Links lead to pdf files of Publications
Journal Articles
Cavaleri
MA, SF Oberbauer, DB Clark, DA Clark and MG Ryan. The classic
sun/shade leaf model may not apply to forest canopies. Submitted to Ecology Letters (April 2008).
Smithwick
EA, MG Ryan, DM Kashian, WH Romme, DB Tinker and MG Turner. Modeling the effects
of fire and climate change on carbon and nitrogen storage in lodgepole pine (Pinus contorta) stands. In Press, Global Change Biology (December
2007).
Resh SC, LA Joyce and MG Ryan. Chipping and
Mastication in Forest Ecosystems—A Synthesis. To be submitted to Western Journal of Applied Forestry (May 2008).
Sherrill
KR, MA Lefsky, JB Bradford, and MG Ryan. In Press. Forest Structure
Estimation and Pattern Exploration from Discrete Return Lidar in Subalpine
Forests of the Central Rockies. Canadian Journal of Forest Research (March 2008).
Bradford
JB, RA Birdsey, LA Joyce and MG Ryan. In Press. Tree age,
disturbance history, and carbon stocks and fluxes in subalpine Rocky Mountain
forests. Global Change Biology (April 2008).
Cavaleri MA, SF Oberbauer and MG Ryan. 2008. Foliar
and ecosystem respiration in an old-growth tropical rain forest. Plant
Cell & Environment 31:473-483.
Clark DB, PC Olivas, SF Oberbauer, DA Clark, MG Ryan. 2008.
First
direct landscape-scale measurement of tropical rain forest Leaf Area Index, a
key driver of global primary productivity. Ecology
Letters 11:163-172.
Stape
JL, D Binkley and MG Ryan. 2008. Production
and carbon allocation in a clonal Eucalyptus
plantation with water and nutrient manipulations. Forest Ecology and Management 255: 920-930.
Litton
CM, JW Raich and MG Ryan. 2007. Carbon allocation in
forest ecosystems (review article).
Global Change Biology 13:
2089-2109.
Hyvönen
R, Ågren GI, Linder S, Persson T, Cotrufo MF, Ekblad A, Freeman M, Grelle A,
Janssens IA, Jarvis PG, Kellomäki S, Lindroth A, Loustau D, Lundmark T, Norby
RJ, Oren R, Pilegaard K, Ryan MG, Sigurdsson BD, Strömgren M, van Oijen M,
Wallin G. 2007. The
likely impact of elevated [CO2], nitrogen deposition, increased
temperature and management on carbon sequestration in temperate and boreal
forest ecosystems: a literature review.
New Phytologist 173:463-480.
Palmroth
S, R Oren, HR McCarthy, KH Johnsen, AC Finzi, JR Butnor, MG Ryan and WH Schlesinger. 2006. Aboveground
sink strength in forests controls the allocation of carbon below ground and
its [CO2]-induced enhancement.
Proceedings of the National Academy of Sciences 130: 19362–19367.
Chapin
FS, Woodwell GM, Randerson JT, Rastetter EB, Lovett GM, Baldocchi DD, Clark
DA, Harmon ME, Schimel DS, Valentini R, Wirth C, Aber JD, Cole JJ, Goulden
ML, Harden JW, Heimann M, Howarth RW, Matson PA, McGuire AD, Melillo JM,
Mooney HA, Neff JC, Houghton RA, Pace ML, Ryan MG, Running SW, Sala OE,
Schlesinger WH, Schulze ED. 2006. Reconciling
carbon-cycle concepts, terminology, and methods. Ecosystems 9:1041-1050
Binkley
D, Kashian DM, Boyden S, Kaye MW, Bradford JB, Arthur MA, Fornwalt PJ and
Ryan MG. 2006. Patterns of
growth dominance in forests of the Rocky Mountains, USA. Forest Ecology and Management 236: 193–201.
Cavaleri
MA, Oberbauer SF and MG Ryan.
2006. Wood CO2
efflux in a primary tropical rain forest.
Global Change Biology
12:1-17.
Kashian
DM, WH Romme, DB Tinker, MG Turner, and MG Ryan. 2006.
Carbon
storage in coniferous landscapes with stand-replacing fires: Effects of fire frequency, post-fire
recovery, and ecosystem processes. BioScience
7:598-606.
Ryan
MG, N Phillips, and BJ Bond.
2006. The
hydraulic limitation hypothesis revisited. Plant, Cell and Environment 29: 367-381. ‘This
is an electronic version of an article published in Plant, Cell and
Environment: complete citation information for the final version of the
paper, as published in the print edition of Plant, Cell and Environment, is
available on the Blackwell Synergy online delivery service, accessible via
the journal’s website at http://www.blackwell-synergy.com.’
Binkley
D, JL Stape, EN Takahashi and MG Ryan.
2006. Tree-girdling
to separate root and heterotrophic respiration in two Eucalyptus stands in
Brazil. Oecologia 148: 447-454.
Ryan
MG and BE Law. 2005. Interpreting,
measuring, and modeling soil respiration. Biogeochemistry 73:
3-27.
Hubbard
RM, MG Ryan, K Elder and CC Rhoades.
2005. Seasonal
patterns in soil surface CO2 flux under snow cover in 50 and 300
year old subalpine forests. Biogeochemistry 73: 93-107.
Binkley
D, J Kaye, M Barry and MG Ryan. 2004. First rotation
changes in soil carbon and nitrogen in a Eucalyptus plantation in
Hawaii. Soil Science Society of America Journal 68: 1713-1719
Harmon
ME, K Bible, MG Ryan, DC Shaw, H Chen, J Klopatek and X
Li. 2004. Production,
respiration, and overall carbon balance in an old-growth Pseudotsuga-Tsuga
forest ecosystem. Ecosystems 7: 98-512.
Ryan
MG, D Binkley, JH Fownes, CP Giardina and RS Senock. 2004.
An
experimental test of the causes of forest growth decline with stand age. Ecological
Monographs 74: 393-414.
Giardina
CP, D Binkley, MG Ryan, JH Fownes and RS Senock. 2004.
Belowground
carbon cycling in a humid tropical forest decreases with fertilization. Oecologia
139: 545-550
Stape
JL, MG Ryan and D Binkley. 2004. Testing the 3-PG
process-based model to simulate Eucalyptus growth with an objective approach
to the soil fertility rating parameter. Forest Ecology and Management 193:219-234.
Stape
JL, D Binkley and MG Ryan. 2004. Eucalyptus
production and the supply, use and the efficiency of use of water, light and
nitrogen across a geographic gradient in Brazil. Forest Ecology and Management 193:17-31.
Binkley
D, JL Stape and MG Ryan. 2004. Thinking
about efficiency of resource use in forests. Forest Ecology and Management 193:5-16.
Hubbard
RM, MG Ryan, CP Giardina and HR Barnard. 2004. The
effect of fertilization on sap flux and canopy conductance in a Eucalyptus
saligna experimental forest. Global Change Biology 10:427-436.
Litton
CM, MG Ryan and DH Knight. 2004. Effects
of tree density and stand age on carbon allocation patterns in a postfire lodgepole
pine ecosystem. Ecological Applications 14: 460-475.
Phillips
N, BJ Bond, NG McDowell, MG Ryan and A Schauer. 2003. Leaf
area compounds height-related hydraulic costs of water transport in Oregon
white oak trees. Functional Ecology 17:832-840.
Giardina
CP, MG Ryan, D Binkley and JH Fownes. 2003. Primary
production and carbon allocation in relation to nutrient supply in an
experimental tropical forest. Global Change Biology 9:1438-1450.
Litton
CM, MG Ryan, DH Knight and PD Stahl. 2003. Soil-surface CO2
efflux and microbial biomass in relation to tree density thirteen years after
a stand replacing fire in a lodgepole pine ecosystem. Global Change
Biology 9:680-696.
Barnard
HR and MG Ryan. 2003. A test of the
hydraulic limitation hypothesis in fast-growing Eucalyptus saligna.
Plant, Cell and Environment 26:1235-1245.
Phillips
NG, MG Ryan, BJ Bond, NG McDowell, TM Hinckley and J Cermak. 2003. Reliance on
stored water increases with tree size in three species in the Pacific
Northwest. Tree Physiology 23: 237-245.
Litton
CM, MG Ryan, DB Tinker and DH Knight. 2003. Below- and
aboveground biomass in young post-fire lodgepole pine forests of contrasting
tree density. Canadian Journal of Forest Research 33:351-363.
Ryan
MG. 2002. Canopy
processes research. Tree Physiology 22: 1035-1043.
McDowell
N, N Phillips, C Lunch, BJ Bond and MG Ryan. 2002. An
investigation of hydraulic limitation and compensation in large, old
Douglas-fir trees. Tree Physiology 22:763-774.
McDowell
N, H Barnard, BJ Bond, T Hinckley, RM Hubbard, H Ishii, B Köstner, FC
Meinzer, JD Marshall, F Magnani, N Phillips, MG Ryan and D Whitehead. 2002. The
relationship between tree height and leaf area:sapwood area ratio. Oecologia
132:12-20.
Giardina
CP and MG Ryan. 2002. Total
belowground carbon allocation in a fast growing Eucalyptus plantation
estimated using a carbon balance approach. Ecosystems 5: 487-499.
Hubbard
RM, BJ Bond, RS Senock and MG Ryan. 2002. The effect
of branch height on leaf gas exchange, branch hydraulic conductance and
branch sap flux in open grown ponderosa pine. Tree Physiology
22:575-581.
Vose
JM and MG Ryan. 2002. Seasonal
respiration of foliage, fine roots, and woody tissues in relation to growth,
tissue N content, and photosynthesis. Global Change Biology
8:182-193.
Binkley
D, JL Stape, MG Ryan, HR Barnard and JH Fownes. 2002. Age-related
decline in forest ecosystem growth: an individual-tree, stand-structure
hypothesis. Ecosystems 5:58-67.
Phillips
N, BJ Bond, NG McDowell and MG Ryan. 2002. Canopy
and hydraulic conductance in young, mature and old Douglas-fir trees. Tree
Physiology 22: 205-211.
Williams
M, BJ Bond and MG Ryan. 2001. Evaluating different soil
and plant hydraulic constraints on tree function using a model and water flux
data from ponderosa pine. Plant, Cell and Environment 24: 679-690.
Giardina
CP, MG Ryan, RM Hubbard and D Binkley. 2001. Tree species and soil textural
controls on carbon and nitrogen mineralization rates. Soil Science
Society of America Journal 65:1272-1279.
Saxe
H, MGR Cannell, Ø Johnsen, MG Ryan and G Vourlitis. 2001. Tree and forest functioning
in response to global warming. New Phytologist 149:369-400.
Phillips
N, Bond BJ and Ryan MG. 2001. Gas exchange and hydraulic
properties in the crowns of two tree species in a Panamanian moist forest.
Trees 15: 123-130.
Hubbard
RM, V Stiller, MG Ryan and JS Sperry. 2001 Stomatal
conductance and photosynthesis vary linearly with plant hydraulic conductance
in ponderosa pine. Plant, Cell and Environment 24: 113-121.
Giardina
CP and MG Ryan. 2000. Evidence
that temperature does not influence the decomposition of organic carbon in
forest mineral soils. Nature 404: 858-861.
Ryan
MG, BJ Bond, BE Law, RM Hubbard, D Woodruff, E Cienciala and J Kucera. 2000. Transpiration and
whole-tree conductance in ponderosa pine trees of different heights. Oecologia.
124: 553-560.
Bond
BJ and MG Ryan. 2000. Comment
on 'Hydraulic limitation of tree height: a critique' by Becker, Meinzer &
Wullschleger. Functional Ecology 14: 135-140.
Brown PE, MG Ryan and TA Andrews. 2000. Historical
surface fire frequency in ponderosa pine stands in Research Natural Areas,
Central Rocky Mountains and Black Hills, USA. Natural Areas Journal
20: 133-139.
Hubbard
RM, BJ Bond and MG Ryan. 1999. Evidence
that hydraulic conductance limits photosynthesis in old Pinus ponderosa
trees. Tree Physiology 19: 165-172.
Law
BE, MG Ryan and PM Anthoni. 1999. Seasonal and annual
respiration of a ponderosa pine ecosystem. Global Change Biology
5: 169-182.
Binkley
D and MG Ryan. 1998. Net
primary productivity and nutrient cycling in replicated stands of Eucalyptus
saligna and Albizia facaltaria. Forest Ecology and Management 112: 79-85.
Cienciala
E, J Kucera, MG Ryan, MG and A Lindroth. 1998. Water flux in boreal forest
during two hydrologically contrasting years; species regulation of canopy
conductance and transpiration. Annales des Sciences Forestières 55:
47-61.
Ryan MG, D Binkley and JH Fownes. 1997. Age-related
decline in forest productivity: pattern and process. Advances in
Ecological Research 27: 213-262.
Ryan
MG and BJ Yoder 1997. Hydraulic
limits to tree height and tree growth. Bioscience 47: 235-242.
Margolis
HA and MG Ryan. 1997. A
physiological basis for biosphere—atmosphere interactions in the boreal
forest: an overview. Tree Physiology 17:491-499.
Ryan
MG, MB Lavigne and ST Gower. 1997. Annual carbon cost
of autotrophic respiration in boreal forest ecosystems in relation to species
and climate. Journal of Geophysical Research, BOREAS Special
Issue, 102(D24): 28871-28884.
McCaughey
JH, P Lafleur, D Joiner, D Jelinski and MG Ryan. 1997. Magnitudes and seasonal
patterns of energy, water, and carbon exchanges at a boreal young jack pine
forest in the BOREAS northern study area. Journal of Geophysical
Research, BOREAS Special Issue, 102(D24): 28997-29008.
Sellers
PJ, FG Hall, RD Kelly, A Black, D Baldocchi, J Berry, MG Ryan, KJ Ranson, PM
Crill, DP Lettenmaier, H Margolis, J Cihlar, J Newcomer, D Fitzjarrald, PG
Jarvis, ST Gower, D Halliwell, D Williams, BGoodison, DE Wickland, and FE
Guertin. 1997. BOREAS in 1997: Experiment Overview, Scientific Results and
Future Directions. Journal of Geophysical Research, BOREAS
Special Issue, 102(D24): 28731-28770.
Lavigne
MB, MG Ryan, DE Anderson, DD Baldocchi, PM Crill, DR Fitzjarrald, ML Goulden,
ST Gower, JM Massheder, JH McCaughey, M Rayment and RG Striegl. 1997. Comparing nocturnal eddy
covariance measurements to estimates of ecosystem respiration made by scaling
chamber measurements. Journal of Geophysical Research, BOREAS
Special Issue, 102(D24): 28977-28986.
Lavigne MB and MG Ryan. 1997. Growth and maintenance
respiration rates of aspen, black spruce and jack pine stems at northern and
southern BOREAS sites. Tree Physiology 17:543-551.
Ranne
BM, WL Baker, T Andrews and MG Ryan. 1997. Natural
variability of vegetation, soils, and physiography in the bristlecone pine
forests of the Rocky Mountains. Great Basin Naturalist 57: 21-37.
Ryan
MG, RM Hubbard, S Pongracic, RJ Raison and RE McMurtrie. 1996. Foliage,
fine-root, woody-tissue and stand respiration in Pinus radiata in relation to
nutrient content. Tree Physiology 16: 33-343.
Murty
D, McMurtrie, RE and MG Ryan. 1996. Declining forest productivity in
aging forest stands - a modeling analysis of alternative hypotheses. Tree
Physiology 16: 187-200.
Ryan
MG. 1995. Foliar
maintenance respiration of subalpine and boreal trees and shrubs in relation
to nitrogen content. Plant, Cell and Environment 18: 765-772.
Hubbard
RM, MG Ryan and DL Lukens. 1995.
A simple, battery operated temperature-controlled cuvette for respiration
measurements. Tree Physiology 15: 175-179.
Sellers
P, FG Hall, HA Margolis, R Kelly, D Baldocchi, J den Hartog, J Cilar, MG
Ryan, BG Goodison, P Crill, J Ranson, D Lettenmaier and D Wickland. 1995. The
Boreal Ecosystem-Atmosphere study (BOREAS): an overview and early results
from the 1994 field year. Bulletin of the American Meteorological
Society 76: 1549-1577.
Ryan
MG, ST Gower, RM Hubbard, RH Waring, HL Gholz, WP Cropper and SW Running.
1995. Stem
maintenance respiration of four conifers in contrasting climates. Oecologia
101: 133-140.
Ryan
MG, RM Hubbard, DL Clark and RL Sanford, Jr. 1994. Woody
tissue respiration for Simarouba amara and Minquartia guianensis,
two tropical wet forest trees with different growth habits. Oecologia
100: 213-220.
Ryan
MG, S
Linder,
J Vose and RM Hubbard. 1994. Dark respiration in
pines. Ecological Bulletins (Stockholm), 43: 50-63.
Yoder
B, MG Ryan, RH Waring, AW Schoettle and MR Kaufmann. 1994. Evidence
of reduced photosynthetic rates in old trees. Forest Science 40:513-527.
Waring
RH, J Runyon, SN Goward, R McCreight, B Yoder and MG Ryan. 1993. Developing
remote sensing techniques to estimate photosynthesis and annual forest growth
across a steep climatic gradient in western Oregon, U.S.A. Studia Forestalia Suecica
194: 33-42.
Ryan
MG and RH Waring. 1992. Stem
maintenance and stand development in a subalpine lodgepole pine forest. Ecology
73: 2100-2108.
Binkley
D, K Dunkin, D DeBell and MG Ryan. 1992. Litterfall
cycling of nutrients in plantations of Eucalyptus and Albizia
in Hawaii. Forest Science 38: 393-408.
Ryan
MG. 1991. A simple
method for estimating gross carbon budgets for vegetation in forest
ecosystems. Tree Physiology 9: 255-266.
Oker-Blom
P, MR Kaufmann and MG Ryan. 1991. Performance
of a canopy light interception model for conifer shoots, trees, and stands.
Tree Physiology 9: 227-243.
Rastetter
EB, MG Ryan, GR Shaver, JM Melillo, KJ Nadelhoffer, JE Hobbie and JD Aber.
1991. A
general biogeochemical model describing the responses of the C and N cycles
in terrestrial ecosystems to changes in CO2, climate, and N deposition. Tree
Physiology 9: 101-126.
Ryan
MG. 1991. The effects
of climate change on plant respiration. Ecological Applications 1:
157-167.
Ryan
MG, JM Melillo and A Ricca. 1990. Comparing methods for
determining proximate carbon fractions of forest litter. Canadian
Journal of Forest Research 20: 166-171.
Ryan
MG. 1990. Growth
and maintenance respiration in stems of Pinus contorta and Picea
engelmannii. Canadian Journal of Forest Research 20:48-57.
Ryan
MG. 1989. Sapwood
volume for three subalpine conifers: predictive equations and ecological
implications. Canadian Journal of Forest Research 19: 1397-1401.
Schreuder
HT, HG Li, MG Ryan and CT Scott. 1988. Adjusting estimates in two-way tables
by incorporating outside information. Canadian
Journal of Forest Research 18: 1280-1285.
Kaufmann
MR and MG Ryan. 1986. Environmental,
physiographic, and stand effects on individual tree growth in subalpine
forests. Tree Physiology 2: 47-59.
Hinds
TE and MG Ryan. 1985. Expansion of Sooty-bark and Ceratocystis canker
expansion on aspen. Plant Disease 69:842-844.
Book Chapters
Ryan
MG, ER Hunt Jr., RE McMurtrie, GI Ågren, JD Aber, AD Friend, EB Rastetter, WJ
Pulliam, RJ Raison and S Linder. 1996. Comparing models of ecosystem function
for coniferous forests. I. Model description and validation. Pages 313-362 in
AI Breymeyer, DO Hall, GI Ågren and JM Melillo, editors, Global Change:
Effects on Coniferous Forests and Grasslands (SCOPE), John Wiley and
Sons.
Ryan
MG, RE McMurtrie, GI Ågren, Hunt, ER, Jr., JD Aber, AD Friend, EB Rastetter
and WJ Pulliam. 1996. Comparing models of ecosystem function for coniferous
forests. II. Predictions of response to changes in atmospheric CO2 and
climate. Pages 363-387 in AI Breymeyer, DO Hall, GI Ågren and JM Melillo,
editors, Global Change: Effects on Coniferous Forests and Grasslands (SCOPE),
John Wiley and Sons.
Sprugel
DF, MG Ryan, JR Brooks, KA Vogt and TA Martin. 1994. Respiration from the
organ level to the stand. Pages 255-299 in WK Smith and TM Hinckley, editors,
Resource Physiology of Conifers: Acquisition, Allocation, and Utilization,
Academic Press, Boca Raton, Florida, USA.
Waring
RH and MG Ryan. 1995. Carbon balance Modelling. Pages 480-491 in A Bisio and
SG Boots, editors, Encyclopedia of Energy Technology and the Environment,
4th Edition, John Wiley and Sons, New York, NY, USA.
Other
Publications
Nelson KN, DM Kashian and MG Ryan. 2007. Planting
burned areas for carbon sequestration.
Final Report, Coalition for the Upper South Platte.
Nelson KN, DM Kashian and MG Ryan. 2007. Forest
biomass removals for fossil fuels offsets. Final Report, Coalition for the Upper South Platte.
Campbell RE and MG Ryan. 1982. Precipitation and
temperature characteristics of forested watersheds in north-central Arizona. USDA Forest Service, General Technical
Report RM-93,
12p.
Rogers, JJ, JM Prosser, LD Garrett and MG Ryan. 1984.
ECOSIM: a system for projecting multiresource outputs under alternative
forest management regimes. RM
Administrative Report.
Ryan, MG and WW Covington. 1986. Effects of prescribed
burning in ponderosa pine on soil inorganic nitrogen content. USDA Forest Service Research Note, RM-464, 5p.
Kaufmann, MR, CA Troendle, MG Ryan and HT Mowrer. 1987.
Trees--the link between silviculture and hydrology. Symposium proceedings, Management of Subalpine Forests: Building on 50
Years of Research. USDA Forest Service, General Technical
Report, RM-149,
p. 54-60.
Ryan, MG. 1987. Growth efficiency, leaf area and sapwood
volume in subalpine conifers. Symposium proceedings, Management of Subalpine Forests: Building on 50
Years of Research. USDA Forest Service, General Technical
Report, RM-149,
p. 180-184.
Schuler, CE, DC Markstrom and MG Ryan. 1989. Fibril
angle in young-growth ponderosa pine as related to site index, d.b.h, and
location in tree. USDA Forest Service Research Note, RM-492, 4p.
Ryan, MG, LA Joyce, T Andrews and K Jones. 1994.
Research Natural Areas of the USDA Forest Service in Colorado, Wyoming,
Nebraska, North Dakota, and South Dakota. USDA Forest Service General Technical
Report, RM-251,
58 p.