Laserfiche WebLink
<br />~, . <br /> <br />. <br /> <br />. <br /> <br />by individuals residing in and familia:~ with the valleys incicate t~at <br /> <br /> <br />th0 reduction may be in the order of 10 percent. On this basis the <br /> <br /> <br />r~cuc'ion in the 737,200 acres reported in 1938, amounts to 73,720 acres, <br /> <br /> <br />and the present growth area to about 660,000 acres. This is 2 t~nuous <br /> <br />estimat0 and could be in error by severul tens of thousands of acres. <br /> <br />Po ;i:OY"e I'l'eGise figul~e could be obtair~ed by a vt:.getation survey c-f tel.:! <br /> <br />pl'csent p. (Nth area. f..s the ?hrea"to'9hyt~ ar~a .in trl~ S2;l LuL:: Valley <br /> <br />accounts for lotO percent of the area fer the Stete und has the largest <br /> <br />evapotranspiration discharge of the several stream basins, such a slJ.r':ey <br /> <br />s~~~s cesir~ble. <br /> <br />As sho'tln in table 2 tr.e most cxtorlsive phrea-rcpbyt:e arE:'.::t is the <br /> <br />greaseflood rabbitbrush association. 'J.'he second larges"': is the phreato- <br /> <br />phyt ic aud hydrophytic g!'2sses, such e.s sedges and tules, folloTtied. by <br /> <br />the wlllo~, cottonwood association. Saltcerlar o~e of the hishest wat~r <br /> <br />l.i.sin~; ph;;,~aa.tophyt~s is reported as grcwicg on only 34,400 acres. Ho:.,rer/e!') <br /> <br />it ls known to be spreading throu<;ho.ut the Color'ado. Platte and Al'kOl'ISdS <br /> <br />River basinss and i"ts areal extent may be expected to incre.ase ir. the: <br /> <br />future -- probably at the expense of other pbraatophytes. <br /> <br />There are no reports of Russian olive it'! Colo1:'ddo. However, GS thcr->e <br /> <br />are substantial areas of it in the adjacent States of Utah, Wyoming, Kansas <br /> <br />--- <br /> <br />'and NaH Nexico, there is every reason to believe it is growin<; in Colorado <br /> <br />also. <br /> <br />The ~vapotrc:.nspiratioT1 fop each basir: has bee;n E:st.ir.\at~cl ir.djvldl1ally. <br /> <br />L'his was dop.e by applYl.ng nO) €::'1apctrC'.nspir=tio!l rate tc ti1'= diffe't:en"; <br /> <br />1129 <br />