Affiliation:
1. Xinjiang Production & Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, Tarim University, Alar 843300, China
2. School Life Sciences & Engineering, Southwest University Science & Technology, Mianyang 621010, China
3. School Environment & Resources, Southwest University Science & Technology, Mianyang 621010, China
Abstract
Populus euphratica is the only tall tree species that adapts to the desert environment. It has strong drought tolerance and is the subject of extreme concern at home and abroad. After 30 years of development, the scope of research on Populus euphratica is very extensive, but the research content has not yet been crystalized into a mature field, and research directions at home and abroad differ. In this study, we retrieved research references on ‘P. euphratica’ published from 1992 to 2022 in both the China National Knowledge Infrastructure core journals database and the Web of Science core collection database, and CiteSpace software was employed to conduct keyword-centered bibliometric analysis in both the spatial and temporal dimensions. The purpose of this study is to clarify the research areas, developmental changes, differences between domestic and international research priorities in the last 30 years, and future trends in the field of P. euphratica research. The results show that there were 1619 domestic papers published in China related to the field of P. euphratica research, while there were only 656 foreign papers in the same field. The development of domestic P. euphratica research went through three stages initiation (1992–2000), growth (2001–2008) and stability (2009–2021), whereas no significant international trend change was observed. The domestic disciplines focus on biology, while international research focuses on crop science. In terms of content, domestic research focuses on sustainable uses of P. euphratica forests and their response to drought, intending to improve P. euphratica ecosystems. International research, on the other hand, focuses on revealing mechanisms of environmental stresses, including genetic and physiological–morphological characteristics, to exploit the excellent characteristics of P. euphratica to serve agriculture and other fields. The development process of P. euphratica research in the past 30 years has generally evolved from an initial focus on its natural conditions towards the study of the relationship between environmental factors and P. euphratica physiological and morphological characteristics and, finally, the study of stress tolerance mechanisms and gene expression of P. euphratica. There is a trend towards ‘applications of P. euphratica tolerance genes’, which may represent a direction for future growth research.
Funder
Xinjiang Production and Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin
major science and technology project plan of Xinjiang Production and Construction Corps
Reference111 articles.
1. Selection of dominant Populus euphratica varieties and construction of genetic markers in low groundwater level area of Tarim River Basin;Yi;J. Plant Genet. Resour.,2006
2. Correlation analysis between geographical distribution characteristics of Populus euphratica and climate environment;Yang;Anhui Agric. Sci.,2012
3. Temporal and spatial variation characteristics of drought index in global Populus euphratica distribution area from 1960 to 2012;Zhang;Resour. Environ. Arid. Areas,2017
4. Double sampling for stratification in periodic inventories—Infinite population approach;Saborowski;For. Ecol. Manag.,2010
5. Population structure and statistical analysis of Populus euphratica in the upper and middle reaches of Tarim River;Han;Ecology,2007