Salinization in Drylands
Most commonly in drylands the salinity levels are always high and evenly dispersed due to this salinity levels the plant cultivated are usually tremendously affected. Normal plants cannot grow in soils with high salinity levels. In this book the authors would like to analyze the effects of human activities on the salinity levels in drylands.
Dryland salinity is a natural process for soil, just like other processes such as wind erosion. Salinity degrades land by an increase in soil salt concentration in the environment, watercourse or soil in not irrigated landscapes, being in excess of normal soil salt concentrations in dryland regions.
Land productivity may be limited in salt-affected areas due to the toxicity of dissolved salts for plants or due to the destruction of soil structure that then restricts water infiltration capacity. Soil salinity is site-specific. Interventions may be prohibitively expensive and must be carefully managed. Saline soils may be treated by improving sub-surface drainage and applying sufficient water to move salts out of the root zone. Sodic or alkali soils can be treated through the application of chemical biological amendments, such as gypsum, along with organic manure.
Adoption of crop-rotation systems using salt-tolerant crops (halophytes), followed by legumes and avoiding fallow periods may improve the soil resource. For example, Quinoa (Chenopodium quinoa Willd), a salt-tolerant crop, is widely used in saline environments.
A large proportion of salt-affected soils in irrigated areas occur on small farms with limited access to resources. Many affected farmers must supplement their low on-farm income with off-farm economic activities. This potentially limits their ability to invest in many salinity management opportunities.
Salinization in Drylands (Photobooks of Dryland Series vol. 4 ) published by Arid Land Research Center Tottori University/Imai Print Co.Ltd in Japan/ Editors Prof. Yamanaka and Prof. Dr.Toderich)
- Salinization in Drylands ( Photobooks of Dryland Series vol. 4)
- Salinity-related desertification and management strategies: Indian experience
- Reversing Salt-Induced Land Degradation Requires Integrated Measures
- Soil salinization /from World Atlas of Desertification 2018
- The Land in Drylands ( GLO Working paper)
- Global Land Outlook Chapter 12 Drylands
- Dryland Salinity and Landscape Restoration , International Platform for Research and Education (IPDRE),Tottori University
- Prof. Yamanaka Norikazu
- Prof. Dr. Kristina Toderich list of publications
- More publications, articles etc from UNCCD Library on the issue of salinization;