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Estimation of Aboveground Biomass and Belowground Nutrient Contents for a Phyllostachys pubescens stand  

Hwang, Jaehong (Southern Forest Research Center, Korea Forest Research Institute)
Chung, Young-Gyo (Warm Temperate Forest Research Center, Korea Forest Research Institute)
Lee, Sang-Tae (Southern Forest Research Center, Korea Forest Research Institute)
Kim, Byung-Bu (Southern Forest Research Center, Korea Forest Research Institute)
Shin, Hyun-Cheol (Southern Forest Research Center, Korea Forest Research Institute)
Lee, Kyung-Jae (Southern Forest Research Center, Korea Forest Research Institute)
Park, Kyu-Jong (Southern Forest Research Center, Korea Forest Research Institute)
Publication Information
Journal of Korean Society of Forest Science / v.94, no.3, 2005 , pp. 161-167 More about this Journal
Abstract
Above and belowground biomass for Phyllostachys pubescens was determined in Jinju, Gyeongsangnam-do. Regression analyses of dry weights of culms, foliages, and twigs versus diameter at breast height were used to calculate regression equations of the form of log Y = a + blogX. Total aboveground biomass for Phyllostachys pubescens was 69.7 ton/ha and rhizomes and roots biomass were 13.7 ton/ha and 7.5 ton/ha, respectively. Culms account for about 60% of total aboveground biomass. The aboveground biomass of each component was decreased in the order of culms>foliages>twigs. As diameter at breast height grew thicker, the proportion of culms to total aboveground biomass increased. The proportion of dry weight of culms to green weight gradually increased with height in a bamboo tree and ages. Nutrients (kg/ha) of litter layer were distributed as follows: N(45.1), Ca(17.3), K(6.1), Mg(3.6), P(3.5) and Na(0.7). Nitrogen and K were given much weight in total nutrients of rhizomes and roots. These results will be useful in measuring carbon stock and drawing up management plan to increase it for Phyllostachys pubescens stand.
Keywords
allometric regression equation; dry weight; litter layer; rhizomes; soil chemical properties;
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