Using Polyvinyl Alcohol as Polymeric Adhesive to Enhance the Water Stability of Soil and its Performance
arxiv(2024)
摘要
Soil degradation threatens agricultural productivity and food supply, leading
to hunger issues in some developing regions. To address this challenge, we
developed a low-cost, highly efficient, and long-term stable soil improvement
method. We chose polyvinyl alcohol (PVA), a commercially available polymer that
is safe and non-degradable, to serve as a soil adhesive. We mixed PVA solution
into the soil and applied a drying treatment to enhance the bonding between PVA
and the soil, achieving highly water-stable soil. This PVA-stabilized soil
exhibits low bulk density, high porosity, and high permeability, making it an
ideal substrate for planting. In a germination test, the PVA-stabilized soil
revealed a higher germination rate and growth rate compared to those of the
non-treated soil. We believe this simple and efficient soil improvement method
can restore degraded soil and contribute to sustainable agriculture.
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