The three most important sets of environmental variables are: The relative permanence of water, or the character of the intermittence of water in the habitat The relative salinity and the hydrogen-ion concentration of the soil solution The habitat variables related to seasonal temperature and length of the growing period Some aspects of each of these three sets of variables are evident in every marsh or wet-land habitat.
(The three most important sets of environmental variables; are; The relative permanence of water, or the character of the intermittence of water in the habitat The relative salinity and the hydrogen-ion concentration of the soil solution The habitat variables) (The habitat variables; related; to seasonal temperature and length of the growing period) (Some aspects of each of these three sets of variables; are; evident; L:in every marsh or wet-land habitat)
The three most important sets of environmental variables The habitat variables Some aspects of each of these three sets of variables
are related are
The relative permanence of water, or the character of the intermittence of water in the habitat The relative salinity and the hydrogen-ion concentration of the soil solution The habitat variables
to seasonal temperature and length of the growing period
evident L:in every marsh or wet-land habitat