Changes in soil water dynamics due to variation in precipitation and temperature

An ecohydrological analysis in a tallgrass prairie

Jesse E Bell, Rebecca Sherry, Yiqi Luo

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

There is considerable evidence that future global climate change will increase temperature and alter precipitation regime. To better understand how these factors will influence soil water dynamics, it is imperative to use multifactorial experiments. A 1 year "pulse" experiment, with 4°C warming and a doubling in precipitation, was performed to evaluate the changes in soil moisture dynamics. Frequency distribution analyses of soil moisture and soil temperature were used to explore the consequences of climate change on ecohydrological processes at different soil depths. There was a decrease in soil moisture frequency from 0 to 120 cm in both warming and warming with increased precipitation experiments. Different soil depths had similar patterns of change in soil moisture and soil temperature frequency. Additionally, we correlated evapotranspiration and soil moisture to look at changes in evapotranspiration from the wilting point (Ew) to maximum evapotranspiration (E max). These results revealed a shift in the slope and position of Ew to Emax with experimental warming. Our results showed that the soil moisture dynamics and the ecohydrology were changed by different global climate change scenarios. Understanding the effects of global warming on soil moisture dynamics will be critical for predicting changes in ecosystem level processes.

Original languageEnglish (US)
Article numberW03523
JournalWater Resources Research
Volume46
Issue number3
DOIs
StatePublished - Mar 20 2010

Fingerprint

prairie
soil moisture
soil water
warming
temperature
evapotranspiration
soil depth
soil temperature
climate change
global climate
ecohydrology
wilting
experiment
analysis
global warming
ecosystem

ASJC Scopus subject areas

  • Water Science and Technology

Cite this

Changes in soil water dynamics due to variation in precipitation and temperature : An ecohydrological analysis in a tallgrass prairie. / Bell, Jesse E; Sherry, Rebecca; Luo, Yiqi.

In: Water Resources Research, Vol. 46, No. 3, W03523, 20.03.2010.

Research output: Contribution to journalArticle

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