Annual Gross Primary Production from Vegetation Indices: A Theoretically Sound Approach
نویسندگان
چکیده
منابع مشابه
A Comparison of Satellite-Derived Vegetation Indices for Approximating Gross Primary Productivity of Grasslands
Gross primary productivity (GPP) is a key component of ecosystem carbon fluxes and the carbon balance between the biosphere and the atmosphere. Accurate estimation of GPP is essential for quantifying plant production and carbon balance for grasslands. Satellite-derived vegetation indices (VIs) are often used to approximate GPP. The widely used VIs include atmospherically resistant vegetation in...
متن کاملPotential gross primary productivity of terrestrial vegetation from 19821990
Monthly mean global green leaf area and photosynthetically active radiation estimated from observations made from several geostationary and polar orbiting satellites were used to estimate potential, (i.e., unstressed) gross primary productivity of terrestrial vegetation from 1982 to 1990. Mean annual gross primary productivity was estimated to be about 179.9 q1.6 Pg C (1 Pg = 1015 g)o Grasses a...
متن کاملGlobal Validation of a Process-Based Model on Vegetation Gross Primary Production Using Eddy Covariance Observations
Gross Primary Production (GPP) is the largest flux in the global carbon cycle. However, large uncertainties in current global estimations persist. In this study, we examined the performance of a process-based model (Integrated BIosphere Simulator, IBIS) at 62 eddy covariance sites around the world. Our results indicated that the IBIS model explained 60% of the observed variation in daily GPP at...
متن کاملA global moderate resolution dataset of gross primary production of vegetation for 2000–2016
Accurate estimation of the gross primary production (GPP) of terrestrial vegetation is vital for understanding the global carbon cycle and predicting future climate change. Multiple GPP products are currently available based on different methods, but their performances vary substantially when validated against GPP estimates from eddy covariance data. This paper provides a new GPP dataset at mod...
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2017
ISSN: 2072-4292
DOI: 10.3390/rs9030193