Maximum water activity corresponding to different enzyme activity and sampling sites [Dataset]

RDA plot showing the correspondence of water activity giving the optimum enzyme activity and environmental parameters. Capital letters (in black) represent the sampled soils (G, Galicia, P, Aragón; S, Salamanca; C, Sevilla; T, Cádiz). Arrows represent the environmental variables (soil texture, sand and silt content) contributing significantly to explain the variability of water activity resulting in optimum enzyme activity. The distribution of enzyme activities are presented in red: Glu_20, glucosidase activity at 20ºC; Glu_60, glucosidase activity at 60ºC; Pho_20, phosphatase activity at 20ºC; Pho_60, phosphatase activity at 60ºC; Pro_20, protease activity at 20ºC; Pro_60, protease activity at 60ºC. Figure