Appendix B. Detailed description of the principal component analysis of biogeochemical variables that describe baseline conditions among three Californian salt marshes and a table showing the eigenvector scores of 12 biogeochemical variables in three main PCA axes in control plots at 7 months of fertilization. VivancoLucĂ­a C. IrvineIrina B. H. MartinyJennifer 2016 Detailed description of the principal component analysis of biogeochemical variables that describe baseline conditions among three Californian salt marshes and a table showing the eigenvector scores of 12 biogeochemical variables in three main PCA axes in control plots at 7 months of fertilization.