Progress and Prospects of Research on Microhabitat Scale Characterization and Utilization in Chinese Karst Area

Karst microhabitats, characterized by their complex structures and unique functions, serve as critical habitats and resource reservoirs for biodiversity. However, systematic research in this area remains limited. This study conducts a systematic literature review based on publications from the China National Knowledge Infrastructure (CNKI) and Web of Science (WOS) databases, with a focus on karst microhabitats in China. The objectives are to synthesize domestic research progress and compare it with international studies to enhance the understanding of microhabitats. The findings reveal that: (i) the number of publications on this topic has generally increased, with CNKI literature predominantly centered on karst and microhabitat entities (47% of the total), whereas WOS publications place greater emphasis on biodiversity within microhabitats (24%); (ii) key advances and landmark findings from studies conducted at different scales in Chinese karst regions are highlighted, along with a summary of critical scientific issues; and (iii) representative techniques applicable to karst microhabitats in China are evaluated, drawing on international research experience and their adaptive outcomes. Moving forward, research on karst microhabitats in China should prioritize quantitative analysis of subsurface spatial characteristics and integrate interdisciplinary approaches to elucidate resource allocation mechanisms.