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 10 benchmarks together — the OptimalRange form drives the primary score, while 9 guard(s) constrain the result.
Evidence & Context
Caution is advised against raising soil pH(CaCl₂) significantly above 7.0, due to potential nutrient imbalances and negative ecosystem changes.
Soil pH measured in 0.01M calcium chloride solution (pH(CaCl₂)) indicating the upper limit beyond which ecological or agricultural harm may occur.
This benchmark marks a potential upper detrimental soil pH threshold beyond which nutrient imbalances and ecosystem harm may occur.
Based on ecological observations and general soil science principles indicating risks above pH 7.0.
Sources (1)
Grains Research and Development Corporation (GRDC). (2016). GrowNote Wheat South 05 Nutrition.
View SourceSupporting Sources (1)
Additional references from the underlying research that informed this benchmark.
McIntyre, S., Stol, J., Harvey, J., Nicholls, A.O., Campbell, M., Reid, A., Manning, A.D. & Lindenmayer, D. (2010). Biomass and floristic patterns in the ground layer vegetation of box-gum grassy eucalypt woodland in Goorooyarroo and Mulligans Flat Nature Reserves, Australian Capital Territory. Cunninghamia 11(3): 319–357.
View Source