Results 31 to 40 of about 213,964 (205)

Shrub growth and expansion in the Arctic tundra: an assessment of controlling factors using an evidence-based approach

open access: yesEnvironmental Research Letters, 2017
Woody shrubs have increased in biomass and expanded into new areas throughout the Pan-Arctic tundra biome in recent decades, which has been linked to a biome-wide observed increase in productivity.
Andrew C Martin   +4 more
doaj   +1 more source

Constraints on shrub cover and shrub–shrub competition in a U.S. southwest desert [PDF]

open access: yesEcosphere, 2019
AbstractThe cover of woody perennial plants (trees and shrubs) in arid ecosystems is at least partially constrained by water availability. However, the extent to which maximum canopy cover is limited by rainfall and the degree to which soil water holding capacity and topography impacts maximum shrub cover are not well understood.
Wenjie Ji   +11 more
openaire   +1 more source

Physiological drought responses improve predictions of live fuel moisture dynamics in a Mediterranean forest. [PDF]

open access: yes, 2018
The moisture content of live fuels is an important determinant of forest flammability. Current approaches for modelling live fuel moisture content typically focus on the use of drought indices.
Arteaga López, Carles   +4 more
core   +2 more sources

Implications of spatial distributions of snow mass and melt rate for snow-cover depletion: observations in a subarctic mountain catchment [PDF]

open access: yes, 2004
Spatial statistics of snow water equivalent (SWE) and melt rate were measured using spatially distributed, sequential ground surveys of depth and density in forested, shrub and alpine tundra environments over several seasons within a 185 km(2) mountain ...
Essery, R, Pomeroy, J, Toth, B
core   +1 more source

Remote Sensing-Based Monitoring of Postfire Recovery of Persistent Shrubs: The Case of Juniperus communis in Sierra Nevada (Spain)

open access: yesFire, 2022
Wildfires affect the structure, functioning, and composition of ecosystems. Long-term monitoring of the occurrence, abundance, and growth of plant species is key to assessing the responses of the dynamics of plant populations with regard to environmental
Javier Blanco-Sacristán   +5 more
doaj   +1 more source

Shrub-depth: Capturing Height of Dense Graphs

open access: yes, 2019
The recent increase of interest in the graph invariant called tree-depth and in its applications in algorithms and logic on graphs led to a natural question: is there an analogously useful "depth" notion also for dense graphs (say; one which is stable ...
de Mendez, Patrice Ossona   +4 more
core   +1 more source

Functional traits of expanding, thicket-forming shrubs: contrasting strategies between exotic and native species [PDF]

open access: yes, 2017
Woody expansion has been documented for decades in many different systems globally, often yielding vast changes in ecosystem functioning. While causes and consequences of woody expansion have been well documented, few studies have addressed plant ...
Shiflett, Sheri A.   +2 more
core   +2 more sources

Magnolia mayae (Magnoliaceae), a new species from Chiapas, Mexico

open access: yesBotan‪ical Sciences, 2012
A new species of Magnolia from Chiapas, Mexico is described and illustrated. A table of morphological characters contrasting species of Magnolia Sect. Magnolia in Chiapas is provided. Magnolia mayae is similar to M.
J.Antonio Vázquez-García   +4 more
doaj   +1 more source

Fire Behaviour Observation in Shrublands in Nova Scotia, Canada and Assessment of Aids to Operational Fire Behaviour Prediction

open access: yesFire, 2020
Parks Canada, in collaboration with Nova Scotia Lands and Forests and Natural Resources Canada, documented shrub fire behaviour in multiple plots burned over two periods: a spring period in June 2014 and a summer period in July 2017.
Anne-Claude Pepin, Mike Wotton
doaj   +1 more source

Effects of different cutting heights on coppice response of forage shrubs in Ghana

open access: yesTurkish Journal of Forestry, 2021
This study aimed to determine the effect of cutting intensity on the recovery rate, growth, and biomass production of selected savanna forage shrub species.
Oppong Samuel Kıngsley   +2 more
doaj   +1 more source

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