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Validation of a primary production model of the desert shrub Larrea tridentata using soil-moisture augmentation experiments.

Publication ,  Journal Article
Reynolds, JF; Cunningham, GL
Published in: Oecologia
January 1981

In previous papers we have described and verified a primary production model of the desert shrub Larrea tridentata. Here we address the validation phase of the evaluation of this model. Two versions of the model which differ in the priority scheme used for allocating carbon to reproductive or vegetative organs were compared on the basis of their usefulness and reliability over a range of soil-moisture conditions. Over an entire growing season when soil-moisture conditions were near "normal" both versions of the model were adequate predictors of total above-ground vegetative growth and one was an adequate predictor of reproductive growth as well. A more detailed analysis revealed that the versions varied in the range of soil-moisture conditions over which they were adequate and that neither was adequate when soil-moisture had remained high for extended periods. The validation process has revealed some likely areas for model improvement to increase adequacy.

Duke Scholars

Published In

Oecologia

DOI

EISSN

1432-1939

ISSN

0029-8549

Publication Date

January 1981

Volume

51

Issue

3

Start / End Page

357 / 363

Related Subject Headings

  • Ecology
  • 3109 Zoology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0602 Ecology
 

Citation

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Reynolds, J. F., & Cunningham, G. L. (1981). Validation of a primary production model of the desert shrub Larrea tridentata using soil-moisture augmentation experiments. Oecologia, 51(3), 357–363. https://doi.org/10.1007/bf00540906
Reynolds, James F., and Gary L. Cunningham. “Validation of a primary production model of the desert shrub Larrea tridentata using soil-moisture augmentation experiments.Oecologia 51, no. 3 (January 1981): 357–63. https://doi.org/10.1007/bf00540906.
Reynolds, James F., and Gary L. Cunningham. “Validation of a primary production model of the desert shrub Larrea tridentata using soil-moisture augmentation experiments.Oecologia, vol. 51, no. 3, Jan. 1981, pp. 357–63. Epmc, doi:10.1007/bf00540906.
Journal cover image

Published In

Oecologia

DOI

EISSN

1432-1939

ISSN

0029-8549

Publication Date

January 1981

Volume

51

Issue

3

Start / End Page

357 / 363

Related Subject Headings

  • Ecology
  • 3109 Zoology
  • 3104 Evolutionary biology
  • 3103 Ecology
  • 0602 Ecology