There have been many researchers investigating the strategies to optimize the quality and yield of the flower. However, only a small number is concerned with the environmental impacts of cut flowers from the growing facility to the end consumer, and no such review has been documented in the literature. As a result, this study attempts to review the life cycle assessment (LCA) studies for the cut flower to achieve a comprehensive and minimally biased overview. Based on the literature review, there is no consensus on which functional unit (FU) is the most suitable, but a majority of studies use pieces of product (number of stems in the case) as a FU to evaluate the environmental impacts, when post-harvest handling and consumer stages are usually excluded in the system boundary. It is also found that carbon footprint, or global warming potential (GWP) is the primary indicator the researchers focus on, and energy is another important factor. The inconsistencies of LCA parameter selections, together with the various flower species and cultivation methods, challenge the comparisons of environmental performance. Aiming to enhance the environmental sustainability in the industry, it is proposed to advance technology in the greenhouse system, implement integrated nutrient and pest management, introduce the certificate and label for cut flowers, develop sea transport with the refrigerated container, and raise consumer's perception to the environmental impact. Compared with studies of other products, research on LCA of cut flowers is laid behind. There is still a room for improvement in terms of LCA of cut flowers, since the issues such as allocation, waste treatment, and uncertainty analysis have not been explored yet. This review suggests that indicators such as water usage, chemicals, land use, and waste not included in CML methodology are also significant. Besides, analyses focusing on post-harvest handling and consumer stages should be carried out in the future.

许多研究人员正在研究优化花卉质量和产量的策略。然而，只有少数人关注切花从种植设施到最终消费者对环境的影响，并且文献中没有这样的评论。因此，本研究试图回顾切花的生命周期评估 (LCA) 研究，以实现全面且偏差最小的概述。根据文献回顾，对于哪种功能单元 (FU) 最合适尚无共识，但大多数研究使用产品件（案例中的茎数）作为 FU 来评估环境影响，当发布-收获处理和消费者阶段通常被排除在系统边界之外。还发现碳足迹，或全球变暖潜能值（GWP）是研究人员关注的主要指标，而能源是另一个重要因素。LCA 参数选择的不一致，以及各种花卉种类和栽培方法，对环境性能的比较提出了挑战。为提高行业的环境可持续性，建议推进温室系统技术，实施营养和病虫害综合管理，引入切花证书和标签，发展冷藏集装箱海运，并提高消费者对环境影响的认知。与其他产品的研究相比，切花的LCA研究相对滞后。由于分配、废弃物处理、不确定性分析等问题尚未探索，切花LCA仍有提升空间。该审查表明， CML 方法中未包括的用水量、化学品、土地利用和废物等指标也很重要。此外，未来应进行针对收获后处理和消费阶段的分析。