Concepts

Register of all vocabulary concepts in this system.

Alternate views of this register are available here


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definition : Abundance of fragments coarser than 2mm in a soil sample, including rock fragments inferred to be not continuous with underlying bedrock, and other fragments such as charcoal,...

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definition : Abundance of discrete segregations that have accumulated in the soil because of the concentration of some constituent, usually by chemical or biological action.

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definition : Accelerated erosion is the more rapid erosion that follows the destruction or loss of protective cover often resulting from people’s influence on the soil, vegetation or lan...

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definition : Horizontal direction to which a mountain slope faces.

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definition : Basal area is the cross-sectional area of all the trees and shrubs at breast height (1.3 m, or nearest point above if there is a deformity at 1.3 m) per hectare (m2/ha).

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definition : The count of individual trunks within the sampling area that meet the size criteria of the basal area factor.

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definition : The aperture or prism factor used to measure basal area.

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definition : Canopy point intercept

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definition : Broad categories of disturbance at a site.

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definition : Drainage is a useful term to summarise local soil wetness conditions; that is, it provides a statement about soil and site drainage likely to occur in most years.

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definition : Dry soil colour described in terms of Munsell or Revised Standard Soil colours.

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definition : Presence/absence or extent of accelerated erosion.

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definition : The definition of soil fabric in Australia is incomplete. The following description is adapted from Northcote (1979). Fabric describes the appearance of the soil material (und...

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definition : Species name determined during the process of field observation

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definition : Form of discrete segregations that have accumulated in the soil because of the concentration of some constituent, usually by chemical or biological action.

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definition : Grade of pedality is the degree of development and distinctness of peds.

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definition : Growth form describes the form or shape of individual plants (e.g. tree, shrub) or Australian broad floristic land cover types (e.g. native vegetation such as mallee, chenopod...

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definition : To describe landforms, the whole land surface is viewed as a mosaic of tiles of odd shapes and sizes. To impose order, the mosaic is treated as if the tiles are of two distinc...

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definition : To describe landforms, the whole land surface is viewed as a mosaic of tiles of odd shapes and sizes. To impose order, the mosaic is treated as if the tiles are of two distinc...

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definition : Lithology of fragments coarser than 2mm in a soil sample, including rock fragments inferred to be not continuous with underlying bedrock, and other fragments such as charcoal,...

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definition : The lithology of the coarse fragments is usually identified as coming from the substrate or from rock outcrop. Where the lithology of the coarse fragments is different from th...

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definition : Depth (m) at which lowest soil sample was taken.

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definition : High numbers of flowers on a tree/shrub or large numbers of trees/shrubs flowering in a population.

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definition : Microrelief refers to relief up to a few metres about the plane of the land surface. It includes gilgai, hummocky, biotic and other microrelief.

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definition : Indication of whether an organism is living (alive) or non-living (dead).

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definition : Dominant vegetation species in lower stratum.

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definition : Dominant vegetation species in mid stratum.

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definition : Dominant vegetation species in upper stratum.

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definition : Mottles are spots, blotches or streaks of subdominant colours different form the matrix colour and different from the colour of the ped surface. The percentage is estimated by...

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definition : Mottles are spots, blotches or streaks of subdominant colours different form the matrix colour and different from the colour of the ped surface. Mottle colour is described in ...

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definition : Mottles are spots, blotches or streaks of subdominant colours different form the matrix colour and different from the colour of the ped surface. Mottle size is measured along ...

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definition : Nature of discrete segregations that have accumulated in the soil because of the concentration of some constituent, usually by chemical or biological action.

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definition : The lithology of the coarse fragments is usually identified as coming from the substrate or from rock outcrop. Where the lithology of the coarse fragments is different from th...

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definition : Height of the plant described as the distance between the soil and the plant canopy, recorded at the uppermost height at which the laser beam intersects with a plant.

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definition : The plot selection process involves four stages. The first three are desktop exercises based on available datasets and the fourth occurs in the field. • Stages 1 and 2 – stra...
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definition : Species name identified by federating the locally applicable species concept determined in the field or by a taxonomic expert with the national taxonomy.

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definition : Dominant vegetation species in lower stratum.

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definition : Dominant vegetation species in mid stratum.

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definition : Dominant vegetation species in upper stratum.

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definition : Shape of fragments coarser than 2mm in a soil sample, including rock fragments inferred to be not continuous with underlying bedrock, and other fragments such as charcoal, she...

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definition : The scale adopted employs class boundaries at (2 × 10n/2) mm, where n is an integer. This system is an extension of that used for particles smaller than 2 mm both in the sche...

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definition : Size of fragments coarser than 2mm in a soil sample, including rock fragments inferred to be not continuous with underlying bedrock, and other fragments such as charcoal, shel...

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definition : Size of discrete segregations that have accumulated in the soil because of the concentration of some constituent, usually by chemical or biological action.

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definition : Slope tangent expressed as a percentage.

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definition : Soil mass per unit volume.

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definition : Soil mass per unit volume.

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definition : Effervescence of carbonate in fine earth using two or three drops of 1-molar HCl.

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definition : A soil horizon is a layer of soil approximately parallel to the land surface with morphological properties different from layers below and/or above it. Horizons can be describ...

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definition : Soil pH is a measure of the acidity or basicity (alkalinity) of a soil. The soil pH is determined in the field using a field pH kit based on the specifications of Raupach and ...

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definition : Condition fo the surface soil when dry.

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definition : Soil texture is determined by the size distribution of mineral particles finer than 2 mm; that is, only material that will pass a 2 mm sieve should be used in determination of...

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definition : Each of the clay field texture grades may also be modified according to the sand or silt fractions, where K is coarse sandy, S is medium sandy, F is fine sandy and Z is si...

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definition : The non-clay field texture grades (clay loams and coarser) may be qualified according to whether they are at, or near, the light (lower clay content) or heavy (higher clay con...

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definition : The state of erosion can be active, stabilised or partly stabilised.

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definition : Uppermost ground surface layer material

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definition : Dominant vegetation species in lower stratum.

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definition : Dominant vegetation species in mid stratum.

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definition : Dominant vegetation species in upper stratum.

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definition : Depth (m) at which upper soil sample was taken.

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definition : The condition of the vegetation at a plot. Categories are 1. BurntN=no regeneration, 2.BurntR=regenerating, 3.Active vegetative growth, 4.Flowering/fruiting, 5.Dry

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definition : Volume is the quantity of three-dimensional space enclosed by some closed boundary, for example, the space that a substance (solid, liquid, gas, or plasma) or shape occupies o...

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definition : Wet soil colour described in terms of Munsell or Revised Standard Soil colours.