Soil nutrient build up
Soil fertility refers to the quantity and balance of soil nutrients available to plants for growth. Soil nutrients are divided into macro- and micronutrient categories depending on the quantities required by the plant. Important macronutrients include: nitrogen, phosphorus, calcium, magnesium, sulphur, carbon, oxygen and hydrogen. Important micronutrients include: boron, manganese, copper, iron, molybdenum, zinc, cobalt, chlorine and silicon.
Suggested indicator: Soil chemistry+
Soil nutrient build-up may be associated with:
|Potential associated impacts||Suggested indicators+|
|Improved soil fertility and subsequent increase in plant growth|
|Increased soil biota||
If soil nutrients build-up to excessive levels:
|Potential associated impacts||Suggested indicators|
|Change in soil pH|
Heavy metal toxicity adversely affecting vegetation health, resulting in:
Increased potential for soil nutrient leaching following rainfall or irrigation, which may lead to:
+ Descriptions of indicators (PDF, 76K)* provides a brief description of each indicator including techniques and purpose.
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Last updated 7 September 2010