文章基本信息

标题：Změny krajiny v chráněném území a okolí NPR Velký a Malý Tisý
其他标题：Landscape Changes in the National Nature Reserve Velký and Malý Tisý and its Environs
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作者：Jiří Žaloudík ; Martin Šíma ; Jaromír Kolejka 等
期刊名称：Životné prostredie
印刷版ISSN：0044-4863
电子版ISSN：2585-7800
出版年度：2005
卷号：39
期号：2
页码：83-87
出版社：Institute of Landscape Ecology of the Slovak Academy of Sciences
摘要：National Nature Reserve Velký and Malý Tisý in southern Bohemia is an example of a dynamically changed area. To recognize the changes of water bodies, vegetation of the littoral zone or ways of land use is possible only by modern geoinformation Technologies including the remote sensing of Earth. Archival air photographs are the best especially in comparison with earlier periods, while changes in the last two decades are documented also by digital satelite images. Considering their different quality and information value of spatial data it is necessary to chose the optimal processing methods. Different methods of digital analyses of picture were used in case study (e.g. creation of multitemporal syntheses and overlapped thematic masks, estimation of thresholds by pseudocolour table, post classification evaluation of changes of objects and geostatistical processes). The results were used in the forming of chronological series of territorial bases of good quality. On their base the most important landscape changes in the area of NNR and its wider surroundings were identified, located and classified. Differentiated intensity as well as the volume of changes in single categories of landscape objects is supported by quantification of existing changes. It is obvious that not even the areas with specific status of protection can escape environmental changes or the different ways remedies. An open question is whether in the future reserveswill be conserved in the present state by "conservation" strategy of protection or whether the area will be developed independently in the case of application of "reservation" nature protection.