Research Note

Alignment of elongated Nassella pulchra plants with hill-slope contours

Jeffrey Fehmi, Michele Hammond, James W. Bartolome

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

On 10 sloped grassland sites, 175 Nassella pulchra plants were randomly selected and their basal geometry measured. Plants were not circular (p < 0.001) with an average elongation of 30.3% + 20.7 and 89% of the plants had greater than 10% elongation. Sixty-six percent of the plants had the elongation oriented along the contours. Elongation was correlated with slope steepness (p = 0.003, r2 = 0.06), but unrelated to the angle the long axis was deflected from the slope fall line (p = 0.21, r2 = 0.02). This elongation and orientation potentially reduced overland flow compared to circular plants.

Original languageEnglish (US)
Pages (from-to)212-215
Number of pages4
JournalArid Land Research and Management
Volume22
Issue number3
DOIs
StatePublished - Jul 2008

Fingerprint

topographic slope
Elongation
overland flow
grasslands
grassland
Nassella pulchra
alignment
geometry
Geometry

Keywords

  • California annual grassland
  • Hydrology
  • Model assumptions

ASJC Scopus subject areas

  • Soil Science
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Research Note : Alignment of elongated Nassella pulchra plants with hill-slope contours. / Fehmi, Jeffrey; Hammond, Michele; Bartolome, James W.

In: Arid Land Research and Management, Vol. 22, No. 3, 07.2008, p. 212-215.

Research output: Contribution to journalArticle

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