Stem diameter and bark surface area of the fluted trunk of Balanites maughamii (Balanitaceae) | Zendy

Vivienne L. Williams | Zendy; K. Balkwill | Zendy; E.T.F. Witkowski | Zendy

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Stem diameter and bark surface area of the fluted trunk of <i>Balanites</i> <i>maughamii</i> (Balanitaceae)

Author(s) -

Vivienne L. Williams,

K. Balkwill,

E.T.F. Witkowski

Publication year - 2007

Publication title -

bothalia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.457

H-Index - 20

eISSN - 2311-9284

pISSN - 0006-8241

DOI - 10.4102/abc.v37i2.321

Subject(s) - circumference , bark (sound) , balanites aegyptiaca , botany , horticulture , trunk , mathematics , biology , forestry , zoology , geography , medicine , geometry , alternative medicine , pathology

Balanites maughamii Sprague (Balanitaceae) is a woodland tree used and harvested for bark products in the traditional medicine trade o f South Africa. The tree has a distinctively fluted and buttressed stem, especially in mature individuals. This short communication quantifies the relationship between two diameter measurements D1 and D2 that respectively exclude and include the bark surface contained in the convolutions of the flutes at five height intervals up the stem to 2 m. Regressions show D1 to be an accurate predictor of D2 (r^ =0.97-0.99) over a range of tree sizes, hence obviating the necessity to measure both D1 and D2. The circumference and bark surface area on the stem was determined to estimate the quantity of bark that can potentially be harvested. At least 69% of the stem circumference and bark surface area was estimated to be contained within the convolutions of the flutes.

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