Pr E? wuss or {mums Swimming and Ital—(rte pullers m fluwnwuls In umul where mes uvlvhmu a Must con: la WI)! ls Ilsa uselul In wllecl wzter 1mm ruck mam swms smles are long, level emvnunns, whlch can vary penny m mm and uealnrenl {mm small rrdges In gardens reek—prles aernss slupn nr dellbevatelyr uraramd lrpllnws ln llallnnds and IOWVsklpe budscapzs (Figure 7.73} lee sml (andlllonmg .rr so)! hmwmng ysrems, ewsles are .nrended le elem waler m rne undtdvmg smk er sedlnrenrs Tnev are, sn-nply, ems -!Inw drv channek or hasms ln-ended m mlnlly uunreepl overland new. to held u [or a le» hours er days. and lo lel u .nlrllrnlc 15 cxouanm’zk RECHARGE mm «all; and nee rool s slerns Tvrr» nre lne essennal mmponems nl swale plammg syslerns, or we nsk sml waler‘ngglng .nd n srrusenuenl hm! xalnfd“ deneu enused by laek ol evapelranspmunn er the slered Mater nus lree ylanlmg nrusl aeenrnpany swalmg ln and «was Swelee shnuld Idtu In“ exceed .n wmm lne lnlnl erewn spread n! rne Inngmg uees planned (0 use me suned waler absorbed mu) m swale sedunenls Trees owl-{shade and cool lne senls cl swalw, lurmrr reduerng lne nsle uc mapomuon and drssnlred salr (annulus nnn, nr water less. Auhuush swales ean also be grand, rew grasscscan elfechvelv mmuve nu» absorbed waler w renunndrly alrsrrearns swales are llrerelnre m dely used “1 and m subr lrunud, mzn nurnrd nrens, nn brun larrly sleep slope and llallands, and .n nnln urban and rural areas They am apprnpnare |o mad and ellner sun, er eenlnenrnaled mum" lnanesl lwneee rne dusl or lar olls washed en have M advusc eneemn lree gmwlnl nre essennels n! swalc mnsn'umon an- sunple they are all bum en (amour or dead lcvrl survey lrnes, and are neuner .nlended nor permuled lerwnrernnw nrelr Pullman ls .usl m lrnld water Unlike dune, swale banks and lenses are never enrnpneled ur sealed (although srnall lanks ean be sunk .n swale eases (or wannng Iweflmk m ueesl Conversely, rne swale smls (all be gravelled, rrpped er loosened h: nsslsl wakr lnllhmllun m swale depllr and wrdlh (in be uarred u, mpe the speed M lnrrllranen leenlly, so um wlder and §hal|ower swales are enade m sands, narrower and deeper swales rn rlay-lumun sells Alkr an mmAl senes o! rams lha| wk .n a rneue or more 0! waler, lrees are seeded or planned on elrner bank or slde slepes 9! me swales ThIs enn uake lwo wel pernrds Thereal-er, u |akrs Abel.“ >5 yenrs [or lree behs k1 uvelshad! llne swnle base, and lo snarl humus aeeumulauen lmrn leal lrssue ll-lurnus wrll aaeurnulale. hawever, by wash-down and wlnd movement (mm hare m upnlll sressl Early .n lne lrle e: an unplanned swale, waler nbsoeplm can be slaw. In“ (he eificlrncy ol Ibsavphon rnerenses wnh age due (a nee mm and humus evleels. As uni happens, ll ls pesslble In adnnl wamr m swales 1mm ornerareas, leadlng u m w. DIVERSION DRMNS mums nus ‘exollc weler 1mm unused mad on lock surlnees er overland flow can nub]: me plsnnng d1 lush-value uees el lugner waler demand a! a new 5:1 of swnles lo be (unstrunzd Every anbhumld And and |uwn9