Using old military survey maps and orthophotograph maps to analyse long-term land cover changes – Case study (Czech Republic)

摘要: Abstract The underlying goal of the study is to further develop and refine an existing method for making a detailed analysis long-term changes in land cover on basis old Military Survey Maps orthophotograph maps GIS environment. This may contribute better understanding landscape dynamics over period more than 250 years. knowledge that acquired can be applied planning procedures order provide relevant management future. was carried out lowland area Nove Dvory Žehusice, Czech Republic, which comprises 21 cadastral units (a total 113 km 2 ). located Central Bohemia, east town Kutna Hora, UNESCO World Heritage Site. Žehusice intensively utilized agricultural landscape. First (1785), Second (1851) Third Surveys (1877) present-day map Republic were used as data resources. They have been digitized, interpreted analysed main categories correspond change trends types whole. most significant features dynamic are decrease permanent grasslands (from 18% 5%) water surfaces 6% less 1%), especially due pond drainage at end 18th century first half 19th century, result attempts obtain arable land. growth lands remarkable 53% 67%). suitable analysing evaluating development macrostructure. However, shortcoming they suffer from some geodetic inaccuracy, therefore support only approximate quantification between other time horizons. cannot analyses microstructure, their inaccurate specification segments, scale original (scales ranging 1:25,000 1:28,800), makes them unusable level individual plots. When line segments Maps, it appropriate observe length characteristics, rather area. Present-day source material surveying state covers, them, large areas. legibility depends many factors, these need taken into consideration. defining distinct influence interpretation under investigation.