文章基本信息

标题：Untersuchung der Nutzungsmöglichkeiten von amtlichen Laserscannerdaten für den Wald-Forst-Bereich - Entwicklung von Methoden für forstliche Inventur- und Monitoringaufgaben im Rahmen der FFH Kartierung
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作者：KOCH, B., WALENTOWSKI, H., DEES, M., SEITZ, R
期刊名称：Waldökologie-Online
印刷版ISSN：1614-7103
出版年度：2009
卷号：2009
期号：09
页码：23-37
出版社：Arbeitsgemeinschaft Forstliche Standorts- und Vegetationskunde (AFSV)
摘要：The present article outlines the possible use of public Airborne Laserscanning (ALS) data, furnished by the Bavarian Land Survey Administration for the assessment, evaluation and monitoring of FFH areas (Special Areas of Conservation SAC). First of all, the different information levels of importance for a characterization of FFH areas are defined. On the basis of this definition, for each described information level the availability of information out of ALS data is tested. In this context, different methods of information assessment are investigated. FFH areas in the pre-alpine area of Bavaria, offering a maximum of ecological heterogeneity, have been used as test sites. The investigation included topographical structures like inclination of forest stands and the semi-automatic mapping of canyons and ditches. In the process of the assessment of forest structures, special emphasis was laid on the mapping of old-growth trees and gaps as well as on the detection of forest stand types, the percentage of deadwood and habitat trees. Whereas the detection of deadwood and habitat trees proved to be impossible using public ALS data of low point density, the assessment of stand types offered poor results. The use of ALS data for the assessment of topographic and forest structures however proved to be very successful.