Study

Does restoration enhance regeneration of seasonal deciduous forests in pastures in central Brazil?

  • Published source details Sampaio A.B., Holl K.D. & Scariot A. (2007) Does restoration enhance regeneration of seasonal deciduous forests in pastures in central Brazil? Restoration Ecology, 15, 462-471

Actions

This study is summarised as evidence for the following.

Action Category

Add organic matter

Action Link
Forest Conservation

Plant a mixture of tree species to enhance diversity

Action Link
Forest Conservation

Sow tree seeds

Action Link
Forest Conservation

Use soil scarification or ploughing to enhance germination

Action Link
Forest Conservation
  1. Add organic matter

    A replicated, randomized, controlled, before-and-after study in 2004-2005 in subtropical forest in Brazil (Sampaio, Holl & Scariot 2007) found that addition of leaf litter increased species richness, but had no effect on the density of new trees. The change (after minus before) in number of species was higher in litter addition (litter addition: 1; control: 0/plot), while the change in new tree density was similar (litter addition: 1,000; control: 1,000/ha). Data were collected immediately before (January 2004) and one year after treatment (March 2005) in four replicates of adjacent control and leaf litter addition (about 10 cm of dry leaves) plots (10 × 10 m).

     

  2. Plant a mixture of tree species to enhance diversity

    A replicated, randomized, controlled before-and-after study in 2004-2005 in subtropical forest in Brazil (1) found that planting increased species richness, but had no effect on the density of new trees. The change (after minus before) in number of species was higher in planted plots (planted: 10; unplanted: 0/plot), while the change in stem density was similar between treatments (planted: 1,000; unplanted: 1,000/ha). Data were collected immediately before (January 2004) and one year after treatment (March 2005) in four replicates of adjacent unplanted control and planted (42 seedlings of 18 tree species) plots (10 × 10 m).

     

  3. Sow tree seeds

    A replicated, randomized, controlled, before-and-after study in 2004-2005 in subtropical forest in Brazil (Sampaio, Holl & Scariot 2007) found that sowing tree seeds increased the density and species richness of new trees. The increase in stem density (seeded: 2,000/ha; unseeded: 1,000) and number of species/plot (seeded: 3; unseeded: 0) was higher in seeded plots. Data were collected immediately before (January 2004) and one year after treatment (March 2005) in four replicates of adjacent unseeded control and seeded (ten tree species) plots (10 × 10 m).

     

  4. Use soil scarification or ploughing to enhance germination

    A replicated, randomized, controlled, before-and-after study in 2004-2005 in subtropical forest in Brazil (Sampaio, Holl & Scariot 2007) found that ploughing decreased the density of young trees and had no effect on species richness of new trees. The change (after minus before) in young tree density was more negative in ploughed plots (ploughing: -4,000; control: 1,000/ha). The number of species/plot (ploughing: -2; control: 0) was similar between treatments. Data were collected immediately before (January 2004) and one year after treatment (March 2005) in four replicates of adjacent control and ploughing (to a 10 cm depth) plots (10 × 10 m).

     

Output references

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, terrestrial mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 17

Go to the CE Journal

Subscribe to our newsletter

Please add your details if you are interested in receiving updates from the Conservation Evidence team about new papers, synopses and opportunities.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape Programme Red List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Bern wood Supporting Conservation Leaders National Biodiversity Network Sustainability Dashboard Frog Life The international journey of Conservation - Oryx British trust for ornithology Cool Farm Alliance UNEP AWFA Butterfly Conservation People trust for endangered species Vincet Wildlife Trust