Estimation of the biomass of fine roots and mycorrhizal fungi: a case study in a Japanese red pine (Pinus densiflora) stand

2003 ◽  
Vol 8 (3) ◽  
pp. 221-225 ◽  
Author(s):  
Takami Satomura ◽  
Takayuki Nakatsubo ◽  
Takao Horikoshi
Keyword(s):  
Mycorrhizal Fungi ◽  
Fine Roots ◽  
Pinus Densiflora ◽  
Red Pine ◽  
Japanese Red Pine

Carbon cycling and sequestration in a Japanese red pine (Pinus densiflora) forest on lava flow of Mt. Fuji

2013 ◽  
Vol 28 (5) ◽  
pp. 855-867 ◽  
Author(s):  
Toshiyuki Ohtsuka ◽  
Masaya Negishi ◽  
Kazuyuki Sugita ◽  
Yasuo Iimura ◽  
Mitsuru Hirota
Keyword(s):  
Lava Flow ◽  
Carbon Cycling ◽  
Pinus Densiflora ◽  
Red Pine ◽  
Japanese Red Pine ◽  
Pinus Densiflora Forest

Allelopathy of pinecone in Japanese red pine tree (Pinus densiflora Sieb. et Zucc.)

2003 ◽  
Vol 3 (2) ◽  
pp. 111-116 ◽  
Author(s):  
MARI NODE ◽  
KAORI TOMITA-YOKOTANI ◽  
TOSHISADA SUZUKI ◽  
SEIJI KOSEMURA ◽  
HIROAKI HIRATA ◽  
...  
Keyword(s):  
Pinus Densiflora ◽  
Red Pine ◽  
Pine Tree ◽  
Japanese Red Pine

Effects of canopy N uptake on foliar CO2 assimilation rates and biomass production and allocation in Japanese red pine seedlings

2012 ◽  
Vol 42 (7) ◽  
pp. 1395-1403 ◽  
Author(s):  
Masaaki Chiwa ◽  
Toshihide Matsuda ◽  
Nobutake Nakatani ◽  
Tsuyoshi Kobayashi ◽  
Atsushi Kume ◽  
...  
Keyword(s):  
Root Biomass ◽  
Pinus Densiflora ◽  
N Uptake ◽  
C Sequestration ◽  
Red Pine ◽  
N Availability ◽  
Atmospheric N Deposition ◽  
Japanese Red Pine ◽  
Pine Seedlings ◽  
Psii Photochemistry

To investigate the direct physiological effects of CNU (canopy nitrogen uptake), three mist solutions (control, N1, and N2 with 0.03, 13.1, and 32.7 kg NH4+-N·ha–1, respectively) were sprayed on Japanese red pine (Pinus densiflora Sieb. et Zucc.) seedlings three times a week for three months. Waterproof sheets protected the surface soil during misting to avoid adding N to the soil. The results show N mist treatments to foliage increased needle N availability in proportion to N dose, which was large enough to cause greater N and chlorophyll content in the needles. This suggests that N is rapidly absorbed, is directly assimilated by the needles, and is used in photosynthesis. These increases resulted in higher maximum net CO2 assimilation rates (Amax) and maximum quantum yield of PSII photochemistry (Fv/Fm) of pine seedlings and subsequently increased bud and root biomass. Increased root biomass reduced the sensitivity of the shoot-to-root ratio to increased N availability in the foliage. In conclusion, our study supported the idea that CNU should be taken into consideration when evaluating the impacts of elevated atmospheric N deposition on forest C sequestration and biomass allocation.

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