rarefaction and extrapolation of sample coverage based on sample-based abundance data

#R code.txt is the R code for plotting figures and constructing Tables

#bciabun1010.txt is the species_by_plot matrix that BCI forest Plot is divided by a plot with size 10m*10m

#bciabun2020.txt is the species_by_plot matrix that BCI forest Plot is divided by a plot with size 20m*20m

#bciabun5050.txt is the species_by_plot matrix that BCI forest Plot is divided by a plot with size 50m*50m

#fus10.txt is the species_by_plot matrix that Fushan forest Plot is divided by a plot with size 10m*10m

#fus20.txt is the species_by_plot matrix that Fushan forest Plot is divided by a plot with size 20m*20m

#fus50.txt is the species_by_plot matrix that Fushan forest Plot is divided by a plot with size 50m*50m

#lhc10.txt is the species_by_plot matrix that Lianhuachi forest Plot is divided by a plot with size 10m*10m

#lhc20.txt is the species_by_plot matrix that Lianhuachi forest Plot is divided by a plot with size 20m*20m

#lhc50.txt is the species_by_plot matrix that Lianhuachi forest Plot is divided by a plot with size 50m*50m