Suitability mapping framework for solar photovoltaic pumps for smallholder farmers in sub-Saharan Africa
Suitability mapping framework for solar photovoltaic pumps for smallholder farmers in sub-Saharan Africa
复制标题
撒哈拉以南非洲小农户太阳能光伏水泵适宜性测绘框架
DOI：
10.1016/j.apgeog.2018.02.008
复制
发表时间：
2018
影响因子：
4.9
通讯作者：
J. Barron
中科院分区：
文献类型：
--
作者：
P. Schmitter;Kefyalew Sahle Kibret;N. Lefore;J. Barron
随着太阳能电池板变得越来越便宜，太阳能光伏（PV）泵已被确定为满足撒哈拉以南非洲（SSA）日益增长的灌溉需求的高潜力提水技术。然而，人们对太阳能光伏抽水灌溉的地理空间潜力知之甚少，不仅考虑到太阳辐射，而且考虑到水资源的可用性和与市场的联系。这项研究开发了一个适用性框架，在开源地理信息系统（GIS）环境中使用多标准分析，并在埃塞俄比亚的情况下进行了测试。水资源的可获得性是不同情景的驱动因素。地下水情景的适用性结果与现有的参考井深数据吻合良好。将适宜性地图与现有土地利用数据进行比较，结果表明，埃塞俄比亚平均9%（96103公顷）的灌溉土地和18%（3739103公顷）的灌溉土地适合太阳能光伏水泵灌溉。此外，小型太阳能光伏水泵可以成为目前和未来小农农场（2，166，103公顷）11%的小型机动碳氢燃料泵的替代提水技术。根据技术水泵能力，155 103公顷至204 103公顷的土地将适合安装太阳能光伏水泵，并为小农提供从小型水库或浅层地下水抽水的选择。随着对发展小农灌溉的持续兴趣，这一模式的应用将有助于以综合方式为撒哈拉以南非洲的小农提升太阳能光伏水泵作为气候智能型技术。
As solar panels become more affordable, solar photovoltaic (PV) pumps have been identified as a high potential water-lifting technology to meet the growing irrigation demand in sub-Saharan Africa (SSA). However, little is known about the geo-spatial potential of solar-based PV pumping for irrigation taking into account not only solar radiation but also the availability of water resources and linkage to markets. This study developed a suitability framework using multi-criteria analysis in an open source geographic information system (GIS) environment and tested it in the case of Ethiopia. The accessibility of water resources was the driving factor for different scenarios. Suitability results following the groundwater scenarios showed good agreement with the available referenced well depth data. Comparing the suitability maps with available land use data showed that on average 9% (96 103ha) of Ethiopian irrigated and 18% (3,739 103ha) of rainfed land would be suitable for solar PV pump irrigation. Furthermore, small solar PV pumps could be an alternative water-lifting technology for 11% of the current and future small motorized hydrocarbon fuel pumps on smallholder farms (2,166 103ha). Depending on the technical pump capacity, between 155 103ha and 204 103ha of land would be suitable for solar PV pumps and provide smallholder farmers with the option to either pump from small reservoirs or shallow groundwater. With the ongoing interest in development for smallholder irrigation, the application of this model will help to upscale solar PV pumps for smallholder farmers in SSA as a climate-smart technology in an integrated manner.
影响因子：
4.8
作者：
Arnell, N. W.;Brown, S.;Zelazowski, P.
通讯作者：
Zelazowski, P.