Figure 5

Results of the PCA performed on the sample data. P: Phragmites australis P-K: Phragmites australis—Apocynum venetum P-S: Phragmites australis—Saussurea salsa T-P: Tamarix—Phragmites australis L-K-P: Lycium ruthenicum—Apocynum venetum—Phragmites australis T-P-K: Tamarix—Phragmites australis—Apocynum venetum T-N-P: Tamarix—Nitraria sibirica—Phragmites australis Sa-P-Le: Saliconia europaea—Phragmites australis—Leymus secalinus P-Le-Sa: Phragmites australis—Leymus secalinus—Saliconia europaea T-L-K-P: Tamarix -Lycium ruthenicum—Apocynum venetum—Phragmites australis Sa-P-Le-G: Saliconia europaea—Phragmites australis—Leymus secalinus—Glaux maritima P-S-Sa-A: Phragmites australis—Saussurea salsa—Saliconia europaea –Asparagus L. P-S-Le-A: Phragmites australis—Saussurea salsa—Leymus secalinus—Asparagus L.