School of Environmental Sciences , University of KwaZulu-Natal , Westville , South Africa.
Interface Focus. 2011 Apr 6;1(2):263-70. doi: 10.1098/rsfs.2010.0022. Epub 2011 Feb 2.
This paper synthesizes lessons learnt from research that aimed to identify land in the dryland regions of eight sub-Saharan African study countries where bioenergy feedstocks production has a low risk of detrimental environmental and socio-economic effects. The methodology involved using geographical information systems (GISs) to interrogate a wide range of datasets, aerial photograph and field verification, an extensive literature review, and obtaining information from a wide range of stakeholders. The GIS work revealed that Africa's drylands potentially have substantial areas available and agriculturally suitable for bioenergy feedstocks production. The other work showed that land-use and biomass dynamics in Africa's drylands are greatly influenced by the inherent 'disequilibrium' behaviour of these environments. This behaviour challenges the sustainability concept and perceptions regarding the drivers, nature and consequences of deforestation, land degradation and other factors. An assessment of the implications of this behaviour formed the basis for the practical guidance suggested for bioenergy feedstock producers and bioenergy policy makers.
本文综合了从研究中吸取的经验教训,这些研究旨在确定撒哈拉以南非洲八个研究国家干旱地区的土地,在这些土地上生产生物能源原料的环境和社会经济负面影响风险较低。该方法涉及使用地理信息系统(GIS)来询问各种数据集、航空照片和现场核查、广泛的文献综述,并从广泛的利益相关者那里获取信息。GIS 工作表明,非洲旱地可能有大量的土地可供利用,并且在农业上适合生产生物能源原料。其他工作表明,非洲旱地的土地利用和生物质动态受到这些环境固有“失衡”行为的极大影响。这种行为挑战了可持续性概念以及对森林砍伐、土地退化和其他因素的驱动因素、性质和后果的看法。对这种行为的影响进行评估,为生物能源原料生产者和生物能源政策制定者提出了实用建议。