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Article
Spatial Response of Near-Surface Soil Water Contents to Newly Imposed Soil Management
Agricultural & Environmental Letters
  • Aaron L. M. Daigh, North Dakota State University--Fargo
  • Upasana Ghosh, North Dakota State University--Fargo
  • Jodi DeJong-Hughes, University of Minnesota - Willmar
  • Robert Horton, Iowa State University
Document Type
Article
Publication Version
Published Version
Publication Date
8-2-2018
DOI
10.2134/ael2018.06.0032
Abstract

Near-surface soil water content (SWC) and its spatial patterns are important for landscape hydrological responses to precipitation as well as our ability to remotely sense and model such responses. Our objective was to measure and evaluate near-surface SWC semivariograms of agricultural fields with newly imposed (i.e., <2 yr) side-by-side soil and residue management practices (i.e., reduced tillage systems and cover crops) in the midwestern United States. Range parameters were consistently smaller when cover crops were planted (20–25 m less) and tillage area and/or intensity was reduced (12–27 m less) compared with no cover crop and chisel plowing, respectively, except in a clayey Vertisol. Nugget and sill parameters did not have consistent trends across soil management practices or sites. These data, although brief and preliminary in scope, provide clear proof of concept that spatial pattern shifts can be clearly detected in newly imposed soil-management systems even though differences in SWC means are not always evident.

Comments

This is an article published as Daigh, A. L. M., U. Ghosh, J. DeJong-Hughes, and R. Horton. 2018. Spatial Response of Near-Surface Soil Water Contents to Newly Imposed Soil Management. Agric. Environ. Lett. 3:180032. doi: 10.2134/ael2018.06.0032.

Creative Commons License
Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International
Copyright Owner
American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
Language
en
File Format
application/pdf
Citation Information
Aaron L. M. Daigh, Upasana Ghosh, Jodi DeJong-Hughes and Robert Horton. "Spatial Response of Near-Surface Soil Water Contents to Newly Imposed Soil Management" Agricultural & Environmental Letters Vol. 3 Iss. 1 (2018) p. 180032
Available at: http://works.bepress.com/robert-horton/122/