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~ <br />- vey, 1975). This is explainable by the fact that SCS range site descriptions are <br /> based on descriptions of climax communities. The areas within the proposed mine <br /> plan area designated pinyon-juniper have suffered [he effects of fire and exten- <br /> sive domestic and wildlife grazing that may have prevented pinyon pine from <br /> estab lishing. <br />The occurrence of specific vegetative communities within a particular area or <br />region are the direct result of various abiotic factors such as climate, soils, <br />topography and time. A climatic description of the proposed mine plan area and <br />[he Craig region in general has already been detailed in Section 2.1 of the per- <br />mit application. Likewise, soils are described in Section 2.6. A comparison of <br />[he 4800 scale soils maps and vegetation maps will demonstrate the general rela- <br />tionship between soils and vegetation. A detailed description and table of dom- <br />inant species response to various abiotic influences is presented in Section <br />2.3.1.3 Tab 1e 2.3-8. <br />The fourth factor, time, cannot be addressed in this application since no quanti- <br />tative information is available as [o the time sequence for natural succession in <br />[his area. <br />f <br />2.3.1 Species Inventory, Dominance and Habi[a[ Descriptions <br />A list of plan[ species identified within the proposed mine plan area is provided <br />in Table 2.3-1. Dominance and habitat descriptions are based on 1979 and 1980 <br />cover data. <br />2.3.1.1 Species Inventory <br /> The species inventory was developed from plant collections made by Ecology Con- <br /> sul[ants Inc. (ECI) in 1972 as par[ of Che "Environmental Study, Phase C, Final <br />2-60 <br />