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<br />003101 <br /> <br />. <br /> <br />. <br /> <br />- 3 - <br /> <br />Table l.--PHREATOPHYTES IN COLORADO (1959) - (Con't.) <br /> <br />Acres <br /> <br />San Juan River <br /> <br />Saltcedar <br />Saltgrass <br />Willows <br />Cottonwood <br /> <br />3,225 <br />2,077 <br />14,247 <br />13,347 <br /> <br />Green River Basin <br /> <br />Saltcedar <br />Saltgrass <br />willows <br />Cottonwood <br /> <br />6,605 <br />3,705 <br />12,371 <br />9,229 <br /> <br />Upper Kansas Basin <br /> <br />Saltgrass <br />Willows <br />Cottonwood <br /> <br />2,708 <br />218 <br />4,391 <br /> <br />Arkansas River <br /> <br />Sal tcedar <br />Saltgrass <br />Willows <br />Cottonwood <br /> <br />9,594 <br />18,119 <br />4,796 <br />20,784 <br /> <br />A solution of the phreatophyte problem in Colorado in- <br /> <br />volves many unkowns. Foremost is the lack of knowledge on how <br /> <br />much water is actually consumed and wasted by phreatophytes <br /> <br />growing under the soil, climatic, elevation, and other condi- <br /> <br />tions peculiar to Colorado. <br /> <br />Ecological studies by the U. S. Department of Agricul- <br /> <br />ture, Agricultural Research Service, in Wyoming at an altitude <br /> <br />.1ac,:lc <br />