Results 31 to 40 of about 6,310 (207)

Driving Climatic Factors at Critical Plant Developmental Stages for Qinghai–Tibet Plateau Alpine Grassland Productivity

open access: yesRemote Sensing, 2022
Determining the driving climatic factors at critical periods and potential legacy effects is crucial for grassland productivity predictions on the Qinghai–Tibet Plateau (QTP).
Dechao Zhai   +9 more
doaj   +1 more source

Large lianas as hyperdynamic elements of the tropical forest canopy [PDF]

open access: yes, 2005
Lianas (woody vines) are an important component of lowland tropical forests. We report large liana and tree inventory and dynamics data from Amazonia over periods of up to 24 years, making this the longest geographically extensive study of liana ...
Baker, T.R.   +4 more
core   +1 more source

An increase in livestock density increases forage nutritional value but decreases net primary production and annual forage nutritional yield in the alpine grassland of the Qinghai-Tibetan Plateau

open access: yesFrontiers in Plant Science, 2022
Pasture biomass and quality are dependent on herbivore grazing and precipitation, but the responses of vegetation to the interactive effects of climate and grazing regimes remain unclear.
Xixi Yao   +5 more
doaj   +1 more source

Space-time quantification of aboveground net primary productivity service supply capacity in high Andean bofedales using remote sensors [PDF]

open access: yesJournal of Water and Land Development, 2023
The aboveground net primary productivity ( ANPP) of bofedales is one of the most important indicators for the provision of ecosystem services in the high Andean areas. In the case of bofedales, the evaluation of the ANPP supply capacity as a service on a
Deyvis Cano   +5 more
doaj   +1 more source

Global evidence on nitrogen saturation of terrestrial ecosystem net primary productivity

open access: yesEnvironmental Research Letters, 2016
The continually increasing nitrogen (N) deposition is expected to increase ecosystem aboveground net primary production (ANPP) until it exceeds plant N demand, causing a nonlinear response and N saturation for ANPP.
Dashuan Tian   +3 more
doaj   +1 more source

Trends of Aboveground Net Primary Productivity of Patagonian Meadows, the Omitted Ecosystem in Desertification Studies

open access: yesRemote Sensing, 2023
The United Nations defines desertification as the loss of productivity in arid and semiarid environments. The extended steppes of Patagonia harbor small meadows whose compounded area is comparatively small, but their aboveground net primary production ...
Matías Curcio   +3 more
doaj   +1 more source

Primary Productivity and Precipitation-Use Efficiency in Temperate Grassland in the Loess Plateau of China. [PDF]

open access: yesPLoS ONE, 2015
Clarifying spatial variations in aboveground net primary productivity (ANPP) and precipitation-use efficiency (PUE) of grasslands is critical for effective prediction of the response of terrestrial ecosystem carbon and water cycle to future climate ...
Xiaoxu Jia   +3 more
doaj   +1 more source

Above-ground biomass and productivity in a rain forest of eastern South America [PDF]

open access: yes, 2008
: The dynamics of tropical forest woody plants was studied at the Nouragues Field Station, central French Guiana. Stem density, basal area, above-ground biomass and above-ground net primary productivity, including the contribution of litterfall, were ...
Bongers, F.J.J.M.   +8 more
core   +3 more sources

Charge Independence and Charge Symmetry [PDF]

open access: yes, 1994
Charge independence and charge symmetry are approximate symmetries of nature, violated by the perturbing effects of the mass difference between up and down quarks and by electromagnetic interactions.
Miller, Gerald A.   +1 more
core   +2 more sources

Assessing vegetation structure and ANPP dynamics in a grassland–shrubland Chihuahuan ecotone using NDVI–rainfall relationships [PDF]

open access: yesBiogeosciences, 2015
Abstract. Climate change and the widespread alteration of natural habitats are major drivers of vegetation change in drylands. In the Chihuahuan Desert, large areas of grasslands dominated by perennial grass species have transitioned over the last 150 years to shrublands dominated by woody species, accompanied by accelerated water and wind erosion ...
M. Moreno-de las Heras   +3 more
openaire   +7 more sources

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