Chapter 11

 

DRYLAND STRATEGIES

me dunes. |Ike nnrrnoruo chords. rnuluply Ind
repenl me noles or me “ism, slim sands...
ynu now hear wnnl sound. lllee me sonurous
musle claimant drumo— roll aner roll...

m! ,1969, on are Tolsolmrnune ol llre dnnts)

 

111
INTRODUCTION

Tne dtvehymtm of rooservnme strilesln iur rne
preserve-ion oi dryland speoes, and ior lne respons—
lule human use snol minigemem ol .rld lands ls
pmbably m. wnfld‘s musr pnssmg pmblm in landv
scape nlsrogernenl. Only spondlr warld snenrion Ii
given in lsrnine or dmghi m .nd areas. wuh suelr
“iuddm' emergencies consuming gm! quanones ol
resources and linsnee. nnrrln ui which is wssled in
mbnunagtmcnt

problems a! sriorry, sslled soils, Ind kingvkrm
drought an .lrmys be :11pr wlrele we venlure inlo
deserr borders with parlorslirrn 2nd cropping, lor
rodeo rouse roiursl backgwund Hudlulionsnl rsinisll
due lo e-rur sud moon orblls, and solsr rudisnon
“runes, we as expaloilers sod deioreslnllon, soil
erosion, and me soruequenl salon; ol wares and 5m):
All om am an «sending my dryhnd am: one
bang ere-led, sud anleeeoenl plan! and nnirnel spudu
are thereby lmuelrl lo exam-ion

A great many Adda": speaes .re nor in mueln
dry—sduoled s. dmngnflidlngv Hams dry on, ease
smlh, or my only us seeds snd lubers in draught.
Many lrees are dry-deciduous, evading me worsl
eueors ol drouglri .n s leslless slule, our lruly
drougnr-sdnpleo plum speeies also erlsl, and use woo
insulsnon, redused irsnsprrulron, sud large wsler
srorsge organs lo wuhsland drunghls Arum-ls

308

sesriysle, mlgnhe lo humid uses, or take Muse near
oases and wener amass Msny sniulsls gu sumcioru
wsler by eating sueeulenl yegelorwn, by blowing sl
nigh! n1 lskr Idunnge oi rondenrsilon, or by
predatinn on lnseels sud urlrer speries or .nnnsls.
Almosl all srnull animals blmvw by any ro escape soil
lernperslure Iluenorions. oner. iol or 2 in deep 5orne
lerrnue eolonles develop deep galleries no la m) lo
mine wsrer, Ind also arrange I" mndlhonlng by
sdsoled peoneonle surisee nesr snuerures

lnnusmg desenrnesnon ol :smhunl lunds has
loeused world snennon on ssll and dmugm—lnknm
plsnr species ol pmmlial use. Gary Nuulmrr lin Annals
of am» ivlll, ml his lolulled oso edible phm speoes
for me Sononn and Gnol sum. desens ol llne Noni.
Amencin lnl r (2M ul llle lolsl speelosl nie
semisolid or lrnnsinunsl areas are psrlleulsrly
spednakh. mus desenirresoon rs (3km; s rapid roll
on polennul uselul phm dryslsiry of rne 936 woody
Plsnis In (M West Auslmhan when-belt, ms are ll
risk Lust reserves are urgently needed, rile ruesenl
reserves in srid lands sre 'enrirely lnedequsle lo
eunserve even . ususl pmpanion oi rne genetic
ysriuriun. - (Nulslonn, mid.)

Colo high mounlsin dam like me Gabi love some
so flowering Plum, and no speeus ol lnrds (Ga: ml
1936), while large .ress ol llie slid Senor. line H
plsnl species ln lolol, and reeenl deserls sum us me
Tharwnve lyls species Moslol me world and speo'es
llern rne thhzn,5mmran. and Auslnllan deserts

And lsnds In: Ire” wnere direel eysporsllon
:xcecds mnlsll, and where snnusl prerrpilulion
lverflgu lull below an on, and as low as l cm (some-
lunes only u dew) Aflhaugh sne gresler par! ol mere
areas an mil desen, [hm sre suosrunrisl .nunrene
holwld desens, and my eold deserr oreus nesr lire
mill and mum pulax regions Typlqlly, sn erlenswe
hm deserl an: eonsisls or s Savannah edge lowsrds
inure nunnd munsoon mus, u Medilemnesn eliulsle