| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Plant Science and Agronomy | 57 | 1480 | 1358 | 10 | 8 | 143 | 9461 |
The chart shows the history of publications by Heljä-Sisko Helmisaari between 1989 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Heljä-Sisko Helmisaari published across 37 years, from 1989 to 2025, averaging 5.1 papers a year. Output peaked at 18 publications in 2003. 5 of the 190 publications appeared in the last two years.
190 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1989 | 2 |
| 1990 | 1 |
| 1991 | 0 |
| 1992 | 3 |
| 1993 | 1 |
| 1994 | 4 |
| 1995 | 5 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 5 |
| 1999 | 8 |
| 2000 | 10 |
| 2001 | 3 |
| 2002 | 3 |
| 2003 | 18 |
| 2004 | 3 |
| 2005 | 4 |
| 2006 | 5 |
| 2007 | 10 |
| 2008 | 7 |
| 2009 | 11 |
| 2010 | 5 |
| 2011 | 5 |
| 2012 | 8 |
| 2013 | 12 |
| 2014 | 5 |
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 0 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 3 |
| Total | 190 |
The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Heljä-Sisko Helmisaari sits on this spectrum.
This scientist: 143 publications — 54th percentile
54% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 467 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 36–40 | 2 | |
| 41–45 | 7 | |
| 46–50 | 40 | |
| 51–55 | 58 | |
| 56–60 | 60 | |
| 61–65 | 107 | |
| 66–70 | 130 | |
| 71–75 | 153 | |
| 76–80 | 191 | |
| 81–85 | 199 | |
| 86–90 | 206 | |
| 91–95 | 218 | |
| 96–100 | 226 | |
| 101–105 | 227 | |
| 106–110 | 247 | |
| 111–115 | 255 | |
| 116–120 | 253 | |
| 121–125 | 233 | |
| 126–130 | 219 | |
| 131–135 | 201 | |
| 136–140 | 194 | |
| 141–145 | 176 | 143 |
| 146–150 | 157 | |
| 151–155 | 147 | |
| 156–160 | 151 | |
| 161–165 | 159 | |
| 166–170 | 137 | |
| 171–175 | 128 | |
| 176–180 | 126 | |
| 181–185 | 98 | |
| 186–190 | 114 | |
| 191–195 | 100 | |
| 196–200 | 90 | |
| 201–205 | 71 | |
| 206–210 | 98 | |
| 211–215 | 70 | |
| 216–220 | 86 | |
| 221–225 | 61 | |
| 226–230 | 58 | |
| 231–235 | 53 | |
| 236–240 | 64 | |
| 241–245 | 39 | |
| 246–250 | 46 | |
| 251–255 | 51 | |
| 256–260 | 36 | |
| 261–265 | 44 | |
| 266–270 | 35 | |
| 271–275 | 30 | |
| 276–280 | 33 | |
| 281–285 | 35 | |
| 286–290 | 36 | |
| 291–295 | 26 | |
| 296–300 | 26 | |
| 301–305 | 31 | |
| 306–310 | 30 | |
| 311–315 | 21 | |
| 316–320 | 29 | |
| 321–325 | 14 | |
| 326–330 | 15 | |
| 331–335 | 15 | |
| 336–340 | 17 | |
| 341–345 | 15 | |
| 346–350 | 12 | |
| 351–355 | 17 | |
| 356–360 | 18 | |
| 361–365 | 12 | |
| 366–370 | 11 | |
| 371–375 | 6 | |
| 376–380 | 6 | |
| 381–385 | 11 | |
| 386–390 | 9 | |
| 391–395 | 10 | |
| 396–400 | 8 | |
| 401–405 | 4 | |
| 406–410 | 9 | |
| 411–415 | 11 | |
| 416–420 | 4 | |
| 421–425 | 7 | |
| 426–430 | 4 | |
| 431–435 | 3 | |
| 436–440 | 5 | |
| 441–445 | 8 | |
| 446–450 | 6 | |
| 451–455 | 7 | |
| 456–460 | 5 | |
| 461–465 | 6 | |
| 466 | 2 | |
| 467+ | 99 |
The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Heljä-Sisko Helmisaari sits on this spectrum.
This scientist: 57 D-Index — 78th percentile
78% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 109 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30 | 200 | |
| 31 | 236 | |
| 32 | 253 | |
| 33 | 283 | |
| 34 | 288 | |
| 35 | 240 | |
| 36 | 246 | |
| 37 | 243 | |
| 38 | 247 | |
| 39 | 229 | |
| 40 | 232 | |
| 41 | 230 | |
| 42 | 228 | |
| 43 | 219 | |
| 44 | 193 | |
| 45 | 164 | |
| 46 | 158 | |
| 47 | 143 | |
| 48 | 131 | |
| 49 | 127 | |
| 50 | 122 | |
| 51 | 122 | |
| 52 | 110 | |
| 53 | 102 | |
| 54 | 98 | |
| 55 | 79 | |
| 56 | 85 | |
| 57 | 88 | 57 |
| 58 | 91 | |
| 59 | 62 | |
| 60 | 61 | |
| 61 | 59 | |
| 62 | 54 | |
| 63 | 61 | |
| 64 | 59 | |
| 65 | 58 | |
| 66 | 41 | |
| 67 | 49 | |
| 68 | 39 | |
| 69 | 32 | |
| 70 | 40 | |
| 71 | 47 | |
| 72 | 38 | |
| 73 | 28 | |
| 74 | 29 | |
| 75 | 28 | |
| 76 | 22 | |
| 77 | 21 | |
| 78 | 25 | |
| 79 | 26 | |
| 80 | 19 | |
| 81 | 16 | |
| 82 | 12 | |
| 83 | 16 | |
| 84 | 14 | |
| 85 | 11 | |
| 86 | 17 | |
| 87 | 13 | |
| 88 | 10 | |
| 89 | 12 | |
| 90 | 18 | |
| 91 | 16 | |
| 92 | 16 | |
| 93 | 17 | |
| 94 | 12 | |
| 95 | 8 | |
| 96 | 9 | |
| 97 | 9 | |
| 98 | 11 | |
| 99 | 12 | |
| 100 | 5 | |
| 101 | 8 | |
| 102 | 4 | |
| 103 | 11 | |
| 104 | 5 | |
| 105 | 9 | |
| 106 | 7 | |
| 107 | 4 | |
| 108 | 8 | |
| 109+ | 99 |
Heljä-Sisko Helmisaari is affiliated with the University of Helsinki in Finland and conducts research primarily in the fields of Environmental Science and Agricultural and Biological Sciences. Their work focuses on understanding processes related to soil carbon and nitrogen dynamics, forest ecology and biodiversity, as well as peatlands and wetlands ecology.
Helmisaari's research spans topics including:
Their recent publications include:
Helmisaari frequently publishes in the following venues:
Collaboration has been a notable aspect of their career, with frequent co-authors including:
M. Luke McCormack;Ian A. Dickie;David M. Eissenstat;Timothy J. Fahey
Heljä-Sisko Helmisaari;Kirsi Makkonen;Seppo Kellomäki;Esko Valtonen
Heljä-Sisko Helmisaari;John Derome;Pekka Nöjd;Mikko Kukkola
Cindy E. Prescott;Sue J. Grayston;Heljä Sisko Helmisaari;Eva Kaštovská
L. Finér;H.-S. Helmisaari;K. Lõhmus;H. Majdi
Heljä-Sisko Helmisaari;Kjersti Holt Hanssen;Staffan Jacobson;Mikko Kukkola
Ivano Brunner;Mark R Bakker;Mark R Bakker;Robert G Björk;Yasuhiro Hirano
I. Stupak;A. Asikainen;M. Jonsell;E. Karltun
Ivika Ostonen;Heljä-Sisko Helmisaari;Werner Borken;Leho Tedersoo;Leho Tedersoo
Ivika Ostonen;Krista Lõhmus;Heljä-Sisko Helmisaari;Jaak Truu
Heljä-Sisko Helmisaari
Kirsi Makkonen;Heljä-Sisko Helmisaari
Michael Starr;Anna Saarsalmi;Tatu Hokkanen;Päivi Merilä
Kirsi Makkonen;Heljä-Sisko Helmisaari
Maija Salemaa;John Derome;Heljä-Sisko Helmisaari;Tiina Nieminen
Heljä-Sisko Helmisaari
Kirsi Makkonen;Heljä-Sisko Helmisaari
Ivika Ostonen;Marika Truu;Heljä‐Sisko Helmisaari;Martin Lukac;Martin Lukac
Heljä-Sisko Helmisaari
Heljä‐Sisko Helmisaari
Annikki Makela;Harry T. Valentine;Helja-Sisko Helmisaari
Brian D. Titus;Kevin Brown;Heljä Sisko Helmisaari;Elena Vanguelova
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