Successional development from stands ofMiscanthus sinensis to stands ofPinus densiflora and elements of microclimates: The seed germination and seedling establishment conditions ofP. densiflora

Kashiwagi, Youko

doi:10.1007/bf00867472

Cited by 3 publications

(2 citation statements)

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“…Although temperatures were not measured in this study, temperatures under coniferous forests tend to be less conducive to decomposition of organic materials than those in grasslands. A study by Kashiwagi () in Nagano, Japan (36°31′N, 138°21′E, 1315 m above sea level) indicated that effective cumulative air temperature (cumulative air temperature above 5 °C at 6 cm above soil surface) of M. sinensis grassland was 2067 °C and for a secondary Pinus densiflora forest was 1648 °C.…”

Section: Discussionmentioning

confidence: 99%

“…Although temperatures were not measured in this study, temperatures under coniferous forests tend to be less conducive to decomposition of organic materials than those in grasslands. A study by Kashiwagi (1991) in Nagano, Japan (36°31′N, 138°21′E, 1315 m above sea level) indicated that effective cumulative air temperature (cumulative air temperature above 5°C at 6 cm Table 3 Carbon input from litter and ash in a semi-natural M. sinensis grassland (Misc-GL), litter in Cryptomeria japonica forest plantation (Cryp-FP), and belowground net primary production (BNPP) within the top 30 cm of soil in both sites in Aso, Kumamoto, Japan Parameter C input rate kg C ha À1 yr À1…”

Section: Soil Carbon Dynamicsmentioning

confidence: 99%

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Carbon sequestration in soil in a semi‐natural Miscanthus sinensis grassland and Cryptomeria japonica forest plantation in Aso, Kumamoto, Japan

et al. 2012

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Although Miscanthus sinensis grasslands (Misc‐GL) and Cryptomeria japonica forest plantations (Cryp‐FP) are proposed bioenergy feedstock systems, their relative capacity to sequester C may be an important factor in determining their potential for sustainable bioenergy production. Therefore, our objective was to quantify changes in soil C sequestration 47 years after a Misc‐GL was converted to a Cryp‐FP. The study was conducted on adjacent Misc‐GL and Cryp‐FP located on Mt. Aso, Kumamoto, Japan. After Cryp‐FP establishment, only the Misc‐GL continued to be managed by annual burning every March. Mass C and N, δ13C, and δ15N at 0–30 cm depth were measured in 5 cm increments. Carbon and N concentrations, C:N ratio, δ13C, and δ15N were measured in litter and/or ash, and rhizomes or roots. Although C input in Misc‐GL by M. sinensis was approximately 36% of that in Cryp‐FP by C. japonica, mean annual soil C sequestration in Misc‐GL (503 kg C ha−1 yr−1) was higher than that in Cryp‐FP (284 kg C ha−1 yr−1). This was likely the result of larger C input from aboveground litter to soil, C‐quality (C:N ratio and lignin concentration in aboveground litter) and possibly more recalcitrant C (charcoal) inputs by annual burning. The difference in soil δ15N between sites indicated that organic C with N had greater cycling between heterotrophic microbes and soil and produces more recalcitrant humus in Misc‐GL than in Cryp‐FP. Our data indicate that in terms of soil C sequestration, maintenance of Misc‐GL may be more advantageous than conversion to Cryp‐FP in Aso, Japan.

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Section: Discussionmentioning

confidence: 99%

“…Although temperatures were not measured in this study, temperatures under coniferous forests tend to be less conducive to decomposition of organic materials than those in grasslands. A study by Kashiwagi (1991) in Nagano, Japan (36°31′N, 138°21′E, 1315 m above sea level) indicated that effective cumulative air temperature (cumulative air temperature above 5°C at 6 cm Table 3 Carbon input from litter and ash in a semi-natural M. sinensis grassland (Misc-GL), litter in Cryptomeria japonica forest plantation (Cryp-FP), and belowground net primary production (BNPP) within the top 30 cm of soil in both sites in Aso, Kumamoto, Japan Parameter C input rate kg C ha À1 yr À1…”

Section: Soil Carbon Dynamicsmentioning

confidence: 99%