Knowledge Graph and Hot Spots about Hani Terrace Based on Bibliometric Method

As one of the world cultural heritage sites, Hani Terrace fields have attracted much attention due to their outstanding farming culture and eco-system．To reveal development context and hot contents of research theme of Hani Terrace, 368 papers published from 2000 to 2021 based on full-text database of CNKI were selected．Bibliometric method was applied to conduct visual analysis and statistics from number of papers, subject distribution, core authors, research institutions and research hot spots．Results showed that, from overall development perspective, related research in field of Hani Terrace had entered a stage of stable development．The research focused on agricultural engineering, tourism and culture．Authors from three main groups were lack of cooperation between research institutions．Research contents were rich and diverse, with main keywords of agricultural cultural heritage, cultural landscape, sustainable development, farming culture, protection, and development．According to development context, research field of Hani Terrace could be divided into three stages, including germination stage（2000—2005）, development period（2006—2016）and stability period（2017—2021）．In terms of research trends, research hotspot focused on terrace culture, natural geographical characteristics, irrigation area, water conservancy, cultural landscape, ecological tourism and other contents, and then expanded to tourism influence, traditional villages and heritage protection．