Agricultural Geotextiles for Soil Management
topic
Agricultural geotextiles provide erosion control, drainage, filtration, and soil stabilisation functions in farming and land reclamation contexts. Woven PP slit-film geotextiles (80–200 g/m², tensile strength 10–30 kN/m, ISO 10319) are used for subsoil separation layers in drainage systems and access road stabilisation on farms. Needle-punched nonwoven PP geotextiles (150–600 g/m²) function as filtration layers in subsurface drainage systems (permittivity 0.5–3.0 s⁻¹, ISO 11058) preventing soil particle migration into drainage pipes. Natural biodegradable geotextiles — jute woven mats (400–800 g/m², 2–3 year degradation), coir rolls (500–1,500 g/m², 3–5 year service), and sisal mats — are preferred for riverbank stabilisation and slope erosion control where soil enrichment at end-of-life is desirable. Geotextile tube technology (woven PP, 3–8 m diameter, 10–20 m length, tensile strength 80–150 kN/m) is used for contained dredged material placement and coastal agricultural land reclamation. ASTM D5411 regulates erosion control product performance; ISO 10318 provides geotextile terminology and function classification.
Role
Agricultural geotextiles protect farmland soil from erosion, manage subsurface water drainage, and enable cultivation on previously marginal land by stabilising slopes and reclaiming coastal and riparian areas, directly expanding the agricultural land base available for food production.