Chris Freeman

16.3k total citations · 7 hit papers
134 papers, 10.4k citations indexed

About

Chris Freeman is a scholar working on Ecology, Environmental Chemistry and Plant Science. According to data from OpenAlex, Chris Freeman has authored 134 papers receiving a total of 10.4k indexed citations (citations by other indexed papers that have themselves been cited), including 109 papers in Ecology, 36 papers in Environmental Chemistry and 30 papers in Plant Science. Recurrent topics in Chris Freeman's work include Peatlands and Wetlands Ecology (106 papers), Coastal wetland ecosystem dynamics (74 papers) and Soil and Water Nutrient Dynamics (28 papers). Chris Freeman is often cited by papers focused on Peatlands and Wetlands Ecology (106 papers), Coastal wetland ecosystem dynamics (74 papers) and Soil and Water Nutrient Dynamics (28 papers). Chris Freeman collaborates with scholars based in United Kingdom, China and South Korea. Chris Freeman's co-authors include Nick Ostle, Nathalie Fenner, Hojeong Kang, B. Reynolds, Chris Evans, Richard D. Bardgett, Maurice A. Lock, Don Monteith, Juul Limpens and J.A. Hudson and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Nature Communications.

In The Last Decade

Chris Freeman

133 papers receiving 10.0k citations

Hit Papers

5 papers align trajectories

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.

An enzymic 'latch' on a global carbon store

2001 983 citations Chris Freeman, Hojeong Kang et al. profile →
Export of organic carbon from peat soils

2001 827 citations Chris Freeman, Chris Evans et al. profile →
Microbial contributions to climate change through carbon cycle feedbacks

2008 813 citations Chris Freeman et al. profile →
Peatlands and the carbon cycle: from local processes to global implications – a synthesis

2008 724 citations Juul Limpens, Frank Berendse et al. Biogeosciences profile →
Export of dissolved organic carbon from peatlands under elevated carbon dioxide levels

2004 538 citations Chris Freeman, Nathalie Fenner et al. profile →
Drought-induced carbon loss in peatlands

2011 518 citations Nathalie Fenner, Chris Freeman profile →
Global methane and nitrous oxide emissions from inland waters and estuaries

2022 112 citations Chris Freeman et al. Global Change Biology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Chris Freeman United Kingdom	43	7.2k	2.4k	2.4k	2.2k	1.7k	134	10.4k
Jan G. M. Roelofs Netherlands	56	6.1k 0.8×	3.3k 1.4×	1.6k 0.7×	3.2k 1.4×	1.0k 0.6×	186	10.3k
J. Patrick Megonigal United States	58	9.3k 1.3×	1.8k 0.7×	2.1k 0.9×	2.2k 1.0×	2.4k 1.4×	182	13.4k
Scott D. Bridgham United States	48	6.1k 0.8×	2.1k 0.9×	1.4k 0.6×	1.8k 0.8×	1.8k 1.1×	138	8.6k
Leon P. M. Lamers Netherlands	49	5.7k 0.8×	2.1k 0.9×	744 0.3×	1.7k 0.8×	760 0.4×	192	8.6k
Xiaofeng Xu United States	46	3.5k 0.5×	1.8k 0.7×	3.1k 1.3×	1.2k 0.6×	1.3k 0.8×	187	8.7k
Anne E. Giblin United States	53	6.2k 0.9×	3.0k 1.2×	1.7k 0.7×	1.1k 0.5×	3.4k 2.0×	134	11.8k
Kate Lajtha United States	56	4.4k 0.6×	3.7k 1.6×	5.4k 2.3×	1.4k 0.6×	964 0.6×	161	10.8k
Curtis J. Richardson United States	54	4.8k 0.7×	2.5k 1.0×	1.3k 0.5×	1.2k 0.5×	723 0.4×	163	8.7k
Nancy B. Dise United Kingdom	41	4.2k 0.6×	2.2k 0.9×	2.5k 1.1×	2.0k 0.9×	1.5k 0.9×	102	8.2k
Hojeong Kang South Korea	41	3.6k 0.5×	1.4k 0.6×	1.7k 0.7×	1.3k 0.6×	721 0.4×	190	6.7k

Countries citing papers authored by Chris Freeman

Since Specialization

Citations

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

Fields of papers citing papers by Chris Freeman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Chris Freeman

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Li, Junjie, Junji Yuan, Philippe Ciais, et al.. (2025). Two decades of improved wetland carbon sequestration in northern mid-to-high latitudes are offset by tropical and southern declines. Nature Ecology & Evolution. 9(10). 1861–1872. 2 indexed citations

Qin, Lei, Wei Tian, Chris Freeman, et al.. (2024). Changes in bacterial communities during rice cultivation remove phenolic constraints on peatland carbon preservation. ISME Communications. 4(1). ycae022–ycae022. 6 indexed citations

Qin, Lei, Yuanchun Zou, Chris Freeman, et al.. (2024). Deciphering soil environmental regulation on reassembly of the soil bacterial community during wetland restoration. The Science of The Total Environment. 954. 176586–176586. 2 indexed citations

Gao, Chuanyu, Guoping Wang, Jinxin Cong, et al.. (2023). High intensity fire accelerates accumulation of a stable carbon pool in permafrost peatlands under climate warming. CATENA. 227. 107108–107108. 9 indexed citations

Li, Junjie, Junji Yuan, Deyan Liu, et al.. (2023). Climatic zone effects of non-native plant invasion on CH4 and N2O emissions from natural wetland ecosystems. The Science of The Total Environment. 906. 167855–167855. 10 indexed citations

Lee, Jaehyun, Yerang Yang, Ji Young Jung, et al.. (2023). Attenuation of Methane Oxidation by Nitrogen Availability in Arctic Tundra Soils. Environmental Science & Technology. 57(6). 2647–2659. 14 indexed citations

Shen, Xiangjin, Miaogen Shen, Chaoyang Wu, et al.. (2023). Critical role of water conditions in the responses of autumn phenology of marsh wetlands to climate change on the Tibetan Plateau. Global Change Biology. 30(1). e17097–e17097. 29 indexed citations

Li, Junjie, Junji Yuan, YanHong Dong, et al.. (2022). Non‐native plant invasion can accelerate global climate change by increasing wetland methane and terrestrial nitrous oxide emissions. Global Change Biology. 28(18). 5453–5468. 45 indexed citations

Fenner, Nathalie, et al.. (2021). Effects of Climate Change on Peatland Reservoirs: A DOC Perspective. Global Biogeochemical Cycles. 35(7). 14 indexed citations

10.

Fenner, Nathalie & Chris Freeman. (2020). Woody litter protects peat carbon stocks during drought. Nature Climate Change. 10(4). 363–369. 76 indexed citations

11.

Yuan, Junji, Jian Xiang, Deyan Liu, et al.. (2019). Rapid growth in greenhouse gas emissions from the adoption of industrial-scale aquaculture. Nature Climate Change. 9(4). 318–322. 206 indexed citations

12.

Peacock, Mike, Tim G. Jones, Martyn N. Futter, et al.. (2018). Peatland ditch blocking has no effect on dissolved organic matter (DOM) quality. Hydrological Processes. 32(26). 3891–3906. 16 indexed citations

13.

Kang, Hojeong, et al.. (2010). Global Increases in Dissolved Organic Carbon in Rivers and Their Implications. Journal of Ecology and Environment. 43(4). 453–458. 3 indexed citations

14.

House, Joanna I., Harriet G. Orr, Joanna M. Clark, et al.. (2010). Climate change and the British Uplands: evidence for decision-making. Climate Research. 45. 3–12. 18 indexed citations

15.

Limpens, Juul, Frank Berendse, Josep G. Canadell, et al.. (2008). Peatlands and the carbon cycle: from local processes to global implications – a synthesis. Biogeosciences. 5(5). 1475–1491. 724 indexed citations breakdown →

16.

Fenner, Nathalie, et al.. (2006). A novel approach to studying the effects of temperature on soil biogeochemistry using a thermal gradient bar. Soil Use and Management. 22(3). 267–273. 7 indexed citations

17.

Freeman, Chris, Seon‐Young Kim, Seung‐Hoon Lee, & Hojeong Kang. (2004). Effects of elevated atmospheric CO2 concentrations on soil microorganisms.. PubMed. 42(4). 267–77. 39 indexed citations

18.

Freeman, Chris, Seon‐Young Kim, & Hojeong Kang. (2002). Variations of DOC and Phenolics in Pore-water of Peatlands. Journal of Ecology and Environment. 35(4). 306–311. 4 indexed citations

19.

Kang, Hojeong & Chris Freeman. (2002). The Influence of Hydrochemistry on Methane Emissions from Two Contrasting Northern Wetlands. Water Air & Soil Pollution. 141(1-4). 263–272. 27 indexed citations

20.

Kang, Hanqing, Chris Freeman, & Bridget A. Emmett. (1997). Effects of long-term nitrogen addition on soil enzyme activities in a sitka spruce forest. International Journal of Ecology and Environmental Sciences. 23(1). 75–80. 5 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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