Hydrogeophysical Monitoring of Water and Solutes in Agricultural Soils

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Agricultural Soils".

Deadline for manuscript submissions: 25 February 2025 | Viewed by 736

Special Issue Editor


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Guest Editor
Department of Land, Air, and Water Resources, University of California, Davis, CA 95616, USA
Interests: root water uptake; hydrogeophysics; soil water dynamics; evapotranspiration; soil moisture; remote sensing

Special Issue Information

Dear Colleagues,

Hydrogeophysics has advanced significantly because of substantial investigations in stochastic subsurface hydrology, which have served as an impetus for the developments in on-site investigative methodologies. The effectiveness of these unique hydrogeophysical approaches, which focus on identifying heterogeneity and fluid behavior within shallow subsurfaces, is rooted in the refinement of efficient data inversion techniques. Notably, these methods include electrical resistivity tomography, ground-penetrating radar, nuclear magnetic resonance and specific electromagnetic approaches.

This call for papers aims to promote innovative approaches in hydrogeophysical characterization, utilizing advanced geophysical tools, data fusion methodologies and machine learning for data interpretation. It emphasizes integrating hydrological models to understand soil variations, infiltration dynamics, root-water uptake and their impact on crop productivity. We encourage diverse submissions, from experimental studies to theoretical models, real-world case studies and comprehensive reviews charting future research directions. The goal is to facilitate multidisciplinary discussions, advancing our understanding of hydrogeophysical processes and enhancing agricultural practices.

This Special Issue aims to serve as an inclusive reference for researchers, practitioners and policymakers in agriculture and environmental sciences, spotlighting recent strides in hydrogeophysical methods tailored for agricultural soils. Researchers from diverse academic disciplines are invited to contribute, fostering a comprehensive discourse to advance this transformative topic.

Dr. Srinivasa Rao Peddinti
Guest Editor

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Keywords

  • hydrogeophysical methods
  • agricultural soils
  • water movement
  • plant–soil interactions
  • geophysical equipment
  • data fusion
  • infiltration dynamics
  • crop productivity
  • sustainable agriculture
  • root water uptake
  • soil moisture

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Published Papers (1 paper)

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Research

29 pages, 35964 KiB  
Article
Organic Capillary Barriers for Soil Water Accumulation in Agriculture: Design, Efficiency and Stability
by Andrey Smagin, Nadezhda Sadovnikova, Victoria Krivtsova, Christina Korchagina and Pavel Krasilnikov
Agriculture 2024, 14(9), 1623; https://doi.org/10.3390/agriculture14091623 (registering DOI) - 16 Sep 2024
Viewed by 300
Abstract
Acute shortage of water resources and high unproductive water losses are the key problems of irrigated agriculture in arid regions. One of the possible solutions is to optimize soil water retention using natural and synthetic polymer water absorbers. Our approach uses the HYDRUS-1D [...] Read more.
Acute shortage of water resources and high unproductive water losses are the key problems of irrigated agriculture in arid regions. One of the possible solutions is to optimize soil water retention using natural and synthetic polymer water absorbers. Our approach uses the HYDRUS-1D design to optimize the placement of organic water absorbents such as peat and composite hydrogels in the soil profile in the form of water-storing capillary barriers. Field testing of the approach used a water balance greenhouse experiment with the cultivation of butternut squash (butternut squash (Cucurbita moschata (Duchesne, 1786)) under sprinkler irrigation with measurement of the soil moisture profile and unproductive water losses in the form of lysimetric water outflow. In addition, the biodegradation rate of organic water absorbents was studied at the soil surface and at a depth of 20 cm. Organic capillary barriers reduced unproductive water losses by 40–70%, retaining water in the topsoil and increasing evapotranspiration by 70–130% with a corresponding increase in plant biomass and fruit yield. The deepening of organic soil modifiers to the calculated depth not only allowed capillary barriers to form, but also prevented their biodegradation. The best results in soil water retention, plant growth and yield according to the “dose-effect” criterion were obtained for a composite superabsorbent with peat filling of an acrylic polymer matrix. The study showed good compliance between the HYDRUS design and the actual efficiency of capillary barriers as an innovative technology for irrigated agriculture using natural and synthetic water absorbents. Full article
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