Current status and prospects of remote sensing inversion of vegetation leaf area index
In order to objectively understand the research status,hotspots and development trends in the field of LAI,this paper sorts out and analyzes 2 937 core papers related to LAI in the CNKI database through the bibliometric method.The results show that:from 1992 to 2023,the annual publication volume of research literature in this field generally shows an inverted"U"distribution,and the volume of publications reach its peak in 2014.Yang Guijun,Huang Wenjiang,Cao Weixing,etc.are the core authors in this field;China Agricultural University,University of Chinese Academy of Sciences,and Northwest A&F University are institutions that have made outstanding contributions in this field;Transac-tions of the Chinese Society of Agricultural Engineering,Acta Ecologica Sinica,and Transactions of the Chinese Society for Agricultural Machinery have published more articles in this field.During this period,estimating the yield of crops such as rice,wheat,and corn through LAI is a research hotspot;meanwhile,some scholars have optimized parameters based on remote sensing technologies such as hyper-spectral and drones to improve the accuracy of LAI retrieval,and applied LAI to the research of vegeta-tion canopy structure,ecosystem carbon fixation and oxygen release.In the future,research in the field of LAI may focus on UAV remote sensing,space-time scale,PROSAIL model,machine learning,etc.,and focus on the protection of the ecological environment in the Yellow River Basin and the research on plant diversity and functionality.
NETL
NSTL
万方数据
维普
