Results 21 to 30 of about 42,399 (263)

Plant, fungal, bacterial, and nitrogen interactions in the litter layer of a native Patagonian forest [PDF]

open access: yesPeerJ, 2018
Plant–microbial interactions in the litter layer represent one of the most relevant interactions for biogeochemical cycling as litter decomposition is a key first step in carbon and nitrogen turnover.
Lucía Vivanco   +2 more
doaj   +2 more sources

Tree litter functional diversity and nitrogen concentration enhance litter decomposition via changes in earthworm communities

open access: yesEcology and Evolution, 2020
Biodiversity is a major driver of numerous ecosystem functions. However, consequences of changes in forest biodiversity remain difficult to predict because of limited knowledge about how tree diversity influences ecosystem functions. Litter decomposition
Guillaume Patoine   +7 more
doaj   +1 more source

Computing an Optimal Orientation of a Balanced Decomposition Tree for Linear Arrangement Problems

open access: yesJournal of Graph Algorithms and Applications, 2001
Divide-and-conquer approximation algorithms for vertex ordering problems partition the vertex set of graphs, compute recursively an ordering of each part, and ``glue'' the orderings of the parts together.
Reuven Bar-Yehuda   +3 more
doaj   +1 more source

On Low Tree-Depth Decompositions [PDF]

open access: yesGraphs and Combinatorics, 2015
The theory of sparse structures usually uses tree like structures as building blocks. In the context of sparse/dense dichotomy this role is played by graphs with bounded tree depth. In this paper we survey results related to this concept and particularly explain how these graphs are used to decompose and construct more complex graphs and structures. In
Jaroslav Nesetril   +1 more
openaire   +3 more sources

Characteristics of Decomposition Powers of L-Band Multi-Polarimetric SAR in Assessing Tree Growth of Industrial Plantation Forests in the Tropics

open access: yesRemote Sensing, 2012
A decomposition scheme was applied to ALOS/PALSAR data obtained from a fast-growing tree plantation in Sumatra, Indonesia to extract tree stem information and then estimate the forest stand volume.
Yoshio Yamaguchi   +6 more
doaj   +1 more source

A Decomposition Algorithm for Noncrossing Trees [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2014
Based on the classic bijective algorithm for trees due to Chen, we present a decomposition algorithm for noncrossing trees. This leads to a combinatorial interpretation of a formula on noncrossing trees of size $n$ with $k$ descents. We also derive the formula for noncrossing trees of size $n$ with $k$ descents and $i$ leaves, which is a refinement of ...
Lun Lv, Sabrina X. M. Pang
openaire   +2 more sources

On the decomposition dimension of trees

open access: yesDiscrete Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hikoe Enomoto, Tomoki Nakamigawa
openaire   +2 more sources

Decomposition of Triply Rooted Trees [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2013
In this paper, we give a decomposition of triply rooted trees into three doubly rooted trees. This leads to a combinatorial interpretation of an identity conjectured by Lacasse in the study of the PAC-Bayesian machine learning theory, and proved by Younsi by using the Hurwitz identity on multivariate Abel polynomials.
William Y. C. Chen   +2 more
openaire   +3 more sources

Direct vs. Microclimate-Driven Effects of Tree Species Diversity on Litter Decomposition in Young Subtropical Forest Stands.

open access: yesPLoS ONE, 2016
Effects of tree species diversity on decomposition can operate via a multitude of mechanism, including alterations of microclimate by the forest canopy.
Katrin N Seidelmann   +2 more
doaj   +1 more source

Tree decomposition by eigenvectors

open access: yesLinear Algebra and its Applications, 2009
25 ...
Sander, T., Sander, J.W.
openaire   +2 more sources

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