SelectedWorks - Robert Horton

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Selected Works of Robert Horton

Distinguished Professor of Agronomy

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About Robert Horton

Present	Distinguished Professor of Agronomy, Iowa State University ‐ Department of Agronomy
Institution Organization Position Type Position Title Time Period to Options Current Position Affiliate my profile with this Institution

Agricultural Science

Articles (129)

Application of infinite line source and cylindrical‐perfect‐conductor theories ...

Soil Science Society of America Journal (2021)

Wei Peng, Tusheng Ren and Robert Horton

The infinite line source (ILS) theory for soil thermal property determination with heat pulse (HP) sensors is simple and widely‐used, ...

Biochar and compost amendment impacts on soil water and pore ...

Soil Science Society of America Journal (2021)

Alaa Ibrahim and Robert Horton

Soil structure which refers to aggregates and pore characteristics, reflects the spatial arrangement of soil particles and is a key ...

A piecewise analysis model for electrical conductivity calculation from time ...

Computers and Electronics in Agriculture (2021)

Zhuangji Wang, Dennis Timlin, Yuki Kojima, Chenyi Luo, et al.

Electrical conductivity (EC) represents a material’s ability to conduct electric current. Soil EC has been used as a soil quality ...

Evaluation of 14 frozen soil thermal conductivity models with observations ...

Geoderma (2021)

Hailong He, Gerald N. Flerchinger, Yuki Kojima, Dong He, et al.

Frozen soil thermal conductivity (FSTC, λeff) is a critical thermophysical property that is required for a variety of science and ...

In‐situ Probe Spacing Calibration Improves the Heat Pulse Method ...

Soil Science Society of America Journal (2020)

Meng Zhang, Yili Lu, Tusheng Ren and Robert Horton

Heat pulse (HP) sensors have been used extensively to measure soil thermal properties and volumetric water content (θ) simultaneously. Probe ...

Estimating thermal conductivity of frozen soils from air‐filled porosity

Soil Science Society of America Journal (2020)

Zhengchao Tian, Tusheng Ren, Joshua L. Heitman and Robert Horton

Soil thermal conductivity (λ) is an important thermal property for environmental, agricultural, and engineering heat transfer applications. Existing λ models ...

A Greenhouse Study of Concrete Grinding Residue Influences on Seedling ...

Water, Air, & Soil Pollution (2020)

Chenyi Luo, Zhuangji Wang, Farnaz Kordbacheh, Shengting Li, et al.

Concrete grinding residue (CGR) is a byproduct of diamond grinding, a road surface maintenance technique. Direct deposition of CGR along ...

Are Visible Fractures Accurate Predictors of Flow and Mass Transport ...

Groundwater (2020)

Nathan L. Young, William W. Simpkins and Robert Horton

Tracer experiments conducted in the laboratory on undisturbed core samples (<7.3-cmdiameter) have been a standard method for estimating hydraulic and ...

A new thermo-time domain reflectometry approach to quantify soil ice ...

Cold Regions Science and Technology (2020)

Yuki Kojima, Yuta Nakano, Chihiro Kato, Kosuke Noborio, et al.

Soil ice content (θi) is an important property for many studies associated with cold regions. In situ quantification of θi ...

Wind effects on dual probe heat pulse method measured soil ...

Soil Science Society of America Journal (2020)

Yujie Sang, Gang Liu and Robert Horton

When a dual probe heat pulse (DPHP) sensor is installed in soil near the soil-atmosphere interface, the basic assumptions of ...

The Influence of Concrete Grinding Residue on Soil Physical Properties ...

Journal of Environmental Quality (2019)

Chenyi Luo, Zhuangji Wang, Farnaz Kordbacheh, Yang Zhang, et al.

Diamond grinding is a concrete pavement maintenance technique, and concrete grinding residue (CGR) is the byproduct. Concrete grinding residue deposited ...

Capacity and Distribution of Water Stored in the Vadose Zone ...

Vadose Zone Journal (2019)

Yuanjun Zhu, Xiaoxu Jia, Jiangbo Qiao, Andrew Binley, et al.

Water stored in the vadose (unsaturated) zone provides the majority of water required by plants and buffers water resources; thus, ...

Effects of concrete grinding residue (CGR) on selected sandy loam ...

Journal of Cleaner Production (2019)

Bo Yang, Bora Cetin, Yang Zhang, Chenyi Luo, et al.

Concrete Grinding Residue (CGR) is a slurry waste generated from diamond grinding of fresh concrete pavement surfaces. Fresh CGRs are ...

Improving Soil Heat Flux Accuracy with the Philip Correction Technique

Journal of Hydrometeorology (2019)

Bing Tong, Thomas J. Sauer, Zhiqiu Gao, Xinhua Xiao, et al.

Soil heat flux Gs is an important component of the surface energy balance. Soil heat flux plates (SHFPs) are widely ...

Cryptic footprints of rare earth elements on natural resources and ...

Environment International (2019)

Muhammad Adeel, Jie Yinn Lee, Muhammad Zain, Muhammad Rizwan, et al.

Background: Rare earth elements (REEs) are gaining attention due to rapid rise of modern industries and technological developments in their ...

Approaches for estimating unsaturated soil hydraulic conductivities at various bulk ...

Journal of Hydrology (2019)

Zhengchao Tian, Dilia Kool, Tusheng Ren, Robert Horton, et al.

The Mualem-van Genuchten model has been widely used for estimating unsaturated soil hydraulic conductivity (Ku) from measured saturated hydraulic conductivity ...

An Improved Thermo-TDR Technique for Monitoring Soil Thermal Properties, Water ...

Vadose Zone Journal (2019)

Wei Peng, Yili Lu, Xiaoting Xie, Tusheng Ren, et al.

The thermo-time domain reflectometry (thermo-TDR) technique is valuable for monitoring in situ soil water content (θ), thermal properties, bulk density ...

Soil water retention and hydraulic conductivity dynamics following tillage

Soil and Tillage Research (2019)

D. Kool, B. Tong, Z. Tian, J. L. Heitman, et al.

Soil bulk density (rhob) may be purposely reduced in agricultural fields using tillage to improve hydraulic properties. However, tillage alters ...

Thermal property values of a central Iowa soil as functions ...

European Journal of Soil Science (2019)

Bing Tong, Dilia Kool, Joshua L. Heitman, Thomas J. Sauer, et al.

Soil thermal properties play important roles in dynamic heat and mass transfer processes, and they vary with soil water content ...

Development and application of the heat pulse method for soil ...

Reviews of Geophysics (2018)

Hailong He, Miles F. Dyck, Robert Horton, Tusheng Ren, et al.

Accurate and continuous measurements of soil thermal and hydraulic properties are required for environmental, Earth and planetary science, and engineering ...

Spatial Response of Near-Surface Soil Water Contents to Newly Imposed ...

Agricultural & Environmental Letters (2018)

Aaron L. M. Daigh, Upasana Ghosh, Jodi DeJong-Hughes and Robert Horton

Near-surface soil water content (SWC) and its spatial patterns are important for landscape hydrological responses to precipitation as well as ...

Approaches for estimating soil water retention curves at various bulk ...

Water Resources Research (2018)

Zhengchao Tian, Weida Gao, Dilia Kool, Tusheng Ren, et al.

Soil bulk density (ρb) variations influence soil hydraulic properties, such as the water retention curve (WRC), but they are usually ...

An in situ probe‐spacing‐correcting thermo‐TDR sensor to ...

European Journal of Soil Science (2018)

M. M. Wen, G. Liu, R. Horton and K. Noborio

To reduce the possibility of probe deflections, conventional thermo-time domain reflectometry (T-TDR) sensors have relatively short probe lengths (≤4 cm). ...

Summary of Advances in the Heat-Pulse Technique: Improvements in Measuring ...

Soil Science Society of America Journal (2018)

Minmin Wen, Gang Liu, Robert Horton, Yili Lu, et al.

This essay provides a summary of “Advances in the Heat-Pulse Technique: Improvements in Measuring Soil Thermal Properties” recently appearing in ...

Determining In-situ Unsaturated Soil Hydraulic Conductivity at a Fine Depth ...

Journal of Hydrology (2018)

Zhengchao Tian, Dilia Kool, Tusheng Ren, Robert Horton, et al.

Unsaturated hydraulic conductivity (K) of surface soil changes substantially with space and time, and it is of great importance for ...