G. Rys

1.3k total citations
44 papers, 1.0k citations indexed

About

G. Rys is a scholar working on Soil Science, Environmental Chemistry and Agronomy and Crop Science. According to data from OpenAlex, G. Rys has authored 44 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Soil Science, 19 papers in Environmental Chemistry and 12 papers in Agronomy and Crop Science. Recurrent topics in G. Rys's work include Soil Carbon and Nitrogen Dynamics (20 papers), Soil and Water Nutrient Dynamics (19 papers) and Ruminant Nutrition and Digestive Physiology (7 papers). G. Rys is often cited by papers focused on Soil Carbon and Nitrogen Dynamics (20 papers), Soil and Water Nutrient Dynamics (19 papers) and Ruminant Nutrition and Digestive Physiology (7 papers). G. Rys collaborates with scholars based in New Zealand, United States and Cambodia. G. Rys's co-authors include Cecile A. M. de Klein, Jiafa Luo, Tony J. van der Weerden, H. Clark, Timothy J. Clough, Francis M. Kelliher, J. R. Sedcole, Surinder Saggar, Donna Giltrap and Keith C. Cameron and has published in prestigious journals such as The Science of The Total Environment, Environmental Pollution and Soil Biology and Biochemistry.

In The Last Decade

G. Rys

42 papers receiving 984 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
G. Rys New Zealand 16 590 519 248 236 194 44 1.0k
Karen McGeough United Kingdom 18 702 1.2× 553 1.1× 173 0.7× 297 1.3× 179 0.9× 27 1.1k
H. J. Di New Zealand 17 839 1.4× 709 1.4× 262 1.1× 262 1.1× 213 1.1× 28 1.3k
Moira Dexter New Zealand 10 848 1.4× 413 0.8× 143 0.6× 363 1.5× 185 1.0× 14 1.2k
Arezoo Taghizadeh‐Toosi Denmark 17 915 1.6× 375 0.7× 187 0.8× 307 1.3× 205 1.1× 31 1.4k
L. García-Torres Spain 11 801 1.4× 436 0.8× 139 0.6× 160 0.7× 260 1.3× 12 993
Susantha Jayasundara Canada 16 452 0.8× 299 0.6× 274 1.1× 371 1.6× 113 0.6× 25 1.1k
Jagrati Singh New Zealand 12 668 1.1× 436 0.8× 146 0.6× 168 0.7× 267 1.4× 29 1.0k
Karl Czymmek United States 20 418 0.7× 461 0.9× 323 1.3× 227 1.0× 234 1.2× 57 931
J. Djurhuus Denmark 16 611 1.0× 459 0.9× 220 0.9× 261 1.1× 194 1.0× 24 1.2k
N. P. Smith New Zealand 18 586 1.0× 540 1.0× 152 0.6× 140 0.6× 123 0.6× 24 999

Countries citing papers authored by G. Rys

Since Specialization
Citations

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

Fields of papers citing papers by G. Rys

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of G. Rys

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

All Works

20 of 20 papers shown
1.
2.
Rys, G., et al.. (2024). Effect of contrasting water-soluble carbohydrate to crude protein ratio’s in perennial ryegrass on nitrogen metabolism in lambs. New Zealand Journal of Agricultural Research. 68(7). 1735–1744.
3.
Hartland, Adam, et al.. (2021). Development of bromide-selective Diffusive Gradients in Thin-Films for the measurement of average flow rate of streams. The Science of The Total Environment. 788. 147737–147737. 1 indexed citations
4.
Weerden, Tony J. van der, Alasdair Noble, Jiafa Luo, et al.. (2020). Meta-analysis of New Zealand's nitrous oxide emission factors for ruminant excreta supports disaggregation based on excreta form, livestock type and slope class. The Science of The Total Environment. 732. 139235–139235. 35 indexed citations
5.
Maxwell, Bryan M., et al.. (2019). Utility of ‘Diffusive Gradients in Thin-Films’ for the measurement of nitrate removal performance of denitrifying bioreactors. The Science of The Total Environment. 718. 135267–135267. 12 indexed citations
6.
Koten, Chikako van, et al.. (2016). Nitrous oxide emissions from drained peat soil beneath pasture. New Zealand Journal of Agricultural Research. 59(4). 363–376. 1 indexed citations
7.
Kelliher, F. M., N. R. Cox, Tony J. van der Weerden, et al.. (2013). Statistical analysis of nitrous oxide emission factors from pastoral agriculture field trials conducted in New Zealand. Environmental Pollution. 186. 63–66. 59 indexed citations
8.
Koten, Chikako van, et al.. (2012). Use of shallow samples to estimate the total carbon storage in pastoral soils. New Zealand Journal of Agricultural Research. 56(1). 86–90. 9 indexed citations
9.
Saggar, Surinder, Jagrati Singh, Donna Giltrap, et al.. (2012). Quantification of reductions in ammonia emissions from fertiliser urea and animal urine in grazed pastures with urease inhibitors for agriculture inventory: New Zealand as a case study. The Science of The Total Environment. 465. 136–146. 87 indexed citations
10.
Weerden, Tony J. van der, Jiafa Luo, Cecile A. M. de Klein, et al.. (2011). Disaggregating nitrous oxide emission factors for ruminant urine and dung deposited onto pastoral soils. Agriculture Ecosystems & Environment. 141(3-4). 426–436. 102 indexed citations
11.
McBride, Graham B., Ude Shankar, John M. Quinn, et al.. (2009). Integrated assessment of the environmental, economic and social impacts of land use change using a GIS format – the CLUES model. AgEcon Search (University of Minnesota, USA). 3 indexed citations
12.
Clough, Timothy J., Hong J. Di, Keith C. Cameron, et al.. (2007). Accounting for the utilization of a N2O mitigation tool in the IPCC inventory methodology for agricultural soils. Nutrient Cycling in Agroecosystems. 78(1). 1–14. 42 indexed citations
13.
Edmeades, D. C., et al.. (1986). Effect of lime on soil nitrogen uptake by a ryegrass‐white clover pasture. New Zealand Journal of Agricultural Research. 29(1). 49–53. 15 indexed citations
14.
Rys, G.. (1986). CULTIVAR VARIATION IN THE NODULATION OF WHITE CLOVER SEEDLINGS PROVIDED WITH NITROGEN. 2 indexed citations
15.
Rys, G., et al.. (1985). Comparison of the nitrogen nutrition of 2 white clover cultivars. New Zealand Journal of Agricultural Research. 28(1). 1–5. 5 indexed citations
16.
Rys, G. & D. C. Edmeades. (1984). Pasture measurement techniques and herbage consumption of limed pasture under common grazing. 12(3). 225–229. 3 indexed citations
17.
Rys, G., et al.. (1984). Effect of Nitrogen Form and Counterion on Establishment of theRhizobium trifolii-Trifolium repensSymbiosis. Journal of Experimental Botany. 35(12). 1811–1819. 18 indexed citations
18.
Edmeades, D. C., et al.. (1983). Effects of lime on the chemical composition of ryegrass and white clover grown on a yellow‐brown loam. New Zealand Journal of Agricultural Research. 26(4). 473–481. 27 indexed citations
19.
Rys, G., et al.. (1982). Influence of the test host on measurements of the effectiveness of Rhizobium trifolii isolated from naturalised Trifolium repens L. New Zealand Journal of Agricultural Research. 25(3). 455–459. 1 indexed citations
20.
Rys, G., et al.. (1981). Effectiveness of Rhizobium trifolii populations associated with Trifolium species in Taranaki, New Zealand. New Zealand Journal of Crop and Horticultural Science. 9(3-4). 329–335. 22 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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