Transforming Salt-Affected Lands in Pakistan

Pakistan's salt-affected lands pose significant agricultural challenges due to salinity and waterlogging. However, nature-based solutions, including salt-tolerant species, can restore productivity and enhance rural livelihoods. Discover how to rehabilitate saline lands and improve food security.

RURAL COMMUNITY

Nazar Gul, Faizan Ul Hasan & Bareerah Fatima

8/13/2026

green leafed tree surrounded by fog during daytime

Imagine trying to transplant trees and shrubs as an agroforestry in soil so saline that it damages crops almost immediately, where groundwater lies close to the surface and conventional farming struggles to survive. This is the difficult reality facing many communities across Pakistan’s Southern Indus Basin. The region remains one of the country’s important agricultural zones, producing wheat, sugarcane, cotton, fruits, and other crops, yet salinity and waterlogging are steadily reducing the productivity of large areas of farmland.

The problem has deep historical roots. The expansion of irrigation transformed Pakistan’s arid landscapes, but inadequate drainage allowed groundwater levels to rise in many areas. As water moves toward the soil surface and evaporates under intense heat (high temperature and reference ET), dissolved salts accumulate in the root zone. Over time, crops become increasingly stressed, yields decline, and eventually land may become too saline for conventional agriculture. The result is a costly combination of declining farm incomes, degraded ecosystems, and abandoned or underutilized land.

Pakistan has attempted to address these problems through major engineering interventions, including drainage networks, tube wells, surface drains, and large-scale drainage projects such as the SCARP Projects, Tile Drainage Projects, Right Bank Outfall Drainage and Left Bank Outfall Drainage systems. While such infrastructure can play an important role, its effectiveness depends on continuous maintenance, reliable pumping, functioning drainage channels, and long-term institutional management. Where these systems fail or become too expensive to maintain, salinity can return.

This is where nature-based approaches offer an additional pathway. Certain salt-tolerant trees and shrubs, known as halophytes, can survive conditions that make conventional crops unproductive. Species selected for local soil and water conditions can help stabilize degraded land, provide shade and habitat, reduce wind erosion, and contribute organic matter to soils. Some can also generate economic products such as fuelwood, fodder, timber, fruit, or another biomass.

The opportunity is therefore larger than simply planting trees. Salt-tolerant vegetation can become part of an integrated land-restoration strategy that combines biological approaches with improved drainage, groundwater management, salt-tolerant crops, and community participation. Instead of viewing salt-affected land solely as a problem requiring expensive engineering, Pakistan can begin treating some degraded areas as opportunities for climate-resilient production and ecological restoration.

The transformation will require careful species selection, site-specific research, farmer training, access to planting material, and markets for products generated from restored land. But with the right approach, Pakistan's salty wastelands need not remain economically dead zones. They could become productive landscapes once again, greener, more resilient, and capable of supporting rural livelihoods where conventional agriculture can no longer cope.

The Hidden Power of Trees in Saline Soils

Trees can do something that conventional engineering alone often struggles to achieve they can naturally regulate groundwater. Through deep root systems and continuous transpiration, suitable trees draw water from the soil profile and release it into the atmosphere. This process can lower shallow water tables, reduce waterlogging, and limit the upward movement of salts toward the soil surface. In salt-affected landscapes, therefore, carefully selected trees can become biological tools for land restoration.

Evidence from Pakistan demonstrates the potential of trees and shrub based salinity management. Research conducted in Sindh between 1994 and 1998 found that three- to five-year-old Acacia nilotica trees consumed approximately 1,248-2,225 millimeters of water annually, far exceeding local rainfall and ETo. Their high-water uptake helped lower the water table from about 1.7 meters to more than 2.9 meters, reducing conditions that promote salt accumulation near the surface. Studies in Punjab found that eucalyptus planted at 3 × 3-meter spacing reduced soil salinity by 31-74 percent over five years.

This approach is broadly known as phytoremediation: using plants to manage or remove pollutants and excess salts from degraded environments. In Pakistan's saline areas, however, its value extends beyond environmental restoration. Trees can simultaneously generate biomass, provide fodder or fuelwood, improve microclimates, stabilize soils, and create opportunities for fruit and timber production.

Some of Pakistan's field experiences demonstrate just how powerful this approach can be. The Joint Satiana Pilot Project, launched in 1995 through collaboration among Pakistani and international research organizations, planted approximately 100,000 eucalyptus seedlings and 26,000 saltbushes across 400 hectares of salt-affected land. Within two years, substantial areas had been restored to productive use. The economic results were equally encouraging, with estimated financial rates of return of 30.9 percent for eucalyptus and 27.5 percent for Acacia.

A larger community-based initiative, the Pakistan Community Development Project for Rehabilitation of Saline and Waterlogged Land, operated across 48 villages between 1998 and 2002 and rehabilitated approximately 17,000 hectares. Its most important achievement was combining biological restoration with community organization. Salt Land User Groups and Women's Interest Groups helped farmers adopt integrated approaches involving trees, fish farming, gypsum application, and salt-tolerant crops. A subsequent phase expanded the program substantially, reaching about 80,000 hectares and establishing hundreds of community organizations. The project's asset appreciation was reported at roughly six times the initial investment, while farmer-led rehabilitation ultimately covered an area several times larger than that restored directly by the project.

Perhaps the most striking example comes from the Nawazabad private farm in Mirpurkhas, Sindh. In 1988, soil electrical conductivity reached an extremely high 25.74 dS/m. Decades of carefully managed tree planting and orchard development transformed the landscape into a productive agricultural system. By 2023, despite salinity levels above 12 dS/m in different areas, the farm supported commercially valuable crops. Reported annual returns included about US$660 per hectare from jujube, US$711 from lemon, US$1,777–2,665 from sapodilla, and US$2,446 from date palms. Java plum generated approximately US$4,981 per hectare, while rose cultivation produced about US$4,563 per hectare on less saline land.

These experiences demonstrate that saline land need not remain agricultural wasteland. With appropriate species, water management, farmer participation, and market access, trees can transform degraded landscapes into productive ecosystems while generating income for rural households.

Smart Trees and Farming Practices for Pakistan’s Saline Lands

Not every tree can survive in saline soils, but Pakistan has a remarkable range of species adapted to harsh conditions. Choosing the right species for the level of salinity, waterlogging, soil type, and intended market is therefore the first step toward successful saline agriculture.

Among the most widely used species are Acacia nilotica (kikar) and Eucalyptus camaldulensis. Acacia is valued for timber, fuelwood, and fodder and can tolerate soil electrical conductivity above 10 dS/m. Under good management, a mature plantation can generate significant returns while simultaneously helping regulate groundwater. Eucalyptus is similarly resilient, tolerating soil salinity levels of around 20–30 dS/m and relatively high sodium absorption ratios. Its timber provides an established commercial market, strengthening its economic appeal for land reclamation.

Fruit trees can offer even greater opportunities where local conditions permit. Sapodilla has demonstrated exceptional tolerance, surviving at soil salinity levels above 16 dS/m, and irrigation water salinity levels upto 6 dS/m and producing several kilograms of fruit per tree once established. Jujube, or ber, can tolerate high soil salinity levels even above 16 dS/m, irrigation water salinity levels upto 10 dS/m and require relatively limited maintenance after establishment. Date palms are also well suited to saline environments can tolerate irrigation water salinity levels upto 15 dS/m and can produce substantial yields even when irrigation water contains significant salt concentrations. Java plum offers another promising option, tolerate irrigation water salinity levels upto 12 dS/m with experience from saline farms demonstrating its potential as a high-value fruit crop.

Salt-tolerant shrubs can complement tree-based systems. Saltbush (Atriplex lentiformis) produces useful biomass under highly saline conditions, while Suaeda fruticosa, locally known as lana, can survive extremely saline soils and provide livestock fodder as well as phytoremediation benefits.

Successful saline farming, however, depends on management as much as species selection. Planting density must match the crop and site. Research indicates that eucalyptus performs well at approximately 3 × 3-meter spacing, while wider spacing of around 6 meters can be more appropriate for fruit-tree systems and intercropping. Farmers can use the space between young trees to grow seasonal crops such as berseem, cotton, mustard, or canola, generating income while orchards are developing.

Soil improvement is equally important. Salt-tolerant legumes such as sesbania (jantar) can fix nitrogen and add organic matter when incorporated as green manure. Planting methods can also reduce costs: auger-hole planting, using relatively narrow but deep holes, may require less labor than conventional large planting pits for some fruit trees.

Ultimately, profitability depends on management quality. Studies of eucalyptus production show that well-managed plantations can remain profitable even on saline land, whereas poorly managed plantations on wet, highly saline sites may fail. The lesson is simple: salinity does not automatically make land unproductive; poor management does. With appropriate species, spacing, soil improvement, intercropping, and market planning, Pakistan can turn degraded saline landscapes into productive and economically valuable farms.

Turning Saline Wastelands into Productive Landscapes

Despite encouraging evidence, a major gap remains between research findings and their practical adoption across Pakistan. Much of the work on salt-tolerant trees and bio-saline agriculture has been concentrated in the northern Indus Basin, particularly Punjab, while the Southern Indus Basin where salinity and waterlogging pose some of the country's most serious agricultural challenges has received comparatively less attention. Research and field experience from Tandojam, Sindh, and the Nawazabad farm demonstrate that productive agriculture is possible even under severe salinity. Yet these examples remain largely isolated, and valuable farmer knowledge about species selection, transplantation, soil preparation, irrigation, and orchard management has not been systematically documented or transferred.

Pakistan therefore needs a deliberate strategy to scale up successful approaches. Tree-based phytoremediation should become an important component of saline-land rehabilitation alongside conventional drainage and engineering measures. Government programs can encourage farmers to plant suitable trees and shrubs through technical assistance, subsidized planting material, concessional finance, and performance-based incentives. Community-based approaches like the Bio-Saline project can be adapted for Sindh, allowing farmers to collectively manage degraded land while sharing knowledge, equipment, and market opportunities.

Economic returns must remain central to this strategy. Farmers are more likely to invest in rehabilitation when saline land can generate reliable income. High-value species such as sapodilla, jujube, date palm, eucalyptus, and acacia deserve greater evaluation according to local soil and water conditions. However, production must be accompanied by functioning value chains. Farmers will not adopt commercially promising crops if reliable buyers, processing facilities, transport, and market information are absent.

Research institutions should also expand trials across different salinity levels and agroecological zones, while agricultural extension services translate scientific findings into practical guidance. Most importantly, successful farmers should be treated as sources of innovation rather than merely recipients of technology. Their methods and experiences can provide locally tested solutions that formal research may overlook.

Pakistan cannot afford to allow productive agricultural land to become permanently degraded. By combining scientific research, farmer knowledge, tree-based rehabilitation, market development, and supportive policies, saline landscapes can be transformed from agricultural liabilities into productive assets that strengthen rural livelihoods, environmental resilience, and food security.

Conclusion

Pakistan’s salt-affected lands represent both a serious agricultural challenge and an overlooked opportunity. Salinity and waterlogging are reducing farm productivity across the Indus Basin, but evidence from research and pioneering farms shows that nature-based solutions can help reverse this decline. Salt-tolerant trees, shrubs, and fruit species can lower shallow water tables, reduce salt accumulation, restore degraded soils, and generate valuable products such as timber, fodder, fuelwood, and fruit. Experiences from Satiana, the Bio-Saline projects, and Nawazabad demonstrate that saline-land rehabilitation can deliver both environmental and economic benefits. The next step is to move beyond isolated success stories toward wider adoption, particularly in the Southern Indus Basin. This will require site-specific research, farmer training, community participation, affordable finance, reliable markets, and stronger extension services. By combining scientific knowledge with farmers’ experience, Pakistan can transform saline wastelands into productive landscapes. Greening these lands is therefore not simply an environmental investment, it is an investment in rural livelihoods, agricultural resilience, and national food security.

Please note that the views expressed in this article are of the author and do not necessarily reflect the views or policies of any organization.

The writers are affiliated with the Drainage and Reclamation Institute of Pakistan (DRIP), Pakistan Council of Research in Water Resources (PCRWR) and can be reached at nazargul43@gmail.com

Transforming Salt-Affected Lands in Pakistan

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