Belowground Responses to Rising Atmospheric Co2

by Curtis, Peter S.

• ISBN13: 9780792329015
• ISBN10: 0792329015
• Format: Hardcover
• Copyright: 1995-04-01
• Publisher: Kluwer Academic Pub

Summary

As atmospheric CO2 increases there will almost certainly be alterations in soil carbon fluxes. It is likely that such alterations will be accompanied by changes in the partitioning of carbon between organic structures and to soil processes. These changes have the potential for further altering the structure and function of terrestrial ecosystems. While there has been increasing recognition of the importance of soil-mediated responses to global climate change, the nature and magnitude of these responses are not well understood. In an effort to expand our assessment of the significance of belowground responses to rising atmospheric CO2, a workshop has been organized that resulted in the peer-reviewed contributions that are contained in this volume.

Table of Contents

Belowground responses to rising atmospheric CO2: Implications for plants, soil biota and ecosystem processes

Executive summary

Root Biology:- Issues and perspectives for investigating root responses to elevated atmospheric carbon dioxide

Root response to CO2 enrichment and nitrogen supply in loblolly pine

Free-air CO2 enrichment of cotton: Vertical and lateral root distribution patterns

Above and belowground response of Populus grandidentata to elevated atmospheric CO2 and soil N availability

Soil Biota:- Responses of soil biota to elevated atmospheric carbon dioxide

Soil microbial response in tallgrass prairie to elevated CO2

The response of mycorrhizal colonization to elevated CO2 and climate change in Pascopyrum smithii and Bouteloua gracilis

Effect of elevated CO2 on mycorrhizal colonization of loblolly pine (Pinus taeda L.) seedlings

Evaluation of the use of a model rhizodeposition technique to separate root and microbial respiration in soil

Ecosystem Processes:- Biomass production in a nitrogen-fertilized, tallgrass prairie ecosystem exposed to ambient and elevated levels of CO2

Effects of elevated CO2 and nitrogen fertilization pretreatments on decomposition on tallgrass prairie leaf litter

Soil pCO2, soil respiration, and root activity in CO2-fumigated and nitrogen-fertilized ponderosa pine

Enhanced root system C-sink activity, water relations and aspects of nutrient acquisition in mycotrophic Bouteloua gracilis subjected to CO2 enrichment

Modelling:- Modelling the belowground response of plants and soil biota to edaphic and climatic change -- What can we expect to gain?

Carbon cost of root systems: An architectural approach

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