Study

The role of disturbance severity and canopy closure on standing crop of understory plant species in ponderosa pine stands in northern Arizona, USA

  • Published source details Sabo K.E., Sieg C.H., Hart S.C. & Bailey J.D. (2009) The role of disturbance severity and canopy closure on standing crop of understory plant species in ponderosa pine stands in northern Arizona, USA. Forest Ecology and Management, 257, 1656-1662

Actions

This study is summarised as evidence for the following.

Action Category

Thin trees within forests: effects on understory plants

Action Link
Forest Conservation
  1. Thin trees within forests: effects on understory plants

    A replicated, controlled study in 1988-2005 in temperate coniferous forest in Arizona, USA (Sabo et al. 2009) found no effect of thinning on  understory plant biomass. Above ground biomass (kg/ha) of native grasses (unthinned: 600; thinned: 1,100) and forbs (unthinned: 300; thinned: 250) was similar between treatments. No non-native grasses or forbs were found in control or thinned plots. Data were collected in 2005 in 10 plots (20 × 50 m) in each of three unthinned and four thinned (>30% of basal area removed between 1988 and 1995) forest units (20-80 ha).

     

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