Fine Root Production Estimates and Belowground Carbon Allocation in Forest Ecosystems

Ecology ◽  
1992 ◽  
Vol 73 (4) ◽  
pp. 1139-1147 ◽  
Author(s):  
Knute J. Nadelhoffer ◽  
James W. Raich
Keyword(s):  
Forest Ecosystems ◽  
Fine Root ◽  
Carbon Allocation ◽  
Root Production ◽  
Fine Root Production ◽  
Belowground Carbon Allocation ◽  
Belowground Carbon

Applicability of the net sheet method for estimating fine root production in forest ecosystems

Trees ◽  
2015 ◽  
Vol 30 (2) ◽  
pp. 571-578 ◽  
Author(s):  
Mizue Ohashi ◽  
Aiko Nakano ◽  
Yasuhiro Hirano ◽  
Kyotaro Noguchi ◽  
Hidetoshi Ikeno ◽  
...  
Keyword(s):  
Forest Ecosystems ◽  
Fine Root ◽  
Root Production ◽  
Fine Root Production

scholarly journals Effects of understory removal on root production, turnover and total belowground carbon allocation in Moso bamboo forests

2016 ◽  
Vol 9 (2) ◽  
pp. 187-194 ◽  
Author(s):  
X Tang ◽  
S Fan ◽  
L Qi ◽  
F Guan ◽  
G Liu ◽  
...  
Keyword(s):  
Carbon Allocation ◽  
Moso Bamboo ◽  
Root Production ◽  
Belowground Carbon Allocation ◽  
Belowground Carbon ◽  
Total Belowground Carbon Allocation

Fine root production along a 40-year chronosequence of restored mangroves in Vietnam

2020 ◽  
Author(s):  
Marie Arnaud ◽  
Paul J. Morris ◽  
Andy J. Baird ◽  
Thuong Huyen Dang ◽  
Tai Tue Nguyen
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Fine Root ◽  
Soil Depth ◽  
Vertical Gradient ◽  
Carbon Dynamics ◽  
Root Production ◽  
Fine Root Production ◽  
Belowground Carbon ◽  
Belowground Carbon Dynamics

<p>Mangroves are hotspots of carbon sequestration, providing ecosystem services worth US$194 000 per hectare per year. In response to widespread mangrove losses, reforestation projects have been promoted. Monitoring and assessment of those projects have mainly focused on aboveground carbon stocks, but most of the carbon is found underground (as soil carbon and roots) and little is known about belowground carbon dynamics in mangroves. In particular, it is unknown how fine root production develops during the period following reforestation. A better understanding of fine root production is important, since fine root production is a major driver of soil organic matter accumulation, which allows mangroves to occupy vertical accommodation space to withstand sea-level rise. Using minirhizotrons, we characterised the variation of fine root production along a chronosequence of mangroves in the Mekong Delta in Vietnam replanted in 1978, 1986 and 1991. We found that fine root production declines with: i) mangrove age, as a result of the self-thinning processes associated with mangrove ageing; and ii) soil depth, likely due to a vertical gradient in soil nutrient availability. Our findings have important implications for understanding belowground carbon dynamics, and highlight the need to account for mangrove age when forecasting mangrove carbon dynamics and resistance to sea-level rise.</p>

Fine root production and turnover in forest ecosystems in relation to stand and environmental characteristics

2011 ◽  
Vol 262 (11) ◽  
pp. 2008-2023 ◽  
Author(s):  
Leena Finér ◽  
Mizue Ohashi ◽  
Kyotaro Noguchi ◽  
Yasuhiro Hirano
Keyword(s):  
Forest Ecosystems ◽  
Fine Root ◽  
Root Production ◽  
Fine Root Production ◽  
Environmental Characteristics

Belowground carbon allocation of Rocky Mountain Douglas-fir

2001 ◽  
Vol 31 (8) ◽  
pp. 1425-1436 ◽  
Author(s):  
Nate G McDowell ◽  
Nick J Balster ◽  
John D Marshall
Keyword(s):  
Carbon Balance ◽  
Fine Root ◽  
Carbon Allocation ◽  
Rocky Mountain ◽  
Carbon Fluxes ◽  
Belowground Biomass ◽  
High Biomass ◽  
Belowground Carbon Allocation ◽  
Balance Approach ◽  
Belowground Carbon

Carbon allocation to fine roots and mycorrhizae constitute one of the largest carbon fluxes in forest ecosystems, but these fluxes are also among the most difficult to measure. We measured belowground carbon fluxes in two Pseudotsuga menziesii (Mirb.) Franco var. glauca stands. We used a carbon balance approach to estimate total belowground carbon allocation (TBCA) and carbon allocation to fine-root and mycorrhizal production (NPPfr). The stands differed in belowground biomass because of fertilization treatment 8 years prior. Annual soil flux was 856 and 849 g C·m–2·year–1 for the two stands. Annual root respiration equaled 269 and 333 g C·m–2·year–1 in the low- and high-biomass stand, respectively. TBCA equaled 733 and 710 g C·m–2·year–1 in the low- and high-biomass stand, respectively. Calculated NPPfr equaled 431 g C·m–2·year–1 in the low-biomass stand and 334 g C·m–2·year–1 in the high-biomass stand; equivalent to 59 and 47% of TBCA, respectively. Fine-root and mycorrhizal turnover equaled 1.8 and 0.8 year–1 in the low- and high-biomass stands, respectively. Belowground carbon allocation appeared to be distributed evenly between respiration and production despite differences in biomass and turnover. Sensitivity analysis indicated the NPPfr estimate is dependent foremost on the annual prediction of soil CO2 flux. The carbon balance approach provided a simple nonintrusive method for separating the belowground autotrophic and heterotrophic carbon budget.

scholarly journals The potential effects of nitrogen deposition on fine-root production in forest ecosystems

2000 ◽  
Vol 147 (1) ◽  
pp. 131-139 ◽  
Author(s):  
KNUTE J. NADELHOFFER
Keyword(s):  
Nitrogen Deposition ◽  
Forest Ecosystems ◽  
Fine Root ◽  
Root Production ◽  
Fine Root Production

scholarly journals A new method for placing and lifting root meshes for estimating fine root production in forest ecosystems

Plant Root ◽  
2009 ◽  
Vol 3 ◽  
pp. 26-31 ◽  
Author(s):  
Yasuhiro Hirano ◽  
Kyotaro Noguchi ◽  
Mizue Ohashi ◽  
Takuo Hishi ◽  
Naoki Makita ◽  
...  
Keyword(s):  
Forest Ecosystems ◽  
Fine Root ◽  
New Method ◽  
Root Production ◽  
Fine Root Production

Belowground Carbon Allocation in Forest Ecosystems: Global Trends

Ecology ◽  
1989 ◽  
Vol 70 (5) ◽  
pp. 1346-1354 ◽  
Author(s):  
J. W. Raich ◽  
K. J. Nadelhoffer
Keyword(s):  
Forest Ecosystems ◽  
Carbon Allocation ◽  
Global Trends ◽  
Belowground Carbon Allocation ◽  
Belowground Carbon
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