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C <br /> ' Table 2.2d.—Runoff curve numbers for and and semiarid rangelands' <br /> Curve numbers for <br /> Cover description hydrologic sud group.- <br /> Hydrologic <br /> Cover type condition° A° B C D <br /> ' Herbaceous—mixture of grass, weeds, and Poor 80 87 9.3 <br /> low-growing brush, with brush the Fair 71 81 89 <br /> 1 minor element. Good n2 74 85 <br /> Oak-aspen—mountain brush mixture of oak brush, Poor tiff 74 79 <br /> aspen, mountain mahogany, bitter brush, maple, Fair 48 57 83 <br /> ' and other brush. Good 30 41 48 <br /> Pinyon-juniper—pinyon,juniper, or both: Poor 75 87) 89 <br /> ' grass understory. Fair 58 33 8tl <br /> Good 41 ail 71 <br /> Sagebrush with grass understory. Poor V 80 85 <br /> ' Fair 51 63 70 <br /> Good 35 47 55 <br /> Desert shrub—major plants include saltbush, Poor 63 85 88 <br /> greasewtwd, creosotebush, blackbrush, bursage, Fair 55 Cb <br /> 81 86 f <br /> palo vertle, mesquite, and cactus. Cod 49 b'8 79 84 <br /> 'Average runoff condition,and 1, . U.S. Vor range in humul rekwns, use table"'1. <br /> t 15.u7 <SM umnwul cover(litter,grass,anti hrmh uve"tum). <br /> SU to 704 gmun(i tvver. <br /> :7,01A Ktound wVer. <br /> 'Gums numbers fur group A have been develulml unh• far desert shrub. <br /> !n bell So', ( 5evo^1I5 G!'oKp used Grov_p B fer eeNsN%kL+;SM <br /> C"rvt ##'s s(<owtn Ckloove based or, ATA <br /> ��� coOk l l�'11wS 'tof CONS�Y���SM. <br /> 1 low IMP <br /> 2-8 (210-V1-TR-55, Second Ed., June 1986) <br />