Microbial biogeochemical cycling of nitrogen in arid ecosystems
Arid ecosystems cover∼ 40% of the Earth's terrestrial surface and store a high proportion of
the global nitrogen (N) pool. They are low-productivity, low-biomass, and polyextreme …
the global nitrogen (N) pool. They are low-productivity, low-biomass, and polyextreme …
Aridity and plant uptake interact to make dryland soils hotspots for nitric oxide (NO) emissions
Nitric oxide (NO) is an important trace gas and regulator of atmospheric photochemistry.
Theory suggests moist soils optimize NO emissions, whereas wet or dry soils constrain …
Theory suggests moist soils optimize NO emissions, whereas wet or dry soils constrain …
Rapid nitrate reduction produces pulsed NO and N2O emissions following wetting of dryland soils
Soil drying and wetting cycles can produce pulses of nitric oxide (NO) and nitrous oxide
(N2O) emissions with substantial effects on both regional air quality and Earth's climate …
(N2O) emissions with substantial effects on both regional air quality and Earth's climate …
Chronic dry nitrogen inputs alter soil microbial community composition in Southern California semi-arid shrublands
T Grant, A Sethuraman, MA Escobar, GL Vourlitis - Applied Soil Ecology, 2022 - Elsevier
Atmospheric nitrogen (N) deposition represents an important input of N into natural
ecosystems such as semiarid shrublands of Southern California, which can receive up to 45 …
ecosystems such as semiarid shrublands of Southern California, which can receive up to 45 …
Assessing nitrogen-saturation in a seasonally dry chaparral watershed: limitations of traditional indicators of N-saturation
To evaluate nitrogen (N) saturation in xeric environments, we measured hydrologic N
losses, soil N pools, and microbial processes, and developed an N-budget for a chaparral …
losses, soil N pools, and microbial processes, and developed an N-budget for a chaparral …
Large nitrogen oxide emission pulses from desert soils and associated microbiomes
Nitrogen (N) trace gas emission pulses produced after wetting dry soils may be important
pathways of ecosystem N loss. However, the rates and mechanisms controlling these …
pathways of ecosystem N loss. However, the rates and mechanisms controlling these …
Rainfall amount and timing jointly regulate the responses of soil nitrogen transformation processes to rainfall increase in an arid desert ecosystem
W Song, S Chen, Y Zhou, G Lin - Geoderma, 2020 - Elsevier
Climate models predict greater rainfall will occur in the arid and semiarid regions of
Northwest China, where nitrogen (N) cycling is particularly sensitive to changes in rainfall …
Northwest China, where nitrogen (N) cycling is particularly sensitive to changes in rainfall …
Acidity and organic matter promote abiotic nitric oxide production in drying soils
Soils are an important source of NO, particularly in dry lands because of trade‐offs that
develop between biotic and abiotic NO‐producing processes when soils dry out …
develop between biotic and abiotic NO‐producing processes when soils dry out …
Potential soil extracellular enzyme activity is altered by long-term experimental nitrogen deposition in semiarid shrublands
GL Vourlitis, K Kirby, I Vallejo, J Asaeli, JM Holloway - Applied Soil Ecology, 2021 - Elsevier
Semi-arid shrublands in southern California are exposed to high levels of atmospheric dry
nitrogen (N) deposition, which can alter soil microbial activity, and thus, ecosystem carbon …
nitrogen (N) deposition, which can alter soil microbial activity, and thus, ecosystem carbon …
Controls of nitrogen cycling evaluated along a well‐characterized climate gradient
The supply of nitrogen (N) constrains primary productivity in many ecosystems, raising the
question “what controls the availability and cycling of N”? As a step toward answering this …
question “what controls the availability and cycling of N”? As a step toward answering this …