The Devon Karst Research Society.
ACTIVITIES (Europe).

THE PROJECTS IN BOSNIA & HERZEGOVINA

This is Page 2. (of 4 Pages) of a special Web-published Version of sub-Project Documentation, last revised on 17 February 2009.
The Main un-edited Project-level Documentation is available in hardcopy form for Project workers and other Authorized Users.

Main BiH Project No. 3.  /  Главни БиХ Пројект бр. 3. [SDZB-DKRS-J I / BiH / H / SLN / UK / 140800PTPH.]
.
Project Title [GB] :.."A JOINT STRATEGY FOR THE PROTECTION OF THE ENDANGERED UNDERGROUND ENDEM Proteus anguinus
AND ITS NATURAL KARST HABITAT IN THE TREBIŠNJICA RIVER VALLEY"
Eastern Herzegovina, Bosnia & Herzegovina.
Project Title [BiH-Lat] :.."ZAJEDNIČKA STRATEGIJA ZA ZAŠTITU UGROŽENOG PODZEMNOG ENDEM ČOVJEČJA RIBICA (Proteus anguinus)
I NJEZINOG PRIRODNOG KRŠKOG STANIŠTA U DOLINI RIJEKA TREBIŠNJICA."
Istočna Hercegovina, Bosna i Hercegovina.
Project Title [BiH-Cyr] :.."ЗАЈЕДНИЧКА СТРАТЕГИЈА ЗА ЗАШТИТЕ УГРОЖЕНОГ ПОДЗЕМНОГ ЕНДЕМА ЧОВЈЕЧИЈА РИБИЦА (Proteus anguinus)
И ЊЕГОВОГ ПРИРОДНОГ КРШКОГ СТАНИШТА У ДОЛИНИ РИЈЕКА ТРЕБИШЊИЦА."
Источна Херцеговина, Босна и Херцеговина.
VRELO "OKO", (ZASAD), Habitat Restoration Programme.
ILLUSTRATED PROGRESS REPORTS.


Progress with Phased Action Plan - PART 1. (PHASE 1.) 
"The Permanent Removal of the encroaching and structurally-damaging bush and tree growth" :
THE DEVON KARST RESEARCH SOCIETY, Plymouth, U.K. and
SPELEOLOŠKO DRUŠTVO "ZELENA BRDA", Trebinje, BiH-RS  -  СПЕЛЕОЛОШКО ДРУШТВО "ЗЕЛЕНА БРДА", Требиње, БиХ-РС.
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.Sub-Project Title :...ВРЕЛО "ОКО", (Засад), Требињско Поље   -  VRELO "OKO", (Zasad), Trebinjsko Polje.
THE RESTORATION OF THE VRELO "OKO" (ZASAD) PROTEUS ANGUINUS HABITAT LOCATION.
Page 1.  Introductory Information, Background Notes and Proposals.
Page 2...Habitat Restoration Programme Illustrated Progress Reports. Progress with Phased Action Plan - Part 1. (Phase 1.)
"The Permanent Removal of the encroaching and structurally-damaging bush and tree growth".
Page 3.  Habitat Restoration Programme Illustrated Progress Reports. Progress with Phased Action Plan - Part 1. (Phase 2.) 
"The Permanent Removal of all Dumped Waste Materials from the Site".
Page 4.  Habitat Restoration Programme Illustrated Progress Reports. Progress with Phased Action Plan - Part 1. (Phase 3.)
"Reconstruction of the Masonry Infrastructure".
(The Web-published version of this Document does not contain Karst Water Physico-Chemical Analysis Data, Bacteriological Reports or Species Sightings Records.)

.Operational Progress Reports by B. Lewarne, Honorary Science Officer.
Copyright © 2006. The Devon Karst Research Society & Speleološko društvo "Zelena Brda". 
Original Proposals by The Devon Karst Research Society, dated 01 May 2003.

This is a Project within the remit of the Foreign Assistance Programme of the Foreign Policy of the Devon Karst Research Society, May 2003-2009.
05 September 2003 :
The situation at the Site on 05 September 2003 was one of profuse growth both inside and around the outside of the masonry shaft where it meets with the Canal floor at ground-level. The following Photos illustrate this.


Photo VO-PRp1.- 1. Illustrating a view of Vrelo "Oko" and the profuse tree and bush growth in its access shaft
immediately prior to clearance at 1250 hrs. on 05 September 2003.
(Photo :  B. Lewarne, 05 September 2003.)


Photo VO-PRp1.- 2. Illustrating in greater detail the profuse tree and bush growth in the access shaft 
of Vrelo "Oko", immediately prior to clearance at 1250 hrs. on 05 September 2003.
(Photo :  B. Lewarne, 05 September 2003.)


Photo VO-PRp1.- 3. Illustrating the cleared surface canal floor area surrounding the entrance shaft of Vrelo "Oko".
(Photo :  B. Lewarne, 05 September 2003.)


Photo VO-PRp1.- 4. Illustrating the successful clearance of the sapling growth on the outside perimeter of the shaft of Vrelo "Oko".
(Photo :  B. Lewarne, 05 September 2003.)


Photo VO-PRp1.- 5. Illustrating in greater detail the damaging root system which has penetrated the structure of 
the shaft at ground level on the outside perimeter of the shaft of Vrelo "Oko".
(Photo :  B. Lewarne, 05 September 2003.)


Photo VO-PRp1.- 6. Illustrating details, during clearance, of one of the damaging root systems which has penetrated 
the shaft structure of Vrelo "Oko" on its inside diameter below ground level.
(Photo :  B. Lewarne, 05 September 2003.)


Photo VO-PRp1.- 7. Illustrating a view of the top flight of descending spiral stone steps inside the cleared shaft of Vrelo "Oko".
(Photo :  B. Lewarne, 05 September 2003.)


Photo VO-PRp1.- 8. Illustrating another view of the second flight of descending spiral stone steps inside the cleared shaft of Vrelo "Oko".
(Photo :  B. Lewarne, 05 September 2003.)


Photo VO-PRp1.- 9. Illustrating a view of where the third flight of descending spiral stone steps should be visible inside the
cleared shaft of Vrelo "Oko". The masonry archway, above the large rubber tyre, supports the top flightt of descending spiral stone steps.
The portal to the cave entrance or spring mouth lies somewhere below the pile of waste materials.
(Photo :  B. Lewarne, 05 September 2003.)
 
 

PHASE 1.  WAS COMPLETED ON 05 SEPTEMBER, 2003.













Although the Site was officially cleared of vegetation on 05 September 2003., it took visits over the following 2 years to remove or destroy the recurring re-growth of vegetation. Details of the vegetation regrowth and its removal can be seen in the illustrated reports on the other phases of work at this location.

In 2005 through to 2007, many of the deeply embedded roots had to be either burned out or treated with a systemic biodegradable root killer or both.
It is envisaged that further very minor occurrences of re-growth will continue over future years until the masonry structure is re-mortared in the PHASE 3. operation.

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