Evaluation of a local regression kriging approach for mapping apparent electrical conductivity of soil (ECa) at high resolution

2012 ◽  
Vol 175 (2) ◽  
pp. 212-220 ◽  
Author(s):  
Wei Sun ◽  
Brett M. Whelan ◽  
Budiman Minasny ◽  
Alex B. McBratney
Keyword(s):  
Electrical Conductivity ◽  
High Resolution ◽  
Regression Kriging ◽  
Local Regression ◽  
Apparent Electrical Conductivity ◽  
Kriging Approach

scholarly journals Combining Evapotranspiration and Soil Apparent Electrical Conductivity Mapping to Identify Potential Precision Irrigation Benefits

2019 ◽  
Vol 11 (21) ◽  
pp. 2460
Author(s):  
Mallika A. Nocco ◽  
Samuel C. Zipper ◽  
Eric G. Booth ◽  
Cadan R. Cummings ◽  
Steven P. Loheide ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
High Resolution ◽  
Water Use ◽  
Sweet Corn ◽  
Future Research ◽  
Midwest United States ◽  
Available Water Content ◽  
Field Corn ◽  
Apparent Electrical Conductivity ◽  
Precision Irrigation

Precision irrigation optimizes the spatiotemporal application of water using evapotranspiration (ET) maps to assess water stress or soil apparent electrical conductivity (ECa) maps as a proxy for plant available water content. However, ET and ECa maps are rarely used together. We developed high-resolution ET and ECa maps for six irrigated fields in the Midwest United States between 2014–2016. Our research goals were to (1) validate ET maps developed using the High-Resolution Mapping of EvapoTranspiration (HRMET) model and aerial imagery via comparison with ground observations in potato, sweet corn, and pea agroecosystems; (2) characterize relationships between ET and ECa; and (3) identify potential precision irrigation benefits across rotations. We demonstrated the synergy of combined ET and ECa mapping for evaluating whether intrafield differences in ECa correspond to actual water use for different crop rotations. We found that ET and ECa have stronger relationships in sweet corn and potato rotations than field corn. Thus, sweet corn and potato crops may benefit more from precision irrigation than field corn, even when grown rotationally on the same field. We recommend that future research consider crop rotation, intrafield soil variability, and existing irrigation practices together when determining potential water use, savings, and yield gains from precision irrigation.

Apparent Electrical Conductivity, Soil Properties and Spatial Covariance in the U.S. Southern High Plains

2005 ◽  
Vol 6 (3) ◽  
pp. 297-311 ◽  
Author(s):  
K. F. Bronson ◽  
J. D. Booker ◽  
S. J. Officer ◽  
R. J. Lascano ◽  
S. J. Maas ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Soil Properties ◽  
High Plains ◽  
Spatial Covariance ◽  
Southern High Plains ◽  
Apparent Electrical Conductivity ◽  
The U.S

Relating apparent electrical conductivity to soil properties across the north-central USA

2005 ◽  
Vol 46 (1-3) ◽  
pp. 263-283 ◽  
Author(s):  
K.A. Sudduth ◽  
N.R. Kitchen ◽  
W.J. Wiebold ◽  
W.D. Batchelor ◽  
G.A. Bollero ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Soil Properties ◽  
North Central ◽  
The North ◽  
Apparent Electrical Conductivity ◽  
Central Usa

HIGH-RESOLUTION STRATIGRAPHIC CHARACTERIZATION OF UNCONSOLIDATED DEPOSITS USING DIRECT-PUSH ELECTRICAL CONDUCTIVITY LOGGING: A FLOODPLAIN-MARGIN EXAMPLE

2004 ◽  
pp. 67-78 ◽  
Author(s):  
MARCIA K. SCHULMEISTER ◽  
JAMES J. BUTLER ◽  
EVAN K. FRANSEEN ◽  
DOUGLAS A. WYSOCKI ◽  
JAMES A. DOOLITTLE
Keyword(s):  
Electrical Conductivity ◽  
High Resolution ◽  
Direct Push
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