Related Experiment Video
Updated: Jul 12, 2026

Simulating Temperature in a Soil Incubation Experiment
Published on: October 28, 2022
Asymmetric temperature responses to soil moisture drought legacies under anthropogenic forcing
Jun Li1, Minchao Wu2,3, Weilin Liao4,5
1Interdisciplinary Institute for Future Water and Ocean Intelligence, School of Civil Engineering and Transportation, South, China University of Technology, Guangzhou, China. junli2025@scut.edu.cn.
None:
As anthropogenic forcing intensifies, soil moisture droughts have become prevalent across many regions. Soil moisture anomalies can influence near-surface air temperature by modulating both energy and carbon fluxes. However, the annual temperature response to soil moisture anomalies in the year following a soil moisture drought remains unclear. Here, we show that annual soil water loss in the year after soil moisture droughts induces a larger annual warming effect than the annual cooling from an equivalent water gain. This asymmetric response arises only when the effects of anthropogenic greenhouse gas forcing are included, where vegetation is more strongly suppressed after soil moisture drought than enhanced after soil moisture gaining, contributing to reduced transpiration and carbon uptake that collectively amplify warming. More than 60% of global land areas exhibit the asymmetry. Our findings suggest that past climate extremes may accelerate future warming by impairing vegetation's capacity to regulate biophysical and biogeochemical processes.
More Related Videos
Related Concept Videos
Responses to Drought and Flooding
Responses to Heat and Cold Stress
Adaptations that Reduce Water Loss
Global Climate Change
Regulation of Transpiration by Stomata
Soil Microbial Ecology

