Zobrazeno 1 - 10
of 97
pro vyhledávání: '"M. G. R. Cannell"'
Publikováno v:
Water, Air, & Soil Pollution: Focus. 4:67-74
Estimates of the global carbon sink induced by nitrogen enrichment range vary widely, from nearly zero to 2.3 Gt C year-1. It is necessary to reduce this uncertainty if we are to make accurate predictions of the future magnitude of the terrestrial ca
Autor:
M. G. R. Cannell, J. H. M. Thornley
Publikováno v:
Tree Physiology. 24:765-773
Climate change is predicted to shorten the fire interval in boreal forests. Many studies have recorded positive effects of fire on forest growth over a few decades, but few have modeled the long-term effects of the loss of carbon and nitrogen to the
Autor:
M. G. R. Cannell, J. H. M. Thornley
Publikováno v:
Plant and Soil. 257:193-204
Long runs of a mechanistic model of forest carbon (C) and nitrogen (N) dynamics (Edinburgh Forest Model) suggest that, when in a steady state, ecosystem productivity may be insensitive to the specific rate of N mineralization of soil organic matter (
Publikováno v:
Forestry. 76:299-317
Summary The annual net CO2 exchange over undisturbed deep peatland in Scotland was measured continuously for 22 months using eddy covariance. Annual CO2 exchanges over peatlands that had been drained, ploughed and afforested with conifers 1, 2, 3, 4,
Autor:
M. G. R. Cannell, J. H. M. Thornley
Publikováno v:
Annals of Botany. 87:591-598
Recently, global and some regional observations of soil carbon stocks and turnover times have implied that warming may not deplete soil carbon as much as predicted by ecosystem models. The proposed explanation is that microbial respiration of carbon
Autor:
M. G. R. Cannell, Steven P. Hamburg, Stephen P. Prisley, Bernhard Schlamadinger, T.P. Singh, Werner A. Kurz, Ernst Detlef Schulze, Timo Karjalainen, Miko U. F. Kirschbaum
Publikováno v:
Environmental Science & Policy. 4:73-85
The Kyoto Protocol aims to reduce net emissions of greenhouse gases to the atmosphere by various measures including through management of the biosphere. However, the wording that has been adopted may be difficult and costly to implement, and may ulti
Autor:
J. H. M. Thornley, M. G. R. Cannell
Publikováno v:
Annals of Botany. 86:1161-1167
Terrestrial ecosystems are considered to be in only two possible states: N unsaturated or N saturated. This view lacks rigour and has led to three differing concepts of N saturation: (1) a continuum of changes in N states and processes; (2) a thresho
Autor:
J. H. M. Thornley, M. G. R. Cannell
Publikováno v:
Tree Physiology. 20:477-484
Which forest management regimes best achieve the dual objectives of high sustained timber yield and high carbon storage, including the carbon stored in soil and wood products? A mechanistic forest ecosystem simulator, which couples carbon, nitrogen a
Autor:
Mike Hulme, D. Waughray, Jean Palutikof, John E. Thornes, S. Subak, S. McNally, Simon J. Watson, M. G. R. Cannell, Maureen D. Agnew, J. C. Woods, C. G. Bentham
Publikováno v:
Climatic Change. 44:1-26
This study assesses selected impacts on tertiary activities of the anomalously hot summer of 1995 and warm period from November 1994 through October 1995 in the U.K. Over this period, the mean Central England temperature was 1.6 °C above the 1961–
Autor:
M. G. R. Cannell, J. H. M. Thornley
Publikováno v:
Annals of Botany. 85:55-67
This paper outlines the different ways in which plant respiration is modelled, with reference to the principles set out in Cannell and Thornley (Annals of Botany85: 55–67, 2000), first in whole-plant ‘toy’ models, then within ecosystem or crop