Atmospheric carbon dioxide concentration ([CO2]) is increasing, which increases leaf‐scale
photosynthesis and intrinsic water‐use efficiency. These direct responses have the potential …

In the context of a recent massive increase in research on plant root functions and their
impact on the environment, root ecologists currently face many important challenges to keep …

The concept of a root economics space (RES) is increasingly adopted to explore root trait
variation and belowground resource‐acquisition strategies. Much progress has been made …

Executive summary Land and climate interact in complex ways through changes in forcing
and multiple biophysical and biogeochemical feedbacks across different spatial and …

Managing soil organic matter (SOM) stocks to address global change challenges requires
well‐substantiated knowledge of SOM behavior that can be clearly communicated between …

Over 70% of soil organic carbon (SOC) is stored at a depth greater than 20 cm belowground.
A portion of this deep SOC actively cycles on annual to decadal timescales and is sensitive …

Due to their substantial volume, subsoils contain more of the total soil carbon (C) pool than
topsoils. Much of this C is thousands of years old, suggesting that subsoils offer …

Root exudates are a pathway for plant–microbial communication and play a key role in
ecosystem response to environmental change. Here, we collate recent evidence that shows …

Root exudates are an essential carrier for material cycling, energy exchange, and
information transfer between the belowground parts of plants and the soil. We synthesize …

Background Plant roots assemble microbial communities both inside the roots and in the
rhizosphere, and these root-associated microbiomes play pivotal roles in plant nutrition and …