ul mums smnll and expandmg the system a! me
periphery Dem plammg ul nucleus mas plus muleh
[5 me hey strakgy

10.4
EARTH—SHAPING IN THE TROPICS

On level ground or sunk slupes lz—e-l u. the ueley
uupus, a seues of large column banks or swalcs hm
an ex<ellenl sol] premauou Elled Cuupled wuh lhc
gradual develnpmcnl a: a lama, ”w meme“ 0!
wel—mm mm. and mukhrpmvlfllng hedgcmw Ihl~
flunk; a slable slluallun Blanca! me mam hcdgvs,
muleh hedgerow ml holders can be demlnpcd m (mp,
or file terrares (an be [loaded seasnmlly qu lmgalcd
(mpsll'igun 10.!)

On Vgry ml sue.- lless mu. m, a sane: 0! well
mounds or ridgzs can upeme to drain "ups m very
m mm. or lo lmpmmd wamr [or absorphml m arm
mas. P“: can also be used unly when rallllnll is las
man 7:: ml lao males», or Wu... wl‘ dralmge ls good
nlus, cassava. yam, and cucuxbib are meumled m

Areas whm dralnag: .s a problem and ralnhll mlense,
and plum u. dry areas ur savannalldrv yeasmls ms
.elem mukh and mulsmm, a: My do In dzsen mas.

Almost every slope balms lmm mnhshapmg Var
sml enusenuuou Hams—made slope lcnam need lo be
narrower (m 3 54» 5 m~l245 leen mm mathlnk
made syslems.

Garden Kerr-am on my sleep humld slopes musl be
kept narmw, and m sels m (H? uuwuslupe, mherwlst
mslablhty may mull Holden can be kepl vegelaled
w u "115W ummn

Classical wc| me and lam lenm has wa|er
eemmumsly led mm the [up unite u: we sane-s, and
nth has a an.“ and sump m mgulall: water level Flsh

 

MavNDs mes

     

rlaullillm

MUUNDS moaawts

Mounds unmix: was nlyum mes nl cassava um swl um
pm lol we irmwlunll and mum msses leums me such
mm unhwm

 

 

 

FIEURE lu

allow couloun sums EVOLVING m mums
swmwxuu mcmpmlh mums up mm: mews m mm mm-
cnnlnm (limes. mu m umnem stamllnli