1.2.1. Sources

Because there is no authoritative definition of industrial heritage reconstruction and reuse, the relevant research results have been scattered. To avoid omitting important documents, the scope of industrial heritage reconstruction and reuse must be appropriately expanded. First, based on common terms and concepts found in the literature related to industrial heritage and reconstruction and reuse, we created thematic keywords, which include industrial heritage, industrial architecture, industrial land, and industrial brownfield, and object keywords, which include reuse, reconstruction, renewal, and regeneration. Then, we grouped and classified these keywords to form 16 search strategies, as shown in Figure 2. Next, we used these strategies to search the literature that was published in the past five years (2017–2022) in the main retrieval channels of three types of literature: books and monographs (mainly Worldcat, Goodreads, Amazon, Z-Library, and Google Books), dissertations (mainly Worldcat and Google Scholar), and journal papers and conference papers (mainly Google Scholar, Web of Science, CNKI (China national knowledge infrastructure), and Worldcat). Eventually, 404 effective search results were obtained after preprocessing, by which duplicates and irrelevant documents were removed. We then analyzed the documents retained. According to our statistics, books and monographs account for 15.6% of our data sample, dissertations account for 17.1%, and journal papers and conference papers account for 67.3%. Moreover, the language distribution of the search results is wide, which reflects that research on industrial heritage reconstruction and reuse has been global in the past five years, as shown in Figure 3.

**Figure 2.** Research retrieval strategies (by author).

**Figure 3.** Language distribution of 404 literature samples (by author).
