Unknown

Dataset Information

0

Decadal-scale shifts in soil hydraulic properties as induced by altered precipitation.


ABSTRACT: Soil hydraulic properties influence the partitioning of rainfall into infiltration versus runoff, determine plant-available water, and constrain evapotranspiration. Although rapid changes in soil hydraulic properties from direct human disturbance are well documented, climate change may also induce such shifts on decadal time scales. Using soils from a 25-year precipitation manipulation experiment, we found that a 35% increase in water inputs substantially reduced infiltration rates and modestly increased water retention. We posit that these shifts were catalyzed by greater pore blockage by plant roots and reduced shrink-swell cycles. Given that precipitation regimes are expected to change at accelerating rates globally, shifts in soil structure could occur over broad regions more rapidly than expected and thus alter water storage and movement in numerous terrestrial ecosystems.

SUBMITTER: Caplan JS 

PROVIDER: S-EPMC6739112 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature

altmetric image

Publications

Decadal-scale shifts in soil hydraulic properties as induced by altered precipitation.

Caplan Joshua S JS   Giménez Daniel D   Hirmas Daniel R DR   Brunsell Nathaniel A NA   Blair John M JM   Knapp Alan K AK  

Science advances 20190911 9


Soil hydraulic properties influence the partitioning of rainfall into infiltration versus runoff, determine plant-available water, and constrain evapotranspiration. Although rapid changes in soil hydraulic properties from direct human disturbance are well documented, climate change may also induce such shifts on decadal time scales. Using soils from a 25-year precipitation manipulation experiment, we found that a 35% increase in water inputs substantially reduced infiltration rates and modestly  ...[more]

Similar Datasets

2010-12-30 | GSE22825 | GEO
| S-EPMC3617915 | biostudies-literature
2010-12-30 | E-GEOD-22825 | biostudies-arrayexpress
| S-EPMC7576146 | biostudies-literature
| S-EPMC5673896 | biostudies-other
| S-EPMC9314379 | biostudies-literature
| S-EPMC7871028 | biostudies-literature
| S-EPMC7233133 | biostudies-literature
| S-EPMC6178430 | biostudies-literature
| S-EPMC3411978 | biostudies-literature