Study

Composition and diversity of woody vegetation in silvicultural openings of southern Indiana forests

  • Published source details Jenkins M.A. & Parker G.R. (1998) Composition and diversity of woody vegetation in silvicultural openings of southern Indiana forests. Forest Ecology and Management, 109, 57-74.

Actions

This study is summarised as evidence for the following.

Action Category

Use clearcutting to increase understory diversity

Action Link
Forest Conservation
  1. Use clearcutting to increase understory diversity

    A replicated, randomized, controlled study in 1993-1995 in temperate broadleaf forest in Indiana, USA (Jenkins & Parker 1998) found that cutting treatments increased species richness of tree saplings but not of small seedlings, and had mixed effects on mature tree species richness. Species richness (in 100 m2 plot) of saplings (>1 m tall, <3 cm DBH) was higher in recent clearcut (8.7-9.1) and group cut (7.8-8.5) than in uncut plots (2.3-3.3), but similar to uncut plots for old clearcut ((4.9-6.1), old group cut (3.0-5.0), recent single tree cut (4.7-5.6) and old single tree cut plots (2.1-2.7). Species richness of seedlings (<1 m tall) was similar between treatments (7.2-11.6).  Species richness of mature trees (>3 cm DBH) was higher in old clearcut plots (10.4-10.7) and lower in single tree cut plots (recent single tree: 2.7-3.2; old single tree: 2.7-2.8) compared with uncut plots (6.8-7.3), but similar to uncut plots for recent clearcut (7.6-9.6), recent group cut (5.9-6.5) and old group cut (6.0-6.6). Species richness was calculated in a 100 m2 plot in each of 37 clearcutting, 45 group selection (cutting in groups, 0.1-1.6 ha) and 44 single tree selection cuts (cutting single trees, 0.005-0.012 h), recent (7-15 years) and old (16-27 years) treatment units and in 24 uncut plots (uncut >80 years).

     

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