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Desertification and the social sciences

机译:荒漠化与社会科学

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in ecosystem productivity ending in irreversible land degradation-that is, desertification (Safriel & Adeel, 2005, 645). The paradigm holds that population growth intensifies pressure on drylands, that overgrazing and the expansion of land under the plough leads to such land degradation (Tolba, 1992, 58). Put more explicitly, according to the World Bank, the Sudano- Sahel belt, ‘features one of the most rapid annual population growth rates of the continent, despite the fact that in many areas the mainly rural population... is already beyond the carrying capacity at current technological levels. This growth has resulted in a downward spiral of extensive land degradation and fuelwood shortage’ (World Bank, 1996: 24).
机译:生态系统生产力的提高最终导致不可逆转的土地退化,即荒漠化(Safriel&Adeel,2005,645)。该范式认为,人口增长加剧了对旱地的压力,过度放牧和耕作下的土地扩张导致土地退化(Tolba,1992,58)。根据世界银行的说法,更明确地说,“苏达诺-萨赫勒地带”是非洲大陆最快的年度人口增长率之一,尽管事实上,在许多地区,主要是农村人口……已经超出了承受能力。在当前技术水平上的产能。这种增长导致土地大量退化和薪材短缺的螺旋式下降”(世界银行,1996:24)。

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