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About this book
As the reality of human-mediated global change becomes increasingly accepted by a sceptical public, so the scientific research that has identified this situation has become increasingly high profile. However, while we can almost see the leaves before us changing, the same is not true of plant roots - we ignore this hidden half at our peril. This book addresses root dynamics in the face of a globally changing environment and asks the key questions: Do atmospheric and climatic changes alter root production and root longevity? How do the changes impact on the whole plant and its microbial symbiotic partners? And ultimately, how do these changes alter the ecosystem itself? The ecosystem perspective is especially important - root turnover is a key component of ecosystem metabolism and the capacity of ecosystems to store carbon. It is clear that the prim challenges still concern how to reach and analyse the roots themselves, but where there are gaps in our knowledge, many researchers are finding that the visible half - the leaves - often do provide a good analogy for roots. The reviews and original research reported here provide a comprehensive overview of the subject and point the way ahead for systematic scientific exploration of this compelling topic of our times.
Contents
1. Root Dynamics And Global Change: Seeking An Ecosystem Perspective 2. Global Patterns Of Root Turnover For Terrestrial Ecosystems 3. Building Roots In A Changing Environment: Implications For Root Longevity 4. The Control Of Carbon Acquisition By Roots 5. Spatial And Temporal Deployment Of Crop Roots In CO2-Enriched Environments 6. Dynamics Of Root Systems In Native Grasslands: Effects Of Elevated CO2 7. Elevated CO2 And Conifer Roots: Effects On Growth, Life Span And Turnover 8. Responses Of Tree Fine Roots To Temperature 9. Effects Of Altered Water Regimes On Forest Root Systems 10. The Potential Effects Of Nitrogen Deposition On Fine-Root Production In Forest Ecosystems 11. Response Of Root Respiration To Changes In Temperature And Its Relevance To Global Warming 12. Kinetics Of Nutrient Uptake By Roots: Responses To Global Change 13. Assessing Root Death And Root System Dynamics In A Study Of Grape Canopy Pruning 14. The Impact Of Elevated CO2 And Global Climate Change On Arbuscular Mycorrhizas: A Mycocentric Approach 15. Mycorrhizal Fungi Have A Potential Role To Play In Soil Carbon Storage Under Elevated CO2 And Nitrogen Deposition 16. Elevated Atmospheric CO2, Fine Roots And The Response Of Soil Microorganisms A Review And Hypothesis 17. The Representation Of Root Processes In Models Addressing The Responses Of Vegetation To Global Change
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