Comparing regional differentiation of land cover changes in natural and administrative regions of the Czech Republic using multivariate statistics

The detection and evaluations of land cover changes represent the major task for landscape transformation studies in post-communistic countries. The results of such evaluation are, however, highly influenced by spatial delimitation of monitored units as natural or administrative regions. Moreover, the objective quantitative assessment of land cover changes and their typologies in different types of regions can be hardly done by traditional map-interpretation approach. The aim of the present research was to evaluate the differences in results of land cover changes in the Czech Republic detected in natural (93 geomorphological units) and administrative (77 districts) regions using multivariate statistics. To analyse land cover (LC) changes we used STATISTICA 9 software. The application of principal component analysis (PCA), factor analysis (FA) and cluster analysis (CA) reveals the main overall trends in land cover changes in the Czech Republic. We applied PCA, CA and FA to land cover data from CORINE projects in 1990, 2000 and 2006. We analyzed LC changes in geomorphological units of Czechia as a whole. We made our calculation based on standardised data for land cover classes. The final number of variables (LC classes) used in the study was 11, drawing upon generalisation of only those land cover classes that are present in Czech landscape. For both sets of territorial units (i.e. natural and administrative), we calculated the Euclidean distance (full connections) between the cases (territorial units). The k-means method and hierarchical clustering were used for clustering. Based on these methods we set the typology of land cover changes in natural and administrative units. Finally, we assessed the differences between these typologies as regards statistical distribution of regions among the individual types. The factors influencing differences between these typologies are discussed, concluding in considerations on a role of spatial delimitation in land cover changes studies.

Evaluating the development of the landscape horizontal structure in 2nd half of 20th century - case studies from Northwestern Bohemia

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V zemi homolovitých vrchů

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Typology of the districts in Czechia based on land cover structure =Typologie okresů Česka na základě krajinného pokryvu

The authors analyse land cover changes in Czechia after 1990 on a meso-scale, i.e., on the administrative unit/district scale. The CORINE land cover database makes it possible to compare land cover differences and similarities in 1990, 2000 and 2006. The objective of this report is to set out a district typology according to land cover structure, and this will be achieved through the use of statistical methodologies. An intermediate objective is to establish land cover change trends and tendencies, including the intensity and spatial differentiation of these changes. An additional objective is to designate the main driving forces behind these changes. The presumption that land cover in Czechia is tending to become a multi-functional landscape has not been confirmed at the district scale. In contrast, in some districts, monofunctionality is increasing regarding the frequency of land cover classes.17219

Role vymezení regionů při studiu změn krajinného pokryvu :případová studie Česká republika po roce 1990

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Peking - metropole Ríše středu

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Aljaška - země plná výzev, ale i problémů

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