Nile Delta at risk: As climate change accelerates sea level rise, the Nile Delta has ranked among the UN's Intergovernmental Panel on Climate Change (IPCC) top three most vulnerable regions worldwide since the 2000s. Supporting over half of the country’s agricultural land, the Delta faces growing threats of saltwater intrusion and loss of soil organic matter. These factors are putting Egypt’s most fertile region at risk of irreversible soil degradation.

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Saltwater intrusion is the biggest threat to Egypt’s soil fertility: Rising sea levels are causing saltwater to seep further into the soil, reducing arable land and hindering plant growth. The Nile Delta is particularly prone to flooding and the intrusion of saltwater, with more than 30% of the area classed as a lowland area. This has contributed to our updated Nationally Determined Contributions (pdf) to warn that Delta could lose “up to a minimum of 30% of its food production by 2030.”

Traditional irrigation dependence exacerbates salinity risks: Egypt's reliance on traditional irrigation in farming practices heightens its vulnerability to salinization, with Saline Agriculture for Adaptation reporting that 30-40% of the Nile Delta's soils are now classed as salt-affected. This salinity is driving down crop yields and increasing farming costs due to the need for costly soil amendments, further threatening the economic viability of agriculture in the region. “I had hoped to continue what my father started, but the sea overwhelmed us. The land became saline, and there is no drainage to remove the salinity,” one farmer told the Earth Journalism Network.

The troubling decline of soil organic matter: Egypt is also grappling with a decline in soil organic matter due to rising salinity, higher temperatures, and irregular rainfall, all of which speed up soil decomposition and reduce microbial activity. This decrease in soil organic matter — particularly vital elements like phosphate, nitrogen, and carbon — impacts the growth of essential crops. Lower soil organic matter reduces the soil’s ability to support plant life and shortens the growth cycle of key crops such as rice, which requires high microbial activity and moist conditions. The loss of microbial activity further fuels a vicious cycle of rising temperatures, as dry, infertile soil releases more carbon and reduces the soil's capacity to store greenhouse gasses.

Water scarcity adds to the challenge: Another critical factor affecting soil health is the lack of sufficient water. Reduced upstream flow of the Nile, driven by higher temperatures and human-made projects like the Aswan High Dam and the Ethiopian Grand Renaissance Dam, means fewer Nile sediments reach downstream areas, leading to soil degradation. In response, local farmers are manually collecting Nile sediments and applying them to their fields in a bid to restore soil health.

Farmers are also adopting new technologies to deal with soil changes, including planting salt-tolerant crops that withstand increasing soil salinity, and adopting better irrigation methods that prevent water-logging, allowing them to manage salt accumulation in agricultural land.

What can be done? To combat soil salinization and restore farmland fertility in Egypt, strategies such as embracing soil salinization management and expanding farmland can be implemented in tandem with planting cover crops and incorporating agroforestry practices. Large-scale composting and Nile sediment collection initiatives can also help address the loss of soil organic matter and enhance soil efficiency. Additionally, monitoring coastal erosion, water supply, and soil salinization through innovative solutions is essential, aligning with Egypt’s National Climate Change Strategy.

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