John Helfrich

1.6k total citations
8 papers, 1.1k citations indexed

About

John Helfrich is a scholar working on Global and Planetary Change, Soil Science and Ecology. According to data from OpenAlex, John Helfrich has authored 8 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Global and Planetary Change, 4 papers in Soil Science and 2 papers in Ecology. Recurrent topics in John Helfrich's work include Soil Carbon and Nitrogen Dynamics (4 papers), Atmospheric and Environmental Gas Dynamics (4 papers) and Plant Water Relations and Carbon Dynamics (4 papers). John Helfrich is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (4 papers), Atmospheric and Environmental Gas Dynamics (4 papers) and Plant Water Relations and Carbon Dynamics (4 papers). John Helfrich collaborates with scholars based in United States. John Helfrich's co-authors include Jerry M. Melillo, A. David McGuire, David W. Kicklighter, Hanqin Tian, Berrien Moore, Charles J Vörösmarty, John E. Hobbie, Xiangming Xiao, Yude Pan and Annette L. Schloss and has published in prestigious journals such as Nature, Ecology and Global Biogeochemical Cycles.

In The Last Decade

John Helfrich

8 papers receiving 990 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John Helfrich United States	7	626	451	272	259	182	8	1.1k
Ken Rutchey United States	16	398 0.6×	870 1.9×	207 0.8×	194 0.7×	143 0.8×	19	1.1k
Thomas V. Armentano United States	12	307 0.5×	622 1.4×	130 0.5×	214 0.8×	101 0.6×	31	922
A. Kamnalrut Thailand	3	651 1.0×	379 0.8×	177 0.7×	176 0.7×	156 0.9×	5	1.1k
Elizabeth R. Blood United States	14	254 0.4×	551 1.2×	199 0.7×	163 0.6×	105 0.6×	25	966
Jaclyn Hatala Matthes United States	17	723 1.2×	522 1.2×	191 0.7×	196 0.8×	70 0.4×	33	1.1k
V. Engel United States	18	387 0.6×	468 1.0×	110 0.4×	260 1.0×	127 0.7×	33	985
T. Kirchner United States	2	592 0.9×	346 0.8×	155 0.6×	169 0.7×	149 0.8×	2	1.0k
Jenneke M. Visser United States	22	317 0.5×	948 2.1×	183 0.7×	185 0.7×	81 0.4×	44	1.2k
R. McKeown United States	3	454 0.7×	410 0.9×	139 0.5×	242 0.9×	125 0.7×	4	1.0k
Tamara Heartsill Scalley United States	14	606 1.0×	443 1.0×	388 1.4×	163 0.6×	65 0.4×	37	1.1k

Countries citing papers authored by John Helfrich

Since Specialization

Citations

This map shows the geographic impact of John Helfrich'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 John Helfrich with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John Helfrich more than expected).

Fields of papers citing papers by John Helfrich

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Helfrich. 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 John Helfrich. The network helps show where John Helfrich may publish in the future.

Co-authorship network of co-authors of John Helfrich

This figure shows the co-authorship network connecting the top 25 collaborators of John Helfrich. A scholar is included among the top collaborators of John Helfrich 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 John Helfrich. John Helfrich is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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8 of 8 papers shown

1.

Tian, Hanqin, Jerry M. Melillo, D. W. Kicklighter, et al.. (2000). Climatic and biotic controls on annual carbon storage in Amazonian ecosystems. Global Ecology and Biogeography. 9(4). 315–335. 89 indexed citations

2.

Tian, Hanqin, Jerry M. Melillo, David W. Kicklighter, A. David McGuire, & John Helfrich. (1999). The sensitivity of terrestrial carbon storage to historical climate variability and atmospheric CO<sub>2</sub> in the United States. Tellus B. 51(2). 414–414. 153 indexed citations

3.

Tian, Hanqin, Jerry M. Melillo, David W. Kicklighter, et al.. (1998). Effect of interannual climate variability on carbon storage in Amazonian ecosystems. Nature. 396(6712). 664–667. 359 indexed citations

4.

McGuire, A. David, Jerry M. Melillo, David W. Kicklighter, et al.. (1997). Equilibrium responses of global net primary production and carbon storage to doubled atmospheric carbon dioxide: Sensitivity to changes in vegetation nitrogen concentration. Global Biogeochemical Cycles. 11(2). 173–189. 158 indexed citations

5.

Xiao, Xiangming, Jerry M. Melillo, David W. Kicklighter, et al.. (1996). Net primary production of terrestrial ecosystems in China and its equilibrium response to changes in climate and atmospheric CO₂ concentration. 33 indexed citations

6.

Peterson, Bruce J., Linda A. Deegan, John Helfrich, et al.. (1993). Biological Responses of a Tundra River to Fertilization. Ecology. 74(3). 653–672. 266 indexed citations

7.

Wakeham, Stuart G., et al.. (1985). The biogeochemistry of toluene in coastal seawater: radiotracer experiments in controlled ecosystems. Biogeochemistry. 1(4). 307–328. 4 indexed citations

8.

Hobbie, John E., et al.. (1983). Effect of litter nitrogen on decomposition and microbial biomass inSpartina alterniflora. Microbial Ecology. 9(1). 27–40. 49 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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