Results 11 to 20 of about 36,663 (265)

Allometric equations, stem density and biomass expansion factors for Cryptomeria japonica in Mount Halla, Jeju Island, Korea

Journal of Ecology and Environment, 2014
This study was conducted to develop allometric equations and to determine the stem density and biomass expansion factor (BEF) for the estimation of the aboveground and belowground biomass of Cryptomeria japonica in Jeju Island, Korea.
Sung Cheol Jung, Roscinto Ian C. Lumbres, Hyun Kyu Won, Yeon Ok Seo   +3 more
doaj   +1 more source

Advanced Aboveground Spatial Analysis as Proxy for the Competitive Environment Affecting Sapling Development

Frontiers in Plant Science, 2019
Tree saplings are exposed to a competitive growth environment in which resources are limited and the ability to adapt determines general vitality and specific growth performance.
Peter Annighöfer, Dominik Seidel, Andreas Mölder, Christian Ammer   +3 more
doaj   +1 more source

Assessing Understory Complexity in Beech-dominated Forests (Fagus sylvatica L.) in Central Europe—From Managed to Primary Forests

Sensors, 2019
Understory vegetation influences several ecosystem services and functions of European beech (Fagus sylvatica L.) forests. Despite this knowledge on the importance of understory vegetation, it is still difficult to measure its three-dimensional ...
Katharina Willim, Melissa Stiers, Peter Annighöfer, Christian Ammer, Martin Ehbrecht, Myroslav Kabal, Jonas Stillhard, Dominik Seidel   +7 more
doaj   +1 more source

Variations in genetic diversity in cultivated Pistacia chinensis

Frontiers in Plant Science, 2022
Identification of the evolution history and genetic diversity of a species is important in the utilization of novel genetic variation in this species, as well as for its conservation.
Biao Han, Ming-Jia Zhang, Yang Xian, Hui Xu, Cheng-Cheng Cui, Dan Liu, Lei Wang, De-Zhu Li, Wen-Qing Li, Xiao-Man Xie   +9 more
doaj   +1 more source

How a measure of tree structural complexity relates to architectural benefit‐to‐cost ratio, light availability, and growth of trees

Ecology and Evolution, 2019
Aboveground tree architecture is neither fully deterministic nor random. It is likely the result of mechanisms that balance static requirements and light‐capturing efficiency.
Dominik Seidel, Peter Annighöfer, Melissa Stiers, Clara Delphine Zemp, Katharina Burkardt, Martin Ehbrecht, Katharina Willim, Holger Kreft, Dirk Hölscher, Christian Ammer   +9 more
doaj   +1 more source

Long-term effects of gap creation and liming on understory vegetation with a focus on tree regeneration in a European beech (Fagus sylvatica L.) forest

Annals of Forest Research, 2014
The long-term effects of gap creation and liming on tree regeneration and understory competition were examined in a mature European beech (Fagus sylvatica) stand on a nutrient-poor site.
N. Lin, N. Bartsch, T. Vor
doaj   +1 more source

Global patterns and climatic controls of forest structural complexity

Nature Communications, 2021
Forest structure depends both on extrinsic factors such as climate and on intrinsic properties such as community composition and diversity. Here, the authors use a dataset of stand structural complexity based on LiDAR measurements to build a global map ...
Martin Ehbrecht, Dominik Seidel, Peter Annighöfer, Holger Kreft, Michael Köhler, Delphine Clara Zemp, Klaus Puettmann, Reuben Nilus, Fred Babweteera, Katharina Willim, Melissa Stiers, Daniel Soto, Hans Juergen Boehmer, Nicholas Fisichelli, Michael Burnett, Glenn Juday, Scott L. Stephens, Christian Ammer   +17 more
doaj   +1 more source

Relationship between tree growth and physical dimensions of Fagus sylvatica crowns assessed from terrestrial laser scanning

iForest - Biogeosciences and Forestry, 2015
Measurements of physical tree crown dimensions were of subjective character in the past, even though they can be considered important for the management of many silvicultural operations, such as timing of thinning operations. In our study we investigated
Seidel D, Schall P, Gille M, Ammer C
doaj   +1 more source

Growth, morphology, and biomass allocation of recently planted seedlings of seven European tree species along a light gradient

iForest - Biogeosciences and Forestry, 2020
Light is one of the most critical factors controlling tree survival and growth. Limited light availability induces phenotypic plasticity, thus enabling plants to adapt to suboptimal conditions.
Bebre I, Annighöfer P, Ammer C, Seidel D   +3 more
doaj   +1 more source

PypeTree: A Tool for Reconstructing Tree Perennial Tissues from Point Clouds

Sensors, 2014
The reconstruction of trees from point clouds that were acquired with terrestrial LiDAR scanning (TLS) may become a significant breakthrough in the study and modelling of tree development.
Sylvain Delagrange, Christian Jauvin, Pascal Rochon   +2 more
doaj   +1 more source