Lesson 4 – Spatial modelling of salt-affected soils

Omuto, C.T., Vargas, R., Viatkin, K., Yigini, Y.

Lesson 4 – Spatial modelling of salt-affected soils

Global Soil Salinity Map – GSSmap

Year of publication 2020

Place of publication Rome, Italy ;

Pages 14 p.

Author Omuto, C.T., Vargas, R., Viatkin, K., Yigini, Y.

Publisher FAO ;

Product type Brochure, flyer, fact-sheet

Edition 1

Full item page

Synopsis (short abstract) This lesson is the fourth step of the capacity-building program, which is designed to build national capacities as well as harmonize procedures for developing information of salt-affected soils at the national and global levels. The overall goal of this lesson is to support participants in developing national maps of salt-affected soils. At the end of it, the participants are expected to produce national maps of salt-affected soils in their countries.

Language English

Also available in:

Spanish

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This Lesson is the first step of the capacity-building program, which is designed to build nation capacities as well as harmonize procedures for developing information of salt-affected soils at the national and global levels. The overall goal of this Lesion is to support participants in preparing input data and computing requirements for assessing salt-affected soils at the national level. At the end of the lesson, the participants are expected to have well-developed operational database and tools for mapping salt-affected soils in their countries.
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Lesson 3 – Spatial modelling of soil indicators (properties) related to salt problems
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This lesson is the third step of the capacity-building program, which is designed to build national capacities as well as harmonize procedures for developing information of salt-affected soils at the national and global levels. The overall goal of this guide is to support participants in developing spatial gridded maps of soil properties (indicators) related to salt-affected soils at the national level. At the end of the lesson, the participants are expected to have technical capacity in generating spatial information on soil indicators of salt-affected soils in their countries.
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The development of agricultural technologies and a better appreciation of the existing but under-utilised knowledge of resource management will be crucial in meeting the ecological needs and in achieving the anticipated food demands of the growing population in the future. The greatest challenge for the coming decades lies in the fact that the production environments are unstable and degrading. Land degradation is proceeding so fast that unless policies and approaches change, many countries will not be able to achieve sustainable agriculture in the foreseeable future. Soil salinization has been identified as a major process of land degradation. The greatest technical causes of decreasing production on many irrigated projects particularly in arid-semi-arid areas, or failure of large areas in rainfed agriculture, are waterlogging, salinization and sodication.