Temporal and spatial variation analysis of Eucalyptus plantation identification in Guangxi based on time series
Efficient and accurate long-term monitoring of eucalyptus plantation area and exploring its spatiotemporal dynamic play an important role in maintaining both ecosystem stability and long-term stability of eucalyptus.Utilizing the Google Earth Engine(GEE)cloud platform,landsat series data was used to identify eucalyptus plantations in Guangxi from 2000 to 2020 by time series analysis method,and the spatial and temporal distribution pattern were analyzed.The results show that the overall accuracy of the identification results in 2007,2010,2015 and 2020 is higher than 85%,indicating a good performance of time series analysis in iden-tifying short-rotation eucalyptus plantations.Eucalyptus plantations in Guangxi expands rapidly from 2000 to 2020.The area increases gradually from 2000 to 2015,and a gentle fluctuation trend exists after 2015.Eucalyptus plantation distributes widely in Guangxi,especially in the south of the Tropic of Cancer.From the perspective of terrain distribution,eucalyptus plantation distrib-utes widely in the slope area.This work provides scientific reference for formulating reasonable and sustainable management mea-sures of eucalyptus plantation in this region.