Results 61 to 70 of about 54,771 (221)
Modelled sensitivity of the snow regime to topography, shrub fraction and shrub height [PDF]
Hydrology and Earth System Sciences, 2014 Abstract. Recent studies show that shrubs are colonizing higher latitudes and altitudes in the Arctic. Shrubs affect the wind transport, accumulation and melt of snow, but there have been few sensitivity studies of how shrub expansion might affect snowmelt rates and timing.
C. B. Ménard, R. Essery, J. Pomeroy
openaire +3 more sources
Critical properties of bipartite permutation graphs [PDF]
arXiv, 2020 The class of bipartite permutation graphs enjoys many nice and important properties. In particular, this class is critically important in the study of clique- and rank-width of graphs, because it is one of the minimal hereditary classes of graphs of unbounded clique- and rank-width.
arxiv
Hydrological Processes, 2006 AbstractObservations of land surface and snowpack energetics and mass fluxes were made over arctic shrub tundra of varying canopy height and density using radiometers, eddy covariance flux measurements, and snow mass changes from snow surveys of depth and density.
Pomeroy, J.W. +8 more
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Journal of Animal Science and Technology, 2020 Proliferation of shrubs at the expense of native forage in pastures has been associated with large changes in dry-matter intake and dietary components for grazing ruminants.
Chuntao Yang +3 more
doaj +1 more source
Pruning Landscape Trees and Shrubs
EDIS, 2019 The objective of this document is to present pruning techniques for Florida trees, shrubs and palms. The need for pruning, timing, types of pruning, tree pruning, shrub pruning and tools are discussed separately. Specific examples will support the pruning concepts.
Gilman, Edward F. +1 more
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Reproductive system and interaction with fauna in a Mediterranean Pyrophite shrub [PDF]
The ULEX model, in its present state, involves the study of the biomass and the population of the shrub Ulex parviflorus Pourret, but while being a dynamic model, it is static in the sense that it does not imply the appearance of new specimens of this plant.
arxiv +1 more source
Stochastic Desertification [PDF]
, 2013 The process of desertification is usually modeled as a first order transition, where a change of an external parameter (e.g. precipitation) leads to a catastrophic bifurcation followed by an ecological regime shift. However, vegetation elements like shrubs and trees undergo a stochastic birth-death process with an absorbing state; such a process ...
arxiv +1 more source
Environmental Research Letters, 2016 Shrub expansion in tundra ecosystems may act as a positive feedback to climate warming, the strength of which depends on its spatial extent. Recent studies have shown that shrub expansion is more likely to occur in areas with high soil moisture and ...
Salvatore R Curasi +2 more
doaj +1 more source
Shrub Reestablishment in the Mountain Shrub Zone [PDF]
Journal American Society of Mining and Reclamation, 1987 W. Berg +4 more
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Nature Geoscience, 2007 Shrub encroachment into the Arctic tundra could cause early snowmelts and warmer springtime temperatures.
openaire +2 more sources