attributed – Peat (organic) Edition (summarises more than 70 categories of the more recognisable – Mineral (soil) Soils are potentially powerful substrate types indicators of aquatic ecosystem – Sand (non-soil) e.g. igneous, dolerite, limestone). dynamics because of the specific • Non-porous morphological features that develop Refer to ASRIS for access to soils – Rock (non-soil) in wet environments impacting data. In some cases access to soil Substrate directly on other system information at the catchment level characteristics (e.g. water quality, is important for providing additional • Clay fauna and vegetation) and can be a contextual information. Such spatial • Sedimentary (chemical/organic) reflection of the physical processes information is generally available • Sedimentary (detrital) occurring within the system (e.g. <>. • Unconsolidated water inflow and water chemistry). Broad categories for soil include • Volcanic peat (organic), mineral (soil) and * The use of soils as an attribute for riverine rock (non-soil). systems is limited due to the lack of soils mapping, and the fact that the surrounding soils do not often The substrate layer refers to match the soils of the riverine system. material lying below the soil layer that shows no pedological development. Its source may be from the parent material of the aquatic habitat or from other processes e.g. aeolian deposition. This attribute is often used as a secondary layer that may be useful in classifying various aquatic systems but is not always available or essential. The substrate layer can play a role in determining vegetation communities, water quality and connectivity with groundwater. Where there is more infrequent wetting on, for example, floodplains, the porosity of the soil/substrate layer may be of importance. Vegetation/fringing vegetation
attributed Soils are potentially powerful indicators of aquatic ecosystem dynamics because of the specific morphological features that develop in wet environments impacting directly on other system characteristics (e.g. water quality, fauna and vegetation) and can be a reflection of the physical processes occurring within the system (e.g. water inflow and water chemistry). Broad categories for soil include peat (organic), mineral (soil) and rock (non-soil). The substrate layer refers to material lying below the soil layer that shows no pedological development. Its source may be from the parent material of the aquatic habitat or from other processes e.g. aeolian deposition. This attribute is often used as a secondary layer that may be useful in classifying various aquatic systems but is not always available or essential. The substrate layer can play a role in determining vegetation communities, water quality and connectivity with groundwater. Where there is more infrequent wetting on, for example, floodplains, the porosity of the soil/substrate layer may be of importance. – Peat (organic) – Mineral (soil) – Sand (non-soil) • Non-porous – Rock (non-soil) Substrate • Clay • Sedimentary (chemical/organic) • Sedimentary (detrital) • Unconsolidated • Volcanic * The use of soils as an attribute for riverine systems is limited due to the lack of soils mapping, and the fact that the surrounding soils do not often match the soils of the riverine system. Edition (summarises more than 70 categories of the more recognisable substrate types e.g. igneous, dolerite, limestone). Refer to ASRIS for access to soils data. In some cases access to soil information at the catchment level is important for providing additional contextual information. Such spatial information is generally available <>. Vegetation/fringing vegetation
ae-toolkit-module-2-anae-classification.docx