| Discipline name | D-Index | World Ranking | Current World Ranking | National Ranking | Current National Ranking | Publications | Citations |
|---|---|---|---|---|---|---|---|
| Environmental Sciences | 71 | 1615 | 1537 | 74 | 72 | 1337 | 16155 |
The chart shows the history of publications by R. J. Gilkes between 1968 and 2024, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. R. J. Gilkes published across 57 years, from 1968 to 2024, averaging 5.7 papers a year. Output peaked at 17 publications in 1992. 2 of the 327 publications appeared in the last two years.
327 publications in total across all disciplines
| Year | Publications |
|---|---|
| 1968 | 1 |
| 1969 | 0 |
| 1970 | 0 |
| 1971 | 1 |
| 1972 | 2 |
| 1973 | 2 |
| 1974 | 1 |
| 1975 | 0 |
| 1976 | 2 |
| 1977 | 4 |
| 1978 | 4 |
| 1979 | 4 |
| 1980 | 2 |
| 1981 | 3 |
| 1982 | 1 |
| 1983 | 0 |
| 1984 | 4 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 14 |
| 1988 | 11 |
| 1989 | 4 |
| 1990 | 3 |
| 1991 | 11 |
| 1992 | 17 |
| 1993 | 4 |
| 1994 | 11 |
| 1995 | 10 |
| 1996 | 7 |
| 1997 | 12 |
| 1998 | 9 |
| 1999 | 9 |
| 2000 | 8 |
| 2001 | 8 |
| 2002 | 17 |
| 2003 | 8 |
| 2004 | 15 |
| 2005 | 11 |
| 2006 | 14 |
| 2007 | 8 |
| 2008 | 8 |
| 2009 | 11 |
| 2010 | 0 |
| 2011 | 6 |
| 2012 | 13 |
| 2013 | 3 |
| 2014 | 11 |
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 0 |
| 2023 | 1 |
| 2024 | 1 |
| Total | 327 |
The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where R. J. Gilkes sits on this spectrum.
This scientist: 1,337 publications — 100th percentile
100% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 690 publications or more.
| Publications | Scientists | This scientist |
|---|---|---|
| 41–50 | 21 | |
| 51–60 | 62 | |
| 61–70 | 133 | |
| 71–80 | 257 | |
| 81–90 | 361 | |
| 91–100 | 440 | |
| 101–110 | 492 | |
| 111–120 | 541 | |
| 121–130 | 617 | |
| 131–140 | 544 | |
| 141–150 | 541 | |
| 151–160 | 539 | |
| 161–170 | 444 | |
| 171–180 | 444 | |
| 181–190 | 400 | |
| 191–200 | 377 | |
| 201–210 | 318 | |
| 211–220 | 282 | |
| 221–230 | 263 | |
| 231–240 | 220 | |
| 241–250 | 217 | |
| 251–260 | 180 | |
| 261–270 | 181 | |
| 271–280 | 155 | |
| 281–290 | 130 | |
| 291–300 | 127 | |
| 301–310 | 130 | |
| 311–320 | 85 | |
| 321–330 | 106 | |
| 331–340 | 80 | |
| 341–350 | 83 | |
| 351–360 | 75 | |
| 361–370 | 69 | |
| 371–380 | 52 | |
| 381–390 | 54 | |
| 391–400 | 56 | |
| 401–410 | 44 | |
| 411–420 | 40 | |
| 421–430 | 36 | |
| 431–440 | 25 | |
| 441–450 | 25 | |
| 451–460 | 32 | |
| 461–470 | 29 | |
| 471–480 | 21 | |
| 481–490 | 26 | |
| 491–500 | 26 | |
| 501–510 | 17 | |
| 511–520 | 19 | |
| 521–530 | 15 | |
| 531–540 | 22 | |
| 541–550 | 12 | |
| 551–560 | 15 | |
| 561–570 | 11 | |
| 571–580 | 19 | |
| 581–590 | 9 | |
| 591–600 | 9 | |
| 601–610 | 7 | |
| 611–620 | 11 | |
| 621–630 | 5 | |
| 631–640 | 5 | |
| 641–650 | 6 | |
| 651–660 | 3 | |
| 661–670 | 3 | |
| 671–680 | 4 | |
| 681–689 | 4 | |
| 690+ | 100 | 1,337 |
The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where R. J. Gilkes sits on this spectrum.
This scientist: 71 D-Index — 84th percentile
84% of scientists in this discipline score the same or lower.
The last bar groups every scientist with 126 D-Index or more.
| D-Index | Scientists | This scientist |
|---|---|---|
| 30 | 12 | |
| 31 | 26 | |
| 32 | 51 | |
| 33 | 88 | |
| 34 | 123 | |
| 35 | 163 | |
| 36 | 206 | |
| 37 | 267 | |
| 38 | 265 | |
| 39 | 275 | |
| 40 | 321 | |
| 41 | 343 | |
| 42 | 305 | |
| 43 | 336 | |
| 44 | 330 | |
| 45 | 348 | |
| 46 | 291 | |
| 47 | 275 | |
| 48 | 272 | |
| 49 | 273 | |
| 50 | 263 | |
| 51 | 232 | |
| 52 | 266 | |
| 53 | 217 | |
| 54 | 198 | |
| 55 | 177 | |
| 56 | 202 | |
| 57 | 204 | |
| 58 | 166 | |
| 59 | 177 | |
| 60 | 166 | |
| 61 | 152 | |
| 62 | 143 | |
| 63 | 150 | |
| 64 | 124 | |
| 65 | 119 | |
| 66 | 120 | |
| 67 | 118 | |
| 68 | 82 | |
| 69 | 98 | |
| 70 | 94 | |
| 71 | 105 | 71 |
| 72 | 74 | |
| 73 | 84 | |
| 74 | 70 | |
| 75 | 67 | |
| 76 | 78 | |
| 77 | 60 | |
| 78 | 59 | |
| 79 | 52 | |
| 80 | 47 | |
| 81 | 38 | |
| 82 | 48 | |
| 83 | 42 | |
| 84 | 42 | |
| 85 | 43 | |
| 86 | 29 | |
| 87 | 37 | |
| 88 | 29 | |
| 89 | 30 | |
| 90 | 34 | |
| 91 | 20 | |
| 92 | 22 | |
| 93 | 17 | |
| 94 | 19 | |
| 95 | 24 | |
| 96 | 21 | |
| 97 | 20 | |
| 98 | 24 | |
| 99 | 17 | |
| 100 | 17 | |
| 101 | 21 | |
| 102 | 25 | |
| 103 | 18 | |
| 104 | 26 | |
| 105 | 20 | |
| 106 | 15 | |
| 107 | 10 | |
| 108 | 13 | |
| 109 | 15 | |
| 110 | 12 | |
| 111 | 8 | |
| 112 | 7 | |
| 113 | 9 | |
| 114 | 6 | |
| 115 | 12 | |
| 116 | 7 | |
| 117 | 8 | |
| 118 | 3 | |
| 119 | 5 | |
| 120 | 7 | |
| 121 | 2 | |
| 122 | 4 | |
| 123 | 8 | |
| 124 | 7 | |
| 125 | 9 | |
| 126+ | 92 |
R. J. Gilkes is affiliated with the University of Western Australia and has contributed to research primarily in the fields of Environmental Science and Agricultural and Biological Sciences. Their work encompasses several subfields including Soil Science, Biomaterials, Environmental Engineering, Civil and Structural Engineering, and aspects of Management, Monitoring, Policy, and Law.
Their research topics focus notably on Soil Carbon and Nitrogen Dynamics, Clay minerals and soil interactions, Soil and Unsaturated Flow, Soil and Land Suitability Analysis, Paleontology and Stratigraphy of Fossils, CO2 Sequestration and Geologic Interactions, and Soil and Water Nutrient Dynamics.
Among the recent papers authored or coauthored by R. J. Gilkes are:
Frequent coauthors in their work include N. Prakongkep (4 collaborations), Claude Hammecker (3 collaborations), Worachart Wisawapipat (2 collaborations), Parapond Leksungnoen (2 collaborations), and Chanida Kerdchana.
R. J. Gilkes' publications have appeared in diverse venues including the Journal of Agricultural Science, Geobiology, Agronomy, Soil Use and Management, and the Journal of Agricultural and Crop Research.
The scientist was recognized with the title of Fellow of the Soil Science Society of America (SSSA) in 1990.
Hedinaldo N Lima;Carlos E.R Schaefer;Jaime W.V Mello;Robert J Gilkes
P. S. Sidhu;R. J. Gilkes;R. M. Cornell;A. M. Posner
A.D. Harley;Robert Gilkes
Seyed Ata Rezaei;Robert J. Gilkes;Susan S. Andrews
[No Value] Balwant Singh;R.J. Gilkes
K. Snars;Robert Gilkes
Seyed Ata Rezaei;Robert J. Gilkes
B Singh;RJ Gilkes
B. Singh;R. J. Gilkes
N. Hunt;Robert Gilkes
R.J. Harper;I. Mckissock;Robert Gilkes;D.J. Carter
A. Samadi;Robert Gilkes
P.S. Sidhu;R.J. Gilkes;A.M. Posner
P.S. Sidhu;R.J. Gilkes;A.M. Posner
P. Hinsinger;Robert Gilkes
Felipe N. B. Simas;Carlos Ernesto G. R. Schaefer;Vander F. Melo;Marcelo B. B. Guerra
Philippe Hinsinger;R.J. Gilkes
R. J. Gilkes;G. Scholz;G. M. Dimmock
G.L. Silva;H.V. Lima;M.M. Campanha;Robert Gilkes
R.J. Harper;Robert Gilkes
P. Hinsinger;Robert Gilkes
Robert Gilkes;Nattaporn Prakongkep;R. Gilkes;N. Prakongkep
If you think any of the details on this page are incorrect, let us know.
For students interested in Environmental Sciences, exploring related online degrees can open up diverse career pathways. Programs in geology degrees online offer foundational knowledge about Earth's physical structure, essential for understanding environmental processes and sustainability challenges.
Another growing field is Geographic Information Systems (GIS). Colleges with gis programs train students in spatial data analysis, a critical skill for managing natural resources and climate research.
For those considering a more flexible or broad academic path, affordable options exist as well. Reviewing the best affordable online general studies degree programs can provide a cost-effective way to start a career in environmental fields.
Additionally, some students prioritize balance and ease during their studies. Exploring the what's the easiest bachelor's degree to get can help identify programs that align with their learning style and time commitments.
Pursuing these degrees online enhances accessibility and flexibility, making them suitable pathways for aspiring environmental professionals.
Northwestern University
University of Tennessee at Knoxville
Istanbul University Cerrahpaşa
Oklahoma State University
University of Victoria
The Ohio State University
Indiana University
Texas Tech University
Kiel University
Tel Aviv University
University of Rouen
KU Leuven
Takeda (United States)
The University of Texas at San Antonio
University of Winnipeg
Huazhong Agricultural University