Action

Add lime to the soil to increase fertility

How is the evidence assessed?
  • Effectiveness
    80%
  • Certainty
    18%
  • Harms
    0%

Source countries

Key messages

  • One replicated, randomized controlled study in the USA found that adding lime increased vegetation cover.

 

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, randomized, controlled study in 1991-1995 in a degraded temperate coniferous forest in Idaho, USA (Walsh & Redente 2011) found that adding lime to the soil before restoration planting increased total plant cover. Total plant cover was higher in lime addition (38-40%) than control plots (17-23%). Control and lime addition treatments (at 11,000 kg/ha ) were each applied in 1991 to eight plots (3 × 10 m) at each of two hilltop sites. All plots were fertilized with nitrogen, phosphorus and potassium at 112, 56 and 90 kg/ha respectively. Plots were planted with western white pine Pinus monticola trees, shrubs and grasses before treatments in 1991. Data were collected in 1995.

    Study and other actions tested
Please cite as:

Agra H., Schowanek S., Carmel Y., Smith R.K. & Ne’eman G. (2019) Forest Conservation. Pages 331-347 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2019. Open Book Publishers, Cambridge, UK.

 

Where has this evidence come from?

List of journals searched by synopsis

All the journals searched for all synopses

Forest Conservation

This Action forms part of the Action Synopsis:

Forest Conservation
Forest Conservation

Forest Conservation - Published 2016

Forest synopsis

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.

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