Results 71 to 80 of about 926,630 (201)

Seedling Growth and Survival of Western Red Cedar (Thuja Plicata), Six Years Later [PDF]

open access: yes, 2012
In 2005, western red cedar (Thuja plicata) seedlings were planted in Forest Park in Portland, Oregon to ascertain whether mammalian predation had a role in low seedling recruitment in the park.
Colahan, Conor F., Weinbender, Eric
core   +1 more source

Height-diameter allometry of tropical forest trees [PDF]

open access: yes, 2011
Tropical tree height-diameter (H:D) relationships may vary by forest type and region making large-scale estimates of above-ground biomass subject to bias if they ignore these differences in stem allometry.
Affum-Baffoe, K.   +23 more
core   +1 more source

The agreement distance of unrooted phylogenetic networks

open access: yes, 2020
A rearrangement operation makes a small graph-theoretical change to a phylogenetic network to transform it into another one. For unrooted phylogenetic trees and networks, popular rearrangement operations are tree bisection and reconnection (TBR) and ...
Klawitter, Jonathan
core   +1 more source

On Sibuya Trees and Forests

open access: yesJournal of the Indian Society for Probability and Statistics
We show that the Sibuya distribution and its non-critical relatives are relevant in the context of the recursive generation of both simply generated and increasing critical trees' and forests' progenies. A special class of generalized Stirling numbers are at the heart of the analysis of the induced occupancy distributions.
openaire   +2 more sources

Coupling Avicennia tree architecture to radar backscatter models for estimating mangrove forest biomass [PDF]

open access: yes, 2004
The understanding of mangrove ecosystems functioning requires techniques allowing their forest structure and forest biomass to be assessed. Among them, radar measurements have demonstrated powerful capabilities that, however, must be validated ...
Boudon, Frédéric   +3 more
core  

Reference vegetation for restoration? Three vegetation maps compared across 76 nature reserves in Uganda and Kenya

open access: yesEcosphere
Forest and landscape restoration are increasingly popular nature‐based solutions to mitigate climate change and safeguard biodiversity. Restoration planning and monitoring implies that a reference ecosystem has been defined to which the restored site can
Jens‐Peter Barnekow Lillesø   +7 more
doaj   +1 more source

ON THE MYCORHIZAS OF FOREST TREES

open access: yesAmerican Journal of Botany, 1914
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

Transcriptome study on the effect of leaf-fruit ratio on molecular regulation mechanism of Camellia oleifera

open access: yesBMC Plant Biology
Background Camellia oleifera Abel. is one of the four major woody oil species whose seeds produce high-grade edible oil. In recent years, the planting area of Camellia oleifera is increasing in China.
Xiaoyan Zhang   +6 more
doaj   +1 more source

Using airborne lidar to discern age classes of cottonwood trees in a riparian area [PDF]

open access: yes, 2006
Airborne lidar (light detecting and ranging) is a useful tool for probing the structure of forest canopies. Such information is not readily available from other remote sensing methods and is essential for modern forest inventories.
Farid, A, Goodrich, DC, Sorooshian, S
core   +1 more source

Evaluating Growth and Stability of Nine Poplar Clones for Riparian Afforestation

open access: yesPlants
Poplar (Populus) clones are widely used for riparian afforestation owing to their fast growth and ecological benefits. However, selecting suitable clones for site-specific conditions remains a key challenge.
Jihyeon Jeon   +7 more
doaj   +1 more source

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