toward larger fires in the Mediterranean region due mainly to climatic and land use changes. This case study highlights the importance of vegetation regrowth a short time after the fire to maintain both forest systems and soil conservation.

show abstract

“…The system of allometric equations was based on data from 30 felled trees, collected in the county of Boticas in Tâmega's Valley. The density of the sampled stands was 1062 trees ha -1 with a mean age of 35 years (Lopes, 2005;Nunes et al, 2013). Stand volumes with bark (V, m 3 ha -1 ) were calculated as the sum of the volumes of the individual trees per plot and expanded for the hectare.…”

Section: Data Collection and Stands Characteristicsmentioning

confidence: 99%

Biomass conversion and expansion factors are afected by thinning

Enes

Fonseca

2014

For. syst.

View full text Add to dashboard Cite

Aim of the study: The objective of this paper is to investigate the use of Biomass Conversion and Expansion Factors (BCEFs) in maritime pine (Pinus pinaster Ait.) stands subjected to thinning.Area of the study: The study area refers to different ecosystems of maritime pine stands in Northern Portugal. Material and methods:The study is supported by time data series and cross sectional data collected in permanent plots established in the North of Portugal. An assessment of BCEF values for the aboveground compartments and for total was completed for each studied stand. Identification of key variables affecting the value of the BCEFs in time and with thinning was conducted using correlation analysis. Predictive models for estimation of the BCEFs values in time and after thinning were developed using nonlinear regression analysis.Research highlights: For periods of undisturbed growth, the results show an allometric relationship between the BCEFs, the dominant height and the mean diameter. Management practices such as thinning also influence the factors. Estimates of the ratio change before and after thinning depend on thinning severity and thinning type. The developed models allow estimating the biomass of the stands, for the aboveground compartments and for total, based on information of stand characteristics and of thinning descriptors. These estimates can be used to assess the forest dry wood stocks to be used for pulp, bioenergy or other purposes, as well as the biomass quantification to support the evaluation of the net primary productivity.

show abstract

Aboveground biomass and net primary production of pine, oak and mixed pine–oak forests on the Vila Real district, Portugal

Cited by 29 publications

References 42 publications

Forest management and carbon sequestration in the Mediterranean region: A review

Forest management and carbon sequestration in the Mediterranean region: A review

The Fire in the Mediterranean Region: A Case Study of Forest Fires in Portugal

Biomass conversion and expansion factors are afected by thinning

Contact Info

Product

Resources

About