Gross Primary Productivity 2000-2014

Gross primary productivity (GPP) is a measure of ecosystem functioning. It represents the cumulative effect of ecological processes such as soil formation, nutrient cycling, photosynthesis, and population dynamics. Productivity may be related to patterns in species diversity (Currie 1991, Hector et al. 1999). For example, the most common hypothesis is that species diversity is greatest at moderate levels of primary productivity (Loreau et al. 2001). GPP quantifies the amount of carbon absorbed by living plants during photosynthesis. GPP units are in kilograms of carbon per square metre per year (kg C/m 2/yr). The GPP dataset was developed from MODIS GPP/NPP (MOD17) 1-km 2 resolution satellite imagery (Zhao et al. 2005, 2006, Zhao [...]