Indicators of Effective Mineral Cycle
Indicators of an effective mineral cycle include:- There is a great deal of biological activity at the soil surface
- The soil surface is porous
- Soil is rich in organic matter
- A mature, stable mulch lies on the soil surface
- There is rapid plant material turnover, and no bottlenecks in the process
- Dung is rapidly returned into the soil
- Erosion is minimal
- Minerals are cycling from a full soil profile of both deep and shallow rooted plants
- Grazed plants have strong, healthy root systems
An ineffective mineral cycle is indicated when
- The soil surface is exposed and (usually) capped
- There is low soil organic matter
- Plant material is slow to turnover and disappear so that much old, lignified and oxidising plant material remains standing
- Hard dung remains on the soil surface for many months or even a year or more
- There are many overgrazed, weak plants
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