Soil water availability effects on the distribution of 20 tree species in western North America

Mathys, Amanda; Coops, Nicholas C.; Waring, Richard H.

doi:10.1016/j.foreco.2013.11.005

Cited by 48 publications

(39 citation statements)

References 40 publications

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“…This variation is a reflection in part of local differences associated with mountainous topography and soils. For the most part, predicted soil properties seem reasonable based on extensive sensitivity analyses by Mathys et al [25] and are, in any case, more reliable than can be obtained from conventional sources, at least at these spatial scales, as documented by Coops et al [24]. There may be an exception in the Maritime West Coast Forest Zone, where an increase in soil drought is indicated in some areas in Figure 3c.…”

Section: General Pointssupporting

confidence: 56%

“…We performed sensitivity tests, whereby baseline values for the available water storage capacity (ASWC) of soils defined by Coops et al [24] were varied by ±50% to assess the effect on modeled predictions of the current distribution of 20 western tree species. In three cases, altering ASWC values shifted the predicted ranges of species by >20% from their known distributions on surveyed field plots [25].…”

Section: Introductionmentioning

confidence: 95%

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Process-Based Modeling to Assess the Effects of Recent Climatic Variation on Site Productivity and Forest Function across Western North America

Waring

Coops

Mathys

et al. 2014

Forests

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A process-based forest growth model, 3-PG (Physiological Principles Predicting Growth), parameterized with values of soil properties constrained by satellite-derived estimates of maximum leaf area index (LAI max ), was run for Douglas-fir (Pseudotsuga menziesii) to contrast the extent to which site growth potential might vary across western North America between a cool, wet period and a more recent, generally warmer and drier one (2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009). LAI max represents a surrogate for overall site growth potential, as demonstrated from a strong correlation between the two variables, with the latter based on the culmination of mean annual increment estimates made at 3356 ground-based U.S. Forest Service survey plots across the states of Oregon and Washington. Results indicate that since 2000, predicted LAI max has decreased more than 20% in portions of the Southwest USA and for much of the forested area in western Alberta. Similar percentage increases in LAI max were predicted for parts of British Columbia, Idaho and Montana. The modeling analysis included an assessment of changes in seasonal constraints on gross primary production (GPP). A general reduction in limitations caused by spring frost occurred across the entire study area. This has led to a longer growing season, along with notable increases in summer evaporative demand and soil drought for much of the study area away from the maritime influence of the Pacific Ocean.

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Section: General Pointssupporting

confidence: 56%

Section: Introductionmentioning

confidence: 95%

Process-Based Modeling to Assess the Effects of Recent Climatic Variation on Site Productivity and Forest Function across Western North America

Waring

Coops

Mathys

et al. 2014

Forests

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“…At small scales, the water holding capacity of the soil is one of the main parameters [59][60][61]. Ability of soil water conservation and permeability seem to be limited by soil moisture, porosity and bulk density etc.…”

Section: Environmental Variation and Tree Diversitymentioning

confidence: 99%

Spatial Heterogeneity in Tree Diversity and Forest Structure of Evergreen Broadleaf Forests in Southern China along an Altitudinal Gradient

Wei¹,

Xiaoxian²

2016

Forests

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Abstract:We studied the influence of altitude on the spatial heterogeneity of tree diversity and forest structure in a subtropical evergreen broadleaf forest in southern China. Significant positive correlation was found between tree species diversity, basal area and altitude, but negative correlation between slenderness of trunks and altitude. According to topography, tree species diversity, diameter at breast height, height and basal area increased from ridges to valleys, while slenderness and stem density did not differ significantly with topography. Redundancy analysis (RDA) was employed to clarify relationships between tree species diversity and environmental factors (topography and soil water holding capacity). Topography and water conditions jointly explained 57.8% of the diversity variation. Tree species diversity was significantly correlated with altitude, slope and bulk density (Monte Carlo permutation test with 999 permutations, p < 0.05). A positive relationship existed between altitude, soil non-capillary porosity and diversity, while slope, aspect and soil water content were the opposite. Our results show that soil water holding capacity has a positive effect on maintaining species diversity. When comparing with topographic factors-the main driving forces affecting the pattern of tree species diversity-the effect of soil water holding capacity was weak.

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“…This together with reduced shoot elongation means that the shoot biomass may decrease if the incidence of frozen soils in late spring will increase in future climate. The recent studies and models have put forward more attention not only to the air temperature, but also to the soil conditions like water availability that may affect the tree growth (Boden et al, 2014;Mathys et al, 2014). It should also be good if the growth rhythm of tree species could be taken into a consideration when modelling the effects of climate change in both soil and air properties on tree growth.…”

Section: Ecological Implicationsmentioning

confidence: 99%

Vegetative buds, needles and shoot growth of Norway spruce are affected by experimentally delayed soil thawing in the field

Sutinen

Roitto

Repo

2015

Forest Ecology and Management

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Soil water availability effects on the distribution of 20 tree species in western North America

Cited by 48 publications

References 40 publications

Process-Based Modeling to Assess the Effects of Recent Climatic Variation on Site Productivity and Forest Function across Western North America

Process-Based Modeling to Assess the Effects of Recent Climatic Variation on Site Productivity and Forest Function across Western North America

Spatial Heterogeneity in Tree Diversity and Forest Structure of Evergreen Broadleaf Forests in Southern China along an Altitudinal Gradient

Vegetative buds, needles and shoot growth of Norway spruce are affected by experimentally delayed soil thawing in the field

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