RT Journal Article
SR Electronic
A1 Machalová, Jitka
T1 The interception of vagueness in occurrence of plants modeling with using map algebra
JF Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis
YR 2014
VO 57
IS 6
SP 143
OP 152
DO 10.11118/actaun200957060143
UL https://acta.mendelu.cz/artkey/acu-200906-0014.php
AB Information plays an important role in process of decision-making. Information and communication technologies give to the decision-makers not only relevant information, but they help in their interpretation. The basic advantage of fuzzy logic is the capability mathematic catch up the information, which is phrased. If we have set of elements, in that every element is characterised by grade of pertinence (member ship function), we call it fuzzy set. Map algebra is instrument that allows working up the raster representation of reality with using language of the map algebra. The using fuzzy sets for solving spatial problems is qualified by process in 3 steps: a) the correct definition of the type of member ship function, 2) the reserve of quality of input data, and 3) to modelling defined fuzzy sets by expert and the implementation of spatial analysis above them. The article has the goal, exemplify of modelling of occurrence of Epipogium aphyllum in the Czech Republic, to propose the way of spatial analysis above fuzzygeoelements with using map algebra. Only 4 restrictive conditions input to model, and the size of pixel in layer is 10 m. Fuzzy sets are realised above selected raster layers, that were defined in the step 1) by instruments of the map algebra. The resulting model specifies the places with documented occurrence with the high degree of member ship function.