61 lines
1.2 KiB
Plaintext
61 lines
1.2 KiB
Plaintext
1 O. DRYLANDS
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_ ’ 91%. .v “15
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54. PORT LINCOLN. SA. AUSTRALIA.
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Sand dune on hard pavement absorbs water and grows larger trees;
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the range is in fair condition. Sessile trees prevent sand erosion or
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trap sand on dune crests and sides.
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56. NEAR
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FLINDERS, SA.
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AUSTRALIA.
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BARRY PILTZ gathers
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sheets of guano trom
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below tree roosts
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beside a dryland
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. dam—pigeons and
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parrots visit for water
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and enrich area with
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guano, below roost
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, trees.
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0‘
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55. POVERTY FLAT. CEDUNA, SA, AUSTRALIA.
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Raised beds, sunken paths, pertorated pipe irrigation, mulch. sulphur.
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and bentonlte, combine to produce a rich organic garden on an eroded
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sandy soil site (water 1,100 ppm salt). Aboriginal students taught by
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PETER BENNETT produce excellent crops in desperate soil conditions.
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57. NEAR OODNADATTA. SA, AUSTRALIA,
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Hard bank (on skyline) constricts flood water to create a scour hole in
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river sand beds. Such effects can be created.
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58. ALICE SPRINGS. CENTRAL AUSTRALIA,
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Gabions—rock—tilled wire basket structures—stabilise a tloodway near
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AIICE springs reducing flood flow. and silt burden in the stream.
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59. CHARIKOT. NEPAL
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Gabions stabilise this steep hillsme gully on the road to Charikot. A
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Swiss design.
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