Carbon Profile of the Managed Forest Sector in Canada in the 20th Century: Sink or Source?

2014 ◽  
Vol 48 (16) ◽  
pp. 9859-9866 ◽  
Author(s):  
Jiaxin Chen ◽  
Stephen J. Colombo ◽  
Michael T. Ter-Mikaelian ◽  
Linda S. Heath
Keyword(s):  
20Th Century ◽  
Forest Sector ◽  
Managed Forest ◽  
Carbon Profile

scholarly journals Uncertainty of inventory-based estimates of the carbon dynamics of Canada’s managed forest (1990–2014)

2017 ◽  
Vol 47 (8) ◽  
pp. 1082-1094 ◽  
Author(s):  
J.M. Metsaranta ◽  
C.H. Shaw ◽  
W.A. Kurz ◽  
C. Boisvenue ◽  
S. Morken
Keyword(s):  
Reporting System ◽  
Ghg Emissions ◽  
Ecosystem Model ◽  
Forest Sector ◽  
Managed Forest ◽  
Model Soil ◽  
Carbon Budget Model ◽  
C Dynamics ◽  
C Stock ◽  
International Climate

Canada’s National Forest Carbon Monitoring Accounting and Reporting System (NFCMARS) quantifies the carbon (C) dynamics and greenhouse gas (GHG) emissions and removals of Canada’s managed forest to fulfill reporting obligations under international climate conventions. Countries are also requested to assess the uncertainty associated with these estimates, which we report here. We used Monte Carlo simulation to quantify uncertainty of carbon stock and flux estimates from the Carbon Budget Model of the Canadian Forest Sector (CBM-CFS3), the core ecosystem model of the NFCMARS. We evaluated the impacts of model algorithms, parameters, and the input data used to describe forest characteristics and disturbance rates. Under our assumptions, 95% confidence interval widths averaged 16.2 Pg C (+8.3 and –7.9 Pg C, or ±15%) for total ecosystem C stock and 32.2 Tg C·year−1 (+16.6 and –15.6 Tg C·year−1) for net biome production relative to an overall simulation median of –0.8 Tg C·year−1 from 1990 to 2014. The largest sources of uncertainty were related to factors determining biomass increment and the parameters used to model soil and dead organic matter C dynamics. Opportunities to reduce uncertainty and associated research challenges were identified.

Conceptual Developments of 20th Century Field Theories

1997 ◽  
Author(s):  
Tian Yu Cao
Keyword(s):  
20Th Century ◽  
Field Theories

Radicalism and Education Reform in 20th-Century China

1996 ◽  
Author(s):  
Suzanne Pepper
Keyword(s):  
Education Reform ◽  
20Th Century

Development of Reading Remediation for Dyslexic Individuals

2016 ◽  
Vol 224 (4) ◽  
pp. 240-246 ◽  
Author(s):  
Mélanie Bédard ◽  
Line Laplante ◽  
Julien Mercier
Keyword(s):  
20Th Century ◽  
Scientific Literature ◽  
Behavioral Data ◽  
Educational Neuroscience ◽  
Reading Remediation ◽  
Functional Brain ◽  
Neurophysiological Data ◽  
Brain Correlates ◽  
Research Questions ◽  
The Brain

Abstract. Dyslexia is a phenomenon for which the brain correlates have been studied since the beginning of the 20th century. Simultaneously, the field of education has also been studying dyslexia and its remediation, mainly through behavioral data. The last two decades have seen a growing interest in integrating neuroscience and education. This article provides a quick overview of pertinent scientific literature involving neurophysiological data on functional brain differences in dyslexia and discusses their very limited influence on the development of reading remediation for dyslexic individuals. Nevertheless, it appears that if certain conditions are met – related to the key elements of educational neuroscience and to the nature of the research questions – conceivable benefits can be expected from the integration of neurophysiological data with educational research. When neurophysiological data can be employed to overcome the limits of using behavioral data alone, researchers can both unravel phenomenon otherwise impossible to document and raise new questions.

Was high grouse bag in early 20th century Norway due to a program for extermination of small game predators?

Ecography ◽  
2001 ◽  
Vol 24 (5) ◽  
pp. 579-587 ◽  
Author(s):  
Christian A. Smedshaug
Keyword(s):  
20Th Century ◽  
Early 20Th Century ◽  
Small Game

Updating Our Knowledge of Reasoning in the 20th Century

1994 ◽  
Vol 39 (7) ◽  
pp. 764-765
Author(s):  
William E. Deuser ◽  
Craig A. Anderson
Keyword(s):  
20Th Century

The 20th Century as an Aberration in the History of Psychology

1994 ◽  
Vol 39 (1) ◽  
pp. 9-11 ◽  
Author(s):  
Harry C. Triandis
Keyword(s):  
20Th Century ◽  
History Of Psychology ◽  
History Of
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