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<br />Co., <br />CJ1 <br />v) <br /><::n <br /> <br />X. ERRATA TO 1977 SALINITY STATUS REPORT <br /> <br />Appendix XII-l of the 1977 Salinity Status Report (2) discusses the <br />elimination from grazing of areas that are unsuitable for that purpose. <br />These areas usually are too steep or rocky, lack sufficient forage, or <br />are covered with dense trees. In the Soldier Creek allotment example, <br />60 percent of the juniper-pinyon vegetative type was listed as being <br />usable. The grazing capacity was eliminated from the other 40 percent, <br />leaving use on 6,907 of the 11,512 acres. In computing the results of <br />grazing management or removal of livestock as treatments for controlling <br />salinity, no benefits should have been credited to the unused acreage. <br />However, this reduction was not made, resulting in too high estimates <br />of benefits from the two grazing treatments. <br /> <br />Although the error made on the Soldier Creek allotment is significant <br />(11 percent), when it is combined with the other two sample allotments <br />and extrapolated to all highly saline lands in the Upper Basin, the <br />overall error is a nonsignificant 1 percent. Therefore, the data on <br />benefits in the 1977 Salinity Status Report will not be changed. When <br />computing salinity benefits, care should be taken to remember to deduct <br />effects on unusable areas. <br /> <br />The table on the top of page 1-11 of Appendix XII-l is incorrect as <br />presently shown. It should read as follows: <br /> <br />34 <br /> <br />;.;> ."<",:.... <br />