Dataset of literature review of financial barriers to Nature-based Solutions

The full description of the methodology can be found in the corresponding research article (to be added once published).<br>From the sample of articles (n=34) that was selected through a structured search, text fragments which describe either a barrier or an enabling condition (a condition that was identified to facilitate the implementation) are highlighted line by line and extracted. Next each text fragment received an individual code that captured the essence of the text fragment in a few words or a sentence. Some text fragments captured multiple barriers, and thus received more than one code. This coding approach facilitated the process of inductive reasoning rather than employing a range of initial pre-defined codes.<br>The coded text fragments were then printed and cut to individual cards, creating a ‘pile’ of cards. Using inductive reasoning, each card was read and then categorized into broader themes. The themes emerged, and were named, during the process of categorizing the pile of cards. After all the cards had been categorized into initial themes, the cards in each theme were re-examined.<br>The next step in the process is the interpretation, or sense-making, of the barriers and the overarching themes. Narratives, or thematic descriptions of each theme were developed (these can be found in the corresponding research article). This step involved frequently returning to the original texts to verify the interpretation of the selected fragments and codes. A number of key topics were identified within each theme. Based on the narratives and key topics, the original themes and subthemes were then refined. Given the transdisciplinary and interpretive nature of the approach, the positioning and naming of the topics within the different (sub) themes is debatable. Arguments can be found for the positioning of a specific topic within more than one sub-theme or theme or an alternative naming of overarching themes. However, the themes remained stable throughout the process; it was the sub-themes that became subject to discussion and iterative revision.<br>

本研究方法的完整阐述可参阅待正式刊发的对应研究论文（论文发表后将补充完整内容）。
通过结构化检索筛选得到的34篇文献样本中，逐行标记并提取了描述实施障碍或赋能条件（即经确认可推动落地实施的条件）的文本片段。随后，为每一条文本片段分配独立编码，以少数词汇或单句凝练该片段的核心要义。部分文本片段同时涵盖多种障碍，因此被赋予多个编码。此编码方式更契合归纳推理的研究路径，而非预先设定一系列固定编码。
将编码完成的文本片段打印并裁为单张卡片，形成一摞编码卡片。基于归纳推理，逐张阅读卡片并将其归至更宽泛的主题类别中。主题类别在卡片归类的过程中逐步浮现并完成命名。待所有卡片均被归入初始主题后，再对每个主题下的卡片进行重新核验。
研究的下一步为对实施障碍与核心主题进行阐释，即意义建构。针对每个主题形成叙事性描述或主题阐释（完整内容可参阅对应研究论文）。该步骤需反复回溯原始文本，以核验针对筛选出的文本片段及编码的阐释合理性。每个主题下均识别出若干关键议题。基于叙事描述与关键议题，对初始主题与子主题进行优化完善。鉴于本研究方法的跨学科性与阐释性本质，不同（子）主题内议题的归属与命名均存在一定争议：某一特定议题可被归入多个子主题或主题，核心主题也可采用其他命名方式。但整个研究过程中核心主题始终保持稳定，仅子主题成为讨论与迭代修订的对象。