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Matter-economical roles of the evergreen foliage ofAucuba japonica, an understory shrub in the warm-temperate region of Japan

1. Leaf demography, productivity and dry matter economy

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Abstract

Leaf demography and productivity ofAucuba japonica, an understory shrub in the warm-temperate region, were examined and dry matter economy was analyzed to evaluate the roles of the evergreen foliage. Turnover of leaves occurred during a short period in spring. The mean leaf life span was about 2.6 years. Annual NAR (net assimilation rate) of each sample shoot was calculated from the biomass and the total dead mass estimated from scars of leaves and floral parts. The average NAR was 1.34±0.22 g·g−1·yr−1. The ratio of dry matter produced by leaves during their whole life span to the initial investment was 3.45±0.37. The annual NAR calculated for individual plants was negatively related to the life span of their leaves. The seasonal change in SLW (specific leaf weight) showed that the reserve material in leaves was accumulated from autumn to early spring and was consumed for the growth of new organs in the following season. The dry matter withdrawn in spring from the overwintering foliage amounted to 40% of dry mass of the new organs developed.

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References

  • Chabot, B.F. andD.J. Hicks. 1982. The ecology of leaf life spans. Ann. Rev. Ecol. Syst.13: 229–259.

    Article  Google Scholar 

  • Hara, N. 1980. Shoot development ofAucuba japonica I. Morphological study. Bot. Mag. Tokyo93: 101–116.

    Article  Google Scholar 

  • Kawano, S., J. Masuda, H. Takasu andF. Yoshie. 1983. The productive and reproductive biology of flowering plants XI. Assimilation behavior of several evergreen temperate woodland plants and evolutionary-ecological implications. J. Coll. Lib. Arts, Toyama Univ., Nat. Sci.16: 31–65.

    Google Scholar 

  • Kimura, M., M. Ohya and E. Tanaka. 1972. Production processes ofOphiopogon planiscapus population grown in a mixed forest stand. JIBP/PP-Photosynthesis Level III, Report 1971: 76–79.

  • —,M. Funakoshi, S. Sudo, T. Masuzawa, T. Nakamura andK. Matsuda. 1982. Productivity and mineral cycling in an oak coppice forest 2. Annual net production of the forest. Bot. Mag. Tokyo95: 359–373.

    Article  Google Scholar 

  • —,J. Suzuki, M. Tachibana andH. Tahara. 1983. Role of evergreen foliage in the nitrogen economy during shoot growth ofTernstroemia gymnanthera, a warm-temperate broadleaf tree. Bot. Mag. Tokyo96: 75–83.

    Article  Google Scholar 

  • Kira, T. andK. Yabuki. 1978. Primary production rates in the Minamata forest.In: T. Kiraet al., ed., Biological Production in Warm-Temperate Evergreen Oak Forest of Japan, JIBP Synthesis18: 131–138. Univ. of Tokyo Press, Tokyo.

    Google Scholar 

  • Koizumi, H.. 1985. Studies on the life history of an evergreen herb,Pylora japonica, population on a forest floor in a warm-temperate region 1. Growth, net production and matter economy. Bot. Mag. Tokyo98: 383–392.

    Article  Google Scholar 

  • — andY. Ohshima. 1985. Seasonal changes in photosynthesis of four understory herbs in deciduous forests. Bot. Mag. Tokyo98: 1–13.

    Article  Google Scholar 

  • Kusumoto, T. 1961. An ecological analysis of the distribution of broad-leaved evergreen trees, based on the dry matter production. Jap. J. Bot.17: 307–331.

    Google Scholar 

  • Midorikawa, B. 1959. Growth analytical study of altherbosa on Mt. Hakkoda, North-East Japan. Ecol. Rev.15: 83–117.

    Google Scholar 

  • Mutoh, N. 1968. Phosphorus economy in seedling ofPinus densiflora andLarix leptolepis. Bot. Mag. Tokyo81: 535–544.

    Google Scholar 

  • Oland, K.. 1963. Changes in the content of dry matter and major nutrient elements of apple foliage during senescence and abscission. Physiol. Plant.16: 682–694.

    Article  CAS  Google Scholar 

  • Saeki, T. andN. Nomoto. 1958. On the seasonal change of photosynthetic activity of some deciduous and evergreen broadleaf trees. Bot. Mag. Tokyo71: 235–241.

    Google Scholar 

  • Yamamura, Y. 1984. Matter production processes ofReineckia carnea Kunth, an evergreen forest floor herb in the warm-temperate region of Japan. Bot. Mag. Tokyo97: 179–191.

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Biology, Faculty of Science, Tokyo Metropolitan University, Setagaya-ku, 158, Tokyo

    Yasuo Yamamura

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  1. Yasuo Yamamura
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Yamamura, Y. Matter-economical roles of the evergreen foliage ofAucuba japonica, an understory shrub in the warm-temperate region of Japan. Bot Mag Tokyo 99, 323–332 (1986). https://doi.org/10.1007/BF02488713

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  • DOI: https://doi.org/10.1007/BF02488713

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