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Farming systems and food production in the Volta Basin

机译：沃尔塔盆地的耕作制度和粮食生产

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摘要

The predominantly rural population in the Volta Basin depends on rainfed crops, a practice which becomes increasingly risky as the rainfall decreases from south to north and rural poverty increases. Yields are low throughout because of drought and dry spells within the growing season, infertile soils, low inputs, poor infrastructure, and low labour productivity. Water-related diseases are widespread and half of all rural households depend on low-quality water. Fertilizer and small-scale irrigation can improve the yields of rainfed crops and alleviate poverty, but the duality between the legal state and the traditional hierarchy complicates land tenure by hindering investment. Small-scale irrigation has little effect on hydropower dams downstream.
机译：沃尔塔盆地主要的农村人口依靠雨养作物，随着降雨从南向北减少以及农村贫困加剧，这种做法的风险越来越大。由于生长期干旱和干旱，土壤贫瘠，投入低，基础设施差和劳动生产率低，整个时期的单产较低。与水有关的疾病很普遍，所有农村家庭的一半依靠劣质水。化肥和小规模灌溉可以提高雨养作物的产量并减轻贫困，但是合法国家与传统等级制之间的二重性通过阻碍投资使土地使用权复杂化。小规模灌溉对下游水电大坝影响不大。

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