- Standardsignatur9716
- TitelStand Volume Estimation from Tree Counts in the Context of Vertical Line Sampling
- Verfasser
- Erscheinungsjahr1990
- SeitenS. 274-279
- Illustrationen2 Abb., 20 Lit. Ang.
- MaterialUnselbständiges Werk
- Datensatznummer200088727
- Quelle
- AbstractStand volume estimators are developed in the context of vertical line sampling that depend on counts of sample trees only, rather than on measurements of sample tree dimensions. These estimators are based on three commonly used individual tree volume equations: the constant form factor volume equation, the combined variable volume equation with negative intercept, and the combined variable volume equation with positive intercept. Fieldwork for each of the estimators involves comparison of the squared dbh's of trees that would qualify for selection in an ordinary vertical line sample with numbers chosen randomly from the interval bounded by zero and a fixed maximum squared dbh. Two of the estimators choose sample trees with probability exactly proportional to an individual tree volume equation.
- Schlagwörter
- Klassifikation524.3 (Massenermittlung von Baumgruppen und Beständen (z.B. Probeflächen) [Hierher gehören die Methoden der Massenermittlung einzelner Probeflächen; dagegen sind Fragen der Protokollierung sowie der Anlage, Form und Größe der Probefläche usw. unter 524.4 und 524.6 einzureihen])
524.63 (Stichprobenverfahren einschl. Punktstichprobe. (Vgl. auch 521.62))
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