scholarly journals Reply to 'Uncertain effects of nutrient availability on global forest carbon balance' and 'Data quality and the role of nutrients in forest carbon-use efficiency'

2015 ◽  
Vol 5 (11) ◽  
pp. 960-961 ◽  
Author(s):  
M. Fernández-Martínez ◽  
S. Vicca ◽  
I. A. Janssens ◽  
J. Sardans ◽  
S. Luyssaert ◽  
...  
Keyword(s):  
Data Quality ◽  
Nutrient Availability ◽  
Carbon Balance ◽  
Forest Carbon ◽  
Carbon Use Efficiency ◽  
Use Efficiency

Data quality and the role of nutrients in forest carbon-use efficiency

2015 ◽  
Vol 5 (11) ◽  
pp. 959-960 ◽  
Author(s):  
Werner L. Kutsch ◽  
Pasi Kolari
Keyword(s):  
Data Quality ◽  
Forest Carbon ◽  
Carbon Use Efficiency ◽  
Use Efficiency

scholarly journals The effect of nutrient availability on global forest carbon balance is uncertain

2014 ◽  
Author(s):  
Enzai Du
Keyword(s):  
Nutrient Availability ◽  
Carbon Balance ◽  
Gross Primary Production ◽  
Sampling Effect ◽  
Significant Control ◽  
Carbon Use Efficiency ◽  
Ecosystem Carbon ◽  
Ecosystem Production ◽  
Use Efficiency ◽  
Uneven Sampling

To the Editor ? Fern?ndez-Mart?nez et al. 1 show a chief determinant of nutrient availability on net ecosystem production (NEP) and ecosystem carbon-use efficiency (CUEe, the ratio of NEP to gross primary production i.e. GPP) in global forests. However, their conclusions depend on an improper treatment of differences in the GPP range of nutrient-rich and nutrient-poor forests (uneven sampling effect) and outliers. A statistical re-analysis of their datasets, while simultaneously excluding the uneven sampling effect and outliers, indicates no significant control of nutrient availability on carbon (C) balance.

scholarly journals Addendum: Nutrient availability as the key regulator of global forest carbon balance

2014 ◽  
Vol 4 (7) ◽  
pp. 643-643 ◽  
Author(s):  
M. Fernández-Martínez ◽  
S. Vicca ◽  
I. A. Janssens ◽  
J. Sardans ◽  
S. Luyssaert ◽  
...  
Keyword(s):  
Nutrient Availability ◽  
Carbon Balance ◽  
Forest Carbon

scholarly journals The role of alternative oxidase in modulating carbon use efficiency and growth during macronutrient stress in tobacco cells

2005 ◽  
Vol 56 (416) ◽  
pp. 1499-1515 ◽  
Author(s):  
Stephen M. Sieger ◽  
Brian K. Kristensen ◽  
Christine A. Robson ◽  
Sasan Amirsadeghi ◽  
Edward W. Y. Eng ◽  
...  
Keyword(s):  
Alternative Oxidase ◽  
Tobacco Cells ◽  
Carbon Use Efficiency ◽  
Use Efficiency

scholarly journals Forest carbon use efficiency: is respiration a constant fraction of gross primary production?

2007 ◽  
Vol 13 (6) ◽  
pp. 1157-1167 ◽  
Author(s):  
EVAN H. DeLUCIA ◽  
JOHN E. DRAKE ◽  
RICHARD B. THOMAS ◽  
MIQUEL GONZALEZ-MELER
Keyword(s):  
Primary Production ◽  
Gross Primary Production ◽  
Forest Carbon ◽  
Carbon Use Efficiency ◽  
Use Efficiency

scholarly journals Growth Respiration, Maintenance Respiration, and Carbon Fixation of Vinca: A Time Series Analysis

2000 ◽  
Vol 125 (6) ◽  
pp. 702-706 ◽  
Author(s):  
Marc W. van Iersel ◽  
Lynne Seymour
Keyword(s):  
Carbon Balance ◽  
Carbon Fixation ◽  
Plant Size ◽  
Carbon Gain ◽  
Maintenance Respiration ◽  
Carbon Use Efficiency ◽  
Size Growth ◽  
Growth Respiration ◽  
Use Efficiency ◽  
Traditional Approaches

Respiration is important in the overall carbon balance of plants, and can be separated into growth (Rg) and maintenance respiration (Rm). Estimation of Rg and Rm throughout plant development is difficult with traditional approaches. Here, we describe a new method to determine ontogenic changes in Rg and Rm. The CO2 exchange rate of groups of 28 `Cooler Peppermint' vinca plants [Catharanthus roseus (L.) G. Don.] was measured at 20 min intervals for 2 weeks. These data were used to calculate daily carbon gain (DCG, a measure of growth rate) and cumulative carbon gain (CCG, a measure of plant size). Growth and maintenance respiration were estimated based on the assumption that they are functions of DCG and CCG, respectively. Results suggested a linear relationship between DCG and Rg. Initially, Rm was three times larger than Rg, but they were similar at the end of the experiment. The decrease in the fraction of total available carbohydrates that was used for Rm resulted in an increase in carbon use efficiency from 0.51 to 0.67 mol·mol-1 during the 2-week period. The glucose requirement of the plants was determined from Rg, DCG, and the carbon fraction of the plant material and estimated to be 1.39 g·g-1, while the maintenance coefficient was estimated to be 0.031 g·g-1·d-1 at the end of the experiment. These results are similar to values reported previously for other species. This suggests that the use of semicontinuous CO2 exchange measurements for estimating Rg and Rm yields reasonable results.

Understanding the controls over forest carbon use efficiency on small spatial scales: Effects of forest disturbance and tree diversity

2019 ◽  
Vol 269-270 ◽  
pp. 136-144 ◽  
Author(s):  
Norbert Kunert ◽  
Tarek S. El-Madany ◽  
Luiza Maria T. Aparecido ◽  
Sebastian Wolf ◽  
Catherine Potvin
Keyword(s):  
Forest Disturbance ◽  
Spatial Scales ◽  
Tree Diversity ◽  
Forest Carbon ◽  
Carbon Use Efficiency ◽  
Use Efficiency

scholarly journals Nutrient availability as the key regulator of global forest carbon balance

2014 ◽  
Vol 4 (6) ◽  
pp. 471-476 ◽  
Author(s):  
M. Fernández-Martínez ◽  
S. Vicca ◽  
I. A. Janssens ◽  
J. Sardans ◽  
S. Luyssaert ◽  
...  
Keyword(s):  
Nutrient Availability ◽  
Carbon Balance ◽  
Forest Carbon
Sign in / Sign up

Export Citation Format

Share Document