Sow seeds of tree species in savanna

How is the evidence assessed?
  • Effectiveness
    not assessed
  • Certainty
    not assessed
  • Harms
    not assessed

Study locations

Key messages

  • One study examined the effects of sowing seeds of tree species in savanna on grassland vegetation. The study was in Brazil.





  • Germination/Emergence (1 study): One replicated study in Brazil found that sowing tree seeds in savanna resulted in germination of 52% of the tree seeds.
  • Survival (1 study): One replicated study in Brazil found that after sowing tree seeds in savanna, 35% of the seeds produced seedlings that survived for more than two years.

About key messages

Key messages provide a descriptive index to studies we have found that test this intervention.

Studies are not directly comparable or of equal value. When making decisions based on this evidence, you should consider factors such as study size, study design, reported metrics and relevance of the study to your situation, rather than simply counting the number of studies that support a particular interpretation.

Supporting evidence from individual studies

  1. A replicated study in 2010–2012 in an arable field in Brazil (Silva et al. 2015) found that over half of tree seeds sown germinated but fewer than half of seeds resulted in trees which survived for more than two years. After 42 days, 3,200 of the 6,180 tree seeds sown had germinated. After 780 days, 2,144 seedlings of the 3,200 that had germinated were alive. In November 2010, tree seeds of six species were sown in rows one metre apart resulting in 6,180 sown seeds. Seedling germination and survival was recorded for each plant after 42, 84, 126, 217, 398 and 780 days. This experiment was also part of a study testing the effect of fertilizer and plant cover on seedling germination and growth.

    Study and other actions tested
Please cite as:

Martin, P.A., Ockendon, N., Berthinussen, A, Smith, R.K. and Sutherland W.J. (2021) Grassland Conservation: Global evidence for the effects of selected interventions. Conservation Evidence Series Synopses. University of Cambridge, Cambridge, UK.

Where has this evidence come from?

List of journals searched by synopsis

All the journals searched for all synopses

Grassland Conservation

This Action forms part of the Action Synopsis:

Grassland Conservation
Grassland Conservation

Grassland Conservation - Published 2021

Grassland Synopsis

What Works 2021 cover

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