Synergistic use of very high-frequency radar and discrete-return lidar for estimating biomass in temperate hardwood and mixed forests

• Introduction   

Accurate estimation of aboveground biomass is essential to better understand the carbon cycle in forest ecosystems.     

Influence of tree species on carbon and nitrogen transformation patterns in forest floor profiles

• Background   

Among forest management practices, forest tree species substitution influences biogeochemical cycles and soil interactions rapidly (decades) and significantly.     

Characterisation and categorisation of the diversity in viscoelastic vibrational properties between 98 wood types

Context   

Increased knowledge on diversity in wood properties would have implications both for fundamental research and for promoting a diversification of uses as material.     

Determining the rate of change in a mixed deciduous forest monitored for 50 years

Introduction   

Trees in two compartments of the mixed deciduous forest Draved Forest have been monitored regularly for 50 years.     

The relative importance of dispersal limitation and habitat preference in shaping spatial distribution of saplings in a tropical moist forest: a case study along a combination of hydromorphic and canopy disturbance gradients

• Introduction   

Various processes contribute to shaping the local assemblage of species in hyperdiverse tropical forest. The relative contribution of environmental factors and dispersal limitation in determining the spatial distribution of saplings at local scale is unclear.     

Present and forecasted xeric climatic limits of beech and sessile oak distribution at low altitudes in Central Europe

• Introduction   

Xeric (trailing) forest range limits are particularly vulnerable to impacts of predicted climate change. Regional modelling studies contribute to the identification of potential local climatic threats and may support appropriate management strategies.     

Growth and frost hardening of European aspen and backcross hybrid aspen as influenced by water and nitrogen

• Introduction  

The interactive effects of water and nitrogen (N) on frost hardiness are not well known in broad-leaved trees. Furthermore, new environmental conditions may favour naturally generated hybrids between native and introduced tree species over native species.     

Genetic variation of chemical and mechanical traits of maritime pine (<Emphasis Type="Italic">Pinus pinaster</Emphasis> Aiton). Correlations with wood density components

• Background   

Genetic selection for one trait can have an impact on other important traits for final use; thus, it is important to assess the correlation between traits.     

Impacts of tree canopy structure on wind flows and fire propagation simulated with FIRETEC

Introduction   

Forest fuel management in the context of fire prevention generally induces heterogeneous spatial patterns of vegetation. However, the impact of the canopy structure on both wind flows and fire behavior is not well understood.     

Effects of rotation length on the grade recovery and wood properties of Sitka spruce structural timber grown in Great Britain

Context   

Rotation length is known to affect timber quality in many plantation species, but its effect on the properties of Sitka spruce (Picea sitchensis) structural timber has not been quantified.     

Automatic detection of sound knots and loose knots on sugi using gray level co-occurrence matrix parameters

• Context  

Knowledge of the occurrence of sound and loose knots on the surface of sawn sugi (Cryptomeria japonica L.f.) is important for its grading and application.     

Freezing-induced loss of carbon uptake in a subtropical coniferous plantation in southern China

• Context  

In January 2008, a freeze in southern China, unprecedented in 50 years, severely affected local subtropical coniferous plantations.     

Changes in humus forms and soil N pathways along a 130-year-old pure beech forest chronosequence

Introduction   

We investigated changes in humus morphology and soil potential net N mineralization pathways along a pure beech even-aged forest chronosequence, composed of four stages (15, 65, 95, and 130 years old) on Luvisol.     

Effects of foliar nutrients and environmental factors on site productivity in <Emphasis Type="Italic">Pinus pinaster</Emphasis> Ait. stands in Asturias (NW Spain)

• Background   

The effects of foliar nutrients and environmental variables on site productivity in Maritime pine (Pinus pinaster Ait.) stands in Asturias (NW Spain) were studied.     

Artificial regeneration with <Emphasis Type="BoldItalic">Quercus ilex</Emphasis> L. and <Emphasis Type="BoldItalic">Quercus suber</Emphasis> L. by direct seeding and planting in southern Spain

 Introduction   

The limited ability of Quercus species to regenerate naturally in Mediterranean forests has led to the development of various artificial regeneration methods; however, there is no general consensus as to what specific method is the best one for this purpose.     

Clonal variation in heartwood norlignans of <Emphasis Type="Italic">Cryptomeria japonica</Emphasis>: evidence for independent control of agatharesinol and sequirin C biosynthesis

• Introduction   

In Cryptomeria japonica, heartwood properties are considered to be affected by specific extractives. It remains unclear whether traits of specific heartwood compounds are under genetic control.     

Drought induces opposite changes in the concentration of non-structural carbohydrates of two evergreen <Emphasis Type="Italic">Nothofagus</Emphasis> species of differential drought resistance

• Introduction   

One current explanation for worldwide drought-induced tree mortality states that reduced photosynthesis and continued respiration lead to carbon depletion and eventually to carbon starvation.     

Estimation of tree biomass,carbon pool and net primary production of an old-growth <Emphasis Type="Italic">Pinus kesiya</Emphasis> Royle ex. Gordon forest in north-eastern India

• Background  

The data on carbon pool and biomass distribution pattern of old-growth Pinus kesiya Royle ex. Gordon forests are not available.     

Changes within collembolan communities in windthrown European montane spruce forests 2 years after disturbance by fire

• Context   

In July 2005, a wildfire occurred in windthrown spruce forests in High Tatra Mountains and damaged roughly 229 ha of previously clear-cut area.     

Climatic controls of a keystone understory species, <Emphasis Type="Italic">Sasamorpha borealis</Emphasis>, and an impact assessment of climate change in Japan

Introduction   

The aims of this study were to identify the climatic conditions controlling the distribution of Sasamorpha borealis and to assess the impact of climate change on the species in Japan.