Results 31 to 40 of about 19,149 (228)

Improvement of Ecological Footprint Model in National Nature Reserve Based on Net Primary Production (NPP) [PDF]

open access: yesSustainability, 2018
An increasing number of nature reserves are being invaded by various development and construction activities, such as energy, resources, and transportation facilities. The ecological footprint model, which enables a quantitative assessment of ecological sustainability, can assess whether human consumption at various spatial scales falls within the ...
Xiaoman Liu   +7 more
openaire   +1 more source

Water use efficiency of China\u27s terrestrial ecosystems and responses to drought [PDF]

open access: yes, 2015
Water use efficiency (WUE) measures the trade-off between carbon gain and water loss of terrestrial ecosystems, and better understanding its dynamics and controlling factors is essential for predicting ecosystem responses to climate change.
Ju, Weimin   +5 more
core   +2 more sources

Modeling carbon uptake by vegetation of grassland ecosystems and its associated factors in China based on remote sensing

open access: yesFrontiers in Earth Science, 2023
In order to reveal the spatial variation characteristics and influencing factors of grassland net primary productivity (NPP) in China, this paper uses remote sensing data, land use data and meteorological data to simulate and estimate China’s grassland ...
Xuejie Li, Ruren Li, Zongyao Sha
doaj   +1 more source

Seasonally and spatially varied controls of climatic factors on net primary productivity in alpine grasslands on the Tibetan Plateau

open access: yesGlobal Ecology and Conservation, 2020
Vegetation net primary productivity (NPP) is a core parameter regulating carbon cycles of terrestrial ecosystem, which also has close relations with climates.
Zhoutao Zheng   +2 more
doaj   +1 more source

Estimating ocean net primary productivity from daily cycles of carbon biomass measured by profiling floats

open access: yesLimnology and Oceanography Letters, 2023
The dependence of net primary productivity (NPP), a central metric in ecology and biogeochemistry, on sunlight drives daily cycles in carbon biomass in the ocean's euphotic zone. In this study, we infer NPP from the daily cycle of biomass.
Adam C. Stoer, Katja Fennel
doaj   +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

Comparing global models of terrestrial net primary productivity (NPP): analysis of the seasonal atmospheric CO2 signal [PDF]

open access: yesGlobal Change Biology, 1999
SummaryEight terrestrial biospheric models (TBMs) calculating the monthly distributions of both net primary productivity (NPP) and soil heterotrophic respiration (RH) in the Potsdam NPP Model Intercomparison workshop are used to simulate seasonal patterns of atmospheric CO2 concentration.
Nemry, B.   +5 more
openaire   +1 more source

Asymmetric responses of primary productivity to altered precipitation simulated by ecosystem models across three long-term grassland sites [PDF]

open access: yesBiogeosciences, 2018
Field measurements of aboveground net primary productivity (ANPP) in temperate grasslands suggest that both positive and negative asymmetric responses to changes in precipitation (P) may occur.
D. Wu   +45 more
doaj   +1 more source

Estimation of Global Vegetation Productivity from Global LAnd Surface Satellite Data

open access: yesRemote Sensing, 2018
Accurately estimating vegetation productivity is important in research on terrestrial ecosystems, carbon cycles and climate change. Eight-day gross primary production (GPP) and annual net primary production (NPP) are contained in MODerate Resolution ...
Tao Yu   +6 more
doaj   +1 more source

Tree-ring isotopes capture interannual vegetation productivity dynamics at the biome scale

open access: yesNature Communications, 2019
Historical and future trends in net primary productivity (NPP) and its sensitivity to global change are largely unknown because of the lack of long-term, high-resolution data.
Mathieu Levesque   +6 more
doaj   +1 more source

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