Atmospheric change encompassing a rising carbon dioxide (CO 2) concentration is one
component of Global Change that affects various ecosystem processes and functions. The …

Background The soil represents a reservoir that contains at least twice as much carbon as
does the atmosphere, yet (apart from 'root crops') mainly just the above-ground plant …

We examined the role of arbuscular mycorrhizal fungi (AMF) in ecosystems using soil
aggregate stability and C and N storage as representative ecosystem processes. We utilized …

Soils contain the largest pool of terrestrial organic carbon (C) and are a major source of
atmospheric carbon dioxide (CO2). Thus, they may play a key role in modulating climate …

Abstract free air carbon dioxide enrichment (FACE) and open top chamber (OTC) studies
are valuable tools for evaluating the impact of elevated atmospheric CO2 on nutrient cycling …

Contents Summary 507 I. Introduction 507 II. The return on investment approach 508 III. CO2
response spectrum 510 IV. Discussion 516 Acknowledgements 518 References 518 …

Increased belowground carbon (C) transfer by plant roots at elevated CO2 may change
properties of the microbial community in the rhizosphere. Previous investigations that …

The residence time of fine-root carbon in soil is one of the least understood aspects of the
global carbon cycle, and fine-root dynamics are one of the least understood aspects of plant …

Soil is the largest reservoir of organic carbon (C) in the terrestrial biosphere and soil C has a
relatively long mean residence time. Rising atmospheric carbon dioxide (CO2) …

Forest subsoils may represent an important C sink in a warming world, but rhizodeposition
as the key biogeochemical process determining the C sink strength of mature forests has not …