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Title: Tree Mortality Decreases Water Availability and Ecosystem Resilience to Drought in Piñon-Juniper Woodlands in the Southwestern U.S.

Journal Article · · Journal of Geophysical Research. Biogeosciences
DOI:https://doi.org/10.1002/2017JG004095· OSTI ID:1417176
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [5]; ORCiD logo [2]; ORCiD logo [6]; ORCiD logo [2]
  1. Univ. of New Mexico, Albuquerque, NM (United States); Univ. of British Columbia, Vancouver, BC (Canada)
  2. Univ. of New Mexico, Albuquerque, NM (United States)
  3. Univ. of New Mexico, Albuquerque, NM (United States); Univ. of California, Berkeley, CA (United States)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  5. Univ. of Arizona, Tucson, AZ (United States)
  6. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Climate-driven tree mortality has increased globally in response to warmer temperature and more severe drought. To examine how tree mortality in semiarid biomes impacts surface water balance, we experimentally manipulated a piñon-juniper (PJ) woodland by girdling all adult piñon trees in a 4 ha area, decreasing piñon basal area by ~65%. Over 3.5 years (2009–2013), we compared water flux measurements from this girdled site with those from a nearby intact PJ woodland. Before and after girdling, the ratio of evapotranspiration (ET) to incoming precipitation was similar between the two sites. Girdling altered the partitioning of ET such that the contribution of canopy transpiration to ET decreased 9–14% over the study period, relative to the intact control, while noncanopy ET increased. We attributed the elevated noncanopy ET in the girdled site each year to winter increases in sublimation and summer increases in both soil evaporation and below-canopy transpiration. Although we expected that mortality of a canopy dominant would increase the availability of water and other resources to surviving vegetation, we observed a decrease in both soil volumetric water content and sap flow rates in the remaining trees at the girdled site, relative to the control. Furthermore, this postgirdling decrease in the performance of the remaining trees occurred during the severe 2011–2012 drought, suggesting that piñon mortality may trigger feedback mechanisms that leave PJ woodlands drier relative to undisturbed sites and potentially more vulnerable to drought.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1417176
Report Number(s):
LA-UR-17-31286; TRN: US1801005
Journal Information:
Journal of Geophysical Research. Biogeosciences, Vol. 122, Issue 12; ISSN 2169-8953
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 23 works
Citation information provided by
Web of Science

References (102)

Differential responses of production and respiration to temperature and moisture drive the carbon balance across a climatic gradient in New Mexico: CARBON BALANCE ACROSS NM ELEVATIONAL GRADIENT journal December 2010
An analysis of soil moisture dynamics using multi-year data from a network of micrometeorological observation sites journal May 2007
Forest canopy effects on snow accumulation and ablation: An integrative review of empirical results journal October 2010
Broadband, red-edge information from satellites improves early stress detection in a New Mexico conifer woodland journal December 2011
Increased evaporation following widespread tree mortality limits streamflow response journal July 2014
Soil moisture and vegetation controls on evapotranspiration in a heterogeneous Mediterranean ecosystem on Sardinia, Italy: EVAPOTRANSPIRATION IN MEDITERRANEAN ECOSYSTEM journal August 2006
Correction of flux measurements for density effects due to heat and water vapour transfer journal January 1980
Ecohydrological consequences of drought- and infestation- triggered tree die-off: insights and hypotheses journal August 2011
Influences of subsurface heterogeneity and vegetation cover on soil moisture, surface temperature and evapotranspiration at hillslope scales journal January 2011
Soil water repellency: its causes, characteristics and hydro-geomorphological significance journal August 2000
Wind Tunnel And Field Measurements Of Turbulent Flow In Forests. Part I: Uniformly Thinned Stands journal June 2000
‘Quantifying the effects of forest canopy cover on net snow accumulation at a continental, mid-latitude site’ journal June 2009
Ecohydrological controls on snowmelt partitioning in mixed-conifer sub-alpine forests journal June 2009
The impact of pine beetle infestation on snow accumulation and melt in the headwaters of the Colorado River journal June 2011
Effects of Woody Plants on Microclimate in a Semiarid Woodland: Soil Temperature and Evaporation in Canopy and Intercanopy Patches
  • Breshears, David D.; Nyhan, John W.; Heil, Christopher E.
  • International Journal of Plant Sciences, Vol. 159, Issue 6 https://doi.org/10.1086/314083
journal November 1998
Climate-Induced Tree Mortality: Earth System Consequences journal January 2010
Water uptake and hydraulic redistribution across large woody root systems to 20 m depth: Hydraulic redistribution across deep root systems journal September 2010
Water uptake and redistribution during drought in a semiarid shrub species journal January 2014
Estimating snow sublimation using natural chemical and isotopic tracers across a gradient of solar radiation: SUBLIMATION IN SUBALPINE FORESTED CATCHMENT journal December 2010
Greenhouse warming and the 21st century hydroclimate of southwestern North America journal December 2010
Spatial Distributions of Grass and Shrub Root Systems in the Shortgrass Steppe journal July 1994
Ectomycorrhizal Abundance and Community Composition Shifts with Drought: Predictions from tree Rings journal April 2004
Tree mortality from drought, insects, and their interactions in a changing climate journal June 2015
Watering the forest for the trees: an emerging priority for managing water in forest landscapes journal August 2013
Ecohydrological Implications of Woody Plant Encroachment journal February 2005
An approximate analytical model for footprint estimation of scalar fluxes in thermally stratified atmospheric flows journal June 2000
Patterns and causes of observed piñon pine mortality in the southwestern United States journal December 2014
Consequences of widespread tree mortality triggered by drought and temperature stress journal September 2012
Increasing drought under global warming in observations and models journal August 2012
Decreased streamflow in semi-arid basins following drought-induced tree die-off: A counter-intuitive and indirect climate impact on hydrology journal September 2011
Biomass distribution and productivity ofPinus edulis—Juniperus monosperma woodlands of north-central Arizona journal July 1992
Density-Dependent Ecohydrological Effects of Piñon–Juniper Woody Canopy Cover on Soil Microclimate and Potential Soil Evaporation journal January 2012
A global overview of drought and heat-induced tree mortality reveals emerging climate change risks for forests journal February 2010
Differential water resource use by herbaceous and woody plant life-forms in a shortgrass steppe community journal December 1998
Multiscale observations of snow accumulation and peak snowpack following widespread, insect-induced lodgepole pine mortality: SNOWPACK FOLLOWING INSECT-INDUCED PINE MORTALITY journal November 2012
Ecohydrological controls of soil evaporation in deciduous drylands: How the hierarchical effects of litter, patch and vegetation mosaic cover interact with phenology and season journal May 2010
When a Tree Dies in the Forest: Scaling Climate-Driven Tree Mortality to Ecosystem Water and Carbon Fluxes journal April 2016
The effect of plant water storage on water fluxes within the coupled soil-plant system journal November 2016
Hydraulic limits preceding mortality in a piñon-juniper woodland under experimental drought: Hydraulic limits in a piñon-juniper woodland journal April 2012
Hydrology of altered tropical forest journal January 2002
Recent tree die-off has little effect on streamflow in contrast to expected increases from historical studies: MUTED STREAMFLOW RESPONSES TO TREE DIE-OFF journal December 2015
Toward accounting for ecoclimate teleconnections: intra- and inter-continental consequences of altered energy balance after vegetation change journal October 2015
Recovery of ponderosa pine ecosystem carbon and water fluxes from thinning and stand-replacing fire journal July 2012
Effects of biotic disturbances on forest carbon cycling in the United States and Canada journal October 2011
Effects of vegetation on snow accumulation and ablation in a mid-latitude sub-alpine forest journal July 2008
On soil moisture-vegetation feedbacks and their possible effects on the dynamics of dryland ecosystems: SOIL MOISTURE-vegetation feedbacks journal December 2007
Precipitation thresholds and drought-induced tree die-off: insights from patterns of Pinus edulis mortality along an environmental stress gradient journal June 2013
Relationship between evapotranspiration and precipitation pulses in a semiarid rangeland estimated by moisture flux towers and MODIS vegetation indices journal August 2007
Methodology and performance of a rainfall manipulation experiment in a piñon–juniper woodland journal April 2012
A modeling approach reveals differences in evapotranspiration and its partitioning in two semiarid ecosystems in Northwest Mexico journal April 2014
Evaluation of transpiration in a Douglas-fir stand by means of sap flow measurements journal December 1987
Investigation of Monte Carlo uncertainties on Higgs boson searches using jet substructure journal October 2012
Temperature as a potent driver of regional forest drought stress and tree mortality journal September 2012
A simple method for estimating frequency response corrections for eddy covariance systems journal August 2000
Changes in snow accumulation and ablation following the Las Conchas Forest Fire, New Mexico, USA: CHANGES IN SNOW FOLLOWING FIRE journal January 2013
Differential tree mortality in response to severe drought: evidence for long-term vegetation shifts journal July 2005
Three Methods for Monitoring the Gas Exchange of Individual tree Canopies: Ventilated-Chamber, Sap-Flow and Penman-Monteith Measurements on Evergreen Oaks journal February 1994
Mountain pine beetle infestation impacts: modeling water and energy budgets at the hill-slope scale: PINE BEETLE IMPACTS ON THE WATER AND ENERGY BUDGET journal December 2011
Drought-induced shift of a forest-woodland ecotone: Rapid landscape response to climate variation journal December 1998
Changes in soil biogeochemistry following disturbance by girdling and mountain pine beetles in subalpine forests journal February 2015
The critical amplifying role of increasing atmospheric moisture demand on tree mortality and associated regional die-off journal January 2013
Prolonged experimental drought reduces plant hydraulic conductance and transpiration and increases mortality in a piñon-juniper woodland journal March 2015
Ecohydrology of water-limited environments: A scientific vision: OPINION journal June 2006
Evaluating theories of drought-induced vegetation mortality using a multimodel-experiment framework journal September 2013
Detecting mortality induced structural and functional changes in a piñon-juniper woodland using Landsat and RapidEye time series journal August 2014
Cascading impacts of bark beetle‐caused tree mortality on coupled biogeophysical and biogeochemical processes journal September 2012
Snow accumulation and ablation response to changes in forest structure and snow surface albedo after attack by mountain pine beetle: CHANGES IN SNOW ACCUMULATION AND ABLATION AFTER PINE BEETLE ATTACK journal October 2012
Hydraulic redistribution in a stand of Artemisia tridentata: evaluation of benefits to transpiration assessed with a simulation model journal January 2002
Transpiration and Hydraulic Strategies in a PiñOn–Juniper Woodland journal June 2008
Woody Biomass Estimation in a Southwestern U.S. Juniper Savanna Using LiDAR-Derived Clumped Tree Segmentation and Existing Allometries journal May 2016
Sensitivity of regional evapotranspiration partitioning to variation in woody plant cover: insights from experimental dryland tree mosaics: Sensitivity of ET partitioning to woody cover journal July 2015
Water Properties of Caliche journal November 1983
The magnitude of hydraulic redistribution by plant roots: a review and synthesis of empirical and modeling studies: Tansley review journal March 2012
Hydraulic redistribution by two semi-arid shrub species: Implications for Sahelian agro-ecosystems journal August 2012
Spatial organisation of landscapes and its function in semi-arid woodlands, Australia journal February 1995
Not all droughts are created equal: translating meteorological drought into woody plant mortality journal July 2013
Post-clearcut dynamics of carbon, water and energy exchanges in a midlatitude temperate, deciduous broadleaf forest environment journal October 2013
The influence of thinning on components of stand water balance in a ponderosa pine forest stand during and after extreme drought journal April 2007
Mountain Pine Beetle Outbreaks in the Rocky Mountains: Regulators of Primary Productivity? journal April 1986
Competitive and mutualistic dependencies in multispecies vegetation dynamics enabled by hydraulic redistribution: MULTISPECIES VEGETATION DYNAMICS journal May 2012
The influence of mineral characteristics on organic matter content, composition, and stability of topsoils under long-term arable and forest land use: ORGANIC MATTER OF TOPSOILS journal June 2012
Une nouvelle méthode pour la mesure du flux de sève brute dans le tronc des arbres journal January 1985
Stand characteristics and downed woody debris accumulations associated with a mountain pine beetle (Dendroctonus ponderosae Hopkins) outbreak in Colorado journal August 2009
Water release through plant roots: new insights into its consequences at the plant and ecosystem level: Tansley review journal January 2012
On the separation of net ecosystem exchange into assimilation and ecosystem respiration: review and improved algorithm journal September 2005
On underestimation of global vulnerability to tree mortality and forest die-off from hotter drought in the Anthropocene journal August 2015
Gap filling strategies for defensible annual sums of net ecosystem exchange journal March 2001
Effects of spatial variations in soil evaporation caused by tree shading on water flux partitioning in a semi-arid pine forest journal March 2010
An Observational and Modeling Study of Impacts of Bark Beetle–Caused Tree Mortality on Surface Energy and Hydrological Cycles journal April 2015
Multi-scale predictions of massive conifer mortality due to chronic temperature rise journal December 2015
Regional vegetation die-off in response to global-change-type drought journal October 2005
Hydrological effects of forest transpiration loss in bark beetle-impacted watersheds journal April 2014
Functional Differences in Soil Water Pools: a New Perspective on Plant Water Use in Water-Limited Ecosystems book January 2008
Transpiration in the global water cycle journal June 2014
Ecohydrological controls on soil moisture and hydraulic conductivity within a pinyon-juniper woodland: ECOHYDROLOGICAL CONTROLS ON SOIL MOISTURE journal August 2007
Soil Water Repellency: A Method of Soil Moisture Sequestration in Pinyon–Juniper Woodland journal January 2010
Use of change-point detection for friction–velocity threshold evaluation in eddy-covariance studies journal April 2013
Root systems of some Chihuahuan Desert plants journal October 2001
A conceptual model of water yield effects from beetle-induced tree death in snow-dominated lodgepole pine forests: A CONCEPTUAL MODEL OF THE WATER YIELD EFFECTS OF TREE DEATH journal May 2012
Temporal dynamics of soil moisture in a northern temperate mixed successional forest after a prescribed intermediate disturbance journal October 2013
Effects of Woody Plants on Microclimate in a Semiarid Woodland: Soil Temperature and Evaporation in Canopy and Intercanopy Patches journal November 1998
Temperature as a potent driver of regional forest drought stress and tree mortality text January 2012

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