Modeling Net Land Occupation of Hydropower Reservoirs in Norway for Use in Life Cycle Assessment
Modeling Net Land Occupation of Hydropower Reservoirs in Norway for Use in Life Cycle Assessment
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DOI：
10.1021/acs.est.7b05125
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发表时间：
2018-02-20
影响因子：
11.4
通讯作者：
Verones, Francesca
中科院分区：
文献类型：
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作者：
Dorber, Martin;May, Roel;Verones, Francesca
增加水力发电是减轻气候变化影响的一个独特机会。然而，水力发电也通过淡水生境改变、水质退化、土地利用和土地利用变化（LULUC）影响水生和陆地生物多样性。目前，还没有一种操作模型能够涵盖生命周期评估（LCA）中的任何这些因果路径。本文有助于在LCA中评估挪威水电生产的LULUC影响。利用遥感数据量化了107座水电站的淹没土地面积，并将其与年发电量联系起来。据此，我们计算出平均净占地面积为0.027 m(2)。年/千瓦时挪威蓄能水电站的生命周期库存。此外，我们计算出调整后的平均土地占用为0.007 m(2)。yr/kWh，在执行的最大似然分类中对水域面积的低估。计算得到的土地占用值是支持开发水电对LCA生物多样性在破坏水平上的土地占用影响评估方法的基础。
Increasing hydropower electricity production constitutes a unique opportunity to mitigate climate change impacts. However, hydropower electricity production also impacts aquatic and terrestrial biodiversity through freshwater habitat alteration, water quality degradation, and land use and land use change (LULUC). Today, no operational model exists that covers any of these cause-effect pathways within life cycle assessment (LCA). This paper contributes to the assessment of LULUC impacts of hydropower electricity production in Norway in LCA. We quantified the inundated land area associated with 107 hydropower reservoirs with remote sensing data and related it to yearly electricity production. Therewith, we calculated an average net land occupation of 0.027 m(2).yr/kWh of Norwegian storage hydropower plants for the life cycle inventory. Further, we calculated an adjusted average land occupation of 0.007 m(2).yr/kWh, accounting for an underestimation of water area in the performed maximum likelihood classification. The calculated land occupation values are the basis to support the development of methods for assessing the land occupation impacts of hydropower on biodiversity in LCA at a damage level.