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Over large areas of Europe, coniferous monocultures are being transformed into mixed forests by the re-introduction of broadleaf tree species belonging to the potential natural vegetation. One important species of interest in this changing forest policy is European beech (Fagus sylvatica). However, at present, this forest management directive has ignored potential adverse effects of global climate...
Nutrient- and water economy-related traits in plants have significant implications for growth and fitness. We explored, examined, and compared nutrient concentrations, use efficiencies, assimilation, and informative isotopic elements in a seedling provenance experiment, and in seedling and mature tree controlled-cross hybrid experiments of red spruce (RS) (Picea rubens Sarg.) and black spruce (BS)...
Tree growth is a fundamental indicator for conservation plans of Amazonian floodplain forests. In this study we use dendrochronology to analyze wood growth patterns of Tabebuia barbata and Vatairea guianensis, two tree species occurring in nutrient-rich white-water (várzea, Mamirauá Sustainable Development Reserve, MSDR) and nutrient-poor black-water (igapó, Amanã Sustainable Development Reserve,...
We conducted dendroecological analyses in 80-year-long tree ring chronologies to detect neighborhood effects (competition intensity, species identity) on the δ13C signature of tree rings and radial stem increment of Fagus sylvatica trees growing either in monospecific or mixed patches of a temperate forest. We hypothesized that tree ring δ13C is a more sensitive indicator of neighborhood effects and...
Knowledge of root profiles is essential for measuring and predicting ecosystem dynamics and function. In the present study, the effects of management practices on root (0.5 ≤ ø < 20 mm) spatial distribution were examined in a 40-year-old coppice stand (CpS 1968) and other two stands converted from coppice to thinned high forest in 1994 (CvS 1994) and 2004 (CvS 2004), respectively. The use of a...
Key messageIn the Chocó biogeographic region, forest thinning decreases competition and increases growth evenness among individuals ofEuterpe oleracea, which could be important to the development of sustainable species management. Abstract The main goal of this study was to characterize and compare the effect of disturbance and competitive thinning in structuring the size–abundance relationship,...
Key message Thinning resulted in evapotranspiration decrease and caused the relative contributions of each component to evapotranspiration to become very close. Abstract To increase the understanding of forest management to control water cycles, we examined the effect of 50% strip thinning on evapotranspiration (ET) and its partitioning into canopy interception (Ei), tree transpiration (Et), and...
Key message Selective logging affects climate sensitivity ofLarix sibiricain the Mongolian forest–steppe mediated by changes in age and stand structure. Abstract Climate warming increasingly limits the productivity of boreal forests via increased drought stress, especially at the southern fringe of the biome. The southernmost boreal forests are exposed to more intensive human disturbance than most...
Key message Growth rings are investigated in trees harvested in the second cutting cycle in southern Amazonia and have important implications for dendrochronological studies and for forest management. Abstract In the southern Brazilian Amazon, upland moist forests have been managed based on a polycyclic system, which cutting cycle (CC) varies from 25 to 35 years, and the minimum logging diameter...
Key message Canopy and stem phenology of Qinghai spruce, central Qilian Mountains, respond to different environmental factors depending on season and elevation. Abstract To understand vegetation species response to climate change, much research has been devoted to changes in forest phenology. Results of such studies are not only of scientific interest; they are potentially of great use in forest...
Key message Moderate shading is optimal for the growth of Torreya grandis seedlings during drought. Abstract Light and water are two important environmental factors affecting tree seedling traits and regulating seedling survival and growth, but the effects of light on seedlings under drought remain poorly understood. The purpose of the present study was to examine the interactive effects of light...
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