 Back to Badia Benchmark
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| LIBYA | |
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Background Similar to several other countries in WANA, Libya is experiencing severe water shortages that increase with time. In addition to the development and expansion of wastewater treatment, desalination and water transfers through the Man-made River Project, more attention should be given to the old renewable resources of rainwater harvesting (WH) technology. Objectives The long-term project objective is to improve the standard of living of the countryside and badia of the Northeastern and Northwestern regions of the country. This can be achieved, at least in part, through the introduction and adoption of the most appropriate WH techniques to their physical and socioeconomic environments. The immediate and short-term objectives, however, are expected to include:i. The testing of a selected set of WH techniques in order to establish their long-term validity and usefulness to the targeted areas. ii. The introduction, adoption and transfer of tested WH techniques to farmers then convincing pilot demonstration models that enhance their adoption. iii. Building and improvement of the technical and organizational capacities of the national research institutes and programs of the participating countries in the project. iv. Enhancement of training programs and collaborations with international institutions like ICARDA. Output i. Guidelines for re-evaluation of the bench terraces ii. Technology for widespread adoption iii. A demonstration model for mountain lakes iv. Guidelines of an effective water conservation technique. Site Selection The selected activities will be implemented in the Northeastern and Northwestern regions of the country where annual rainfall exceed 150 mm. Activities i. Re-evaluation of the design, performance and effectiveness of the contour-ridge terrace in achieving their intended objective. ii. The construction of three pilot demonstration models of cisterns that represent the ancient Greck model, the traditional local model and the modern concrete design model. iii. The introduction and expansion of small size mountain lakes starting with the design and construction of a demonstration model in a suitable site within one of the potentially promising watersheds. iv. The design and construction of sand and/or rock-filled model dam reservation to reduce evaporation losses. Methodology i. Collection and analysis of topographic maps, aerial photos and soil surveys. ii. Collection of long-term historical rainfall data in the targeted watersheds. Rainfall analysis in term of spatio-temporal distribution and infiltration run-off hydrolographs. Establishing evaluation criteria based on hydrology, vegetation cover, soil depth and erosion control. Evaluation of the legal and socioeconomics aspects spatially that related to land tenure. iii. Site selection based on topographic maps and rainfall analysis. Soil and land suitability of the construction sites. Selection and availability of construction materials. Design and construction of three models according to the prevailing conditions. iv. Comprehensive collection and analysis of hydrological, topographic and edaphic data related to the targeted watershed. Assessment of the socioeconomic and legal constraints imposed on site selection options. Hydraulic design and implementation of appropriate techniques to reduce and control water losses through deep seepage and evaporation. Evaluation of the technical and economic feasibilities as compared with other WH options.
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