How Saudi Arabia is pioneering soil quality and water conservation solutions

A layer of SandX applied like mulch over wet soil greatly reduces evaporation. (KAUST/Terraxy photo)
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Updated 22 March 2025
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How Saudi Arabia is pioneering soil quality and water conservation solutions

  • SandX is a biodegradable sand coating that reduces water evaporation by 80 percent using nature-inspired technology
  • CarboSoil is a breakthrough in soil amendment and carbon capture, enhancing plant growth and reducing emissions

JEDDAH: For more than a decade Saudi Arabia has invested in sustainability, implementing groundbreaking initiatives to combat desertification, improve soil quality and preserve water.

These efforts are transforming the Kingdom’s landscape, aligning with the broader goals of the Saudi Green Initiative.

One of the most ambitious projects is King Salman Park in Riyadh — one of the world’s largest urban parks. The initiative focuses on increasing green spaces, restoring soil health and mitigating the urban heat island effect.

Native tree planting and sustainable water management systems are key components, ensuring long-term environmental benefits.

Meanwhile, on the Kingdom’s east coast, Saudi Aramco has spearheaded efforts to manage soil erosion, improve water retention and enhance biodiversity.

But it is in the laboratories of King Abdullah University of Science and Technology where cutting-edge technology is shaping the future of sustainable soil solutions.




Terraxy technology in the lab. (KAUST photo)

Himanshu Mishra, an associate professor at KAUST, has spent the last decade addressing some of Saudi Arabia’s biggest environmental challenges. A specialist in water properties, his early research led him to an eye-opening realization about the Kingdom’s water usage.

“When I came to Saudi Arabia, I learned about the stress on water,” Mishra told Arab News. “Somebody told me that 80 percent of Saudi Arabia’s water is used for food production, yet (the country) is importing most of its food. That just blew my mind. I was disturbed by it.”

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Inspired by nature’s ability to repel water, Mishra co-founded SandX, a biodegradable, water-repellent sand coating designed to reduce water evaporation.

The technology mimics nature’s super water-repellent surfaces — like butterfly wings and bird feathers — to create a revolutionary material.

“This material, it hates water. It absolutely hates water,” said Mishra. “This is SandX, and water doesn’t penetrate it.




Screen grab from a video showing KAUST researchers applying Carbosoil at a SandX testing site. (KAUST video)

Each grain of SandX is coated with a nanoscale layer of biodegradable paraffin wax, reducing water evaporation by over 80 percent without the use of plastics. “Bacteria will eat the wax, so SandX will become sand again,” Mishra said.

“No one has ever done this in Saudi Arabia. We are the engineers, the first ones to do that. We are pioneers in this.”

Water scarcity, however, is only part of the challenge. “Do you know how old this water is?” Mishra asked, holding up a bottle. “This water is older than our planet. We have limited water resources, but we still have some resources. What we don’t have (are) fertile soils.”




Himanshu Mishra. (Supplied)

Green spaces in Saudi Arabia are heavily dependent on imported peat moss, he said, a practice that is not only expensive but also counterproductive to sustainability.

“You import so much peat moss every year — it’s a multi-million-dollar market. And you rely on these imports. It defeats the whole purpose of sustainability.”

To address this, Mishra developed CarboSoil, a groundbreaking soil amendment and carbon capture technology derived from organic waste.




A layer of SandX applied like mulch over wet soil greatly reduces evaporation. (KAUST/Terraxy photo)

Unlike traditional compost, which eventually releases carbon back into the air, CarboSoil locks carbon into the soil while enhancing plant growth.

“This is the only technology known to humanity that does soil amendment and carbon capture at the same time,” he said.

Field trials for CarboSoil are ongoing, with production scaling up following a KAUST Innovation and Economic Development grant. Mishra believes the impact will be transformative.

“Our technology will contribute to food production and greening projects in arid regions,” he said. “When you apply it on plants, they grow bigger and stronger — like 60 percent bigger, with wider trunks. Enhanced food production. Enhanced yields. That’s additional carbon capture.”




Oil palm waste. (Getty Images)

Looking ahead, Mishra envisions Saudi Arabia leading the world in carbon dioxide removal.

“I can guarantee you that as we continue to scale up this production under the stewardship of the Ministry of Environment, Water, and Agriculture, in less than five years, Saudi Arabia will be ranked number one in carbon dioxide removal deliveries on the planet.”

The startup’s ambitions extend far beyond the Kingdom. “Right now, our goal is to contribute to the landscaping and green sector in the Kingdom,” he said.

“In phase three, we start building factories for poultry farms, date farms, and other industries. Phase four is we will expand to the wider Middle East.”
 

 


How Saudi Arabia’s five Founding Day symbols tell a 299-year story

Updated 22 February 2026
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How Saudi Arabia’s five Founding Day symbols tell a 299-year story

  • The flag, the palm, the Arabian horse, the souq and the falcon are symbols that connect Saudi Arabia to its roots
  • Researcher Ismail Abdullah Hejles explains how the Kingdom’s symbols anchor identity, heritage and continuity

RIYADH: As Saudi Arabia prepares to mark its 299th anniversary this Founding Day — commemorating the establishment of the First Saudi State by Imam Muhammed bin Saud in 1727 CE — the moment invites reflection not only on history, but on the symbols that distill that history into enduring meaning.

Beyond ceremony and celebration, the Kingdom’s official Founding Day emblems tell a deeper story: of survival in a harsh landscape, of state-building against the odds, and of values carried forward across nearly three centuries. Together, they form a visual language that binds past to present and projects confidence into the future.

The five Founding Day symbols — the green flag, the palm tree, the Arabian horse, the souq, and the falcon — do not serve a purely celebratory function, Ismail Abdullah Hejles, a Saudi researcher in traditional architecture, told Arab News. Rather, they carry an intellectual and cultural role that connects society to its roots.

“Nations that understand their symbols and identity understand themselves and are better equipped to continue their journey with confidence and balance,” he said.

The Saudi flag. (SPA)

The Saudi flag, a representation of unity and sovereignty, embodies the values upon which the state was founded and reflects the continuity of the nation, linking its past to its present. The current design was adopted in 1937, refining historical banners from the first and second Saudi states.

The Shahada, the Islamic declaration of faith, symbolizes the Kingdom’s foundation on Islamic values, while justice and safety are echoed through the sword, which represents the unification of the Kingdom during the reign of the late King Abdulaziz Al-Saud.

The flag’s green color is traditionally associated with Islam, reflecting continuity and faith as central pillars of the Saudi state.

Additionally, the palm tree and the crossed swords — now synonymous with Saudi Arabia — officially appeared in the Kingdom’s emblem around 1950 following unification. Together, they express strength, justice, and the protection of unity.

The Saudi emblem

“The choice was not arbitrary,” Hejles said. “It brought together strength (the sword) and life and sustainability (the palm). It reflects a careful balance of firmness and generosity.”

The palm tree’s symbolic presence, however, predates the modern state, stretching back to the ancient civilizations of the Arabian Peninsula.

“In the simple oases, the palm tree was life, and the swords were dignity. The palm offered shade and sustenance, the swords protected the land and the name. Between the shade of the palm and the edge of the sword, the story of a nation takes place.”

The palm tree served numerous functions essential to the sustainability of civilizations. Its dates were a nutritious food; its fronds were used for roofing; its trunk built walls; its fiber made ropes; and it provided fuel and shade for communities.

In places such as Qatif and Al-Ahsa, the palm tree formed a complete life system with almost no waste. (SPA)

In places such as Qatif and Al-Ahsa, the palm formed a complete life system with almost no waste. It was not merely an agricultural symbol, but a genuine model of sustainability long before the term itself was coined, Hejles said.

Mentioned in the Qur’an more than 20 times, always associated with generosity and abundance, the palm formed the backbone of the agricultural economy in eastern Arabia.

“The souq (traditional market) was not merely a place of trade but a space for social interaction, knowledge exchange, and solidarity,” Hejles said. Through it, economic activity flourished and relationships between communities were strengthened.

A civilizational concept that emerged centuries before Islam, the souq arose from a simple human need: exchange. (Supplied)

“Nomads and desert dwellers possessed surplus goods and sought what they lacked through barter.”

A civilizational concept that emerged centuries before Islam, the souq arose from a simple human need: exchange. That exchange generated social mobility and fostered a culture of openness, which later contributed to the rise of cities.

A civilizational concept that emerged centuries before Islam, the souq arose from a simple human need: exchange. (Supplied)

In the pre-Islamic era, seasonal markets such as Souq ‘Ukaz, Souq Majanna, and Souq Dhu Al-Majaz were not only commercial hubs, but also literary forums, political arenas, and spaces for reconciliation and arbitration.

Once Islam was adopted, Souq Al-Madinah was established on principles prohibiting monopoly, forbidding fraud, and ensuring justice.

In the Saudi state, the souq evolved from traditional mud-and-wood covered bazaars into modern shopping centers and large commercial complexes. “Yet, the concept remained the same: a place of encounter before it is a place of sale,” Hejles said.

A civilizational concept that emerged centuries before Islam, the souq arose from a simple human need: exchange. (Supplied)

The Arabian horse, another Founding Day symbol, is associated with authenticity and courage. It accompanied the early stages of state-building, travel, and defense, becoming a symbol of strength and pride in Arab heritage.

The Arabs’ oldest companion, the Arabian horse is one of the oldest and purest breeds in the world. It was bred on the Arabian Peninsula for extreme endurance, speed, and agility.

Thanks to their lung capacity, endurance, and strong feet and bones, these horses could cover long distances in harsh desert conditions and survive on minimal resources, sometimes fed only dates and camel’s milk.

To protect them against theft and harsh weather, they were sometimes brought inside family tents, which led to the development of intense bonds with their owners. Arabian horses are known to be fearless and loyal, capable of protecting their masters in battle.

The Arabs’ companion, the Arabian horse is one of the oldest and purest breeds in the world. It was bred on the Arabian Peninsula for extreme endurance, speed, and agility. (SPA photo)

They also possessed a “war-sense,” allowing them to act intelligently in combat, known as well to have a high spirit in battle.

In Saudi Arabia, Arabian horses were vital in travel, trade, and warfare. Today, they symbolize nobility, pride, courage, and honor — reflecting and continuing the Kingdom’s equestrian legacy.

And finally, vigilance, insight, and high ambition are represented by the falcon. “It is tied to the practice of falconry, which requires patience and skill, and today symbolizes the continuity of heritage and elevated aspirations,” Hejles said.

The falcon was not merely a hobby but a hunting tool in a harsh desert environment, a companion to the Bedouin, and a symbol of strength, precision, and patience. (AN photo/AN Huda Bashatah)

Falconry was not merely a hobby, but a hunting tool in a harsh desert environment — a companion to the Bedouin and a symbol of strength, precision, and patience. The long training required to master falconry fostered discipline and strong leadership in its practitioners.

Over time, the falcon became associated with prestige and courage, linked to Bedouin identity and nobility, and embedded in poetry and storytelling.

A heritage passed through generations, falconry is now inscribed on UNESCO’s Representative List of the Intangible Cultural Heritage of Humanity, with Saudi Arabia and other participating countries, reinforcing its global cultural significance.

The falcon was not merely a hobby but a hunting tool in a harsh desert environment, a companion to the Bedouin, and a symbol of strength, precision, and patience. (SPA)

“These symbols were not chosen for their visual appeal,” Hejles said. “They were chosen because they were tested across centuries of lived experience.”

Representing more than their individual images, they are collectively an expression of the Saudi citizen’s relationship with land, environment, dignity, and continuity.