John B. Bradford, William K. Lauenroth, and Ingrid C. Burke. 2005. The impact of cropping on primary production in the U. S. Great Plains. Ecology 86:1863–1872.

Appendices

Appendix A: Values and references for allocation ratios and harvest indices for agricultural crops in the U.S. Great Plains.
Ecological Archives E086-098-A1.

Appendix B: A figure showing the proportion of current net primary production that is accounted for by cropping in counties of the U.S. Great Plains.
Ecological Archives E086-098-A2.

Appendix C: A figure showing carbon allocation ratio, expressed as belowground productivity divided by aboveground productivity for counties in the U.S. Great Plains under native and current (cropped) conditions.
Ecological Archives E086-098-A3.

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