Results 21 to 30 of about 43,296 (258)

Fire intensity impacts on post-fire temperate coniferous forest net primary productivity [PDF]

open access: yesBiogeosciences, 2018
Fire is a dynamic ecological process in forests and impacts the carbon (C) cycle through direct combustion emissions, tree mortality, and by impairing the ability of surviving trees to sequester carbon.
A. M. Sparks   +5 more
doaj   +1 more source

Quantitative Assessment of Factors Influencing the Spatiotemporal Variation in Carbon Dioxide Fluxes Simulated by Multi-Source Remote Sensing Data in Tropical Vegetation

open access: yesRemote Sensing, 2023
Vegetation plays a vital role in the global carbon cycle, a function of particular significance in regulating carbon dioxide fluxes within tropical ecosystems.
Ruize Xu   +4 more
doaj   +1 more source

A global analysis of the impact of drought on net primary productivity [PDF]

open access: yesHydrology and Earth System Sciences, 2013
Abstract. We investigated the impact of drought on interannual variability of net primary productivity (NPP) from 1997 to 2009, using the standardized precipitation evapotranspiration index (SPEI) drought index and satellite-derived vegetation greenness converted to NPP. SPEI is positive for wet conditions and negative for dry conditions. We found that
Chen, T.   +4 more
openaire   +5 more sources

Variations of Terrestrial Net Primary Productivity in East Asia

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2012
Due to the heterogeneity and complexity of terrestrial ecosystems of East Asia, a better understanding of relationships between climate change and net primary productivity (NPP) distribution is important to predict future carbon dynamics.
Fangmin Zhang   +5 more
doaj   +1 more source

Community level offset of rain use- and transpiration efficiency for a heavily grazed ecosystem in inner Mongolia grassland.

open access: yesPLoS ONE, 2013
Water use efficiency (WUE) is a key indicator to assess ecosystem adaptation to water stress. Rain use efficiency (RUE) is usually used as a proxy for WUE due to lack of transpiration data.
Ying Z Gao   +5 more
doaj   +1 more source

Future supply and demand of net primary production in the Sahel [PDF]

open access: yesEarth System Dynamics, 2016
Abstract. In the 21st century, climate change in combination with increasing demand, mainly from population growth, will exert greater pressure on the ecosystems of the Sahel to supply food and feed resources. The balance between supply and demand (annual biomass required for human consumption) serves as a key metric for quantifying basic resource ...
Florian Sallaba   +7 more
openaire   +3 more sources

Dynamics of Vegetation Net Primary Productivity and Its Response to Drought in the Mongolian Plateau

open access: yesAtmosphere, 2021
Vegetation net primary productivity (NPP) is an important aspect of the global carbon cycle, and its change is closely related to climate change. This study analyzed the spatial-temporal variation of the standardized precipitation evapotranspiration ...
Xiaomeng Guo   +4 more
doaj   +1 more source

Maps measure net primary production [PDF]

open access: yesEos, Transactions American Geophysical Union, 2003
New maps of Earth's net primary production are the first consistent and continuous global measurements of the rate that plant life absorbs carbon from the atmosphere, NASA announced on 23 April.The maps incorporate measurements of plant properties collected by the Moderate Resolution Imaging Spectroradiometer, or MODIS, with other satellite‐ and ...
openaire   +1 more source

Global patterns in human consumption of net primary production [PDF]

open access: yesNature, 2004
The human population and its consumption profoundly affect the Earth's ecosystems. A particularly compelling measure of humanity's cumulative impact is the fraction of the planet's net primary production that we appropriate for our own use. Net primary production--the net amount of solar energy converted to plant organic matter through photosynthesis ...
Imhoff, Marc L.   +5 more
openaire   +3 more sources

Product level dataset on embodied human appropriation of net primary production

open access: yesData in Brief, 2023
This dataset includes data on the embodied human appropriation of net primary production (eHANPP) associated with products derived from agriculture and forestry. The human appropriation of net primary production (HANPP) is an indicator of changes in the yearly availability of biomass energy from photosynthesis that remains available in terrestrial ...
Roux, Nicolas   +6 more
openaire   +4 more sources

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