Desire for Greener Land
Desire for Greener Land
Desire for Greener Land
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Woven W wood fences s<br />
Turkey<br />
– Odunddan<br />
Örme Çitleer<br />
(Turkish)<br />
Wooden W fencess<br />
are an effective<br />
and relati ively cheap wway<br />
of conserv ving soil from<br />
water w erosion by decreasinng<br />
overland flow.<br />
They alsso<br />
increase crop c yield by<br />
encouraging<br />
beetter<br />
infiltratioon.<br />
Dry D croplands inn<br />
semi-arid reggions<br />
are gener rally subjected to intense soil erosion in<br />
hi illslopes due too<br />
sudden heavyy<br />
rainfalls. In th hese areas, conserving<br />
soil and a water by<br />
ch heap technologgies<br />
that could be installed by y the farmers wwith<br />
available re esources and<br />
kn nowledge becoomes<br />
important.<br />
Woven W wood fennces<br />
representt<br />
a technology applied and deemonstrated<br />
su uccessful in<br />
se emi-arid mounttainous<br />
dry crooplands<br />
in Eskişehir,<br />
central AAnatolia.<br />
They consist of<br />
wooden w posts 150<br />
cm height inserted<br />
into the<br />
ground and bbranches<br />
wove en between<br />
th hese posts. Erooded<br />
soil from upslope becom mes trapped onn<br />
the upslope side s of the<br />
fe ence and overlaand<br />
flow is deccreased.<br />
The distance<br />
betweeen<br />
the fences is<br />
determined<br />
with w respect to ssoil<br />
texture andd<br />
field gradient.<br />
It is 30 m in hhillslopes<br />
of 10% % gradient<br />
co overed by sanddy<br />
loams in thee<br />
Eskişehir region.<br />
Above left: A series of wov ven wooden fennces<br />
set up on hillsslopes<br />
of the Eskişehir E area<br />
(Photo: Farukk<br />
Ocakoğlu)<br />
Above right: : Close-up view w of a fence<br />
prepared <strong>for</strong> a dry-farmed barley b crop (Phhoto:<br />
Faruk Ocakoğ oğlu)<br />
The<br />
basic costs are <strong>for</strong> the maaterials,<br />
its transportation<br />
andd<br />
the labour inv volved in<br />
in nstallation. Thee<br />
posts and braanches<br />
are derived<br />
either fromm<br />
trees on the farmers’ f fields Location: Eğ<br />
or r from nearby sstate-owned<br />
foorests.<br />
For 2009 9, the cost of innstallation<br />
was s about 1350 Region: Cen<br />
US$/ha. U The maaintenance<br />
cossts<br />
of this medium-term<br />
(20 yeears)<br />
technolog gy are only Technology<br />
th he labour needed<br />
to repair thee<br />
damaged fen nces/terraces aafter<br />
extreme ra ainfalls. Conservatio<br />
Technological<br />
change<br />
includess<br />
contour (rather<br />
than downslope)<br />
tillage be etween the Stage of inte<br />
fe ences, which caauses<br />
a minor increase (10% %) in the expensses<br />
of tillage operations.<br />
degradation<br />
Origin: expe<br />
The<br />
technology can be appliedd<br />
both by small-<br />
and large-sccale<br />
farmers in quite different <strong>Land</strong> use: cr<br />
so oil and slope gradient<br />
conditions.<br />
Results in ndicate that croop<br />
yield double es (1300 kg/ha Climate: sem<br />
of f barley) and sooil<br />
loss appareently<br />
diminishes s using this tecchnology.<br />
WOCAT data<br />
cdewocat.uni<br />
DESIRE site<br />
his.eu/en/esk<br />
Related appr<br />
Compiled by<br />
Osmangazi U<br />
and Architect<br />
Date: 10 th ğriöz village, Es skişehir<br />
ntral Anatolia<br />
area: 1.15 ha<br />
on measure: st tructural<br />
ervention: prevention<br />
of land<br />
riments - recen nt (
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