Reduction of Evaporation from Water Reservoirs Using Floating Covers in Isfahan
Elham Mazaheri, Jahangir Abdei Koupai · Iranian Journal of Soil and Water Research (2018)
Key finding (our summary)
A 13-month randomised field trial in Isfahan, Iran compared three floating-sheet materials: polystyrene (85.6% evaporation reduction), polystyrene with an aluminium layer (83%), and polycarbonate (76.5%). Although polystyrene reduced evaporation most, polycarbonate showed the best long-term durability — a practical trade-off for material selection.
A useful field comparison showing the highest-suppressing material is not always the most durable — durability can decide the real choice.
This is a neutral paraphrase for indexing and discovery. For the full abstract, figures and methodology, read the original at the source link.