3 CL PRELIMINARY SOIL MAP OF THE KINANGOP AREA Appendix 2 to Report No.. 34*. "Soils of the.kinangop Area" O" LEGEND LPbP AD M MOUNTAINS AND MAJOR.SCARPS (slopes over 30%) MV Soil.s developed on undifferentiated volcanic rocks I MVcl I complex of well drained, shallow, to moderate I y deep, stony and very rocky soils of varying colour and texture (LITHOSOLS and mollic ANDOSOLS) I y\/c2 J complex of well drained, shallow, stony and very rocky soils of varying colour and texture (LITHOSOLS) H HILLS AND MINOR SCARPS (slopes from s-20%) HI Soils developed on trachytes [_ijiez] we " drained ' shallow, dark reddish brown, rocky clay (LITHOSOLS) HV Soils developed on undifferentiated volcanic rocks HVP J well drained, shallow to moderately deep, dark brown to black, rocky,clay loam to clay (LITHOSOLS and mollic ANDOSOLS) I \\JC I complex, of well drained to imperfectly drained, shallow to deep, rocky to extremely rocky, dark greyish brown to dark brown, firm, clay loam to clay F FOOTSLOPES (slopes from 5-16%) Fl Soils developed on colluvium derived from trachytes [ Fib moderately well drained, very deep, dark reddish brown, firm clay FP Soils developed on colluvium derived from pyroclastic rocks (tuffs) I FP1 well drained to moderately well drained, deep to very deep, very dark greyish brown to dark brown, firm clay [ FP2P I moderately well drained, shallow to moderately deep, dark brown, firm clay FV Soils developed on colluvium derived from undifferentiated volcanic rocks (vertic LUVISOLS, sodic phase) I FVr I well drained,deep to very deep, reddish brown, friable, clay to gravelly clay (ando*-ferric ACRISOLS) L DISSECTED PLATEAUS (S iopes from 2-8%), LP Soils developed on pyroclastic rocks (tuffs) [_J_P_biPj well drained, shallow, dark reddish brown, rocky, sandy clay to clay (LITHOSOLS) I well drained to moderately well drained, shallow, dark reddish. brown to very dark greyish brown, firm clay (eutric CAMBISOLS, lithic LP2P 1 vve " drained to moderately well drained, shallow to moderately deep, dark brown to dark greyish brown, phase) 1 firm clay; in places calcareous, stony and rocky (ca cjc LUVISOLS,partly lithic phase) I LPC1 j complex of: - well drained, deep to very deep, dark brown to very dark greyish brown, very friable to friable, clay loam (humic - imperfectly drained, deep, very dark greyish brown to black,firm,1 calcareous, cracking clay (calcarqîpellic I ^-P^2 j complex of: - moderately well drained, deep,'dark brown to dark greyish brown, firm, calcareous, cracking clay ANDOSOLS) VERTISOLS) TURASHA f I SETTLEMENT L -moderately well drained to imperfectly drained, deep, very dark cracking clay NON-DISSECTED PLATEAUS(siopes from o-5%) greyish brown to black, firm, calcareous, LP Soils developed on pyroclastic rocks (tuffs) LPb moderately well drained, deep, dark reddish brown' to strong brown, mottled, firm clay 1^ L P a 1 imperfectly drained t o poorly drained, deep, very dark greyish brown, mottled, friable to very firm, clay, abruptly underlying 45-55cm of silly clay loam to clay loam, with many iron-manganese concretions at transition (dysfric PLANOSOLS) I LPa2 J poorly drained, deep, very dark greyish brown to very dark grey, mottjed, very firm clay, abruptly underlying 30-4Scm of silty clay loam to clay loam, with common iron-manganese concretions at transition (dystric PLANOSOLS) llpa3 poorly drained, deep, very dark greyish brown to very dark grey, mottled, very firm clay, abruptly underlying 25-45cm of silty loam to clay loam, with many iron-manganese concretions at transition (solodic PLANOSOLS) U UPLANDS(slopes from 2-16%) UV Soils developed on undifferentiated volcanic rocks well drained, very deep, dark reddish brown to very dark greyish brown, friable clay w e H drained, moderately deep to deep, black, friable clay loam, with firm deeper subsoil (mollic A RIVER ALLUVIAL PLAINS AND TERRACES (slopes from 0-2%) ANDOSOLS) ÂÂ Soils developed on alluvium from undifferentiated volcanic rocks [_ AAJ I moderately wel I drained, very deep, dark brown to very dark greyish brown, stratified, firm, calcareous clay (calcaric FLUVISOLS) J A A 2 imperfectly drained to poorly drained, deep, very dark grey to dark greyish brown, mottled, stratified, firm, gravelly sandy clay to clay (dystric FLUVISOLS) B BOTTOMLANDS(slopes from 0-2%) BP Soils developed on alluvium/colluvium from pyroclastic rocks (tuffs) BP1 J imperfectly drained, deep, dark yellowish brown to dark greyish brown, mottled, firm, calcareous clay. (calcic CAMBISOLS) I B P 2 I imperfectly drained to poorly drained, deep, very dark grey to greyish brown, mottled, firm clay V VAL LEYS (slopes from 5-30) %) (eutric GLEYSOLS) VP Soils developed on pyroclastic rocks I VPC I complex of well drained, shallow to moderately deep, dark brown to very dark brown, friable, clay loam to clay The names between parentheses reflect the scientific soil classification according to the FAO/UNESCO legend for their "Soil Map ol the World" programme; prefixes marked with * are tentative terms, awaiting inter - national agreement on nomenclature for in intergrading soil units, KEY LPti P AD.. T5.J.. _ soil mapping symbol.depth class symbol slope class symbol > soil b 0 u n d a r y slope class boundary _ boundary of the surveyed area road motorable track river/drainage way I». dam s building (trading centre) M dairy (milk collecting centre) ;:: cattle dip minor scarp major scarp 100 ha slope 'X i 0-2 j 2-5 : 5-8 8-16 ; 16-30 i KEY TO SLOPE Cl ASS(; C islope class! sy rrsbo I '^ 'Q' r :r ~ name of macrorelief flat to very yently. undulaling i gently undulating undulating ; rolling i hilly > nor indicated for mountains,major scarps, hills and minor scarps KEY TO DEPTH CLASSES thickness [_ s V md0! + j I,. ~ love'"" pètro--^ name i _ s _ 011 _'_ n c m _ o v e r..: ck J/ plinthite _] j 0. 50 f P ~1 i shallow 50-80 ; [ ' p' 1 ; 80-120! [ ~~J m o r e t h a n ( i ~~i 120 : L - I moderately deep deep very deep il a complex of depth classes occurs in one unit, only the symbol of the shallowest depth class is indicated TEXTURAL CLASSES - * '*>,,.,., ETHIOPIA G I I H10R0 Shi TLbMtNT m / KENYA \",/ V, NAIROBI "T>M0MBASA /.location of the surveyed area percent sand SCALE 1:100,000 I RfcS 1000 ioo 0 Kija Base map compiled and simplified from Survey of Kenya topographical sheets 1:50,000 Prepared and drawn by Kenya Soil Survey in Nov. 1977 Drawing No. 77059