Needle longevity, photosynthetic rate and nitrogen concentration of eight spruce taxa planted in northern Japan.
Needle longevity, photosynthetic rate and nitrogen concentration of eight spruce taxa planted in northern Japan.
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DOI：
10.1093/treephys/27.11.1585
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发表时间：
2007-11
期刊：
影响因子：
4
通讯作者：
M. Kayama;S. Kitaoka;Wenjie Wang;D. Choi;T. Koike
中科院分区：
文献类型：
--
作者：
M. Kayama;S. Kitaoka;Wenjie Wang;D. Choi;T. Koike
云杉（Picea glehnii Masters， P. jezoensis）的生长特性。比如朱克·卡尔。，来自日本的P. jezoensis var. hondoensis (Mayr) Rehder和P. shirasawae Hayashi， P. abies （L.）岩溶。来自欧洲和P. glauca Voss， P. mariana Britt。斯特恩斯和波格。P.鲁本斯。进行了比较。这些树是在日本北部北海道大学Tomakomai实验森林的类似条件下种植的。测定树木生长、针叶生物量、寿命、光合速率、氮浓度和比叶面积，并计算光合氮利用效率。云杉（Picea jezoensis）、红枣云杉（P. jezoensis var. hondoensis）、冷杉（P. abies）和青花云杉（P. glauca）生长速度快，幼针光合速率高，针尖氮浓度高，针尖寿命短。与此相反，格氏针、白桦、mariana和rubens的生长速率和光合速率较低，针叶氮浓度较低，针叶寿命较长，光合氮利用效率较高。对8个类群的几个生长参数之间的关系进行了分析，结果表明，生物量与质量光合速率和质量氮浓度呈正相关，而质量光合速率和质量氮浓度与针叶寿命呈负相关。尽管在相似的条件下生长，但这两个物种的生长特征差别很大。
Growth characteristics of Picea glehnii Masters, P. jezoensis (Sieb. et Zucc) Carr., P. jezoensis var. hondoensis (Mayr) Rehder and P. shirasawae Hayashi from Japan, P. abies (L.) Karst. from Europe and P. glauca Voss, P. mariana Britt., Sterns and Pogg. and P. rubens Sarg. from North America were compared. The trees were grown in similar conditions at the Tomakomai Experimental Forest of Hokkaido University in northern Japan. Tree growth, needle biomass, longevity, photosynthetic rate, nitrogen concentration and specific leaf area (SLA) were measured, and photosynthetic nitrogen-use efficiency was calculated. Picea jezoensis, P. jezoensis var. hondoensis, P. abies and P. glauca had high growth rates, high photosynthetic rates in young needles, high needle nitrogen concentrations and short needle life spans. In contrast, P. glehnii, P. shirasawae, P. mariana and P. rubens had low growth and photosynthetic rates, low needle nitrogen concentrations, long needle life spans and maintained a high photosynthetic nitrogen-use efficiency in older needles. Examination of relationships between several growth parameters of the eight taxa revealed positive correlations between SLA and mass-based photosynthetic rate and between SLA and mass-based nitrogen concentration, whereas mass-based photosynthetic rate and mass-based nitrogen concentration were negatively correlated with needle longevity. The species differed greatly in growth characteristics despite being grown in similar conditions.