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首页> 外文期刊>Bioenergy research >Land Use Implications of Increased Biomass Production Identified by GIS-Based Suitability and Yield Mapping for Miscanthus in England
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Land Use Implications of Increased Biomass Production Identified by GIS-Based Suitability and Yield Mapping for Miscanthus in England

机译：基于GIS的英格兰芒草适宜性和产量分布图确定的生物量生产增加的土地利用含义

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摘要

The need for climate change mitigation and to meet increasing energy demands has led to a rise in the land area under bioenergy crops in many countries. There are concerns that such large-scale land conversion will conflict with food production and impact on the environment. Perennial biomass crops could be grown on more marginal agricultural land. However, for sustainable solutions, biomass yields will need to be sufficient and the wider implications of land-use changes considered. Here, focusing on Miscanthus in England as an example, we combined an empirical model with GIS to produce a yield map and estimated regional energy generation potentials after masking out areas covered by environmental and socio-economic factors which could preclude the planting of energy crops. Agricultural land quality and the distributions of currently grown food crops were then taken into account. Results showed that: (ⅰ) regional contrasts occur in the importance ofrndifferent factors affecting biomass planting; (ⅱ) areas with the highest biomass yields co-locate with food producing areas on high grade land, and; (ⅲ) when such high grade land and unsuitable areas are excluded, a policy-related scenario for increased planting on 350,000 ha utilised 4-28% (depending on the region) of lower grade land and would not necessarily greatly impact on UK food security. We conclude that the GIS-based yield and suitability mapping described here can help identify important issues in bioenergy generation potentials and land use implications at regional or finer spatial scales that would be missed in analyses at the national level.
机译：减轻气候变化和满足不断增长的能源需求的需求导致许多国家生物能源作物种植的土地面积增加。令人担忧的是，如此大规模的土地转换将与粮食生产相冲突并影响环境。多年生生物量作物可以在边际农业土地上种植。但是，对于可持续解决方案，生物量产量将需要足够，并考虑土地利用变化的更广泛影响。在此，以英国的芒斯坎为例，我们将经验模型与GIS相结合，以绘制出产量图，并在掩盖了可能妨碍种植能源作物的环境和社会经济因素所覆盖的地区之后，估算了区域的能源生产潜力。然后考虑了农业土地质量和目前种植的粮食作物的分布。结果表明：（ⅰ）影响生物量种植的不同因素的重要性之间存在区域差异； （ⅱ）生物量产量最高的地区与高等级土地上的粮食生产区位于同一地点，并且； （ⅲ）如果排除了此类高等级土地和不合适的地区，则在政策相关的情况下增加350,000公顷的播种面积会利用4-28％（取决于地区）的低等级土地，并不一定会对英国的粮食安全产生重大影响。我们得出的结论是，此处描述的基于GIS的产量和适用性制图可以帮助您识别区域或更精细空间尺度上生物能源发电潜力和土地使用影响的重要问题，而这在国家层面的分析中将被忽略。

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  • 来源
    《Bioenergy research》 |2009年第2期|17-28|共12页
  • 作者

    Andrew A. Lovett; Gisela M. Suennenberg; Goetz M. Richter; A. Gordon Dailey; Andrew B. Riche; Angela Karp;

  • 作者单位

    School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK;

    School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK;

    Centre for Bioenergy and Climate Change, Soil Science Department, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, UK;

    Centre for Bioenergy and Climate Change, Soil Science Department, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, UK;

    Centre for Bioenergy and Climate Change, Plant and Invertebrate Ecology Department, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, UK;

    Centre for Bioenergy and Climate Change, Plant and Invertebrate Ecology Department, Rothamsted Research, Harpenden, Hertfordshire AL5 2JQ, UK;

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  • 正文语种 eng
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  • 关键词

    biomass; land-use; GIS; suitability maps; miscanthus x giganteus;

    机译：生物质土地利用;地理信息系统适用性图;miscanthus x giganteus;

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