iForest - Biogeosciences and Forestry


Analysing interaction effects in forests using the mark correlation function

K Wälder (1)   , O Wälder (2)

iForest - Biogeosciences and Forestry, Volume 1, Issue 1, Pages 34-38 (2008)
doi: https://doi.org/10.3832/ifor0449-0010034
Published: Feb 28, 2008 - Copyright © 2008 SISEF

Research Articles

The spatial distribution of trees in forests can be described and modelled by point processes where the points are given by the locations (coordinates) of the trees. Further properties of a tree like height or mean crown radius can be interpreted as so called marks of the considered point process characterising the points or trees in some way. The so called mark correlation function describes the spatial correlation of these marks in the observed point pattern. In this paper we introduce a special mark, the overlapping or crown index. We show that mark correlation functions for the considered marks help to understand interaction effects of forest trees.


Forestry statistics, Marked point process, Interaction, Crown index

Authors’ address

K Wälder
Institute for Stochastics, TU Bergakademie Freiberg (Freiberg University of Mining and Technology), Prüferstrasse 9, D-09599, Freiberg (Germany)
O Wälder
TU Dresden (Dresden University of Technology), Institute for Cartography, D-01062, Dresden (Germany)

Corresponding author


Wälder K, Wälder O (2008). Analysing interaction effects in forests using the mark correlation function. iForest 1: 34-38. - doi: 10.3832/ifor0449-0010034

Paper history

Received: May 15, 2007
Accepted: Sep 02, 2007

First online: Feb 28, 2008
Publication Date: Feb 28, 2008
Publication Time: 5.97 months

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