Ram Oren

32.9k total citations · 8 hit papers
228 papers, 22.3k citations indexed

About

Ram Oren is a scholar working on Global and Planetary Change, Plant Science and Atmospheric Science. According to data from OpenAlex, Ram Oren has authored 228 papers receiving a total of 22.3k indexed citations (citations by other indexed papers that have themselves been cited), including 185 papers in Global and Planetary Change, 101 papers in Plant Science and 93 papers in Atmospheric Science. Recurrent topics in Ram Oren's work include Plant Water Relations and Carbon Dynamics (174 papers), Tree-ring climate responses (82 papers) and Plant responses to elevated CO2 (67 papers). Ram Oren is often cited by papers focused on Plant Water Relations and Carbon Dynamics (174 papers), Tree-ring climate responses (82 papers) and Plant responses to elevated CO2 (67 papers). Ram Oren collaborates with scholars based in United States, Sweden and Finland. Ram Oren's co-authors include Gabriel G. Katul, B. E. Ewers, Nathan Phillips, Diane E. Pataki, John S. Sperry, Danielle A. Way, Heather R. McCarthy, Sari Palmroth, David S. Ellsworth and Paul C. Stoy and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Ram Oren

225 papers receiving 21.4k citations

Hit Papers

Progressive Nitrogen Limitation of Ecosystem Responses to... 1999 2026 2008 2017 2004 1999 2001 2005 2002 250 500 750 1000
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Progressive Nitrogen Limitation of Ecosystem Responses to Rising Atmospheric Carbon Dioxide
    2004 1.0k citations Yiqi Luo, Bo Su et al. BioScience profile →
  2. Survey and synthesis of intra‐ and interspecific variation in stomatal sensitivity to vapour pressure deficit
    1999 984 citations Ram Oren, Gabriel G. Katul et al. Plant Cell & Environment profile →
  3. Soil fertility limits carbon sequestration by forest ecosystems in a CO2-enriched atmosphere
    2001 839 citations Ram Oren, David S. Ellsworth et al. profile →
  4. Forest response to elevated CO2is conserved across a broad range of productivity
    2005 786 citations Heather R. McCarthy, Adrien C. Finzi et al. Proceedings of the National Academy of Sciences profile →
  5. Water deficits and hydraulic limits to leaf water supply
    2002 718 citations Ram Oren et al. Plant Cell & Environment profile →
  6. Differential responses to changes in growth temperature between trees from different functional groups and biomes: a review and synthesis of data
    2010 671 citations Danielle A. Way, Ram Oren Tree Physiology profile →
  7. Mechanisms of long-distance dispersal of seeds by wind
    2002 506 citations Gabriel G. Katul, Ram Oren et al. profile →
  8. Evapotranspiration: A process driving mass transport and energy exchange in the soil‐plant‐atmosphere‐climate system
    2012 467 citations Gabriel G. Katul, Ram Oren et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Ram Oren United States 81 16.9k 8.6k 8.1k 6.0k 3.8k 228 22.3k
Frederick C. Meinzer United States 92 18.0k 1.1× 9.3k 1.1× 9.2k 1.1× 8.0k 1.3× 2.5k 0.6× 262 23.2k
P. G. Jarvis United Kingdom 68 14.1k 0.8× 8.8k 1.0× 5.7k 0.7× 4.9k 0.8× 2.6k 0.7× 215 19.6k
Todd E. Dawson United States 83 15.2k 0.9× 8.1k 0.9× 8.6k 1.1× 6.3k 1.1× 3.1k 0.8× 277 26.4k
William T. Pockman United States 50 12.7k 0.7× 5.0k 0.6× 5.9k 0.7× 6.2k 1.0× 2.4k 0.6× 100 17.1k
David D. Breshears United States 66 20.9k 1.2× 5.0k 0.6× 9.8k 1.2× 11.0k 1.8× 3.1k 0.8× 180 28.6k
Paul J. Hanson United States 69 10.3k 0.6× 4.7k 0.6× 4.4k 0.5× 3.6k 0.6× 4.5k 1.2× 226 17.4k
Jon Lloyd Germany 62 12.0k 0.7× 4.6k 0.5× 4.6k 0.6× 3.9k 0.7× 2.8k 0.7× 196 16.9k
Michael L. Goulden United States 70 15.0k 0.9× 3.6k 0.4× 5.7k 0.7× 3.7k 0.6× 2.0k 0.5× 183 20.2k
Nate G. McDowell United States 70 22.7k 1.3× 7.6k 0.9× 11.6k 1.4× 11.1k 1.9× 1.7k 0.4× 211 28.6k
John S. Sperry United States 90 27.2k 1.6× 14.9k 1.7× 13.7k 1.7× 10.3k 1.7× 2.4k 0.6× 141 33.6k

Countries citing papers authored by Ram Oren

Since Specialization
Citations

This map shows the geographic impact of Ram Oren's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ram Oren with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ram Oren more than expected).

Fields of papers citing papers by Ram Oren

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ram Oren. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ram Oren. The network helps show where Ram Oren may publish in the future.

Co-authorship network of co-authors of Ram Oren

This figure shows the co-authorship network connecting the top 25 collaborators of Ram Oren. A scholar is included among the top collaborators of Ram Oren based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ram Oren. Ram Oren is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Domec, Jean‐Christophe, et al.. (2025). Leaf transpiration decreases similarly among five pine species as height increases over stand development. Tree Physiology. 46(3). 1 indexed citations
3.
Ward, Eric J., Ram Oren, Hyun Seok Kim, et al.. (2018). Evapotranspiration and water yield of a pine‐broadleaf forest are not altered by long‐term atmospheric [CO2] enrichment under native or enhanced soil fertility. Global Change Biology. 24(10). 4841–4856. 26 indexed citations
4.
Oishi, A. Christopher, et al.. (2016). Baseliner: An open-source, interactive tool for processing sap flux data from thermal dissipation probes. SoftwareX. 5. 139–143. 95 indexed citations
5.
Way, Danielle A. & Ram Oren. (2010). Differential responses to changes in growth temperature between trees from different functional groups and biomes: a review and synthesis of data. Tree Physiology. 30(6). 669–688. 671 indexed citations breakdown →
6.
Oishi, A. Christopher, Ram Oren, Kimberly A. Novick, Sari Palmroth, & Gabriel G. Katul. (2010). Interannual Invariability of Forest Evapotranspiration and Its Consequence to Water Flow Downstream. Ecosystems. 13(3). 421–436. 139 indexed citations
7.
Domec, Jean‐Christophe, Sari Palmroth, Eric J. Ward, et al.. (2009). Acclimation of leaf hydraulic conductance and stomatal conductance of Pinus taeda (loblolly pine) to long‐term growth in elevated CO2 (free‐air CO2 enrichment) and N‐fertilization. Plant Cell & Environment. 32(11). 1500–1512. 129 indexed citations
8.
Novick, Kimberly A., Ram Oren, Paul C. Stoy, et al.. (2009). The relationship between reference canopy conductance and simplified hydraulic architecture. Advances in Water Resources. 32(6). 809–819. 63 indexed citations
9.
Stoy, Paul C., Gabriel G. Katul, Mario Siqueira, et al.. (2008). Role of vegetation in determining carbon sequestration along ecological succession in the southeastern United States. Global Change Biology. 14(6). 1409–1427. 78 indexed citations
10.
Ward, Eric J., Ram Oren, Bjarni D. Sigurðsson, P. G. Jarvis, & Sune Linder. (2008). Fertilization effects on mean stomatal conductance are mediated through changes in the hydraulic attributes of mature Norway spruce trees. Tree Physiology. 28(4). 579–596. 41 indexed citations
11.
McCarthy, Heather R., Ram Oren, Adrien C. Finzi, et al.. (2007). Temporal dynamics and spatial variability in the enhancement of canopy leaf area under elevated atmospheric CO2. Global Change Biology. 13(12). 2479–2497. 101 indexed citations
12.
Palmroth, Sari, Ram Oren, Heather R. McCarthy, et al.. (2006). Aboveground sink strength in forests controls the allocation of carbon below ground and its [CO 2 ]-induced enhancement. Proceedings of the National Academy of Sciences. 103(51). 19362–19367. 103 indexed citations
13.
Luo, Yiqi, Bo Su, William S. Currie, et al.. (2004). Progressive Nitrogen Limitation of Ecosystem Responses to Rising Atmospheric Carbon Dioxide. BioScience. 54(8). 731–731. 1049 indexed citations breakdown →
14.
Lai, Chun‐Ta, Gabriel G. Katul, John R. Butnor, et al.. (2002). Modelling the limits on the response of net carbon exchange to fertilization in a south‐eastern pine forest. Plant Cell & Environment. 25(9). 1095–1120. 73 indexed citations
15.
Schäfer, K. V., Ram Oren, Chun‐Ta Lai, & Gabriel G. Katul. (2002). Hydrologic balance in an intact temperate forest ecosystem under ambient and elevated atmospheric CO2concentration. Global Change Biology. 8(9). 895–911. 151 indexed citations
16.
Ewers, B. E., Ram Oren, N. Phillips, Monika Strömgren, & Sune Linder. (2001). Mean canopy stomatal conductance responses to water and nutrient availabilities in Picea abies and Pinus taeda. Tree Physiology. 21(12-13). 841–850. 111 indexed citations
17.
Oren, Ram, Nathan Phillips, Gabriel G. Katul, B. E. Ewers, & Diane E. Pataki. (1998). Scaling xylem sap flux and soil water balance and calculating variance: a method for partitioning water flux in forests. Annales des Sciences Forestières. 55(1-2). 191–216. 209 indexed citations
18.
Phillips, Nathan & Ram Oren. (1998). A comparison of daily representations of canopy conductance based on two conditional time-averaging methods and the dependence of daily conductance on environmental factors. Annales des Sciences Forestières. 55(1-2). 217–235. 164 indexed citations
19.
Phillips, Nathan, Abhijit Nagchaudhuri, Ram Oren, & Gabriel G. Katul. (1997). Time constant for water transport in loblolly pine trees estimated from time series of evaporative demand and stem sapflow. Trees. 11(7). 412–412. 162 indexed citations
20.
Oßwald, W., Horst Senger, & Ram Oren. (1990). Comparison of the ascorbic acid, glutathione, sugar and ion contents of healthy and damaged Norway spruce at Laugna, northwest of Augsburg.. Forstwissenschaftliches Centralblatt. 109(4). 181–189. 4 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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