BibTeX
@MISC{Publishing_landscapeecology,
author = {Spb Academic Publishing and Felix Kienast},
title = {Landscape Ecology vol. 8 no. 2 pp 103-118 (1993)},
year = {}
}
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Abstract
Various methods for storing, retrieving, and analyzing historic land use records by means of electronic data processing are evaluated. The procedures are illustrated with data from a pilot study on the Swiss Plateau which is part of a broader landscape historical monitoring program at the Swiss Federal Institute of Forest, Snow and Landscape Research. Theland use matrix was derived from topographic maps, aerial photographs and other land use records and spans approximately 100yrs with an updating cycle of 7 to 20 yrs. A special technique was developedto generate series of digital maps and to superimpose the data layers of various time steps. Each landscape element is described with time-stamped attributes to ensure access to the entire "life from any point in space or time. The proposed data model proved to be a powerful tool for routine updating of digital maps. It canbe used by practitioners as well as scientistsworking with Geographical Infor- mation Systems or similar package). With this procedure, disturbance maps over any number of available updates can be quickly generated, allowingthe user to identify zones of similar degrading or up- grading tendency. The procedures for analyzing changing landscape structures include calculation of infor- mation theoretic indices (diversity, dominance), calculation of fractals, edge analysis, as well as landscape assessment along random traverses. The latter proved to be especially powerful, where fre- quencies were evaluated. On the basis of all parameters calculated, landscape structures on the study plot seem to be ecologically most favorable in the followed by a strong degradation in the World War and the post-World War period. In contrast to many hypotheses, the landscape structures in the second half of the 19th centu...
Keyphrases
landscape ecology vol landscape structure digital map random traverse electronic data processing various time step landscape research historic land use record theland use matrix topographic map fre quencies many hypothesis post-world war period pilot study landscape element entire life infor mation theoretic index aerial photograph developedto generate series routine updating grading tendency time-stamped attribute landscape historical monitoring program landscape assessment second half disturbance map powerful tool world war available update various method study plot strong degradation special technique updating cycle similar degrading data model swiss plateau land use record similar package data layer edge analysis swiss federal institute geographical infor mation system
