AGROVOC: AGROVOC: basal area

measure > dimensions > area > basal area

basal area

Cross-sectional area of trees measured at breast height (4.5 feet from ground level), or of grasses and shrubs measured 1 inch from ground level used to determine phytomass. Basal area is usually expressed as square units per unit area.
Created: 4/6/18
Last modified: 6/28/22
(en)

This principle has been applied to various forest sampling problems but most notably to estimating basal area per unit area by angle counting, where inclusion of a tree in the count depends on the basal area of the tree and its proximity to the sampling point, ie small trees are not included if they are some distance from the sampling point, while larger trees will be included at even greater distances.Faculty of Science, http://sres.anu.edu.au/associated/ mensuration/BrackandWood1998/S_BA.HTM (en)

Created: 2018-04-13T13:53:11Z
Last modified: 2018-04-13T15:54:20Z
skos:notation: fdca82ae
مساحة قاعدية

Arabic
Created: 2018-04-13T13:53:31Z
Last modified: 2018-04-13T15:54:21Z
skos:notation: fdca82ae
胸高断面积

Chinese
Created: 2018-04-13T13:55:21Z
Last modified: 2018-04-13T16:14:03Z
skos:notation: fdca82ae
grondvlak

Dutch
Created: 2018-04-13T13:53:22Z
Last modified: 2018-04-13T15:54:20Z
skos:notation: fdca82ae
surface terrière

French
Created: 2021-01-05T18:55:30
skos:notation: fdca82ae
Bestandesgrundfläche

German
Created: 2019-12-23T15:27:31.82+01:00
skos:notation: fdca82ae
Area basimetrica

Italian
Created: 2018-04-13T13:55:33Z
Last modified: 2021-06-16T21:24:42Z
skos:notation: fdca82ae
área basal

Portuguese
Created: 2018-04-13T13:55:33Z
Last modified: 2021-06-16T21:24:42Z
skos:notation: fdca82ae
área basal

Spanish
Created: 2018-04-13T13:53:43Z
Last modified: 2018-04-13T15:54:20Z
skos:notation: 52f504ab
área basimétrica
Created: 2018-04-06T13:38:07Z
Last modified: 2018-04-13T15:54:12Z
skos:notation: fdca82ae
bazal alan

Turkish
Created: 2018-04-06T13:38:16Z
Last modified: 2018-04-13T15:54:13Z
skos:notation: fede6072
gövde alanı

http://aims.fao.org/aos/agrovoc/c_fdca82ae

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