State Water Resources Research Institute Program


Project ID: 2011KY168B
Title: Using the stability of soil moisture distribution to understand soil system modularity and complexity at the landscape scale
Project Type: Research
Start Date: 3/01/2011
End Date: 2/29/2012
Congressional District: KY 6th
Focus Categories: Groundwater, Hydrology, Water Quantity
Keywords: vadose zone, watershed processes, electrical resistivity
Principal Investigators: Wendroth, Ole (University of Kentucky); Zhu, Junfeng (University of Kentucky)
Federal Funds: $ 5,000
Non-Federal Matching Funds: $ 10,190
Abstract: Soil moisture variability results from the spatial distribution of soil parameters together with temporal changes in soil moisture status. To improve the accuracy of vadose zone modeling applications, it is important to identify at what scales structured variation exists and how these scales interrelate with one another. Soil systems are intrinsically complex and variable. This research hypothesizes such variability can be organized (i.e., decomposed) into meaningful relations between parameters and processes that in turn reveal reason behind system behavior. The objectives of this research are: 1) to establish spatio-temporal dependencies of soil moisture variability using geophysics and geostatistics; 2) to use temporal stability as a tool to identify soil-landscape features that parameterize and control moisture variability; and 3) to understand and describe how spatio-temporal dependencies interrelate between different scales using systems theory.

Progress/Completion Report, 2011, PDF

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