White stork can be noticed in the whole territory of Lithuania. Many people don’t consider the danger to this species and the importance to human living environment. I investigated the status and the choice of habitation of the white stork while the intensity of agriculture is reduced. At the beginning of the last century the number of white storks decreased, but now, when the intensity of agriculture reduced, the population of white storks is increasing. The research performed during summer of 2004 in Kedainiai district, testifies that. In comparison with 1994-1995 year accounting results, white stork population largely increased. In 1994-1995 year there were 212 nests found only and in 2004 year – 363 nests. There was identified that forest areas, hydrographical net and agriculture have a strong impact to the choice of habitation. Human activities perform top influence to it. White stork can be reasonably considered as an indicator of ecological agriculture.

Santrauka Vandentvarka – ūkinė ir visuomeninė veikla, susijusi su vandeniu. Pagrindinės veiklos sritys yra: vandentieka, vandenvala, vandens (drėgmės) režimo reguliavimas dirvožemyje ir grunte, vandens (upių, upelių, kanalų, griovių) tėkmės reguliavimas, apsauga nuo potvynių, hidroenergetika, ežerotvarka, tvenkinių įrengimas ir naudojimas, žuvininkystė, vandens telkinių rekreacija, vandens sportas ir turizmas, vandens problemų tyrimai. Vandentvarka taip pat yra planinga veikla, nukreipta į paviršinių ir požeminių vandens resursų ekonomišką naudojimą, jų apskaitą ir apsaugą, visų vandenų poveikio aplinkai ir visuomenei valdymą ir kontrolę, o taip pat jo kokybės gerinimą. Be abejo, vandentvarką galima naudoti ir siauresne prasme, t.y. ne visoms, o tik kelioms su vandeniu susijusiomis problemomis spręsti ir apibūdinti. Paskutiniu metu, vis dažniau vartojamas šis žodis. Šį žodį plačiau vartoja mokslininkai, politikai, gamybininkai. Toks dažnas šio žodžio naudojimas iškreipia jo panaudojimo prasmę. Miesto ir kaimo vandentvarkos problemos turi tik tai sričiai būdingų savybių, todėl kaimo ir miesto vandentvarkos turi panašumų ir skirtumų. Miesto vandentvarka yra siauresnė ir liečia tik gyventojų aprūpinimą kokybišku vandeniu, pramoninį vandentiekį ir pan. Kaimo vandentvarkos problemos žymiai platesnės. Jos liečia: vandentiekį, kaimo kanalizaciją ir valymo įrenginius, vandenų monitoringą, vandens tvenkinius, sausinimo sistemų eksploatavimą, hidroekologiją... [toliau žr. visą tekstą] / SUMMARY In Lithuania there were 2981,8 thous. ha of drained land till 2007. 2582,0 thous. ha or 86,6 % of drained lands belonged to drained by drainage areas of agricultural destinations. In seperate regions the level of drainage is different and differs from 50,9 to 96,8 %. At present in Lithuania the change of property is taking place in the sphere of water management. A lot of elements of water management system are returned to the owners. While carrying out the land reform till 2002 about 2,3 mln. ha of land of the desirable to the returned to the land owners. Only about 20 % of this land has been registered legally. The exact amount of the ameliorated land which was returned and registered is not known. In 2002 the inventorying of the drainage systems and their equipment belonging to the state was performed. Its aim was to specify the amelioration state of the drained land and to strike off the accountancy the unfunctioning drainage systems. In 1998 when it became obvious that the state of the drainage systems differs immensely from the situation indicated in the accountancy operative, but unsufficiently detailed evalution of these systems was performed. So in 2000 a more exact and minute inventorying of the state of drainage systems was carried out. All this work was performed in order to establish the water management system equipment number, their state and change during the latter years and establish the prospects of the reorganization of water management system... [to full text]