Assessing the Performance of a Subsurface Water Retention System (SWRS) Prototype: First Evaluation of Work Productivity and Costs
Pari, Luigi ， Stefanoni, Walter ， Palmieri, Nadia ， Latterini, Francesco
2022-03-01 INVENTIONS 2022 7(卷), 1(期), (null页)
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The potential to use Subsurface Water Retention Systems (SWRSs) to combat desertification and improve agriculture in arid and semiarid areas has already been investigated and proved promising. Nevertheless, a lack of specific machinery has prevented this technology from demonstrating its effectiveness on vast areas. In the present study, a specific prototype is presented along with the results obtained from a preliminary study conducted to assess effectiveness, performance and associated cost. During the test, the machinery permitted the construction of a SWRS 100 cm belowground using a 140 kW tractor. The effective field capacity (EFC) averaged at 0.19 ha h(-1) whilst total cost was estimated to be as high as 4800.00 euro ha(-1). However, 93% of the cost was associated with the purchase cost of the removable impermeable film. A removal operation was also investigated using a 42 kW excavator for evaluating the EFC and cost which averaged at 0.2 ha h(-1) and 655.79 euro ha(-1), respectively.
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