Comparative environmental life cycle assessment of two seaweed cultivation systems in North West Europe with a focus on quantifying sea surface occupation
Comparative environmental life cycle assessment of two seaweed cultivation systems in North West Europe with a focus on quantifying sea surface occupation
复制标题
西北欧两种海藻养殖系统的环境生命周期比较评估，重点是量化海面占用
DOI：
10.1016/j.algal.2015.06.018
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发表时间：
2015
影响因子：
5.1
通讯作者：
J. Dewulf
中科院分区：
文献类型：
--
作者：
S. Taelman;J. Champenois;M. Edwards;S. Meester;J. Dewulf
对自然资源枯竭的环境关切导致了更多可再生资源的种植，如海藻生物质。由于欧洲的种植仍处于早期阶段，对环境可持续性的估计可能会通过突出其竞争力来促进该部门的进一步发展。对爱尔兰西海岸（18公顷的浮延绳）和法国（0.6公顷的筏系统）附近的阔鳍金枪鱼生产的资源足迹进行了案例研究。采用自然环境累积提取法（CEENE），对8种自然资源（包括：海洋资源）生产1兆焦耳生物量。对于爱尔兰和法国，生态生命周期评估（ELCA）的结果分别为1.7 MJexMJex− 1和8.7 MJexMJex− 1。微藻和几种陆生植物（甜菜、玉米和土豆）的足迹值通常在0.92-3.88 MJexMJex− 1之间，与之相比，西北欧（特别是爱尔兰）的海藻生产相对具有资源效率。此外，研究了改善海藻生产的资源足迹的潜力;在短期内，海藻可以与几种陆地植物的生命周期资源需求相当。
Environmental concerns regarding natural resource depletion have led to the cultivation of more renewable resources such as seaweed biomass. As the cultivation in Europe is still in its early stages, an estimation of the environmental sustainability may boost further development of this sector by highlighting its competitiveness. A case study on the resource footprint ofSaccharina latissimaproduction near the West coast of Ireland (18 ha of floating longlines) and France (0.6 ha of raft systems) is performed. The Cumulative Exergy Extraction from the Natural Environment (CEENE) method is used to quantify the exergy deprived from 8 types of natural resources (incl. marine resources) to produce 1 MJexbiomass. For Ireland and France, results of the Exergetic Life Cycle Assessment (ELCA) are 1.7 MJexMJex− 1and 8.7 MJexMJex− 1, respectively. Compared to the footprint of microalgae and several terrestrial plants (sugar beets, maize and potatoes), typically showing values in the range of 0.92–3.88 MJexMJex− 1, seaweed production in North West Europe (especially in Ireland) is relatively resource-efficient. Moreover, the potential to improve the resource footprint of seaweed production is investigated; in the short-term, seaweed can be cultivated with a comparable life cycle resource demand as several land plants.