98 lines
3.2 KiB
Plaintext
98 lines
3.2 KiB
Plaintext
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Chapter 6
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TREES AND THEIR
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ENERGY TRANSACTIONS
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0n Lhe dry lsland orl-llerro m the Camry Islands.
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mere ls a legend orlne raln Inc: a gum 1‘“ use
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IOmLea/‘oewnsl, me leaves orwnlon Wensed
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me rnounraln mlsls and caused mler lo dno lnlo
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noo lnrge clsrerna wluon were placed benearn The
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use was deslroyed ln a s1onn m leu AD. oul
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lne sue ls known. and use rernnanls onne elsrern
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preserved mus one lreel dlsulled sumclenl
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waler {mm the sea mlsu lo meal one needs olsll
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me lunaollanrs:
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(Davld arsmwelll
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Fur rne. lrses hay: always been me raosr pone
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uaung reacbers | revere um“ wnen may llve lo
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lnoes and (mules. ln loresls and groves... They
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struggle wuh all me lorces ol lbslr llyes (or one
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lnlng only lo rulnll memselves arcordlng lo uselr
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own laws. [0 bulld uo lnelr own lorms. lo
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represem rlrernselyes Nollrlng ls boner. nornlng la
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more exemplary man s beaulllul slrong nee.
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(Herman Hesse, 'l'ms", anoml stalm'ts
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lmrnul, Spring mm
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l am anonlsned la lhld wnole books on [he tuner
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uonmg 01 uees wnlcn mane no menllon a! lnelr
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solendld meennnlcal and asyodynamlo oerrorm-
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ance.
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(ngd, Li]! M Moving Fluids, mall
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a poll“ wnlelr ls olren overlooked ls me elven of
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lrees In lnereaslng [he lolol oreolorlauon
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cansklembly beyond mar rammed by raln gauges.
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A large prooomon or me nrne wluclr collecls on
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me mugs or Lrees ln rrosls anorwards .saones me
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ground as waler. and. m cllmales sum as those or
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me arlusn lslea. Ih: lola| amounl 0: water
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deposnzd on me mgr from fags and drmlng
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clouds ls consmtnable and mos! or u reaches me
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suearns or underground slorage. or al leaal re-
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places losses from subsequenl ralnlsll.
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or more lmporlanu, bowel/2r. to nydrnullo
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engllwen ls Lhe easel or woodlands ln moduylng
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lne runolr Th: rush or woler [mm bore lullsldes
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ls exchanged lor lne slower dellvery rrom [he
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malled car-oer ol me woodland, losses by mama
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don may be muth dlmlnlsned and [he melllng ol
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snow usefully maroon. ln calellmenrs rroro wnlcn
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nood warers are largely losr, woodlands may
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lnorease lne avallabls runorl by exrendlng the
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oerloo or surface now. The roaxlmum noods ox
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nyers are reduced. and me lowesr summer llow
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Increased. Woodlands are usually mucb more
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ellecuve lnan rmrmr yegerallon. aucn as gorse and
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neallaer, ln prevenung ure soll lrom belng turned
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Irom lne land lnlo an open reseryolr.
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-ro prorerl a reseryolr rrorn sllung. lr may be
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unnecossary lo olanl large areas. lne sllr belng
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arreslcd by sul|ab|e olanllng or narrow belrs ol
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woodland, or oy lhe orolecuon nl nolural grown,
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along me margns of me slreams.
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Some engmeeu conslder lnal |n lne case or
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small reservous rne sneller mnnied by . bdl or
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use: along me marglns ll or wine ln reduclng lbe
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arnounl cf soour or me banks caused by wave
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aorlon Alforestluon over oonslderaole areas In
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large rxvlr oaslns would. |n many cases. reduce
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rne arnounl or sllung ln navlgable nvus and
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nlunrles.
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A maller whlon does not recelve sumclenl
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anenuon ln eonnocuon mm nydraullr englneor.
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lng ls me ellecl onudlclous planung or woodland
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oonservarlon over small areas A narrow bell of
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woodland along me fool or a slope wlll arresl me
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soll brouglu down by ralns rrqm use nnlslde. me
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encouragement oI dense vegerallon along rne
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baunm of a narrow vnllzy may check lbs me of
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llood drsoharge lo a uselul ensnl, The olaoung or
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137
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