Hort. Sci. (Prague), 2009, 36(4):154-161 | DOI: 10.17221/60/2008-HORTSCI

Testing of Koch method applied for evaluation of ornamental trees in the Czech Republic

P. Bulíř
Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Průhonice, Czech Republic

Koch method of ornamental trees evaluation is based on interest paid on costs invested in tree-growing up to their maturity stage minus deductions for age, defects and damage. The aim of this paper is to apply the above mentioned method in the economic conditions of the Czech Republic. The paper presents essential economic data generated in accordance with the technological model of tree growing at a permanent site. We also describe the mechanism of the so-called base tree price calculation as a basis for the subtraction of deductions derived from its current condition. The calculated base tree prices are illustratively compared to prices based on the to-date applied calculating techniques and the relevant regulation. We also refer to the method of base price adjustment based on the criterion of landscape tree value. The mechanism of price calculation applied for Koch method testing included two modifications. The first relates to due consideration of growth qualities when calculating development care costs; the other introduces landscaping value indicator as the only base price adjustment to achieve the resulting price, corresponding with the current tree condition.

Keywords: Koch method; woody species evaluation; ornamental trees; tree-growing costs; development care; base price; resulting price; landscaping value

Published: December 31, 2009  Show citation

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Bulíř P. Testing of Koch method applied for evaluation of ornamental trees in the Czech Republic. Hort. Sci. (Prague). 2009;36(4):154-161. doi: 10.17221/60/2008-HORTSCI.
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