R. Maarit Niemi

2.3k total citations
43 papers, 1.8k citations indexed

About

R. Maarit Niemi is a scholar working on Ecology, Soil Science and Water Science and Technology. According to data from OpenAlex, R. Maarit Niemi has authored 43 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Ecology, 12 papers in Soil Science and 12 papers in Water Science and Technology. Recurrent topics in R. Maarit Niemi's work include Soil Carbon and Nitrogen Dynamics (12 papers), Fecal contamination and water quality (11 papers) and Microbial Community Ecology and Physiology (7 papers). R. Maarit Niemi is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (12 papers), Fecal contamination and water quality (11 papers) and Microbial Community Ecology and Physiology (7 papers). R. Maarit Niemi collaborates with scholars based in Finland, Australia and United Kingdom. R. Maarit Niemi's co-authors include Kaisa Wallenius, Milja Vepsäläinen, Ilse Heiskanen, Kristina Lindström, Jorma Niemi, Kaarina Sivonen, Sanna Kukkonen, Jarkko Rapala, Mauritz Vestberg and H. Rita and has published in prestigious journals such as Applied and Environmental Microbiology, Water Research and Journal of Hazardous Materials.

In The Last Decade

R. Maarit Niemi

40 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
R. Maarit Niemi Finland	22	623	456	440	410	272	43	1.8k
Mary C. Savin United States	26	621 1.0×	255 0.6×	709 1.6×	379 0.9×	226 0.8×	89	1.7k
Anne Winding Denmark	32	978 1.6×	368 0.8×	589 1.3×	544 1.3×	511 1.9×	66	2.5k
Anders Priemé Denmark	29	1.3k 2.1×	440 1.0×	801 1.8×	380 0.9×	519 1.9×	75	2.6k
Dinku M. Endale United States	27	481 0.8×	674 1.5×	1.1k 2.5×	433 1.1×	146 0.5×	76	2.2k
Regin Rønn Denmark	30	1.0k 1.7×	214 0.5×	690 1.6×	739 1.8×	548 2.0×	63	2.4k
Samira H. Daroub United States	21	1.2k 1.9×	521 1.1×	621 1.4×	633 1.5×	673 2.5×	72	2.6k
Didier L. Baho Sweden	13	869 1.4×	250 0.5×	187 0.4×	185 0.5×	446 1.6×	21	1.7k
Xiaojie Li China	21	382 0.6×	276 0.6×	407 0.9×	269 0.7×	73 0.3×	74	1.5k
Marirosa Molina United States	23	470 0.8×	165 0.4×	309 0.7×	185 0.5×	163 0.6×	55	1.7k
Benjamin J. Koch United States	25	1.5k 2.4×	335 0.7×	725 1.6×	344 0.8×	578 2.1×	47	2.5k

Countries citing papers authored by R. Maarit Niemi

Since Specialization

Citations

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

Fields of papers citing papers by R. Maarit Niemi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. Maarit Niemi. 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 R. Maarit Niemi. The network helps show where R. Maarit Niemi may publish in the future.

Co-authorship network of co-authors of R. Maarit Niemi

This figure shows the co-authorship network connecting the top 25 collaborators of R. Maarit Niemi. A scholar is included among the top collaborators of R. Maarit Niemi 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 R. Maarit Niemi. R. Maarit Niemi 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

1.

Vanhala, Pekka, Anu Kapanen, Hannu Fritze, & R. Maarit Niemi. (2024). Microbial activity and biomass in four Finnish coniferous forest soils — spatial variability and effect of heavy metals. Boreal environment research. 3(3). 287–295.

2.

Beaz‐Hidalgo, Roxana, Jahangir Hossain, Katri A. Berg, et al.. (2015). Aeromonas aquatica sp. nov., Aeromonas finlandiensis sp. nov. and Aeromonas lacus sp. nov. isolated from Finnish waters associated with cyanobacterial blooms. Systematic and Applied Microbiology. 38(3). 161–168. 41 indexed citations

3.

Straková, Petra, R. Maarit Niemi, Christopher Freeman, et al.. (2011). Litter type affects the activity of aerobic decomposers in a boreal peatland more than site nutrient and water table regimes. Biogeosciences. 8(9). 2741–2755. 75 indexed citations

4.

Straková, Petra, R. Maarit Niemi, Christopher Freeman, et al.. (2011). Litter type affects the activity of aerobic decomposers in a boreal peatland more than site nutrient and water level regimes. 4 indexed citations

5.

Heinonsalo, Jussi, R. Maarit Niemi, Suvi Simpanen, et al.. (2011). Filter centrifugation as a sampling method for miniaturization of extracellular fungal enzyme activity measurements in solid media. Fungal ecology. 5(2). 261–269. 21 indexed citations

6.

Wallenius, Kaisa, et al.. (2010). Sample storage for soil enzyme activity and bacterial community profiles. Journal of Microbiological Methods. 81(1). 48–55. 86 indexed citations

7.

Niemi, R. Maarit, Ilse Heiskanen, R. Heine, & Jarkko Rapala. (2009). Previously uncultured β-Proteobacteria dominate in biologically active granular activated carbon (BAC) filters. Water Research. 43(20). 5075–5086. 60 indexed citations

8.

Martin, Derek, et al.. (2008). Acetate and ethanol as potential enhancers of low temperature denitrification in soil contaminated by fur farms: A pilot-scale study. Journal of Hazardous Materials. 163(2-3). 1230–1238. 25 indexed citations

9.

Niemi, R. Maarit, Milja Vepsäläinen, Kaisa Wallenius, et al.. (2005). Temporal and soil depth-related variation in soil enzyme activities and in root growth of red clover (Trifolium pratense) and timothy (Phleum pratense) in the field. Applied Soil Ecology. 30(2). 113–125. 50 indexed citations

10.

Niemi, R. Maarit & Milja Vepsäläinen. (2004). Stability of the fluorogenic enzyme substrates and pH optima of enzyme activities in different Finnish soils. Journal of Microbiological Methods. 60(2). 195–205. 70 indexed citations

11.

Niemi, R. Maarit, Matti Heikkilä, Kirsti Lahti, Seija Kalso, & Seppo I. Niemelä. (2001). Comparison of methods for determining the numbers and species distribution of coliform bacteria in well water samples. Journal of Applied Microbiology. 90(6). 850–858. 24 indexed citations

12.

Niemi, R. Maarit, Ilse Heiskanen, Kaisa Wallenius, & Kristina Lindström. (2001). Extraction and purification of DNA in rhizosphere soil samples for PCR-DGGE analysis of bacterial consortia. Journal of Microbiological Methods. 45(3). 155–165. 155 indexed citations

13.

Nick, Giselle, Bart Hoste, R. Maarit Niemi, et al.. (1999). Rhizobia Isolated from Root Nodules of Tropical Leguminous Trees Characterized Using DNA-DNA dot-blot Hybridisation and rep-PCR Genomic Fingerprinting. Systematic and Applied Microbiology. 22(2). 287–299. 73 indexed citations

14.

Vahala, Riku, et al.. (1998). The Effects of Nutrients on Natural Organic Matter (NOM) Removal in Biological Activated Carbon (BAC) Filtration. Acta hydrochimica et hydrobiologica. 26(3). 196–199. 11 indexed citations

15.

Niemi, Jorma, et al.. (1997). Bacteriological Purification of the Finnish River Kymi. Environmental Monitoring and Assessment. 46(3). 241–253. 7 indexed citations

16.

Niemi, Jorma, et al.. (1997). Bacteriological quality of Finnish rivers and lakes. Environmental Toxicology and Water Quality. 12(1). 15–21. 4 indexed citations

17.

Niemi, R. Maarit & Jukka Ahtiainen. (1995). Enumeration of intestinal enterococci and interfering organisms with Slanetz-Bartley agar, KF streptococcus agar and the MUST method. Letters in Applied Microbiology. 20(2). 92–97. 18 indexed citations

18.

Niemi, R. Maarit & Seppo I. Niemelä. (1994). Growth of Enterococcus, Lactococcus and Streptococcus strains and environmental isolates in liquid media and their reactions on BEEA. International Journal of Food Microbiology. 23(1). 71–78. 6 indexed citations

19.

Sivonen, Kaarina, et al.. (1990). Toxic cyanobacteria (blue-green algae) in Finnish fresh and coastal waters. Hydrobiologia. 190(3). 267–275. 224 indexed citations

20.

Niemi, R. Maarit & Jorma Niemi. (1990). Monitoring of fecal indicators in rivers on the basis of random sampling and percentiles. Water Air & Soil Pollution. 50(3-4). 331–342. 8 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.

Explore authors with similar magnitude of impact