Concepts

All (320)Explore Concept Graph

320 concepts

theory

growth rate hypothesis

Organisms with higher growth rates require greater cellular concentration of ribosomes and have greater tissue RNA content

biogeochemistry1 paper
measurement

gypsum saturation index

biogeochemistry1 paper
measurement

heavy fraction

biogeochemistry1 paper
process

internal production

biogeochemistry1 paper
hypothesis

iron hypothesis

The proposal that ferric-ferrous iron redox shifts sequester additional phosphorus needed to stimulate nuisance D. geminata blooms in oligotrophic streams

biogeochemistry1 paper
process

isolated decomposition

Decomposition of litter isolated from tree canopy and root network influences to study selective pressures from litter chemistry alone

biogeochemistry1 paper
process

kinetic constraints

biogeochemistry1 paper
phenomenon

legacy contamination

biogeochemistry1 paper
measurement

lignin content

biogeochemistry1 paper
process

manganese cycling

The oxidation and reduction reactions of manganese in aquatic sediments, influenced by oxygen availability and organic carbon supply

biogeochemistry1 paper
measurement

metal speciation

Identification and quantification of different chemical forms and binding environments of metals in environmental samples

biogeochemistry1 paper
process

microbial communities

Soil microorganisms that consume nitrogen when carbon is added, affecting plant nutrient availability

biogeochemistry1 paper
framework

microbial efficiency matrix stabilization

Framework suggesting that more labile plant material may be easier for soil microbes to assimilate and transform into microbial necromass, which can become more physically or chemically protected thro...

biogeochemistry1 paper
process

mineral-organic associations

Associations between organic compounds and reactive minerals that can effectively protect organic compounds from microbial access and represent an important C storage mechanism in upland soil systems

biogeochemistry1 paper
measurement

molecular weight

biogeochemistry1 paper
process

molybdenum mineralization

biogeochemistry1 paper
measurement

monomethylmercury

biogeochemistry1 paper
measurement

needle chemistry

biogeochemistry1 paper
process

nitrogen fixation

The biological conversion of atmospheric nitrogen to ammonia, making lupine a high-nitrogen host plant

biogeochemistry1 paper
phenomenon

nitrogen pulse

biogeochemistry1 paper
measurement

nitrogen uptake rate

Net uptake rate (NUR) of nitrogen calculated from 15N tracer experiments measuring plant nitrogen acquisition

biogeochemistry1 paper
measurement

nitrogen-15

biogeochemistry1 paper
metric

nominal oxidation state of carbon

A measure directly related to the amount of energy required for microbial oxidation of a given compound, with higher NOSC values correlating to lower ΔGox and greater energy yield

biogeochemistry1 paper
measurement

nonstructural carbohydrates

biogeochemistry1 paper
framework

nutrient supply-demand balance

Comparison of animal-driven nutrient inputs versus ecosystem uptake capacity to determine if nutrients are in surplus or deficit

biogeochemistry1 paper
process

nutrient uptake

Cellular uptake of nutrients by algal colonies from the surrounding water

biogeochemistry1 paper
measurement

paleosalinity reconstruction

Determination of ancient water salinity conditions using geochemical and paleontological indicators

biogeochemistry1 paper
measurement

particulate organic matter

Organic matter within the solid phase that can sorb metals and limit their mobility

biogeochemistry1 paper
process

passivation coatings

Surface coatings of Si and organic matter that stabilize ferrihydrite nanoparticles against dissolution or transformation

biogeochemistry1 paper
measurement

phenol oxidative potential

Capacity of soil to oxidize phenolic compounds, measured using L-DOPA substrate and spectrophotometric detection of oxidation products

biogeochemistry1 paper
process

photosynthesis

Process by which plants convert light energy to chemical energy, with formula 6CO2+6H2O → C6H12O6+6O2

biogeochemistry1 paper
phenomenon

polycyclic aromatic hydrocarbons

Based on six membered planar hydrocarbon rings, such as benzene, coronene, or anthracene, known carcinogens that play a role in soot formation

biogeochemistry1 paper
measurement

polyunsaturated fatty acids (PUFAs)

Important biochemicals for regular bodily functions, primarily sourced from algae in aquatic systems

biogeochemistry1 paper
process

priming mechanisms

biogeochemistry1 paper
measurement

rare earth elements

biogeochemistry1 paper
metric

reaeration coefficient

biogeochemistry1 paper
phenomenon

redox gradients

Sharp redox gradients that favor the generation of ROS, created by mixing between waters with largely different chemical compositions

biogeochemistry1 paper
phenomenon

redox microsites

Non-majority spatially heterogeneous soil volumes possessing conditions differing from the bulk matrix, where internal oxygen consumption exceeds the rate of oxygen supply

biogeochemistry1 paper
phenomenon

redox zones

biogeochemistry1 paper
phenomenon

redox-active mountainous floodplain sediments

biogeochemistry1 paper
process

reducing conditions

biogeochemistry1 paper
process

reductive TCA cycle

biogeochemistry1 paper
framework

rhenium as tracer

biogeochemistry1 paper
measurement

rock-N release rate

biogeochemistry1 paper
measurement

root exudates

biogeochemistry1 paper
phenomenon

saprolite

Weathered bedrock zone between soil and unweathered bedrock that retains original rock structure

biogeochemistry1 paper
process

sericitization

biogeochemistry1 paper
process

siderite solubility

The dissolution process of iron carbonate mineral (FeCO3) under varying geochemical conditions

biogeochemistry1 paper
process

silicate weathering feedback

The negative feedback system where increased atmospheric CO2 enhances silicate weathering rates, which removes CO2 from the atmosphere through carbonate precipitation

biogeochemistry1 paper
measurement

silicon exports

biogeochemistry1 paper