Laserfiche WebLink
L <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br />1 <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br />1 <br />1 <br />1 <br />EXHIBIT J (Cont'd) <br />A. Stipa-Agropyron Bouteloua Stand Type: <br />This is by far the largest and most diverse of the four stand types. It <br />occupies a large precentage of the land xhere the Valley Plain Grassland is found. <br />It intergrades very strongly xith the Hilltop Grassland as the txo produce a <br />broad ecotone where it is often difficult to distinguish one type from the other. <br />Generally this stand type occurs on heavy soils that exhibit a small amount <br />of gravel on the surface. Topographically, it is found on lox to mid elevation <br />areas in the bottomlands and on hill slopes. It seems to be more readily restricted <br />to a particular soil type than to a particular topographic location. <br />B. Stina-Allvsum-pzropyron Stand Type: <br />This stand type generally occurs doxnslope from the previous stand type. <br />As the name implies the difference betxeen the txo types is rather slight and <br />visually difficult to determine. There is usually a distinct lack of Bouteloua <br />gra.cilis and the weedy species Allvsum allvsoides is very common. <br />This stand type occurs mostly on soils somextat heavier in texture than that <br />found xith the previous stand type. The primary difference is the lack of any <br />gravel on the surface of this soil. <br />Topographically, this stand type is found on the loxest areas of the affected <br />land. Hoxever, some small areas of this stand type can be found on slopes and even <br />on upland areas where the soils are very heavy and gravels unavailable for mixing. <br />On the xhole, it is a highly ephemeral stand type and can be found most anywhere <br />and sometimes even surrounded by a totally different community. <br />C. Atriplex Shrubland Stand Type: <br />On the affected land there are about a half dozen small, highly localized <br />and quite unexpected stands of Atrinlex canescens (Four-zinged Saltbrush). The <br />occurrence of this species east of the Continental Divide is not common, especially <br />when compared to the very wide and highly dominant occurrence of this species in <br />the Great Basin and on the Colorado Plateau. Most of these stands cover only a <br />few hundred to a couple thousand square feet each and often are obscured by the <br />tall grasses surrounding the stands. The cause of their occurrence is quite <br />apparent. The soil is very different. <br />Superficially, the areas look as if they were severely disturbed a decade or two <br />ago, but this appearance seems to be caused more by the striking difference than an <br />actual disturbance. It is interesting that most of the stands fall more or less <br />along a line that would correspond to a geological outcrop. Although no outcrop <br />is readily apparent, the influence of a formation could be felt on the surface <br />41 <br />