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Publications:
Daly E, Palmroth S, Stoy P, Siqueira M, Oishi AC, Jehn-Yih Juang J-Y, Oren R, Porporato A and GG Katul. 2009. The effects of elevated atmospheric CO2 and nitrogen amendments on subsurface CO2 production and concentration dynamics in a maturing pine forest. Biogeochemistry 94:271287, DOI 10.1007/s10533-009-9327-7. PDF Franklin O, McMurtrie RE, Iversen CM, Crous KY, Finzi AC, Tissue DD, Ellsworth DS, Oren R and RJ Norby. 2009. Forest fine-root production and nitrogen use under elevated CO2: contrasting responses in evergreen and deciduous trees explained by a common principle. Global Change Biology 15:132144, doi: 10.1111/j.1365-2486.2008.01710.x. PDF Katul GG, Palmroth S, Oren R. 2009. Leaf stomatal responses to vapour pressure deficit under current and CO2-enriched atmosphere explained by the economics of gas exchange Plant Cell & Environment 32:968-979. PDF Katul GG, Palmroth S, Oren R. 2009. Leaf stomatal responses to vapour pressure deficit under current and CO2-enriched atmosphere explained by the economics of gas exchange Plant Cell & Environment 32:968-979. PDF Katul GG, Palmroth S, Oren R. 2009. Leaf stomatal responses to vapour pressure deficit under current and CO2-enriched atmosphere explained by the economics of gas exchange Plant Cell & Environment 32:968-979. PDF Novick K, Oren R, Stoy P, Juang J-Y, Siqueira M, Katul G. 2009. The relationship between reference canopy conductance and simplified hydraulic architecture Advances in Water Resources 32:809-819. PDF Daly E, Oishi AC, Porporato A, Katul GG. 2008. A stochastic model for daily subsurface CO2 concentration and related soil respiration Advances in Water Resources 31(7):987-994. PDF Kim H-S, Oren R, Hinckley TM. 2008. Actual and Potential Transpiration and Carbon Assimilation in an Irrigated Poplar Plantation Tree Physiology 28:559-577. PDF Maier CA, Palmroth S and E Ward. 2008. Short-term effects of fertilization on photosynthesis and leaf morphology of field-grown loblolly pine following long-term exposure to elevated CO2 concentration Tree Physiology 28:597-606. PDF Oishi AC, Oren R, Stoy PC. 2008. Estimating components of forest evapotranspiration: A footprint approach for scaling sap flux measurements Agricultural and Forest Meteorology 148:1719-1732. PDF Ollinger SV, Richardson AD, Martin ME, Hollinger DY, Frolking SE, Reich PB, Plourde LC, Katul GG, Munger JW, Oren R, Smith M-L, U KTP, Bolstad PV, Cook BD, Day MC, Martin TA, Monson RK and HP Schmid. 2008. Canopy nitrogen, carbon assimilation and albedo in temperate and boreal forests: Functional relations and potential climate feedbacks. Proceedings of the National Academy of Sciences 105(49):1933519340. PDF Oren R, Kull K, Noormets A. 2008. Olevi Kull's lifetime contribution to ecology Tree Physiology 28:483-490. PDF Pritchard SG, Strand AE, McCormack ML, Davis MA, and R Oren. 2008. Mycorrhizal and rhizomorph dynamics in a loblolly pine forest during five years of free-air-CO2-enrichment (FACE) Global Change Biology 14:1252-1264 doi: 10.1111/j.1365-2486.2008.01567.x. PDF Pritchard SG, Strand AE, McCormack ML, Davis MA, Finzi AC, Jackson RB, Matamala R, Rogers HH and R Oren. 2008. Fine root dynamics in a loblolly pine forest are influenced by free-air-CO2-enrichment: a six-year-minirhizotron study Global Change Biology 14(3):588602 doi:10.1111/j.1365-2486.2007.01523.x. PDF Stoy PC, Katul GG, Siqueira MBS, Juang J-Y, Novick KA, McCarthy HR, Oishi AC and R Oren. 2008. Role of vegetation in determining carbon sequestration along ecological succession in the southeastern United States Global Change Biology 14:1-19 doi: 10.1111/j.1365-2486.2008.01587.x. PDF Strand AE, Pritchard SG, McCormack ML, Davis MA and R Oren. 2008. Irreconcilable Differences: Fine-Root Life Spans and Soil Carbon Persistence Science 319(5862):456-458 doi:10.1126/science.1151382. PDF Ward EJ, Oren R, Sigurdsson BD, Jarvis PG, Linder S. 2008. Fertilization effects on mean stomatal conductance are mediated through changes in the hydraulic attributes of mature Norway spruce trees Tree Physiology 28:579-596. PDF Xiao J, Zhuang Q, Baldocchi DD, Law BE, Richardson AD, Chen J, Oren R, Starr G, Noormets A, Ma S, Verma SB, Wharton S, Wofsy SC, Bolstad PV, Burns SP, Cook DR, Curtis PS, Drake BG, Falk M, Fischer ML, Foster DR, Gu L, Hadley JL, Hollinger DY, Katul GG, Litvak M, Martin TA, Matamala R, McNulty S, Meyers TP, Monson RK, Munger JW, Oechel WC, Paw U KT, Schmid HP, Scott RL, Sun G, Suyker AE, Torn MS. 2008. Estimation of net ecosystem carbon exchange for the conterminous United States by combining MODIS and AmeriFlux Data Agricultural and Forest Meteorology 148:1827-1847. PDF Ewers BE, Oren R, Kim H-S, Bohrer G and C-T Lai. 2007. Effects of hydraulic architecture and spatial variation in light on mean stomatal conductance of tree branches and crowns. Plant, Cell and Environment 30:483-496. PDF Finzi AC, Norby RJ, Calfapietra C, Gallet-Budynek A, Gielen B, Holmes WE, Hoosbeek MR, Iversen CM, Jackson RB, Kubiske ME, Ledford J, Liberloo M, Oren R, Polle A, Pritchard S, Zak DR, Schlesinger WH and R Ceulemans. 2007. Increases in nitrogen uptake rather than nitrogen-use efficiency support higher rates of temperate forest productivity under elevated CO2 Proceedings of the National Academy of Sciences (PNAS) 104(35):14014-14019. PDF 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 and G Wallin. 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. PDF Juang J-Y, Katul GG, Porporato A, Stoy PC, Siqueira MS, Detto M, Kim H-S and R Oren. 2007. Eco-hydrological controls on summertime convective rainfall triggers Global Change Biology 13:1-10. PDF Katul GG, Porporato A and R Oren. 2007. Stochastic dynamics of plant-water interactions Annual Review of Ecology, Evolution, and Systematics 38:767-791. PDF McCarthy HR, Oren R, Finzi A, Ellsworth DS, Kim H-S, Johnsen K and B Millar. 2007. Temporal dynamics and spatial variability in the enhancement of canopy leaf area under elevated atmospheric CO2 Global Change Biology 13:24792497 doi:10.1111/j.1365-2486.2007.01455.x. PDF Stoy PC, Palmroth S, Oishi AC, Siqueira MB, Juang J-Y, Novick KA, Ward EJ, Katul GG and R Oren. 2007. Are ecosystem carbon inputs and outputs coupled at short time scales? A case study from adjacent pine and hardwood forests using impulse-response analysis. Plant, Cell and Environment doi:10.1111/j.1365-3040.2007.01655.x. PDF Thérézien M, Palmroth S, Brady R and R Oren. 2007. Estimation of light interception properties of conifer shoots by an improved photographic method and a 3D model of shoot structure Tree Physiology 27(10):1375-1387. PDF Addington RN, Donovan LA, Mitchell RJ, Vose JM, Pecot SD, Jack SB, Hacke UG, Sperry JS, Oren R. 2006. Adjustments in hydraulic architecture of Pinus palustris maintain similar stomata conductance in xeric and mesic habitats Plant, Cell & Environment 29:535-545. PDF Chuang Y-L, Oren R, Bertozzi A, Phillips N and G Katul. 2006. The porous media model for the hydraulic system of a conifer tree: Linking sap flux data to transpiration rate. Ecological Modeling 191:447-468. PDF Finzi AC, Moore DJ, DeLucia EH, Kim H-S, Jackson RB, Lichter J, McCarthy H, Oren R, Pippen JS and WH Schlesinger. 2006. Progressive nitrogen limitation of ecosystem processes under elevated CO2 in a warm-temperate forest. Ecology 87(1):15-25. PDF Jaksic V, Kiely G, Albertson J, Oren R, Katul G, Leahy P, Byrne KA. 2006. Net ecosystem exchange of grassland in contrasting wet and dry years. Agricultural and Forest Meteorology 139:323-334. PDF Juang J-Y, Katul GG, Siqueira MB, Stoy PC, Palmroth S, McCarthy HR, Kim HS, Oren R. 2006. Modeling nighttime ecosystem respiration from measured CO2 concentration and air temperature profiles using inverse methods Journal of Geophysical Research 111:D08S05, doi:10.1029/2005JD005976. PDF McCarthy HR, Oren R, Finzi AC and KH Johnsen. 2006. Canopy leaf area constrains [CO2]-induced enhancement of productivity and partitioning among aboveground carbon pools. Proceedings of the National Academy of Sciences (PNAS) 103:19356-19361. PDF McCarthy HR, Oren R, Kim H-S, Johnsen KH, Maier C, Pritchard SG and MA Davis. 2006. Interaction of ice storms and management practices on current carbon sequestration in forests with potential mitigation under future CO2 atmosphere. Journal of Geophysical Research 111:doi:10.1029/2005JD006428. PDF Oren R, Hsieh C-I , Stoy P, Albertson J, McCarthy H, Harrell P and G Katul. 2006. Estimating the uncertainty in annual net ecosystem carbon exchange: spatial variation in turbulent fluxes and sampling errors in eddy-covariance measurements. Global Change Biology 12:883-896. PDF Palmroth S, Oren R, McCarthy HR, Johnsen KH, Finzi AC, Butnor JR and M G Ryan. 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 (PNAS) 103:19362-19367. PDF Siqueira MB, Katul GG,Sampson DA, Stoy PC, Juang J-Y, McCarthy HR and R Oren. 2006. Multiscale model intercomparisons of CO2 and H2O exchange rates in a maturing southeastern US pine forest. Global Change Biology 12:1189-1207. PDF Stoy PC, Katul GG, Siqueira MB, Juang J-Y, Novick KA, McCarthy HR, Oishi AC, Uebelherr JA, Kim H-S and R Oren. 2006. Separating the effects of climate and vegetation on evapotranspiration along a successional chronosequence in the southeastern US. Global Change Biology 12:21152135. PDF Stoy PC, Katul GG, Siqueira MB, Juang J-Y, Novick KA, UebelherrJM and R Oren. 2006. An evaluation of models for partitioning eddy covariance-measured net ecosystem exchange into photosynthesis and respiration. Agricultural and Forest Meteorology 141:2-18. PDF Williams CG, LaDeau SL, Oren R and GG Katul. 2006. Modeling Seed Dispersal Distances: Implications for Transgenic Pinus taeda. Ecological Applications 16(1):117-124. PDF Bohrer G, Mourad H, Laursen TA, Drewry D, Avissar R, Poggi D, Oren R, Katul GG. 2005. Finite element tree crown hydrodynamics model (FETCH) using porous media flow within branching elements: A new representation of tree hydrodynamics Water Resources Research 41:W11404, doi:10.1029/2005WR004181. PDF Mortazavi B, Chanton J, Prater J, Oishi C, Oren R and G Katul. 2005. Temporal variability in 13C of respired CO2 in a pine and a hardwood forest subject to similar climatic conditions. Oecologia 142:57-69. PDF Norby R, DeLucia E, Gielen B, Calfapietra C, Giardina C, King J, Ledford J, McCarthy H, Moore D, Ceulemans R, De Angelis P, Finzi A, Karnosky D, Kubiske M, Lukac M, Pregitzer K, Scarascia-Mugnozza G, Schlesinger W, Oren R. 2005. Forest response to elevated CO2 is conserved across a broad range of productivity. Proceedings of the National Academy of Sciences 102:18052-18056. PDF Palmroth S, Maier C, McCarthy H, Oishi C, Kim H-S, Johnsen K, Katul G and R Oren. 2005. Contrasting responses to drought of forest floor CO[sub]2[/sub] efflux in a Loblolly pine plantation and a nearby Oak-Hickory forest. Global Change Biology 11:421-434. PDF Stoy P, Katul G, Siqueira M, Juang J, McCarthy H, Kim H, Oishi A and R Oren. 2005. Variability in net ecosystem exchange from hourly to inter-annual time scales at adjacent pine and hardwood forests: a wavelet analysis Tree Physiology 25(7):887-902. PDF Addington RN, Mitchell RJ, Oren R, Donovan LA. 2004. Stomatal sensitivity to vapor pressure deficit and its relationship to hydraulic conductance in Pinus palustris Tree Physiology 24:561-569. PDF Luo Y, Su B, Currie W, Dukes J, Finzi A, Hartwig U, Hungate B, McMurtrie R, Oren R, Parton W, Pataki D, Shaw M, Zak D and C Field. 2004. Progressive Nitrogen Limitation of Ecosystem Responses to Rising Atmospheric Carbon Dioxide. BioScience 54(8):731-739. PDF Novick K, Stoy P, Katul G, Ellsworth D, Siqueira M, Juang J and R Oren. 2004. Carbon dioxide and water vapor exchange in a warm temperate grassland. Oecologia 138:259-274. PDF Phillips NG, Oren R, Licata J, Linder S. 2004. Time series diagnosis of tree hydraulic characteristics Tree Physiology 24:879-890. PDF Suwa M, Katul G, Oren R, Andrews J, Pippen J, Mace A and W Schlesinger. 2004. Impact of Elevated Atmospheric CO2 on Forest Floor Respiration in a Temperate Pine Forest. Global Biogeochemical Cycles 18(2):GB2013, doi:10.1029/2003GB002182. PDF Butnor J, Lohnsen K, Oren R and G Katul. 2003. Reduction of forest floor respiration on both carbon dioxide-enriched and reference 17-year-old loblolly pine stands. Global Change Biology 9:849-861. PDF Katul G, Leuning R and R Oren. 2003. Relationship between plant hydraulic and biochemical properties derived from a steady-state coupled water and carbon transport model. Plant, Cell and Environment 26:339-350. PDF Pataki DE, Oren R. 2003. Species difference in stomatal control of water loss at the canopy scale in a bottomland deciduous forest Advances in Water Resources 26:1267-1278. PDF Schäfer K, Oren R, Ellsworth D, Lai C, Herrick J , Finzi A, Richter D and G Katul. 2003. Exposure to an enriched CO2 atmosphere alters carbon assimilation and allocation in a pine forest ecosystem. Global Change Biology 9:1378-1400. PDF Lai C, Katul G, Butnor J, Ellsworth D and R Oren. 2002. Modelling nighttime ecosystem respiration by a constrained source optimization method. Global Change Biology 8(2):124-141. PDF Lai C, Katul G, Butnor J, Siqueira M, Ellsworth D, Maier C, Johnsen K, Mckeand S and R Oren. 2002. Modelling the limits on the response of net carbon exchange to fertilization in a south-eastern pine forest. Plant, Cell and Environment 25:1095-1119. PDF Nathan R, Katul GG, Horn HS, Thomas SM, Oren R, Avissar R, Pacala SW, Levin SA. 2002. Mechanisms of long-distance dispersal of seeds by wind Nature 418:409-413. PDF Schäfer K, Oren R, Lai C and G Katul. 2002. Hydrologic balance in an intact temperate forest ecosystem under ambient and elevated atmospheric CO2 concentration. Global Change Biology 8(9):895-911. PDF Sperry JS, Hacke UG, Oren R, Comstock JP. 2002. Water deficits and hydraulic limits to leaf water supply Plant, Cell and Environment 25:251-263. PDF Ewers BE, Oren R, Johnsen KH, Landsberg JJ. 2001. Estimating maximum mean canopy stomatal conductance for use in models Canadian Journal of Forest Research 31:198-207. Ewers BE, Oren R, Phillips N, Strömgren M, Linder S. 2001. Mean canopy stomatal conductance responses to water and nutrient availability in Picea abies and Pinus taeda Tree Physiology 21:841-850. PDF Johnsen K, Wear D, Oren R, Teskey R, Sanchez F, Will R, Butnor J, Markewitz D, Richter D, Rials T, Allen H, Seiler J, Ellsworth D, Maier C, Katul G and P Dougherty. 2001. Carbon sequestration and southern pine forests. Journal of Forestry 99:56-56. PDF Katul G, Lai C, Schäfer K, Vidakovic B, Albertson J, Ellsworth D and R Oren. 2001. Multiscale analysis of vegetation surface fluxes: from seconds to years. Advances in Water Resources 24:1119-1132. PDF Katul G, Lai C, Siqueira M, Schäfer K, Albertson J, Wesson K, Ellsworth D and R Oren. 2001. Inferring scalar sources and sinks within canopies using forward and inverse methods. In: V. Lakshmi and J.D. Albertson (eds.). Observations and Modeling of Land-Surface Fluxes within Hydrologic Systems :American Geophysical Union, Washington, D.C. PDF Katul GG, Lai C-T, Albertson JD, Vidakovic B, Schäfer KVR, Hsieh C-I, Oren R. 2001. Quantifying the complexity in mapping energy inputs and hydrologic state variables into land-surface Fluxes Geophysical Research Letters 28:3305-3307. PDF Metzger JM, Oren R. 2001. The effect of crown dimensions on transparency and the assessment of tree health Ecological Applications 11:1634-1640. PDF Oren R, Ellsworth D, Johnsen K, Phillips N, Ewers B, Maier C, Schäfer K, McCarthy H, Hendrey G, McNulty S, and G Katul. 2001. Soil fertility limits carbon sequestration by forest ecosystems in a CO2-enriched atmosphere. Nature 411:469-472. PDF Oren R, Pataki D. 2001. Transpiration in response to variation in microclimate and soil moisture in southeastern deciduous forests Oecologia 127:549-559. PDF Oren R, Sperry JS, Ewers BE, Pataki DE, Phillips N, Megonigal JP. 2001. Sensitivity of mean canopy stomatal conductance to vapor pressure deficit in a flooded Taxodium distichum L. forest hydraulic and non-hydraulic effects Oecologia 126:21-29. PDF Phillips N and R Oren. 2001. Intra- and inter-annual variation in transpiration of a pine forest Ecological Applications 11:385-396. PDF Phillips N, Oren R, Linder S, Bergh J. 2001. Effects of nutrition and soil water availability on water use in a Norway spruce stand Tree Physiology 21:851-860. PDF Schulze W, Schulze ED, Schulze I, Oren R. 2001. Quantification of insect nitrogen utilization by the Venus fly trap Dionaea muscipula catching prey with highly variable isotope signatures Journal of Experimental Botany 52:1041-1049. PDF Ewers B, Oren R and J Sperry. 2000. Influence of nutrient versus water supply on hydraulic architecture and water balance in Pinus taeda. Plant, Cell and Environment 23:1055-1066. PDF Ewers BE, Oren R. 2000. Analysis of assumptions and errors in the calculation of stomatal conductance from sap flux measurements Tree Physiology 20:579-590. PDF Hacke U, Sperry J, Ewers B, Ellsworth D, Schäfer K and R Oren. 2000. Influence of soil porosity on water use in Pinus taeda. Oecologia 124:495-505. PDF Lai C, Katul G, Ellsworth D and R Oren. 2000. Modelling vegetation atmosphere CO2 exchange by a coupled-Eulerian-Lagrangian approach. Boundary Layer Meteorology 95:91-122. PDF Lai C, Katul G, Oren R, Ellsworth D and K Schäfer. 2000. Modeling CO2 and water vapor turbulent flux distributions within a forest canopy. Journal of Geophysical Research 105:26333-26351. PDF Lai C-T, Katul G, Oren R, Ellsworth D, Schäfer KVR. 2000. Modeling CO2 and water vapor turbulent flux distributions within a forest canopy Journal of Geophysical Research 105:26333-26351. Pataki DE, Oren R, Smith WK. 2000. Sap flux of co-occurring species in a western subalpine forest during seasonal soil drought Ecology 81(9):2557-2566. PDF Schäfer KVR, Oren R, Tenhunen JD. 2000. The effect of tree height on crown-level stomatal conductance Plant, Cell and Environment 23:365-377. PDF Ewers BE, Oren R, Albaugh TJ, Dougherty PM. 1999. Carry-over effects of long term water and nutrient supply on short term water use in Pinus taeda trees and stands Ecological Applications 9:513-525. PDF Katul G, Hsieh C, Bowling D, Clark K, Shurpali N, Turnipseed A, Albertson J, Tu K, Hollinger D, Evans B, Offerle B, Anderson D, Ellsworth D, Vogel C and R Oren. 1999. Spatial variability of turbulent fluxes in the roughness sublayer of an even-aged pine forest. Boundary Layer Meteorology 93:1-28. PDF Oren R, Phillips N, Ewers BE, Pataki DE, Megonigal PJ. 1999. Sap flux-scaled transpiration in response to light, vapor pressure deficit, and leaf area reduction in a flooded Taxodium distichum L. forest Tree Physiology 19:337-347. PDF Oren R, Sperry JS, Katul GG, Pataki DE, Ewers BE, Phillips N, Schäfer KVR. 1999. Survey and synthesis of intra- and interspecific variation in stomatal sensitivity to vapour pressure deficit Plant, Cell and Environment 22:1515-1526. PDF Phillips N, Oren R, Zimmermann R, Wright SJ. 1999. Temporal patterns of water flux in trees and lianas in a Panamanian moist forest Trees 14:116-123. PDF Oren R, Ewers B, Todd P, Phillips N and G Katul. 1998. Water balance delineates the soil layer in which moisture affects canopy conductance. Ecological Applications 8:990-1002. PDF Oren R, Phillips N, Katul G, Ewers B and D Pataki. 1998. Scaling xylem sap flux and soil water balance and calculating variance: A method for partitioning water flux in forests. Annales des Sciences Forestieres 55:191-216. PDF Pataki D, Oren R and D Tissue. 1998. Elevated carbon dioxide does not affect stomatal conductance of Pinus taeda L. Oecologia 117:47-52. PDF Pataki D, Oren R and N Phillips. 1998. Responses of sap flux and stomatal conductance of Pinus taeda L. trees to stepwise reductions in leaf area. Journal of Experimental Botany 49:871-878. PDF Pataki DE, Oren R, Katul G, Sigmon J. 1998. Canopy conductance of Pinus taeda, Liquidambar styraciflua and Quercus phellos under varying atmospheric and soil moisture conditions Tree Physiology 18:307-315. PDF Phillips N and R Oren. 1998. A comparison of two daily representations of canopy conductance based on two conditional time-averaging methods and the dependence of daily conductance on environmental factors. Annales des Sciences Forestieres 55:217-235. Hogg EH, Black TA, den Hartog G, Neumann HH, Zimmermann R, Hurdle PA, Blanken PD, Nesic Z, Yang PC, Staebler RM, McDonald KC, Oren R. 1997. A comparison of sap flow and eddy fluxes of water vapor from a boreal deciduous forest Journal of Geophysical Research 102:28929-28937. Katul G, Oren R, Ellsworth D, Hsieh C, Phillips N and K Lewin. 1997. A Lagrangian dispersion model for predicting CO2 sources, sinks, and fluxes in a uniform pine (Pinus taeda) stand. Journal of Geophysical Research 102:9309-9321. PDF Katul G, Todd P, Pataki D, Kabala ZJ, Oren R. 1997. Soil water depletion by oak trees and the role of root water uptake on the moisture content spatial statistics Water Resources Research 33:611-623. PDF Phillips N, Nagchaudhuri A, Oren R and G Katul. 1997. Time constant for water transport in loblolly pine trees estimated from time series of evaporative demand and stem sapflow. Trees 11:412-419. PDF Way J, Zimmermann R, Rignot EJ, McDonald K, Oren R. 1997. Winter and spring thaw as observed with imaging radar at BOREAS Journal of Geophysical Research 102:29673-29684. Katul G, Hsieh C, Oren R, Ellsworth D and N Phillips. 1996. Latent and sensible heat flux predictions from a uniform pine forest using surface renewal and flux variance methods. Boundary Layer Meteorology 80:249-282. PDF Oren R, Zimmermann R, Terborgh J. 1996. Transpiration response of upper Amazonia floodplain and upland trees and forests to drought braking rains Ecology 77:968-973. PDF Phillips N, Oren R, Zimmermann R. 1996. Radial trends in xylem sap flow in non-, diffuse- and ring-porous species Plant, Cell and Environment 19:983-990. PDF Ellsworth D, Oren R, Huang C, Phillips N and G Hendrey. 1995. Leaf and canopy response to elevated CO2 in a pine forest under Free Air CO2 Enrichment. Oecologia 104:139-146. PDF Waring RH, Way J, Hunt R, Morrisey L, Ranson KJ, Weishampel J, Oren R, Franklin SE. 1995. Remote sensing with synthetic aperture radar in ecosystem studies Bioscience 45:715-723. PDF Berger A, Oren R, Schulze E-D. 1994. Element concentrations in the xylem sap of Picea abies (L.) Karst. seedlings extracted using various methods under different environmental conditions Tree Physiology 14:111-128. PDF Buchmann N, Oren R, and Zimmermann R. 1994. Response of magnesium-deficient saplings in a young, open stand of Picea abies (L.) Karst. to elevated soil magnesium, nitrogen and carbon Environmental Pollution 87:31-43. PDF Way J, Rignot EJM, McDonald KC, Oren R, Kwok R, Bonan G, Dobson MC, Viereck LA, Roth JE. 1994. Evaluating the type and state of Alaska taiga forests with imaging radar for use in ecosystem models IEEE Geoscience and Remote Sensing Transactions 32:353-370. PDF Oren R, Werk KS, Buchmann N, Zimmermann R. 1993. Chlorophyll-nutrient relationships as an index to nutrient limitation in Picea abies (L.) Karst. stands at different stages of decline Canadian Journal of Forest Research 23:1187-1195. PDF Buchmann N, Oren R, Gebauer G, Dietrich P, Schulze E-D. 1992. The use of stable isotopes in ecosystem research - first results of a field study with 15N Die Isotopenpraxis 28:51-71. Katz C, Oren R, Schulze E-D, Milburn JA. 1989. Uptake of water and solutes through twigs of Picea abies (L.) Karst Trees 3:33-37. PDF Meyer J, Schneider BU, Werk KS, Oren R, Schulze E-D. 1988. Performance of two Picea Abies (L.) Karst. stands at different stages of decline. V. Root tips and ectomycorrhiza development and their relations to above-ground and soil nutrients Oecologia (Berlin) 77:7-13. PDF Oren R, Schulze E-D, Werk KS, Meyer J. 1988. Performance of two Picea abies (L.) Karst. stands at different stages of decline. VII. Nutrient relations and growth Oecologia (Berlin) 77:163-173. PDF Oren R, Schulze E-D, Werk KS, Meyer J, Schneider BU, Heilmeier H. 1988. Performance of two Picea abies (L.) Karst. stands at different stages of decline. I. Carbon relations and stand growth Oecologia (Berlin) 75:25-37. PDF Oren R, Werk KS, Schulze E-D, Meyer J, Schneider BU, Schramel P. 1988. Performance of two Picea abies (L.) Karst. stands at different stages of decline. VI. Nutrient concentrations Oecologia (Berlin) 77:151-162. PDF Osonubi O, Oren R, Werk KS, Schulze E-D, Heilmeier H. 1988. Performance of two Picea abies (L.) Karst. stands at different stages of decline. IV. Xylem sap concentrations of magnesium, calcium, potassium and nitrogen Oecologia (Berlin) 77:1-6. PDF Werk KS, Oren R, Schulze E-D, Zimmermann R, Meyer J. 1988. Performance of two Picea abies (L.) Karst. stands at different stages of decline. III. Canopy transpiration of green trees Oecologia (Berlin) 76:519-524. PDF Zimmermann R, Oren R, Schulze E-D, Werk KS. 1988. Performance of two Picea abies (L.) Karst. stands at different stages of decline. II. Photosynthesis and leaf conductance Oecologia (Berlin) 76:513-518. PDF Oren R, Waring RH, Stafford SG, Barrett JW. 1987. Twenty-four years of Ponderosa pine growth in relation to canopy leaf area and understory competition Forest Science 33:538-547. PDF Steudle E, Oren R, Schulze E-D. 1987. Water transport in maize roots: Measurements of hydraulic conductivity, solute permeability, and of reflection coefficients of excised roots using the root pressure probe Plant Physiology 84:1220-1232. PDF Oren R, Schulze E-D, Matyssek R, Zimmermann R. 1986. Estimating photosynthetic rate and annual carbon gain in conifers from specific leaf weight and leaf biomass Oecologia (Berlin) 70:187-193. PDF Oren R, Werk KS, Schulze E-D. 1986. Relationship between foliage and conducting xylem in Picea abies (L.) Karst Trees 1:61-69. PDF Oren R, Thies WG, Waring RH. 1985. Tree vigor and stand growth of Douglas-fir as influenced by laminated root rot Canadian Journal of Forest Research 15:985-988. PDF Larsson S, Oren R, Waring RH, Barrett JW. 1983. Attacks of mountain pine beetles as related to tree vigor of ponderosa pine Forest Science 29:395-402. PDF Waring RH, Schroeder PE and R Oren. 1982. Application of the pipe model theory to predict canopy leaf area. Canadian Journal of Forest Resources 12:556-560. PDF |
