Soil pH
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 19 benchmarks together — the OptimalRange form drives the primary score, while 18 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
More significant detrimental impacts on non-alkaline adapted native communities are likely if pH(CaCl₂) rises above 8.0.
Soil pH measured in 0.01 M calcium chloride (CaCl₂) solution, indicating a higher upper pH limit with severe ecological detriments.
Supported by soil science literature indicating nutrient deficiencies and structural problems at high pH.
Sources (1)
Soil Quality Knowledge Base. (n.d.). Soil pH.
View SourceSupporting Sources (4)
Additional references from the underlying research that informed this benchmark.
Agriculture Victoria. (2025). Soil acidity. Farm Management.
View SourceSoil acidity - Department for Environment and Water
View SourceManage soil acidity | EverGraze More livestock from perennials, accessed July 18, 2025,
View SourceProber, S.M., Thiele, K.R. and Lunt, I.D. (2002). Determining reference conditions for management and restoration of temperate grassy woodlands: relationships among trees, topsoils and understorey flora in little-grazed remnants. Australian Journal of Botany, 50(6), 687-697.
View Source