Geografija / Geography
 ISSN 1392-1096 |
2008 m. Nr. 1 Ecological maps of Lithuania: subject, cartographical methods, perspectives
Česnulevičius A. Ecological map of Lithuania: subject, cartographical methods, perspectives. Geografija. 2008. T. 44. Nr. 1. ISSN 1392-1096.
Compilation of ecological maps was assumed in Lithuania in the 70s of the 20th century. Since then, ecological mapping has undergone marked transformations. The timeframe of four decades may be divided into periods based on the dominant content of maps: 1. Environmental maps (preserved territories, natural monuments, etc.). 2. Maps describing the ecological state of discrete components (water pollution, air pollution, etc.). 3. Generalized ecosystems maps. They are mainly designed for depiction of the ecological state of separate geospheres: atmosphere, hydrosphere and lithosphere. 4. Synthetic or sozological maps of different geospheres (geochemical, hydrochemical, ecological state, etc.). A few trends of ecological mappings developed: scientific, educational and informational. All these types of maps are compiled using almost identical methods: areas, signs, localized diagrams, motion signs (vectors), qualitative and quantitative backgrounds, and isolines. The perspective of ecological mapping is associated with sozological maps whose content is able to embrace all componential ecological maps. Keywords: ecological maps, cartographical methods, periods of ecological mapping |