mllapse In West Auslnlh, unly one iii original nee eeyer remains, in sbneli Auilnlia m n Virloria mo, and in Elhlopli 41. All suller increased sleeani and gmnndwaier sailing, raised waler iables, and in. creased anesian pressures lnrrn deep sail leads, risking surlaee sail seepages lr is lherelerre a enlieal srralegy ni loibid hmher eleanng on any land (serum Auslralia has done sol, to mal inlereepier hanks, end In reregerale upland or inlale areas wilh irees. to sin up llie eyidenee en dryland salhllg‘ s Soll eollayse can neeur in day-Inmml sells, eaiis mg walerlogging, gullying. and erdp dearh lroin mmplflian and anaembie sml eendilions . ln deloresled areas wuli large and! oi waler inuh' ldrrned er permeable soils and shellered Mk, sally gmnndwalers ean nseby lludd inhliranen, as ll does in arereirngaled areas, - Extess snll waler lrerr. ilie inner elleel is inosr elleeilyely reindeer: by beeslyeisnsauporlallowl. « Thz- ieduelion in elnninalion 0| overland flaw by inrereeplion banks enables eollapsed sails lo maven and lharunlil rhis is done. lrees win not survlve Theee is eyery reason, lheieloie, iii rlmmmr llie Inml siliirlnrii beleie reesininending eilher lree pllmmg or inierneplrir banks, ilie larler are ippmpnik in seils wilh ebvmus eeinenied ‘3' hurirens and iibyiiius riinyvrasun wnierlngging, bin where bnih rlie "B' her-iron and any underlying a|ria|a ean be riiillilry Tree plannng is hlvely in be elleeliye in areas where deep ptmwabl: surlare soils or slrala are lunlld, where nn eeinenled suh»snrld«- layer ueriirs, and linen oll|y where gmundwilers have run rearhed in 2 in o! lhe snrlaee Linnl inrenieplien banks have been rnade in enllapsed sells, lreedealh will oeeur and new uses liye enly unbl lhey are a year or lwu inln grewrh, alier lhar, lhey walerlbg and die The beer way (0 diseoyer whal local problems are oeenring is by digging backhoe eils and observing how rhey hilewhelner waler wells up lrnin deep Rep ages, In lneldes dewn resin shallow seepage above lhe "a" horizon Thls decides eorreelrye srralegies llrees alune. or lmmpwr banle plus mesl Swales lo inrilrrale rain wnler are appmpnll: only ii rrees are niaiiled «lynx lien. la iediiee me ner iniilrrauon abdve deep elay layers. Swales are, however. valuable aids lo nee (mps and rbnrenrrale iresh wikx al liee name. 7 ally. lhere is no donbl lhai any naliiin whleh pennils overegrazms or «doping wineh rednees nee eoyer in areas where pmripltilmn is exccvdzd by evipnriunn wlll, in a iew ihorl decades. lnse ils drylands lo deems and sail ll is long pasl rinie |n legislale and |<| dlven publie names in bolh slvp and ii posshle Mm rhese elleers worldewide. Caullausflwhcs Gwen ihe nuinele .nieraeliens Pusenile bellheen salt), i-liieerannn, soils, slopes. drainage, and lnnd use. end 408 giyen lhal prebleins mly nol Show up lor loo years or inoie. designers inusl always be willing iii iollow a sequenee oi ranlions appreaehes id ensure lhe pernianenl use bl drylands. l belieye lliese lo be as lullows- - To u-y a gn-al variely nl sinall sysleins iii earths wdrlrs and land use pvxm‘cs an only une slope or final - To rhen niuniror sneh iaernrs as inlillrarien, evaporahon. salinily ehanges, and my neallh eyer a few years a To eaunerurly eiirend syslerns lliar do nol Show any sail inciease in soils nverrheslreri lenn. . Above all. m sure no runesu where bee reels ea- nm| rernoye lhe water, or lb nee uvwn shade lhe sror- age, unless i: is snbsurlaee slorage in sand basins or sand danis. . where gmundwzrer rubles are shallow, eonsen. lrare en lessening inlillrallon by lloedwaler DWER- sloN lo slieania and floodways. r where soils are lrelenining, mnwnlul: on i rrwlimx loeal inlilrralion by swales lo inerease iree cover - Where gardens are [0 be made. use ridge lrielde irnganon in dry penbds, and il possible anew needw walers in linsh oui funnws ulaeeurnulaied sale in um i To layeur reel unles and snrlaeeswales ralher rhan wells 0! bores, which lower loral iqhhller reseuiees and rrnale lneal exeesses - ln pammlir, use bade—hoe or deep pit samples in eslablish rhe mndiriens is: drainage loeally, and llien prereed lo siralegies based on me loeal eondiiiens ldiyersion, inlereepliun, swal! inlillrarien, and snap type) Makr eyery aileinpi lo assess pnreniial yields belore domg any ril rhese lhings Ally yield we ean manage is pielerable le brie we 0:111. ir may be easier lor us to rnanage and ineiease namral yields le 3 lhe saiga imdapt in sleppe, lhe kangaroo in Austfilla. m rhe 144] species cl large animals in Alrleal. wherher animal ur planl, ihan ll is ie unpree an eirebe (mp or animal speries all a hagile eni-nuninenl - observe every ease where yields are nalurally high, these rnndlribns inay indirare a sale way in increase yields al leasl nsk leg. pakhu oi renal where dunes eonrerge iii. a slnpmg paveinenl, or large erees rnnging a dry nver sand-bedl sneh eondilieins are libelyle have ‘ smodmelsis ellirne, l-laying examined lprelerably by digging piis or insuring piezorneleis in key areas) lusl whar local sailing elleels are in preress, lanneis and disigneis can elmse Imma serelslealegies loreveii useall nl lhern il pmdurl incl-use ruabiies lhe expensel, Theseaie l Swales al high levels lo eslablisli lrees. w ' reduce net inlilliaiion. 2 lnlereepror dmms landing In nalural wawmiys al inidslnpe and on lowlands 3 Where iniake areas ean be ideniilied, inrensire planring ul iiees Mhldl use plenniul sriil irarer leg