ABSTRACT

Based on extensive field information, farmer-led small-scale irrigation systems along the dam-regulated Tekeze River is investigated and the likelihood of future irrigation expansion within the area with modelled potential is discussed, considering facilitating and hampering factors. Due to dam-induced hydrologic alterations, downstream socio-ecological systems have strongly transformed as the irrigated area has quadrupled and the post-dam potential for perennial crop cultivation has attracted numerous migrant investors to the area, inducing inequalities but also providing opportunities. Future dam construction should involve tailored policy interventions to facilitate irrigation expansion, while safeguarding equal and sustainable access to water and land.

摘要

根据广泛的田间信息，对受大坝调节的特克泽河沿岸农民主导的小规模灌溉系统进行了调查，并讨论了在具有模拟潜力的区域内未来灌溉扩展的可能性，同时考虑了促进和阻碍因素。由于大坝引起的水文变化，下游社会生态系统发生了强烈转变，灌溉面积翻了两番，大坝后多年生作物种植潜力吸引了众多移民投资者到该地区，在造成不平等的同时也提供了机会。未来的大坝建设应涉及量身定制的政策干预措施，以促进灌溉扩张，同时保障平等和可持续地获得水和土地。