Using soils to predict changes in forest cover in response ... · Mountain Pine Beetle Infestation...
Transcript of Using soils to predict changes in forest cover in response ... · Mountain Pine Beetle Infestation...
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Using soils to predict changes in forest cover in response to climate change
(in progress)
Wendy Peterman and Dr. Dominique Bachelet, Conservation Biology Institute
11 July 2012, NP LCC webinar
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consbio.org 30 staff 23 scientists Corvallis, CA (7)
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•GIS specialist
•Soil scientist, in the Climate Change modeling team at CBI
•Ph. D. student at OSU, Dept of Forest Engineering
Wendy Peterman
Photo by Sean D. Brown
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The issue … Forest mortality, locally and globally
Allen 2010, Allen et al. 2010
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The problem … Identifying cause of mortality
Pollution (damaged stomates)
Heat Wave (embolism) (July 2003 – W. Europe)
Pest & Insect Outbreaks
Extended drought
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Available soil water is an issue as climate warms …
Drought thresholds vary with soil characteristics: 4 examples of how water moves through the soil
GRANULAR PRISMATIC BLOCKY PLATY
Water-limiting layer
Source: NRCS
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Source: Colorado State University
Soil type determines water infiltration rate
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In Southwest USA: drought impacts – pinyon mortality
THRESHOLD “TIPPING POINT”
Ecohydrology, Peterman et al., 2012
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Texture Climate
Soil order
Resulting MORTALITY RISK
UT
CO
NM
AZ
Data Analysis … Trends - Correlations - Forecast
area of pinyon mortality
pinyon full range
Mineral/Salt
% a
rea
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Salt
Order
Texture
Climate
Observed Mortality
Oct 2002
FORECAST
Method: GIS Model - Correlation
Oct 2004
Mortality Risk
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Alaska Yellow Cedar early springs: wet soils – vulnerability to late frost
Sudden Oak Death endemic pathogen
Mountain Pine Beetle temperature threshold for beetles
NP – LCC different mortality issues – causes
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HOT and DRY
source: Glenn Juday, U. Alaska
NP–LCC Thresholds ex. #1 Alaska
Climate Shift
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ALBERTA COLUMBIA BRITISH
-40
Cool summers
Winter minimum below -40oC
1910 1930 1950 1970 1990 2010 0
1.0
2.0
3.0
4.0
5.0
6.0
8.0
7.0
1999
2001 2000
2003
2002
2005 9.0
2004
106 ha infected
Mountain Pine Beetle Infestation in BC 2005: 411million m3 infested = $39.2 billions
(6.4 million homes)
1970s
Source: Allan Carroll, Pacific Forestry Centre in Victoria
NP–LCC Thresholds ex. #2 British Columbia
Temperature threshold for MPB population
(-40oC isotherm shifts north)
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NP-LCC Prepare for unknown future thresholds
Widespread Increase of Tree Mortality Rates in Western United States
Van Mantgem et al., Science, 2009
? Upcoming threshold
?
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1. Produce decision support tools:
* spatial data: soil characteristics, soil water resources * model projections: trends in soil-plant dynamics * all freely available through databasin.org.
2. Test model assumptions by providing new soil drivers: * several models; * several spatial and temporal scales; 3. Produce soil vulnerability maps
NP- LCC Project Objectives
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NP - LCC Project : Progress to date
1. Gathered soils data for 4 US states and one
Canadian province, mapped the data, shared all the results through databasin.org.
2. Finished the training to run the models (MC1, 3PG)
• in the process, published paper in Ecohydrology using 3PG to simulate mortality for a class project focusing on SW region
Wendy Peterman, Richard H. Waring, Trent Seager, William L. Pollock. Soil properties affect pinyon pine - juniper response to drought. Ecohydrology, 2012; DOI: 10.1002/eco.1284
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NP- LCC Project: Progress so far …
SOILS
MORTALITY
VEG COVER
PHYSICAL
next, simulations ….
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NP – LCC : data gathering, mapping and sharing
Oregon
California
Alaska
examples in databasin.org
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NP - LCC Project : data gathering, mapping & sharing
1. Gathered soils data for 4 US states and one
Canadian province, mapped the data, shared all the results through databasin.org.
2. Finished the training to run the models (MC1, 3PG)
• in the process, published paper in Ecohydrology using 3PG to simulate mortality for a class project focusing on SW region
Wendy Peterman, Richard H. Waring, Trent Seager, William L. Pollock. Soil properties affect pinyon pine - juniper response to drought. Ecohydrology, 2012; DOI: 10.1002/eco.1284
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NP – LCC : challenges
•International boundaries, methods and sources of data •British Columbia/Yukon soils data
•Data scarcity and gaps to be filled
•National Forests – gaps filled with STATSGO – •would be useful to have Forest Service Soil Resource
Inventory data
•Abundance of data that need to be analyzed
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The purpose of models is not to fit the data but to sharpen the questions. Samuel Karlin (1924-2007)
Testing the value of the new soil data with models
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NEXT PHASE: test role of soils to project future plant cover
Dynamic Wildfire
Carbon, H2O & Nutrient Cycling
(CENTURY)
Vegetation Distribution
(MAPSS rules) Monthly
CLIMATE
DGVM (thresholds)
Process Model (physiological controls)
SDM (species sensitivity)
Input Drivers Vegetation Models
CLIMATE
SOIL
Testing …
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NP – LCC : multi-agency, NGO collaborative
Mortality Risk
Funding - LCC
Models
Soil Characteristics
Climate
Observed Mortality
Soils Data NRCS
Future Climate Projections NW-CSC
Observed Mortality USFS
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Links
NP LCC gallery on databasin.org: http://app.databasin.org/app/pages/galleryPage.jsp?id=33a551e59b824cf7ab908644fb420880
NP LCC webpage: http://www.fws.gov/pacific/Climatechange/nplcc/
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W. Peterman, R. H. Waring, T. Seager, W. L. Pollock. Soil properties affect pinyon pine - juniper response to drought. Ecohydrology, 2012; DOI: 10.1002/eco.1284
Bibliography
P.J. van Mantgem, N.L. Stephenson, J.C. Byrne2, L.D. Daniels, J.F. Franklin, P.Z. Fulé, M.E. Harmon, A.J. Larson, J.M. Smith, A.H. Taylor and T.T. Veblen, Science, 2009, 323, 521- 524
C.D. Allen, A.K. Macalady, H. Chenchouni, D. Bachelet, N. McDowell, M. Vennetier, T. Kitzberger, A. Rigling, D.D. Breshears, E.H. Hogg, P. Gonzalez, R. Fensham, Z. Zhang, J. Castro, N. Demidova, J-H. Lim, G. Allard, S.W. Running, A. Semerci and N. Cobb, Forest Ecology and Management, 2010, 259, 660-684
V.A. Barber, G.P. Juday, & B.P. Finney. Reduced growth of Alaskan white spruce in the twentieth century from temperature-induced drought stress , 2000. Nature, 406, 668–673.
A.L.Carroll, J. Regniere, J.A. Logan, S.W. Taylor, B. Bentz, J.A. Powell. Impacts of climate change on range expansion by the mountain pine beetle. – Mountain Pine Beetle Initiative Working Paper, 2006-14, Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre.