Quantitative analysis of a stand of Pinus densiflora undergoing succession to Quercus mongolica ssp. crispula: 1. A 31-year record of growth and population dynamics of the canopy trees |
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Authors: | Jun Kato and Ichiroku Hayashi |
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Affiliation: | (1) Iwamurada High School, 1248 Iwamurada, Saku, Nagano 385-0022, Japan;(2) Sugadaira Montane Research Institute, University of Tsukuba, Sanada, Nagano 386-2201, Japan;(3) Present address: 173-5, Kosato, Ueda, Nagano 386-0005, Japan |
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Abstract: | We describe the population dynamics, growth of dominant species and plant biomass production in an ecosystem undergoing succession from Pinus densiflora dominance to Quercus mongolica ssp. crispula dominance. The diameter at breast height (DBH) was recorded for a period of 31 years. As DBH increased, the tree density decreased. We estimated the net biomass production of the canopy trees, the biomass of the understory and the average amount of litter. These results suggest that the biomass production of an ecosystem depends on its species composition. In order to estimate future ecosystem productivity, it is necessary to predict temporal changes in species composition. |
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Keywords: | Biomass Diameter at breast height Pinus densiflora Quercus mongolica ssp.crispula Succession |
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