Auf Grund des § 3 Abs. 2 des Brandenburgischen Wassergesetzes in der Fassung der Bekanntmachung vom 8. Dezember (GVBl. I S. 50), der durch. From –, Naturschutzfonds Brandenburg is implementing the LIFE Nature . conservation, Brandenburg); Brandenburgisches Wassergesetz (law of . 80 (3) no 7 Brandenburg Building Regulations (Brandenburgische Bauordnung, Act (Hessisches Wassergesetz, HWG) the competent authority may require.

The plan form plays a leading role: Studien und Tagungsberichte, Both wasserrgesetz parameters are character- ronmental Conservation and Regional Planning ized by three functional units of the ecosystem.

Assessment of River habitat. Habitat Map For most of the rivers extreme high floods do not exist; in other cases such floods are very rare.

Assessment of river habitat in Brandenburg, Germany | Ulrich Kamp –

Most of the drainage system was devel- So-called highly-integral parameters such as sinuosity oped or reshaped during the Last Glacial and or the potential for formation of structures are rated Holocene. Rivers were straightened and diverted, river bot- water flows in unnatural rivers. The survey namics can be mitigated by only one grade with good shows that poor general evaluations have their reason floodplain dynamics. In Brandenburg, near-natural conditions have riverbed dynamics are clearly disturbed class 4 ; B if to be re-established for all unnatural rivers.

An appropriate manage- Fig.

Directive WFD to improve the quality of all surface The concept of the river habitat assessment is a com- waters, i. The Stepenitz is the most nat- heavily disturbed classes 4—5 on average Table 3, Fig. In general, slopes are very gentle, and rivers develop meanders and river lakes.

Assessing the variation of a, b. Restrictions In a first step of surveying some basic morphological could be unnatural changes of sinuosity, unnatural loss features such as river width, plan form, and type of land- of structural diversity, or damaging anthropogenic influ- scape are mapped. On average, both riverbed dynam- particularly in the poor assessment of individual param- ics and floodplain dynamics are clearly disturbed class eters of high ecological value such as sinuosity and bank 4.

It is inter- spersed with around 27, km of rivers and around Table 1. Grundlagen und committee is working on the technical and legal imple- Kartierung, pp. Each MLUR develops the political framework and supervis- functional unit includes particular individual parame- es the subordinate water authorities such as the Environ- ters, and a number of different forms help to describe mental Department of Brandenburg Landesumweltamt each of these nine individual parameters.

Landesumweltamt Brandenburg fish migration step, after the removal of bank or vrandenburgische eds. Using the survey sheet, preliminary indices calculate Surveying sub-indices and the final index Table 2. For an interpretation of the results, it is important to The Federal State of Brandenburg is located in the understand the mathematical background of the index northeastern part of Germany and covers an area of system.

The habitat quality of the 25 rivers examined in Bran- denburg varies between little disturbed class 2 and to- tally disturbed class 7 around an average of clearly dis- Floodplain dynamics turbed wassedgesetz 4. Any disturbance of this ca- imately 1, km of rivers had been mapped using the pability will lower the habitat quality.

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In general, riverbed dynamics are rated standardized interviews and discussions with appropri- higher than floodplain dynamics according to their natu- ate authorities. Results from the habitat assessment of rivers in the Federal State of Brandenburg. In Brandenburg, a Inin Rio de Janeiro the United Nations Confer- typical natural lowland river has neither stabilized bot- ence for Environment and Development UNCED tom nor banks; banks are flat and carry natural vegeta- passed the Agenda 21, which binds all signatory nations tion; its course is characterized by meanders; sandbanks to redevelop damaged ecosystems including damaged might develop.

Although it is clear that in urbanized tions, but its floodplain is only extensively cultivated, and some agricultural areas restoration to near-natural and in very few parts flood control exists. Remember me on this computer. The index system also follows the The method was developed to map entire rivers that minimum principle: Grundlagen und Kartierung, pp. Skip to main content. Most of the floodplain is cultivated Since the s Germany assessed the biological and meadows, pastures, fieldsand also mixed land use chemical water quality of all rivers, but it was not earlier agriculture and urban development is common.

The sheet offers portance for an ecological functioning of the river would several descriptions for each parameter from which the enhance its habitat quality. Establishing a framework for community quality, the European Water Framework Directive action in the field of water policy. Re- adjusting national to European standards. Retention includes flood turbed class 1 to little disturbed class 2 Table 3, Fig.

In the s it became toms were deepened, beds and banks were stabilized, clear that river conservation that only focuses on water water was directed into canals, and dams, barrages and quality improvements is not sustainable. Good riverbed dynamics are given, when: Retention plays the leading role: This arbeitsgemeinschaft Wasser, Munich. For such turbed plan form will lead to a low value for riverbed dy- hatched sections restoration to near-natural conditions is namics, even if the potential for structure formation is almost impossible due to competing public interest.

This shows that human impact is hinder migration of flora and fauna; and a natural flood- often significant in floodplains through agriculture, ing behavior is still possible in only limited areas, since urban development, and flood control, and therefore nat- most parts of the floodplain are under agriculture. The more natural such structures are, the higher their ecological value.

Earth Summit Agenda In contrast, the conditions can only be limited or is even impossible be- Oder received low grades for its floodplain dynamics, cause public and private properties require protection since the floodplain is intensively cultivated and flood- from natural hazards such as floodingfor many river ing is limited. The field survey ual parameters, etc. Instead, river dikes were erected.

On ter the actual condition to the reference condition that the other hand, good structures that are of only lesser im- describes the near-natural condition. The user is able to extract diagrams, undertaken to evaluate the results derived from maps, re- thematic maps, maps of different scale, maps of individ- mote sensing data, interviews, etc.

At present, a LAWA sub- eds. Ecomorphological survey of large rivers.

Limnologica 34, — For instance, the Dosse re- often seen as mere traffic and transportation routes, thus ceived low grades for its riverbed dynamics due to the interests focused on technical improvements rather than high number of migration barriers and bank stabiliza- ecological values. Brandenburgicshe river habitat describes the ecomorphological ap- pearance of the river and includes factors such as bed, Legal foundation banks and floodplains.

For special cases such bilization, migration barriers, and brandenburgisfhe of river as navigable river sections or sections in urban areas an water. The latter one Using the overview method the assessment is done at the represents the habitat quality of this river unit.

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