Item type |
学術雑誌論文 / Journal Article(1) |
公開日 |
2011-06-20 |
タイトル |
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タイトル |
Spatial and temporal variations in the photosynthesis-nitrogen relationship in a Japanese cedar (Cryptomeria japonica D. Don) canopy |
言語 |
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言語 |
eng |
DOI |
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関連識別子 |
https://doi.org/10.1007/s11099-010-0031-6 |
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関連名称 |
10.1007/s11099-010-0031-6 |
キーワード |
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主題 |
canopy nitrogen distribution, light environment, needle development, photosynthetic capacity, winter depression |
資源タイプ |
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資源 |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
著者 |
Kobayashi, H
Inoue, S
Gyokusen, K
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信州大学研究者総覧へのリンク |
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氏名 |
Kobayashi, H |
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URL |
http://soar-rd.shinshu-u.ac.jp/profile/ja.ZNfCgUfp.html |
出版者 |
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出版者 |
SPRINGER |
引用 |
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内容記述 |
PHOTOSYNTHETICA. 48(2): 249-249(2010) |
書誌情報 |
PHOTOSYNTHETICA
巻 48,
号 2,
p. 249-249,
発行日 2010-06
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内容記述 |
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内容記述 |
The original publication is available at www.springerlink.com |
抄録 |
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内容記述 |
Spatial and temporal variations in light-saturated photosynthetic capacity and needle nitrogen (N) content were investigated in one 8 m tall Japanese cedar (Cryptomeria japonica D. Don) canopy for a full year. The photosynthetic capacity and needle N content in various layers of the canopy were measured every month. Temporal variations in photosynthetic capacity and needle N content expressed on a projected-area basis (P-area, N-area) were similar. Furthermore, both P-area and N-area decreased with increasing depth from the top of the canopy on each sampling date. As a consequence, a significant correlation was observed between N-area and P-area. Temporal variations in photosynthetic capacity and needle N content expressed on a mass basis (P-mass, N-mass) were also similar. P-mass also decreased with increasing canopy depth. However, in contrast to N-area, there was only a slight decrease in N-mass with increasing canopy depth. Hence, the correlation between N-mass and P-mass was lower than the projected-area value. Because N-area was highly correlated with the needle mass per projected-area (NMA), the spatial variation in N-area (and therefore P-area) in the canopy is attributed to the variation in NMA, which decreases as the depth from the top of the canopy increases. Furthermore, the slope of the linear regression between N-area and NMA differed between sampling dates, indicating that the temporal variations in N-area (and therefore P-area) are strongly influenced by N-mass. For most of the sampling dates, a linear regression between N-area and P-area tends to converge into a single line segment. However, on several sampling dates, there was a pronounced decline in P-area below this line segment. This reduction in P-area, which does not accompany a reduction in Narea, seems to be attributable to stomatal limitations induced by the low soil temperature in winter and early spring. |
資源タイプ(コンテンツの種類) |
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内容記述 |
Article |
ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0300-3604 |
書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AA00773340 |
出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |