C. J. Koopmans

856 total citations · 1 hit paper
7 papers, 696 citations indexed

About

C. J. Koopmans is a scholar working on Environmental Chemistry, Soil Science and Ecology. According to data from OpenAlex, C. J. Koopmans has authored 7 papers receiving a total of 696 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Environmental Chemistry, 6 papers in Soil Science and 4 papers in Ecology. Recurrent topics in C. J. Koopmans's work include Soil Carbon and Nitrogen Dynamics (6 papers), Soil and Water Nutrient Dynamics (6 papers) and Peatlands and Wetlands Ecology (3 papers). C. J. Koopmans is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (6 papers), Soil and Water Nutrient Dynamics (6 papers) and Peatlands and Wetlands Ecology (3 papers). C. J. Koopmans collaborates with scholars based in Netherlands and United Kingdom. C. J. Koopmans's co-authors include Albert Tietema, Bridget A. Emmett, O. Janne Kjønaas, Per Gundersen, J.M. Verstraten, D. van Dam, A.W. Boxman, P.E.G. Leonards, M.H. Lamoree and Jacco Koekkoek and has published in prestigious journals such as Soil Biology and Biochemistry, Oecologia and Plant and Soil.

In The Last Decade

C. J. Koopmans

6 papers receiving 646 citations

Hit 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.

Impact of nitrogen deposition on nitrogen cycling in forests: a synthesis of NITREX data

1998 511 citations Per Gundersen, Bridget A. Emmett et al. Forest Ecology and Management profile →

Peers

C. J. Koopmans

SS

EC

ECOLO

GPC

PS

Kai Blanck Germany

Wim W. Wessel Netherlands

Martha R. Downs United States

P.A. Coward United Kingdom

C. B. Fuss United States

Zhichun Zhao China

Rieko Urakawa Japan

Jürg B. Bucher Switzerland

Aaron M. Wall New Zealand

Kong Guohui China

Kai Blanck Germany

C. J. Koopmans

402 ×0.8

SS

305 ×0.7

EC

337 ×0.8

ECOLO

166 ×1.4

GPC

170 ×1.7

PS

Citations per year, relative to C. J. Koopmans C. J. Koopmans (= 1×) peers Kai Blanck

Countries citing papers authored by C. J. Koopmans

Since Specialization

Citations

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

Fields of papers citing papers by C. J. Koopmans

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by C. J. Koopmans. 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 C. J. Koopmans. The network helps show where C. J. Koopmans may publish in the future.

Co-authorship network of co-authors of C. J. Koopmans

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

All Works

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7 of 7 papers shown

1.

Koopmans, C. J., et al.. (2021). Expanding the H295R steroidogenic assay using LC-MS/MS and an ER-alpha reporter gene assay as read-outs using azole fungicides as test compounds. Toxicology Letters. 350. S65–S66.

2.

Koopmans, C. J., Albert Tietema, & J.M. Verstraten. (1998). Effects of reduced N deposition on litter decomposition and N cycling in two N saturated forests in The Netherlands. Soil Biology and Biochemistry. 30(2). 141–151. 22 indexed citations

3.

Gundersen, Per, Bridget A. Emmett, O. Janne Kjønaas, C. J. Koopmans, & Albert Tietema. (1998). Impact of nitrogen deposition on nitrogen cycling in forests: a synthesis of NITREX data. Forest Ecology and Management. 101(1-3). 37–55. 511 indexed citations breakdown →

4.

Koopmans, C. J. & D. van Dam. (1998). Modelling the Impact of Lowered Atmospheric Nitrogen Deposition on a Nitrogen Saturated Forest Ecosystem. Water Air & Soil Pollution. 104(1-2). 181–203. 7 indexed citations

5.

Koopmans, C. J., D. van Dam, Albert Tietema, & J.M. Verstraten. (1997). Natural 15 N abundance in two nitrogen saturated forest ecosystems. Oecologia. 111(4). 470–480. 65 indexed citations

6.

Koopmans, C. J., Albert Tietema, & A.W. Boxman. (1996). The fate of15N enriched throughfall in two coniferous forest stands at different nitrogen deposition levels. Biogeochemistry. 34(1). 19–44. 49 indexed citations

7.

Koopmans, C. J., et al.. (1995). Nitrogen transformations in two nitrogen saturated forest ecosystems subjected to an experimental decrease in nitrogen deposition. Plant and Soil. 175(2). 205–218. 42 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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