Concepts
34 concepts
climate change
Global temperature increase and associated changes in precipitation patterns and extreme weather affecting ecosystems worldwide
leaf water content
Fresh weight minus dry weight divided by dry weight
air temperature
carbon cycling
precipitation
nitrogen retention
elevation gradient
soil respiration
CO2 efflux from soils to atmosphere representing combination of autotrophic respiration (root respiration) and heterotrophic respiration (microbial decomposition)
thermal constraints
Limitations on activity imposed by temperature and radiation conditions
phenology
trait variation
aboveground primary productivity
Net production of plant biomass above ground surface measured as standing crop minus losses to herbivores
soil organic carbon stabilization
Mechanisms by which organic carbon is protected from decomposition in soils through physical, chemical, and biological processes
energy harvest capacity
The microbiome's ability to extract energy from dietary sources
environmental variability
Temporal variation in environmental conditions measured as standard deviation of temperature and vegetation indices
stand density effects
How tree growth and biomass allocation patterns change based on local neighborhood tree density and competition
NDVI
Normalized Difference Vegetation Index, derived from satellite imagery to estimate vegetation greenness and photosynthetic activity
spectral reflectance
Light absorption and reflection properties of tissues that vary with chemical composition and structure
seasonal cycle
species abundance
Population size or density of individual species within a habitat
photosynthetic storage
sensible heat flux
radiative transfer modeling
Computational approach to calculate radiation fluxes through the atmosphere under specified atmospheric conditions
canopy surface area
soil pH
Measure of soil acidity/alkalinity that may influence plant phenotype expression
PET/P ratio
meteorology
latitudinal gradient
warming
macronutrient composition
The relative proportions of essential macronutrients (proteins, lipids, carbohydrates) in pollen samples
LM
spectral sensitivity
digital elevation model
Raster representation of terrain elevation used to derive topographic attributes like slope and aspect
