By Jagdish Chander Dagar, Paramjit Minhas
Land degradation attributable to salinity and waterlogging is a world challenge afflicting approximately a billion hectares and endangering the meals safety of not less than seventy five nations. because the social, financial and environmental expenses of on and/off-farm reclamation strategies are excessive, agroforestry is now rising as a possible software, not just for arresting salinity and waterlogging, but additionally for different environmental companies like mitigating weather switch, sequestering carbon and restoring biodiversity. This ebook addresses the important matters, ideas and practices regarding rehabilitation utilizing agroforestry and comprises many site-specific case experiences from the various world’s commonplace catchments. Written by way of prime researchers, the e-book is a needs to, not just for scientists whose examine pursuits lie in soil salinity, waterlogging and poor-quality waters, but additionally coverage makers, environmentalists, scholars, and educationists alike. extra importantly, it contributes to reversing the salinity traits and making sure the livelihoods of resource-poor farming households dwelling in those harsh agro-ecosystems.
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Extra resources for Agroforestry for the Management of Waterlogged Saline Soils and Poor-Quality Waters
This approach will change the economical scenario by reducing the import of fossil fuels. As discussed above, trees play a vital role both in lowering down water table and sequestering carbon. Adopting biosaline agroforestry, the nomadic behaviour of large population will be checked in dry regions. There is a need to change policies and tilting these towards agroforestry. Agroforestry on salt-affected lands will not only bring these lands under economic utility but also will release pressure on forest resources and through environmental services should help in mitigating climate change.
Malcolm (1993) and Barrett-Lennard (2003) reported that samphires (Halosarcia pergranulata, H. lepidosperma and H. indica subsp. bideris) and bluebush (Maireana brevifolia) are a group of highly salt-tolerant succulent perennial shrubs, which could be grown on waterlogged saltlands in Australia. H. pergranulata contains about 14 % crude protein on oven-dry basis and is better suited to sheep grazing. Halophytes have been considered as potential crops for reuse of saline drainage water in the western portion of the San Joaquin Valley of California.
2002). Experiences on Afforestation/Agroforestry of Alkali/Sodic Soils The sodic soils represent about 52 % of the total salt-affected soils in the world. 2) and sodicity (ESP > 15) and containing soluble carbonates and bicarbonates of sodium such that Na/Cl + SO4 > 1 (Gupta and Abrol 1990). g. sodium and boron). Unlike soil reclamation for arable crops, where only plough layer is sought to be improved in the first instance, deep-rooted trees require reclamation of the soil to lower depths. The planting techniques should further ensure efficient utilization of rainwater and leaching of reaction products after interaction of amendments and help to root development in the soil profile and soil structural improvement for increased water retention to encourage rapid root penetration in the vertical rather than horizontal direction and minimize direct sodium toxicity hazards.
Agroforestry for the Management of Waterlogged Saline Soils and Poor-Quality Waters by Jagdish Chander Dagar, Paramjit Minhas