Danube Rivers Morphology and Revitalization - DANUBEPARKS

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arriers limit the natural recovery of damaged ecosystems. It is important todistinguish between the two, because they require different restoration approaches.The first is controlled by interference from the other organisms, ususally invasiveweeds or other plants that prevent natural recovery. Reducing problematic species9selective plant removal with herbicides, fire, mechanical, or hand treatements)and/or adding appropriate species are the most effective strategies for thesecircumstances. The second barrier oparates when dysfunctional hydrologicprocesses create abyotic limitations to recovery. After identifying limiting features ofthe phisycal environmnet, we can design restoration strategies that jumps-start theecosystem’s self-repairing mechanisms. Two aspects of the phisycal environment aremost relevant to ecological restoration: physical controls over resource fluxes andphysical controls over micro-environmental conditions.Healthy ecosystemIncreased erosion (decreasednutrient and water-holdingcapacity)Decreased soil structureOvergrazingCultivationDeforestationMiningProlonged loss of plant andorganic material on soil surfaceDecreased infiltration andincreased runoffDecreased biotic activity in soilDesertificationReduced soil-water for plantgrowthReduced fertility and soilorganic matterDecreased plant productionDecreased organic inputs to soilFigure 10 – Soil degradation cycle (after Martin R. Perrow)Manipulation of the biota. The reconstruction of an approapriate plantcommunisty is a sine qua non for the restoration of any degraded ecosystem.Clearly, the plant communities of any ecosystem have an element of intrinsicdistinctiveness that represents the biodiversity of the system. Furthermore, attemptsto restore most other aspects of ecosystem structure and function cannot suceed,partially or wholly, without the authentic primary producers. The phyical structure andchemical composition of the stands of plants that are establishes, combined with thespecificity of many trophic relationships, strongly influence the potential for77
estoration of animal and microbial communities. For the purpose of restoration, landformand the proprietes of the soil environment are determinants of plantcommunities in two senses.They are integrated attributes of succesional status thatare part of the functional specification of any target ecosystems and hence thevegetation it can support. The staring point for the restoration of plant communitiesmust be the restoration of phisycal and soil environments apppropriate to them, ortheir succesional precursors. Even where highly satisfactory emulations of a desiredpfysico-chemical environment can be achieved, it will usually be necessary tointroduce populations of desired plant species, to regulate their relative abundanceand to remove or discourage unwanted, invasice species. Such manipulations maybecome the mainstay of restoration when the initial disturbance is primarly the resultof the removal of crucial species or of invasion by alien species.III. 4. Progressive development of tree problems (Logical Framework Analyse)and the SketchMatch method for scanrios and possible renaturation measuresIII.4.1 Progressive development of tree problems. In time, favorability andrestrictiveness factors have played an important role in changing by damage or lossof geographical landscape components in the Danube River (abiotic, biotic, factorsarising from local connection with the natural life, ethnic identity elements or religiouslife). Information about existing problems came from a variety of sources includingsemi-structured interviews, ethnographic agenda, local media and specializedliterature.Problem analysis was conducted to create the conceptual model of humanintervention in the geographic landscape of the Danube River, starting fromidentifying key factors that have a modifier role and their effect as shown in theproblem tree. Tree problems show the problems in a hierarchical order. First will beidentified causes and effects, then they will be summed and placed in a wider range,then building the tree as follows:— what are the causes are at the bottom of the tree;— what are the effects are at the top of the tree.78
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MINISTERUL MEDIULUI SI PADURILORINS
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WORK TEAM‣ DANUBE DELTA NATIONAL
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Phase 1 - Preparation of the Danube
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The river restoration projects prec
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the Upper Danube and > 30 km in the
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navigation. Hence, the creation and
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Non-native and Invasive speciesFor
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members of the public, and cooperat
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activities. This principle is actua
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2007. The exercise should be finali
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from 30 ha to 600.000 ha, have been
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Challenges and recommendations for
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Bureaucracy, corruption, and politi
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MATERIALS AND METHODS WITHIN PHASE
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addresses the longitudinal linkages
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create an adequate territorial plan
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Activity 1.2. A public debate about
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Aims of the project:• Bring back
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• strengthening capacity to prote
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Elaborate detailed technical engine
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Project name:3. Extension of the ex
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Whole the area of Belene Island com
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improve what was left of the rich n
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sections about 35 ha of new gravel
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fish, the hard construction caused
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Results of the project:At the end o
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The higher reaches of the slopes wh
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The new channel, which rejoins the
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Project name:10. National Park Dona
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Project name:12. LIFE05NAT/SK/00011
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presentation of the project in medi
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Project name:13. Krapje Djol (Croat
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Project name:15. Ecological Restora
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• the periodical alternation of f
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Another important finding was that
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een destroyed. Since the political
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It is an intensive process that org
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Such tools are:• "time line chart
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1.1.2. Classification of Danube Riv
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CONCLUSIONSAlong the Danube River,
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BIBLIOGRAPHY1. Binder W., (2008), R
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WORK TEAM DANUBE DELTA NATIONAL INS
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Phase 2 - Comprehensive Danube Rive
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This first activity consists in the
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The river grows and the gradient le
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The importance of the connectivityC
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Does the design invite invasive spe
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3. Self sustainingThe ecosystem is
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Table 2- List of revitalisation pro
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2.3.2. Background information (Babi
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Catchment3 area size:4 Geology1 sma
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456to improve longitudinalconnectiv
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The second project that was success
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2.3.5. Cernovca background Informat
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2.3.7. Ecological reconstruction im
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For the areas, the reestablishment
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Once a general agreement on reasona
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BIBLIOGRAPHY1. Benke, A. C. (2001),
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WORK TEAM‣ DANUBE DELTA NATIONAL
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III.2.2. Ecoregions and surface wat
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The geometric features of the river
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Revitalization as defined in Los An
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Danube Basin region is a functional
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egimes. However, the Iron Curtain a
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The main issuesEnvironment in the D
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states that joined at different tim
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The role and contribution of Romani
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Types of eligible expenditure- Gene
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I.4 Conceptual Framework and its re
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Is the river able to connect with i
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Page 150 and 151: Creating oportunities and valuesIn
Page 152 and 153: Figure 4 - General model of ecosyst
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Page 156 and 157: Starting form the Corine Land Cover
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Page 162 and 163: Reserves (m3)Indicators of availabi
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Page 182 and 183: Environment Agency - CLC200, on lan
Page 184 and 185: ‣ Monitoring results of revitaliz
Page 186 and 187: ‣ Morava River (Slovakia and Aust
Page 188 and 189: (i) The surface water bodies within
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Page 192 and 193: System BAlternativecharacterisation
Page 194 and 195: water type. In such circumstances M
Page 198 and 199: III.4.2 Metoda SketchMatch (SM)An i
Page 200 and 201: c) The Focus groups structures (hom
Page 202 and 203: 4 Sidearm restoration project Schö
Page 204 and 205: The ecosystem is self-sustaining. I
Page 206 and 207: Assessemnt CriteriaProject Identifi
Page 208 and 209: V. GUIDE OF MANAGEMENT MEASURESIn t
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Page 212 and 213: VI RELATION BETWEEN THE DANUBE PARK
Page 214 and 215: VI.2 The concept of Integrated Regi
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Page 218 and 219: EECONET emphasizes the importance o
Page 220 and 221: Criteria for selection of core area
Page 222 and 223: D. Selection of the natural areas s
Page 224: 10. Thom, R.M., Diefenderfer H.L.
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Danube Rivers Morphology and Revitalization - DANUBEPARKS

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