Class structure

java.lang.Object
  |
  +--structure

class structure

extends java.lang.Object

structure : caculates structural indicies for class stand in TreeGrOSS. There are methods for Shannon-Index, A-Profil, Percentage of trees with different species neighbor, percentage of height differentiation, percentage of diameter differentiation http://treegross.sourceforge.net For more information see: NAGEL, J. (1999): Konzeptionelle Überlegungen zum schrittweisen Aufbau eines waldwachstumskundlichen Simulationssystems für Nordwestdeutschland. Schriften aus der Forstlichen Fakultät der Universität Göttingen und der Nieders. Forstl. Versuchsanstalt, Band 128, J.D. Sauerländer's Verlag, Frankfurt a.M., S.122 or BWINPro User's Manual http://www.nfv.gwdg/nfvabw01.htm

Author:

Juergen Nagel

Constructor Summary

(package private)

structure()

Method Summary

(package private) double	a_index(stand st) calculates the A the species profile index by Pretzsch for class stand
(package private) double	neighbormix(stand st) percentage of trees with a neighbour of a different species
(package private) double	shannon(stand st) shannon calculates the Shannon-Index for the living trees of class stand
(package private) double	tart(stand st) percentage of art differenciation, if next tree is of different species then the difference is 1.0 because there is a gap in the stand
(package private) double	td(stand st) percentage of diameter differenciation, (see Td von Gadow), modified if next tree is more than both trees height in distance away, then the difference is 1.0 because there is a gap in the stand
(package private) double	th(stand st) percentage of height differenciation, (see Th von Gadow), modified if next tree is more than both trees height in distance away, then the difference is 1.0 because there is a gap in the stand

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

structure

structure()

Method Detail

shannon

double shannon(stand st)

shannon calculates the Shannon-Index for the living trees of class stand

a_index

double a_index(stand st)

calculates the A the species profile index by Pretzsch for class stand

neighbormix

double neighbormix(stand st)

percentage of trees with a neighbour of a different species

th

double th(stand st)

percentage of height differenciation, (see Th von Gadow), modified if next tree is more than both trees height in distance away, then the difference is 1.0 because there is a gap in the stand

td

double td(stand st)

percentage of diameter differenciation, (see Td von Gadow), modified if next tree is more than both trees height in distance away, then the difference is 1.0 because there is a gap in the stand

tart

double tart(stand st)

percentage of art differenciation, if next tree is of different species then the difference is 1.0 because there is a gap in the stand