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Agriculture around the world faces a severe challenge from climate change causing extreme fluctuations in temperature and weather patterns. Drought and flooding have both become increasingly common and have devastating effects on the agriculture industry. Too much water can lower crop productivity, increase toxic compounds in the soil, and even render water-logged areas unusable. Too little water can delay or reduce crop productivity, hinder photosynthesis, and in some cases complete crop loss.
The EGRP™ presents a transformative approach to agricultural water management. EGRP™ is a device used to increase infiltration in poorly aggregated soils by enhancing the natural processes of capillary action, pressure differential, and hydrostatic pressure. It is a cutting-edge strategy for resilient and sustainable agriculture in a world where water constraints and climate change are significant issues.
According to an EGRP™ system study performed in 2014, the EGRP™ “worked to maintain a degree of saturation as constant as possible in the soil” and the EGRP™ system is moving water vertically in both directions thereby creating communication between the surficial layers of topsoil and the permeable to semi- permeable soils beneath (GADZ PCS 2014). This means that the EGRP™ system can effectively reduce the long term effects of both flooding and droughts by equalizing the moisture content between soil layers in all directions.
At an almond farm and processing center in California, water gathered to an evaporation pond as fugitive/nuisance stormwater. A large amount of water was typically standing on the surface for extended periods of time and all nearby almond trees were suffering from rootrot as a result. A tailored EGRP™ system, unique to this site, was designed to accommodate this 0.2-acre pond. The overall solution requires no maintenance and created minimal ecological disturbance. The EGRP™ system enhanced the overall infiltration at the site by 40% in one tenth of the time. E-PUR, on behalf of Eastside Water District (EWD) monitored the site’s standing water levels and estimated that the daily infiltration rate increased from zero to 3 inches. In July 2020, EWD expanded the EGRP™ system and it is expected that this pond will now be only a groundwater recharge pond for stormwater and orchard drainage; rarely containing standing water.
An almond orchard in California was experiencing flooding near the edge of the orchard along the road, posing a huge safety hazard to drivers. Standing water would accumulate there following most rain events above 0.3” and remain standing for 8-10 weeks, even leading to the accumulation of algae. Since the EGRP™ installation in 2017, infiltration has increased considerably, and the road is no longer unsafe due to standing water within 48 hours of a rain event. In addition, the almond orchard near the system has shown improvement in plant health. In 2020, the site was monitored by a drone capturing the normalized difference vegetation index (NVID) and the image has confirmed the observations made onsite: trees near the EGRP™ appeared healthier than the others.
Parjana℠ Engineering
625 Kenmoor Ave SE Suite 301 – #16 Grand Rapids MI 49546
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