A simple concept for estimating deadwood carbon in forests

Neumann, Mathias; Echeverría, Sebastián; Hasenauer, Hubert

doi:10.1080/17583004.2023.2197762

Cited by 4 publications

(1 citation statement)

References 62 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This component is primarily quantified as part of NFI assessments (Russell et al 2015). In response to the call for improvements in carbon accounting methodology, there has been extensive research conducted on the basic density of deadwood, as well as the release of CO 2 through the decomposition of wood (Covey et al 2016;Hietala et al 2015;Köster et al 2015;Neumann et al 2023;Nilsson et al 2002;Prescott et al 2017;Stakėnas et al 2020). In contrast, the study of internal decay in living trees has received considerably less attention in this context.…”

Section: Introductionmentioning

confidence: 99%

Effect of stem rot on wood basic density, carbon, and nitrogen content of living deciduous trees in hemiboreal forests

Liepiņš,

Jaunslaviete,

Liepiņš

et al. 2023

Silva Fenn

View full text Add to dashboard Cite

While numerous studies have focused on analyzing various aspects of the carbon (C) budget in forests, there appears to be a lack of comprehensive assessments specifically addressing the impact of stem rot on the C budget of broadleaf tree species, especially in old-growth forests where stem rot is prevalent. One of the main challenges in accurately quantifying C losses caused by stem rot is the lack of precise data on the basic density and C content of decayed wood, which are crucial for converting decayed wood volume into biomass and C stocks. Using linear mixed-effects models, we examine the variability of wood basic density, C content, and nitrogen (N) content. Discolored and decomposed wood was collected from the stems of 136 living deciduous trees common in hemiboreal forests in Latvia. Our research indicates a noticeable reduction in the wood basic density, coupled with an increase in the N content within the stem wood throughout the decomposition process in birch (Betula spp.), European aspen (Populus tremula L.), grey alder (Alnus incana (L.) Moench), and common alder (Alnus glutinosa (L.) Gaertn.). While aspen wood showed a decreasing trend in C content as decay progressed, a pairwise comparison test revealed no significant differences in C content between discolored and decomposed wood for the studied species, unlike the findings for basic density and N content. This study emphasizes the need to account for stem rot in old-growth forest carbon budgets, especially in broadleaf species, and calls for more research on stem rot-induced carbon losses.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of stem rot on wood basic density, carbon, and nitrogen content of living deciduous trees in hemiboreal forests

Liepiņš,

Jaunslaviete,

Liepiņš

et al. 2023

Silva Fenn

View full text Add to dashboard Cite

show abstract

Drivers of biomass stocks and productivity of tropical secondary forests

Matsuo,

Poorter,

van der Sande

et al. 2024

Ecology

View full text Add to dashboard Cite

Young tropical secondary forests play an important role in the local and global carbon cycles because of their large area and rapid biomass accumulation rates. This study examines how environmental conditions and forest attributes shape biomass compartments and the productivity of young tropical secondary forests. We compared 36 young secondary forest stands that differed in the time since agricultural land abandonment (2.3–3.6 years) from dry and wet regions in Ghana. We quantified biomass stocks in living and dead stems, roots, and soil, and aboveground biomass and litter productivity. We used structural equation models to evaluate how macroclimate, soil nutrients (N, P), and forest attributes (structure, diversity, and functional composition) affect ecosystem functioning. After three years of succession, tropical wet forests stored on average 115 t biomass ha−1 (the sum of aboveground living and dead biomass, belowground fine root biomass, and soil organic matter), and dry forests stored 99 t ha−1. These values represent 31% (in the wet forest) and 39% (in the dry forest) of the biomass compared with neighboring old‐growth forests. The majority of forest ecosystem biomass was stored in the soil (70%) and aboveground living vegetation (25%). Macroclimate strongly shaped forest attributes, which in turn determined biomass stocks and productivity. Soil phosphorus strongly increased litter production and soil organic matter, confirming that it is a limiting element in tropical ecosystems. Tree density and species diversity increased forest biomass stocks, suggesting crown packing and complementary resource use enhance forest functioning. A more conservative trait composition (high wood density) increased biomass stocks but reduced productivity, indicating that quantity, identity, and quality of species affect ecosystem functioning.

show abstract