Sentences with phrase «net primary productivity»

We offer preliminary estimates of the lands unlikely to support new waves of climate refugees due to the residues of war, exhausted natural resources, declining net primary productivity, desertification, urban sprawl, land concentration, «paving the planet» with roads and greenhouse gas storage zones offsetting permafrost melt,» Geisler said.

Briffa: Also there is much published evidence for Europe (and France in particular) of increasing net primary productivity in natural and managed woodlands that may be associated either with nitrogen or increasing CO2 or both.

The simulations suggested that the indirect effects of increased CO2 on net primary productivity (how much carbon dioxide vegetation takes in during photosynthesis minus how much carbon dioxide the plants release during respiration) are large and variable, ranging from less than 10 per cent to more than 100 per cent of the size of direct effects.

Warming to 31 °C reduced holobiont net primary productivity (NPP) by 60 % due to increased respiration which decreased host % carbon by 15 % with no apparent cost to the symbiont.

sensitivity the degree to which a system will respond to a change in climatic conditions (e.g., the extent of change in ecosystem composition, structure and functioning, including net primary productivity, resulting from a given change in temperature or precipitation)

Yet, despite each of these factors, and every other possible negative influence that has occurred over the past half century, terrestrial net primary productivity has increased by 21.5 percent!

We find, when all seven models are considered for one representative concentration pathway × general circulation model combination, such uncertainties explain 30 % more variation in modeled vegetation carbon change than responses of net primary productivity alone, increasing to 151 % for non-HYBRID4 models.

Interactions between carbon and nitrogen dynamics in estimating net primary productivity for potential vegetation in North America.

Global net primary productivity (NPP) increased by roughly 6 % over this period, with large increases of NPP in some tropical ecosystems.

Our ability to understand and predict changes in the forest carbon cycle — particularly net primary productivity and carbon storage — increasingly relies on models that represent biological processes across several scales of biological organization, from tree leaves to forest stands2, 3.

«We offer preliminary estimates of the lands unlikely to support new waves of climate refugees due to the residues of war, exhausted natural resources, declining net primary productivity, desertification, urban sprawl, land concentration, «paving the planet» with roads, and greenhouse gas storage zones offsetting permafrost melt.»

This study looked at the responses of net ecosystem production (NEP), simulated by six DGVMs, to one climate and CO2 change scenario, concluding that the major source of uncertainty in future NEP is the response of net primary productivity (NPP) to changing climate.

(A) Net primary productivity in grams of carbon per square meter per year from 2001 to 2006 and (B) annual average number of fires observed by satellite.

Net primary productivity has also indirect effects on population density mediated by biodiversity and pathogens.

In climate change scenarios simulated by the model GOTILWA + — within the Consolider - Ingenio project Montes and the research project Med - Forestream — , net primary productivity of Spanish forests (how much carbon dioxide plants take in during photosynthesis minus how much carbon dioxide they release during respiration) will decrease from the second half of this century.

«I've not checked the 450 number but «over 100 ″ is obviously not the difference.I assume it's supposed to be net primary productivity...»

They determined that «net primary productivity» improved by an average of 27 % during this 112 - year period, with most of the increased growth occurring after 1950, when CO2 levels rose the most, from 310 ppm in 1950 to 395 ppm in 2007.

Change in net primary productivity (plant growth) projections from CMIP5 (Coupled Model Intercomparison Project Phase 5) models, under a high emissions scenario (RCP8.5).