L. S. Willardson

1.1k total citations
82 papers, 799 citations indexed

About

L. S. Willardson is a scholar working on Civil and Structural Engineering, Soil Science and Environmental Engineering. According to data from OpenAlex, L. S. Willardson has authored 82 papers receiving a total of 799 indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Civil and Structural Engineering, 28 papers in Soil Science and 13 papers in Environmental Engineering. Recurrent topics in L. S. Willardson's work include Irrigation Practices and Water Management (21 papers), Soil and Unsaturated Flow (19 papers) and Groundwater flow and contamination studies (9 papers). L. S. Willardson is often cited by papers focused on Irrigation Practices and Water Management (21 papers), Soil and Unsaturated Flow (19 papers) and Groundwater flow and contamination studies (9 papers). L. S. Willardson collaborates with scholars based in United States, Egypt and China. L. S. Willardson's co-authors include J. D. Oster, Chandra A. Madramootoo, Gary P. Merkley, Zohrab Samani, Rex L. Hurst, C. W. Robbins, W. Dierickx, B. D. Meek, J. E. Christiansen and R. J. Hanks and has published in prestigious journals such as Soil Science Society of America Journal, Soil Science and Crop Science.

In The Last Decade

L. S. Willardson

72 papers receiving 658 citations

Peers

L. S. Willardson
Comparison fields: 5 of 82
  • Soil Science 341
  • Civil and Structural Engineering 325
  • Environmental Engineering 178
  • Water Science and Technology 153
  • Global and Planetary Change 137
Jan van Schilfgaarde United States
P.B.S. Sarma India
Roberto Clemente Thailand
P.A.C. Raats Netherlands
D. B. Jaynes United States
N. K. Tyagi India
Pierre Ruelle France
Frederick R. Troeh United States
S. K. Kamra India
J.W. Gowing United Kingdom
Jan van Schilfgaarde United States View profile →
Citations per field, relative to L. S. Willardson
L. S. Willardson · 1×
Citations per year, relative to L. S. Willardson
L. S. Willardson · 1×

Countries citing papers authored by L. S. Willardson

Since Specialization
Citations

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

Fields of papers citing papers by L. S. Willardson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by L. S. Willardson. 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 L. S. Willardson. The network helps show where L. S. Willardson may publish in the future.

Co-authorship network of co-authors of L. S. Willardson

This figure shows the co-authorship network connecting the top 25 collaborators of L. S. Willardson. A scholar is included among the top collaborators of L. S. Willardson 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 L. S. Willardson. L. S. Willardson 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
# Title Journal Authors Indexed citations
1 Impact of land utilization systems on agricultural productivity L. S. Willardson 6
2 Drainage along the River Nile Journal of Irrigation and Drainage Engineering L. S. Willardson 3
3 Interactive effect of irrigation and nitrogen fertilization on cotton, soil, and groundwater nitrogen Communications in Soil Science and Plant Analysis L. S. Willardson et al. 3
4 Water Conservation Definitions From a Hydrologic Viewpoint Richard G. Allen, Charles M. Burt et al. 7
5 Evaporation Ponds: What are They; Why Some Concerns Kenneth K. Tanji, L. S. Willardson et al. 2
6 An algorithm for conjunctive use of saline groundwater. L. S. Willardson 1
7 Practical Land Grading Based on Least Squares Journal of Irrigation and Drainage Engineering L. S. Willardson et al. 16
8 Artesian and Anisotropic Effects on Drain Spacing Journal of Irrigation and Drainage Engineering L. S. Willardson et al. 5
9 Hydraulic Ram Use for Sprinkle Irrigation Transactions of the ASAE L. S. Willardson et al. 2
10 Drainage requirements and systems. L. S. Willardson, C. R. Camp et al. 3
11 Effect of irrigation frequencies on alfalfa seed yield California Agriculture R. Hagemann, C. F. Ehlig et al. 2
12 Model of Salt Flow in Soil with a Source‐sink Term Soil Science Society of America Journal R. J. Hanks, L. S. Willardson et al. 19
13 Effects of Irrigation Management on the Quality of Irrigation Return Flow in Ashley Valley, Utah Soil Science Society of America Journal Ron D. Bliesner, R. J. Hanks et al. 4
14 Alfalfa seed underground drip irrigation California Agriculture R. Hagemann, L. S. Willardson et al. 0
15 Water Movement in Soil from Trickle Source Journal of the Irrigation and Drainage Division Ahmed Hachum, L. S. Willardson et al. 17
16 Irrigation Control Using Tensiometers and Salinity Sensors Transactions of the ASAE J. D. Oster, L. S. Willardson et al. 3
17 Irrigating for maximum alfalfa seed yield California Agriculture R. Hagemann, L. S. Willardson et al. 3
18 Tensiometer Use in Shallow Ground-Water Studies Journal of the Irrigation and Drainage Division S. J. Richards, L. S. Willardson et al. 2
19 Nitrate Reduction with Submerged Drains Transactions of the ASAE L. S. Willardson, B. D. Meek et al. 8
20 Separation of Evapotranspiration and Deep Percolation Journal of the Irrigation and Drainage Division L. S. Willardson et al. 2

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

Rankless by CCL
2026