130 lines
5.3 KiB
Plaintext
130 lines
5.3 KiB
Plaintext
poolo hog. and nsl. appear lroen mud—peeked .eueals.
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or .nvade rrom me me pormaoenl pools Flsh msy
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breed and gmw in. low rnonllo. and seadslmsmlgale
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.nland and nes. lo lake advaneare 0! nos nooks ol
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pelleans, flimmgos, Mums, lems, guns, waders, and
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ducks ooeupy else walers, and lo. a lew mourns lue rs
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nolous, and breedm; unoonlnurd.
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Anklope, klngam, and ll.e deser. quad, plgeoni
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finches, and parrols noek lo walerllolos and spread
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men ranges over new «orage areas, and animal
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numbers bland rap.dly. The lemma-m eouapse ol nus
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eaploslor. ol lire is slower bue usually lneviulale Some
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new lree gellenurms may have eslalrlrslled, one ll.e
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warers lurn sally dry up, and lrle seaerers, d.es, or
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mums .o ml or mud and sand, seeds are blown and
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bur-sad, and dudeserr ovals 25in lludsdlsperse, as do
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me mlgralory inim-hy and me deserr fringe;
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ekpeoenoe a sudden .rruplmr. ol mlgaflng sperms. 1?»
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parry L. over.
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ll la pan ol our strategy lo capmu some of use
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eslinraled ml of waler lhel ehhu evaporales or rushes
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unused aeroes llle land a. .l.ese llmes, and lo salsly
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slore .l below gmnd lor a pmlongihan at are 5mm
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period. and a llhumldlfinlion ol IM deserl alr llsellyo
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xranspirallon lrom lrees and shrubs ln nimril
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eondllloro, as lulle as do». 01 lolal rarnlall .nolrrales lo
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reelorge desed aqurlers
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ll 3
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TEMPERATURE
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Th: arr lemperalnre (up lo on m h glul over deserls
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approalmales me darly palleer. glven rn Fleure m. I
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has-e no. glven llro b an. lemperalures, wlueli ean
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range lroo. s-zn-c, our show a generalued graph
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wlricl. holds oue lo. mos. eases, and ...doeales a dse ol
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abonr ln-c lo 73c over me day. wul. a peak a. ham
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lzss p.m
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Soil laarperalures lollow ems genial eurve, our peak
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aboul an haul earlier. he sod is also (uldrr ins! beloru
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dawn, a. aboul 5-6 am. and me sneer ol lemperaeure
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bus was we go deeper .n use sail. Thu: ls lime eflm
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ol darly ellanges a. 30 em llz .nches) deplll, and me
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peak suflm lempeeaeure .oduees aboul 2-c lorevery 5
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ondepllllorlslc moonlsoulalsollsalaaemdeep
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may have laldy eonrlanl darly lemperalnrss some s-c
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or so leghrr lllan OM Inwes| surraee leruperalure, and
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I5‘C or so lawn llran are highnl surf-c: ltmpelalun
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Amlhzr way lo look a. dds .s lllal soll evens our llre
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hulillg llaal alleels alr lo. a eonsrderable dlslance above
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me gullmd Bnfll an and soil lollow a slower eyele ol
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annual range depend-no on lalleudo and radlallon
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mud ... season, 11“."!de sous loaooulz n. deplll,
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wlll. mm 5-: annual lluerualrori al ears deplll, or
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aboul llle same Hucmanun lllul wo experrenee .n
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undqumund nouns and cellars
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Sous also an gain and hold mIKh lush?! levels ol
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near laan arr, and a. 5 em deplu, .n lavuuralale sun
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311
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slopes and .r. poorly eonduelm, soils, also... «not
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ear. be .esrlled al peakl wnlle ll... ellee. ls guad lor
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solar ool waler .olleerors, .l .s lethal to. yum; planls.
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Surlaee a.r lemperaenres lreduenlly reach 3m: lr.
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desens, and were are oolared .eeords olSZ‘C (IZ'S'FL
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Layers or super-healed alr iuil above ll.e soil may
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oeoome unsuble, and (um raprd eonveellorul erarrenrs.
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espeelally on inn-hang slopes Cumulllorrn elsuds
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ean arrse lrorn nus erree. as mermals or strong
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updraugus. or as (learmlr eurbulenee .n very l.ol dry
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pen/dds.
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In order m espcape lllo eklreme surlaoe soll near,
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desere annuals commonly burrow lo below so an in
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deplll, or .n some cases seek our lush relueas .r. low
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shnlbs or an sruorps or pools ln no. wesarer. nle nthu
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way rllal anurrals eseape soil and on near ummb ls lo
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seek shade, mun: noelurrul, and lo develop £115de
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eoollng seralegses and waler eeonomy. In lurgerspedes,
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shade may be me |ilnlmlg laelor m survival leg. It»!
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amounl ol cave shenm .n me deserr may larnil me
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numbers so: large deserr rnarsup.alsi,
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Consequenely, deaerls have a la. gamer proporo-oe. ol
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rlrelr launa as sublerranean and noerurnal speqes Sod
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lnarnrduy also mes sreeply, upeclally in dm sands
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clrer. an “(use 49. D! waler .n rlre lop one melee. we
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ean read. lmm'le waler ronlen. al 2<6 merits, and a.
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2m m, were may be oulre sarurared solls. For bulh
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planls and anrmals, n .s pmleraole lo draw hum lllese
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deeper, eooler, and more l.urr..d layers olsoll
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11.4
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SOILS
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We normally ekpee. lo find domrnanely alkaline solo .n
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.l.e walerways oldeserls, wllll areasolsurlaeesales and
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earbonales. l| rs ... mere alkallne aaeus mar we usually
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loeale our selllemenls, lo lake advantage ol wiler
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runasd. pH levels ol 3.5 and 90 are no. alypreal, and
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drying walerlsoles ean resell pH values or men. sous
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may have hlgh nulrionl polenoal ll pH is adjuned and
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u waler lor lmgallon .s avnlalsle. Addi: sandy sorls
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lorrn around areas o1 deeply weeluered grarules, and
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may domlr.ale lug: areas uf loose landseapoo
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my. and low pH areas lrave (as a eonsequenoel low
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available minml lraee elemenrs. and u. my. pll, une.
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.ron, eopper, and nunynue dofieienesas are eommon,
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.nd.ealed ln erops and troll lrees by suel. laerors (in
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films) as manual eolour loss and lea! morning, will.
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lip all .n severe eases (Hangman z.ne definmy
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eauses more severe leal yellowmg, and rs ollen
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asso aled wrlu manganese delrerenoy Copper
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deficizncy causes glam leaves. gum poems in euros
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mulls, and muldple budding or hulking .n noes or
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erlrus. Falnr sprays, elemenlal sulphur, and olodss or
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sulpoales olure deileienrelemenrs ranbe used.
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Specral problems may be eaused by nomwullns
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sands la tongus s IISponslblz), and my. sale levels ...
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warer or so.ls aenlorule or llumus wlfl amelrorale KM
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