memex/0_inbox/books/PDM/Bill Mollison - Permaculture A Designer's Manual text/372.txt

ware. inside me earlli illan we an in slnall danls, and
wiili a giualer beneficial cllcd all Im Nu dains al
modesrsine neara villas! gwrsl‘l dean waler Soul“: lar
nausea and a weleorne swunl-ilinp area irlleae illrlmons
need lope dearly sepamed, even ll rile lausrlsalsu (or
garden use:

lslum RUN-OFF mp5 tuMAMM7
ln gently—$10171!!! uplands wllrl welladeyelaped valley
runnall in lalny periods, and wllere loess soils enable
deep Inhlhlrmn. lsrael llas drvcloped wllar are
essenlrally dry darns al lielin ux N as lla, llle ooziain
yided nail, and me dry walls Imlc eansalidaled. Tlle
bald“ lllernselyee ale lez in nlyi and 2.5 in wide. ll ran
be penerleial id supporl ille inside base ul ille hank wiln
slarle Sl|b ai lllo ends M ine walls will spill waier ai a
depili 0140—60 earl, wneri ii (an llaw io me next
linianim. lies aie esvabllslled in liliaoinlpoundnlenis
nle run—oil area is lsoln 30-500 llnles rllal al rliis
nirllmlmt, rlle inure gerllly waierean be led in ma luw
slope diversiiin draiils or as sneer nowl, me less sxlting
and sill erosion oeeurs, bu| lipea will grow well 1! ills
so“ is ke-pu open by allay, dr eninpaedan liy livesuiele
u pievenled, Catch-(mp is peesllile in we! yeais lriunl
wilsdn,c lrl laudswpr Mislulm, Au; I980)

AQUIFER INTAKE AREAS

Only in lllll eaunlry, and lllerl lor ille inosi parl prl
ridges, plaleaus, and derrilua slopes do we rind open
supsurlaepellarlnpls lor ilie deep inrlllralian al waier, as
loose gravel ledges, snarlered ur salulile ranks, (appmgi
ol loose dunesarlds, rlr llemly iailsiod ridges and high
slapes ai porrius nlaleriala surll as linlesldrle,

in»! 1’

lmrammg suds, rir nsaund rad lsipnle 1mm,

me ill.» inialles, waler will emu llle soil and Mk
srrala, and lraliel Irlr rnaiiy inein-s or kllomlters lo
springi, rllvers, ar arieslan hasms. IE waier irnin lliase
laiier Mullws is la pp ll l lsed, mm and rilalllierlanre ol
lne prlinary lnialee is essenilal Saiellile leleineiry
meals llle pairerns ol [law in underground slieanls,
Melsi lolldw rile dip olsedlrnerlis. and ille general slope
oi ine land. hul aliuliers ean \unlxke siieainal llow
uphlll, and illey can aim pruduee a head 0! waiar
(usually llorrl d 5 m 7 rni in pore pipes or plemnlelels
(pressure “mam,

oil llalier land, large areas al sand aei as peielied
aquileis abow: lbs perirloaale dtscfl pallernerlr m (lay
soils Waler llpin lime seeps our ul ilie dune base, and
(in b: used lueally loi llees. Waier is lound lipin Ame
2 in deep in dune sands as inaisl sands.

Tlle "Hake aieaa can mine inelreeliye by deposn or
valcank asll ur laud, by line dus| ironl deseri dusi
slurlns. or by sand and dusi bIown upliill lroiil
sulliyared and overgnud mas. Exwp| iar lulearllslru
suen ellaeis can be minimised by slablliaing lne
landscape, by windbreaks, and by pirueelud ieaerves In
all eases, delareslarion al slopes and ridges iaduees rile
rlllerweness ol iniaki-l

We ean assisl aliuller lriiake by

. Planting runs an ridges and slupes,

- Bmldm‘ deep inlereeplur drains ml eonlour rlear
ridge laps and on plalealis,

. Ripplng m<k pavement (If eapsiorle areas lu allow
waier pauerranon,

- Leading surlaw drains in wells elrl ln sliailered
roelr, and

. Crea|ing banks al loose suriare blunder, or
opening pilsand swalas in Ennis.

Trees, in ilie lanp ierin, keep such syslerrls aperl lo
inlilrrarlun and reduee or ellnllnaie dual lioin luess and
sand dzposils llpin surrounding areas

By a coulalnallon all all llle lpregalnp laeiurs,
lnielligeni pieparaiilills can be lnad. la uillig illls liesn

 

   

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