Assessing targets for the restoration of herbaceous vegetation in Ponderosa pine forests

Daniel C. Laughlin, Margaret M Moore, Jonathan D. Bakker, Cheryl A. Casey, Judith D. Springer, Peter Z Fule, Wallace W Covington

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

A restoration project is considered a success when the initial target is met, but many targets are plausible. We evaluated the success of a restoration project in its 11th year since treatment in a southwestern ponderosa pine-bunchgrass community and the appropriateness of several targets. We measured the responses of (1) total standing crop; (2) standing crop of five functional groups (C3 and C4 graminoids, leguminous forbs, and nonleguminous perennial and annual forbs); (3) graminoid community composition; and (4) standing crop of five common graminoid species (Festuca arizonica, Muhlenbergia montana, Elymus elymoides, Carex geophila, and Poa fendleriana). Targets were quantified in remnant grass patches, which provided the standards for these targets, and were assessed in three other forest patch types (pre-settlement tree patches, post-settlement tree patches, and patches where all post-settlement trees were removed). Patches where all post-settlement trees were removed reached target levels for total standing crop, C3 and C4 graminoid standing crop, graminoid community composition, and M. montana, E. elymoides, and C. geophila standing crops. Standing crop of legumes and of F. arizonica did not increase over time in any patch type. Targets were not met in pre-settlement patches or in patches where some post-settlement trees were left standing, suggesting that it is unrealistic to expect equal responses across all patch types. If increasing herbaceous standing crop is a major goal, practitioners should create gaps within the pine forest canopy.

Original languageEnglish (US)
Pages (from-to)548-560
Number of pages13
JournalRestoration Ecology
Volume14
Issue number4
DOIs
StatePublished - Dec 2006

Fingerprint

Pinus ponderosa
coniferous forests
vegetation
biomass
crops
Muhlenbergia montana
Festuca arizonica
Elymus elymoides
forbs
Poa fendleriana
community composition
restoration
Carex
forest canopy
functional group
legumes
graminoids
grass
grasses

Keywords

  • Biomass
  • C
  • C
  • Elymus elymoides
  • Festuca arizonica
  • Herbaceous standing crop
  • Legumes
  • Muhlenbergia montana
  • Patch

ASJC Scopus subject areas

  • Ecology

Cite this

Assessing targets for the restoration of herbaceous vegetation in Ponderosa pine forests. / Laughlin, Daniel C.; Moore, Margaret M; Bakker, Jonathan D.; Casey, Cheryl A.; Springer, Judith D.; Fule, Peter Z; Covington, Wallace W.

In: Restoration Ecology, Vol. 14, No. 4, 12.2006, p. 548-560.

Research output: Contribution to journalArticle

Laughlin, Daniel C. ; Moore, Margaret M ; Bakker, Jonathan D. ; Casey, Cheryl A. ; Springer, Judith D. ; Fule, Peter Z ; Covington, Wallace W. / Assessing targets for the restoration of herbaceous vegetation in Ponderosa pine forests. In: Restoration Ecology. 2006 ; Vol. 14, No. 4. pp. 548-560.
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