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Standing Biomass and Inorganic Nutrients Distribution for a Camellia japonica Stand at Mt. Cheon-gwan(Janghueng-gun, Jeonnam)

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2005, v.28 no.3, pp.163-168







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Abstract

This study was carried out to estimate above-ground biomass and inorganic nutrient distribution for a Camellia japonica stand located Mt. Cheon-gwan, Jeonnam province. Regression analysis of biomass for stem, current twig, branch and foliage versus diameter at breast height(DBH) was used to calculate regression equations of the form of logY = a + blogD(Y: component biomass, D: DBH). Total above-ground biomass for a Camellia japonica stand was 115.2 ton/ha(47.9 for main stem, 1.4 for current twig, 53.4 for live and dead branch, 5.6 for current foliage and 6.9 for ≥1-yr-old foliage). Component biomass was non-linearly correlated with DBH, and the difference in biomass between ≥1-yr-old and current foliage increased in proportion to DBH. Current foliage and live branch showed higher N, P and K concentrations compared to ≥1-yr-old foliage and dead branch, respectively. However, Ca concentration of current foliage and live branch was lower than that of ≥1-yr-old foliage and dead branch, respectively. Total above-ground inorganic nutrient contents(kg/ha) were distributed as follows; K: 366.4, N: 442.7, Ca: 433.3, Mg: 118.4, P: 50.5 and Na: 25.3. The proportions of inorganic nutrient content for live branch were generally the highest in all the inorganic nutrients.

keywords
Above-ground standing biomass, Allometric regression equation, Camellia japonica, Inorganic nutrient distribution

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