Results 31 to 40 of about 346,059 (309)

Uncertainties of gross primary productivity of Chinese grasslands based on multi-source estimation

Frontiers in Environmental Science, 2022
Gross primary productivity (GPP) is an important parameter in the carbon cycle and climate change studies. The results of GPP fluxes estimated based on multiple models or remote sensing vary widely, but current studies of GPP in Chinese grasslands tend ...
Panxing He, Xiaoliang Ma, Xiaoliang Ma, Zhiming Han, Xiaoyu Meng, Zongjiu Sun   +5 more
doaj   +1 more source

Use of remotely sensed and ancillary data for estimating forest gross primary productivity in Italy [PDF]

, 2006
The current paper describes the development and testing of a procedure which can use widely available remotely sensed and ancillary data to assess large-scale patterns of forest productivity in Italy.
Barbati, Anna, Chiesi, Marta, Chirici, Gherardo, Corona, Piermaria, Maselli, Fabio   +4 more
core   +1 more source

Improving model estimates of gross primary production [PDF]

Eos, Transactions American Geophysical Union, 2011
Balancing the global carbon budget is a daunting task complicated by the fact that even the most essential values elude direct observation. Gross primary production, the amount of carbon used by terrestrial vegetation to fuel its annual growth, is often estimated by extrapolation from observations using climate models, including the Community Land ...
openaire   +1 more source

Tropical forest temperature thresholds for gross primary productivity [PDF]

Ecosphere, 2018
AbstractTropical forests are hyper‐diverse and perform critical functions that regulate global climate, yet they are also threatened by rising temperatures. Canopy temperatures depart considerably from air temperatures, sometimes by as much as air temperatures are projected to increase by the end of this century; however, canopy temperatures are rarely
Stephanie Pau, Matteo Detto, Youngil Kim, Christopher J. Still   +3 more
openaire   +1 more source

Large historical growth in global terrestrial gross primary production

Nature, 2017
Growth in terrestrial gross primary production (GPP)-the amount of carbon dioxide that is 'fixed' into organic material through the photosynthesis of land plants-may provide a negative feedback for climate change. It remains uncertain, however, to what extent biogeochemical processes can suppress global GPP growth. As a consequence, modelling estimates
Campbell, J. E., Berry, J. A., Seibt, U., Smith, S. J., Montzka, S. A., Launois, Thomas, Belviso, Sauveur, Bopp, Laurent, Laine, M.   +8 more
openaire   +4 more sources

CEDAR-GPP: spatiotemporally upscaled estimates of gross primary productivity incorporating CO₂ fertilization [PDF]

Earth System Science Data
Gross primary productivity (GPP) is the largest carbon flux in the Earth system, playing a crucial role in removing atmospheric carbon dioxide and providing carbohydrates needed for ecosystem metabolism.
Y. Kang, Y. Kang, Y. Kang, M. Bassiouni, M. Bassiouni, M. Gaber, M. Gaber, X. Lu, X. Lu, T. F. Keenan, T. F. Keenan   +10 more
doaj   +1 more source

A new two-decade (2001–2019) high-resolution agricultural primary productivity dataset for India

Scientific Data, 2022
Measurement(s) gross primary productivity Technology Type(s) remote sensing Factor Type(s) vegetation, radiation, water Sample Characteristic - Organism vegetation Sample Characteristic - Location ...
Prasun K. Gangopadhyay, Paresh B. Shirsath, Vinay K. Dadhwal, Pramod K. Aggarwal   +3 more
doaj   +1 more source

No impact of tropospheric ozone on the gross primary productivity of a Belgian pine forest [PDF]

, 2017
Imbalance-P paper. Contact with Lore Verryckt: Lore.Verryckt@uantwerpen.beHigh stomatal ozone (O3) uptake has been shown to negatively affect crop yields and the growth of tree seedlings.
Gielen, Bert, Janssensd, Ivan A., Neirynck, Johan, Op de Beeck, Maarten, Roland, Marilyn, Verryckt, Lore   +5 more
core   +2 more sources

Gross primary production of global forest ecosystems has been overestimated [PDF]

Scientific Reports, 2015
AbstractCoverage rate, a critical variable for gridded forest area, has been neglected by previous studies in estimating the annual gross primary production (GPP) of global forest ecosystems. In this study, we investigated to what extent the coverage rate could impact forest GPP estimates from 1982 to 2011. Here we show that the traditional calculation
Jianyong Ma, Xiaodong Yan, Wenjie Dong, Jieming Chou   +3 more
openaire   +2 more sources

Better representation of vegetation phenology improves estimations of annual gross primary productivity

Ecological Informatics
Carbon uptake by vegetation plays a vital role in the global carbon cycle. Annual gross primary productivity (AGPP) represents the total amount of carbon compounds produced by vegetation photosynthesis over a year and is a crucial metric for quantifying ...
Hanliang Gui, Qinchuan Xin, Xuewen Zhou, Wei Wu, Zhenhua Xiong   +4 more
doaj   +1 more source