Results 31 to 40 of about 190,575 (297)

Equilibration of the terrestrial water, nitrogen, and carbon cycles [PDF]

open access: yes, 1997
Recent advances in biologically based ecosystem models of the coupled terrestrial, hydrological, carbon, and nutrient cycles have provided new perspectives on the terrestrial biosphere’s behavior globally, over a range of time scales.
Braswell, Rob   +2 more
core   +2 more sources

Generalization and evaluation of the process-based forest ecosystem model PnET-CN for other biomes [PDF]

open access: yes, 2015
Terrestrial ecosystems play an important role in carbon, water, and nitrogen cycling. Process-based ecosystem models, including PnET-CN, have been widely used to simulate ecosystem processes during the last two decades.
Ollinger, Scott V.   +2 more
core   +2 more sources

Assessing the comparative productivity advantage of bioenergy feedstocks at different latitudes

open access: yesEnvironmental Research Letters, 2012
We evaluate the comparative productivity of maize and sugarcane biofuel feedstocks as a function of latitude. Solar radiation for photosynthesis varies by latitude and contributes to differential productivity of tropical and temperate zones. We calculate
Carlisle Ford Runge   +7 more
doaj   +1 more source

Ecohydrological Controls on Grass and Shrub Above-ground Net Primary Productivity in a Seasonally Dry Climate [PDF]

open access: yes, 2015
Seasonally dry, water‐limited regions are often co‐dominated by distinct herbaceous and woody plant communities with contrasting ecohydrological properties.
Bras, Rafael L.   +2 more
core   +2 more sources

Seasonal differences in the CO2 exchange of a short-hydroperiod Florida Everglades marsh [PDF]

open access: yes, 2010
Although wetlands are among the world\u27s most productive ecosystems, little is known of long-term CO2 exchange in tropical and subtropical wetlands. The Everglades is a highly managed wetlands complex occupying \u3e6000 km2 in south Florida.
Jimenez, Kristine L.   +3 more
core   +1 more source

Influence of Spring and Autumn Phenological Transitions on Forest Ecosystem Productivity [PDF]

open access: yes, 2010
We use eddy covariance measurements of net ecosystem productivity (NEP) from 21 FLUXNET sites (153 site-years of data) to investigate relationships between phenology and productivity (in terms of both NEP and gross ecosystem photosynthesis, GEP) in ...
ANDY BLACK T.   +20 more
core   +1 more source

Land use cover changes abated terrestrial ecosystem carbon sink in China during the past four decades

open access: yesAll Earth
Changes in land use and cover can strongly affect terrestrial carbon balance, which in turn can affect the calculation of carbon sinks that will keep future temperature within desired limits.
Xueqing Jiang   +6 more
doaj   +1 more source

NPP and Vegetation Carbon Sink Capacity Estimation of Urban Green Space Using the Optimized CASA Model: A Case Study of Five Chinese Cities

open access: yesAtmosphere, 2023
Urban area is a major source of CO2 and other greenhouse gases. Urban green space (UGS) is an essential element to increase carbon sequestration directly and reduce emission indirectly.
Fang Xu, Xiangrong Wang, Liang Li
doaj   +1 more source

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

open access: yes, 1992
We use the terrestrial ecosystem model (TEM), a process-based model, to investigate how interactions between carbon (C) and nitrogen (N) dynamics affect predictions of net primary productivity (NPP) for potential vegetation in North America. Data on pool
Joyce, L. A.   +6 more
core   +2 more sources

The 2010 spring drought reduced primary productivity in southwestern China [PDF]

open access: yes, 2012
Many parts of the world experience frequent and severe droughts. Summer drought can significantly reduce primary productivity and carbon sequestration capacity. The impacts of spring droughts, however, have received much less attention.
Guo, Huadong   +5 more
core   +3 more sources

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