Results 31 to 40 of about 189,130 (302)

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

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

Forest ecosystem changes from annual methane source to sink depending on late summer water balance [PDF]

open access: yes, 2014
Forests dominate the global carbon cycle, but their role in methane (CH4) biogeochemistry remains uncertain. We analyzed whole-ecosystem CH4 fluxes from 2 years, obtained over a lowland evergreen forest in Maine, USA.
Hollinger, David Y.   +3 more
core   +1 more source

Potential net primary productivity in South America: application of a global model [PDF]

open access: yes, 1991
We use a mechanistically based ecosystem simulation model to describe and analyze the spatial and temporal patterns of terrestrial net primary productivity (NPP) in South America.
Kicklighter, David W.   +8 more
core   +2 more sources

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

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

Upscaling key ecosystem functions across the conterminous United States by a water-centric ecosystem model [PDF]

open access: yes, 2011
We developed a water-centric monthly scale simulation model (WaSSI-C) by integrating empirical water and carbon flux measurements from the FLUXNET network and an existing water supply and demand accounting model (WaSSI).
Caldwell, Peter   +11 more
core   +4 more sources

Evaluation of agricultural ecosystem services in fallowing land based on farmers' participation and model simulation [PDF]

open access: yes, 2012
Fallowing with green fertilizer can benefit agricultural ecosystem services (AES). Farmers in Taiwan do not implement fallow practices and plant green fertilizer because the current subsidy level (46,000 NT$ per ha) is too low to manage fallowing.
Chang Kang-tsung   +4 more
core   +2 more sources

Research Advances in Net Primary Productivity of Terrestrial Ecosystem

open access: yesJournal of Geoscience and Environment Protection, 2020
The net primary productivity of vegetation reflects the total amount of carbon fixed by plants through photosynthesis each year. The study of vegetation net primary productivity is one of the core contents of global change and terrestrial ecosystems. This article reviews the current research status of net primary productivity of terrestrial vegetation,
Yixin Xu   +3 more
openaire   +2 more sources

Coinciding spring and autumn frosts have a limited impact on carbon fluxes in a grassland ecosystem

open access: yesNature Communications
Frosts, increasingly prevalent due to climate warming, can offset the carbon storage benefits of an extended growing season, potentially exacerbating climate warming.
Juanjuan Han   +5 more
doaj   +1 more source

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