Perspectives in Grassland Ecology: Results and Applications of the US/IBP Grassland Biome Study

Front Cover
N.R. French
Springer Science & Business Media, Dec 6, 2012 - Science - 204 pages
This volume is a result of the summary and synthesis of data collected in the Grassland Biome Program, which is part of the American contribution to the International Biological Program (IBP). The purpose of this volume is to present a summary of quantitative ecological investigations of North American grass lands and to present a set of broad comparisons of their characteristics and functions as well as the results of some models and experiments that lead to practical considerations of the management of grasslands. Synthesis is a continuing activity in science. Early in the Grassland Biome Program there was a synthesis of literature data on grasslands, edited by R. L. Dix and R. G. Beidleman (1969). Results of the first year of field data collection under this program were synthesized in a volume edited by N. R. French (1971). Development of the large-scale model constructed to depict the processes and the dynamics of state variables in grassland ecosystems was presented by Innis (1978). Soon to appear will be two volumes integrating studies of American grasslands with IBP studies in other grasslands of the world (Coupland, in press) and the application of systems analysis to understanding grassland function and utilization (Breymeyer and Van Dyne, in press). The present volume presents current results and comparisons of field investigations and experimental studies that were conducted under this program.
 

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Contents

Introduction
1
LAYCOCK W A USDASEA Forage and Range Management Crops Research
8
North American Grasslands in Perspective
18
Simulated Biomass Dynamics
35
Results
48
Grassland Biomass Trophic Pyramids
59
Results
66
Discussion
80
Losses of N from Grassland Ecosystems
121
Conclusions
128
Simulated Impact of Management Practices upon the Tallgrass Prairie
135
Summary
152
DataBased Empirical Dynamic Matrix Modeling of Rangeland
157
Model Testing
163
Summary
171
Producer Interrelationships
179

Summary
87
Summary
102
Summary
115
Trophic Relationships
186
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