EcoService Models Library (ESML)
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Variables Details
: (EM-658)
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EM-658 | |
Document Author
variable.detail.emDocumentAuthorHelp
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Jackson, B., T. Pagella, F. Sinclair, B. Orellana, A. Henshaw, B. Reynolds, N. Mcintyre, H. Wheater, and A. Eycott |
Document Year
variable.detail.emDocumentYearHelp
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2013 |
Above ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Below ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Critical slope cut-off for moderately productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. Additional critical slope cut-off values can be established. |
Critical slope cut-off for very productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. |
Cutoff cost at which dispersal across hostile terrain is considered zero ?Comment:The value for this variable is determined by the class variable; Species of interest. |
Deadwood biomass ?Comment:Values determined by class variable: Vegetation class. |
Litter biomass ?Comment:Values determined by class variable: Vegetation class. |
Minimum patch size considered to be of value (habitats of interest) ?Comment:The value for this variable is determined by the class variable; Habitats of interest. |
Soil Carbon ?Comment:Values determined by class variable: Soil type. |
Soil drainage ?Comment:The values for this variable are dependent on the class variable: Soil type. Soil drainage classifications are dataset-specific and can also be regionally specific. Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Soil fertility ?Comment:Values for this variable are determined by the class variable: Soil type. Fertility productivity classifications are dataset-specific and can also be regionally specific (for example, nutrient-poor soils might still be considered of high value in a “low” fertility region). Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Threshold compound topographic index ?Comment:In addition to the topographic controls represented by the CTI, the probability of soil erosion occurring at a particular location is also dependent on factors such as soil and vegetation characteristics (Morgan, 2005). These influences are represented in Polyscape through the use of user-defined critical, or threshold, CTI values. These can be empirically defined for a particular region, soil type, crop combination, etc., on the basis of local knowledge, field observations or aerial photography (cf. Thorne & Zevenbergen, 1990), or through the use of values derived for comparable sites. |
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Variable ID
variable.detail.varIdHelp
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15448 | 15449 | 15456 | 15455 | 15435 | 15450 | 15451 | 15433 | 15454 | 15457 | 15458 | 15445 |
Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | |
Qualitative-Quantitative
variable.detail.continuousCategoricalHelp
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Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) | Quantitative (Cardinal Only) |
Cardinal-Ordinal
variable.detail.cardinalOrdinalHelp
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Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal | Cardinal |
kg ha^-1 | kg ha^-1 | degrees | degrees | Not reported | kg ha^-1 | kg ha^-1 | Not reported | kg ha^-1 | Not reported | Not reported | m |
Above ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Below ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Critical slope cut-off for moderately productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. Additional critical slope cut-off values can be established. |
Critical slope cut-off for very productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. |
Cutoff cost at which dispersal across hostile terrain is considered zero ?Comment:The value for this variable is determined by the class variable; Species of interest. |
Deadwood biomass ?Comment:Values determined by class variable: Vegetation class. |
Litter biomass ?Comment:Values determined by class variable: Vegetation class. |
Minimum patch size considered to be of value (habitats of interest) ?Comment:The value for this variable is determined by the class variable; Habitats of interest. |
Soil Carbon ?Comment:Values determined by class variable: Soil type. |
Soil drainage ?Comment:The values for this variable are dependent on the class variable: Soil type. Soil drainage classifications are dataset-specific and can also be regionally specific. Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Soil fertility ?Comment:Values for this variable are determined by the class variable: Soil type. Fertility productivity classifications are dataset-specific and can also be regionally specific (for example, nutrient-poor soils might still be considered of high value in a “low” fertility region). Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Threshold compound topographic index ?Comment:In addition to the topographic controls represented by the CTI, the probability of soil erosion occurring at a particular location is also dependent on factors such as soil and vegetation characteristics (Morgan, 2005). These influences are represented in Polyscape through the use of user-defined critical, or threshold, CTI values. These can be empirically defined for a particular region, soil type, crop combination, etc., on the basis of local knowledge, field observations or aerial photography (cf. Thorne & Zevenbergen, 1990), or through the use of values derived for comparable sites. |
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Predictor-Intermediate-Response
variable.detail.displayVariableTypeHelp
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Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor |
Predictor Variable Type
variable.detail.displayPredictorVariableTypeHelp
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Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter | Constant or Parameter |
Response Variable Type
variable.detail.resClassHelp
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Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable |
Data Source/Type
variable.detail.dataTypeHelp
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Derived from a look-up table | Derived from a look-up table | Obtained by Best Professional Judgment | Obtained by Best Professional Judgment |
Other or unclear (comment) ?Comment:Source was not reported |
Derived from a look-up table | Derived from a look-up table |
Other or unclear (comment) ?Comment:Source not reported in paper. |
Derived from a look-up table | Map or database (e.g., wide coverage, wide availability, measured or modeled) | Map or database (e.g., wide coverage, wide availability, measured or modeled) |
Transferred Values (e.g., from literature; transferred spatially, temporally or across scales) ?Comment:The values for this variable can be determined using different methods. |
Variable Classification Hierarchy
variable.detail.vchLevel1Help
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5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
5. Ecosystem Attributes and Potential Supply of Ecosystem Goods and Services |
2. Land Surface (or Water Body) Cover, Use, Substrate, or Metric |
--Biomass, litter or residue characteristics |
--Biomass, litter or residue characteristics |
--Geographic position, horizontal or vertical |
--Geographic position, horizontal or vertical |
--Biological characteristics, processes or requirements of living ecosystem components |
--Biomass, litter or residue characteristics |
--Biomass, litter or residue characteristics |
--Ecosystem- or landscape-level metrics or indices of ecological condition, rarity or vulnerability |
--Chemical (C, N, P, sediment/particulate) characteristics of ecosystem components |
--Physical/chemical characteristics of nonliving ecosystem components |
--Physical/chemical characteristics of nonliving ecosystem components |
--Geographic position, horizontal or vertical |
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----Mass or quantity of biomass, litter or residue |
----Mass or quantity of biomass, litter or residue |
----Slope, roughness, ruggedness |
----Slope, roughness, ruggedness |
----Biological characteristics, processes or requirements of fauna |
----Mass or quantity of biomass, litter or residue |
----Mass or quantity of biomass, litter or residue |
----Forest condition, rarity or vulnerability |
----Carbon-related characteristics of ecosystem components |
----Physical/chemical characteristics of soils, substrates, rocks |
----Physical/chemical characteristics of soils, substrates, rocks |
----Other, multiple, unspecified or unclear |
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------Other, multiple, unspecified or unclear |
------Carbon presence (in terrestrial or aquatic ecosystem components) |
------Soil hydrologic characteristics |
------Soil chemistry, composition, and characteristics (non-contaminants) |
Above ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Below ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Critical slope cut-off for moderately productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. Additional critical slope cut-off values can be established. |
Critical slope cut-off for very productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. |
Cutoff cost at which dispersal across hostile terrain is considered zero ?Comment:The value for this variable is determined by the class variable; Species of interest. |
Deadwood biomass ?Comment:Values determined by class variable: Vegetation class. |
Litter biomass ?Comment:Values determined by class variable: Vegetation class. |
Minimum patch size considered to be of value (habitats of interest) ?Comment:The value for this variable is determined by the class variable; Habitats of interest. |
Soil Carbon ?Comment:Values determined by class variable: Soil type. |
Soil drainage ?Comment:The values for this variable are dependent on the class variable: Soil type. Soil drainage classifications are dataset-specific and can also be regionally specific. Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Soil fertility ?Comment:Values for this variable are determined by the class variable: Soil type. Fertility productivity classifications are dataset-specific and can also be regionally specific (for example, nutrient-poor soils might still be considered of high value in a “low” fertility region). Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Threshold compound topographic index ?Comment:In addition to the topographic controls represented by the CTI, the probability of soil erosion occurring at a particular location is also dependent on factors such as soil and vegetation characteristics (Morgan, 2005). These influences are represented in Polyscape through the use of user-defined critical, or threshold, CTI values. These can be empirically defined for a particular region, soil type, crop combination, etc., on the basis of local knowledge, field observations or aerial photography (cf. Thorne & Zevenbergen, 1990), or through the use of values derived for comparable sites. |
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Spatial Extent Area
variable.detail.spExtentHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Spatially Distributed?
variable.detail.spDistributedHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Observations Spatially Patterned?
variable.detail.regularSpGrainHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Spatial Grain Type
variable.detail.spGrainTypeHelp
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Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables | Not recorded for Constant or Paarameter Variables |
Spatial Grain Size
variable.detail.spGrainSizeHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Spatial Density
variable.detail.spDensityHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
EnviroAtlas URL
variable.detail.enviroAtlasURLHelp
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Above ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Below ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Critical slope cut-off for moderately productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. Additional critical slope cut-off values can be established. |
Critical slope cut-off for very productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. |
Cutoff cost at which dispersal across hostile terrain is considered zero ?Comment:The value for this variable is determined by the class variable; Species of interest. |
Deadwood biomass ?Comment:Values determined by class variable: Vegetation class. |
Litter biomass ?Comment:Values determined by class variable: Vegetation class. |
Minimum patch size considered to be of value (habitats of interest) ?Comment:The value for this variable is determined by the class variable; Habitats of interest. |
Soil Carbon ?Comment:Values determined by class variable: Soil type. |
Soil drainage ?Comment:The values for this variable are dependent on the class variable: Soil type. Soil drainage classifications are dataset-specific and can also be regionally specific. Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Soil fertility ?Comment:Values for this variable are determined by the class variable: Soil type. Fertility productivity classifications are dataset-specific and can also be regionally specific (for example, nutrient-poor soils might still be considered of high value in a “low” fertility region). Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Threshold compound topographic index ?Comment:In addition to the topographic controls represented by the CTI, the probability of soil erosion occurring at a particular location is also dependent on factors such as soil and vegetation characteristics (Morgan, 2005). These influences are represented in Polyscape through the use of user-defined critical, or threshold, CTI values. These can be empirically defined for a particular region, soil type, crop combination, etc., on the basis of local knowledge, field observations or aerial photography (cf. Thorne & Zevenbergen, 1990), or through the use of values derived for comparable sites. |
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Temporal Extent
variable.detail.tempExtentHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Temporally Distributed?
variable.detail.tempDistributedHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Regular Temporal Grain?
variable.detail.regularTempGrainHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Temporal Grain Size Value
variable.detail.tempGrainSizeValHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Temporal Grain Size Units
variable.detail.tempGrainSizeUnitHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Temporal Density
variable.detail.tempDensityHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Above ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Below ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Critical slope cut-off for moderately productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. Additional critical slope cut-off values can be established. |
Critical slope cut-off for very productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. |
Cutoff cost at which dispersal across hostile terrain is considered zero ?Comment:The value for this variable is determined by the class variable; Species of interest. |
Deadwood biomass ?Comment:Values determined by class variable: Vegetation class. |
Litter biomass ?Comment:Values determined by class variable: Vegetation class. |
Minimum patch size considered to be of value (habitats of interest) ?Comment:The value for this variable is determined by the class variable; Habitats of interest. |
Soil Carbon ?Comment:Values determined by class variable: Soil type. |
Soil drainage ?Comment:The values for this variable are dependent on the class variable: Soil type. Soil drainage classifications are dataset-specific and can also be regionally specific. Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Soil fertility ?Comment:Values for this variable are determined by the class variable: Soil type. Fertility productivity classifications are dataset-specific and can also be regionally specific (for example, nutrient-poor soils might still be considered of high value in a “low” fertility region). Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Threshold compound topographic index ?Comment:In addition to the topographic controls represented by the CTI, the probability of soil erosion occurring at a particular location is also dependent on factors such as soil and vegetation characteristics (Morgan, 2005). These influences are represented in Polyscape through the use of user-defined critical, or threshold, CTI values. These can be empirically defined for a particular region, soil type, crop combination, etc., on the basis of local knowledge, field observations or aerial photography (cf. Thorne & Zevenbergen, 1990), or through the use of values derived for comparable sites. |
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Not reported | Not reported |
Not reported ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. |
Not reported ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. |
Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported |
m ?Comment:Areas of “opportunity for change” have CTI values (see Section 2.3 for definition) exceeding 10 m, while areas of “high opportunity for change” have CTI values exceeding 50 m. These thresholds were selected on the basis of empirically derived critical CTI values presented in Parker et al. (2010). |
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Min Value
variable.detail.minEstHelp
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Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported |
Max Value
variable.detail.estHelp
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Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | 50 |
Other Value Type
variable.detail.natureOtherEstHelp
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Not applicable | Not applicable | Single Observation or Parameter Value | Single Observation or Parameter Value | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Not applicable | Single Observation or Parameter Value |
Other Value
variable.detail.otherEstHelp
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Not reported | Not reported | 15 | 5 | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | Not reported | 10 |
Above ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Below ground biomass ?Comment:Values determined by class variable: Vegetation class. |
Critical slope cut-off for moderately productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. Additional critical slope cut-off values can be established. |
Critical slope cut-off for very productive land ?Comment:The value reported here is the default value for this variable. However, the user can specify other slope threshold values. Appropriate threshold values will change according to region, and according to quality/resolution of the DEM. |
Cutoff cost at which dispersal across hostile terrain is considered zero ?Comment:The value for this variable is determined by the class variable; Species of interest. |
Deadwood biomass ?Comment:Values determined by class variable: Vegetation class. |
Litter biomass ?Comment:Values determined by class variable: Vegetation class. |
Minimum patch size considered to be of value (habitats of interest) ?Comment:The value for this variable is determined by the class variable; Habitats of interest. |
Soil Carbon ?Comment:Values determined by class variable: Soil type. |
Soil drainage ?Comment:The values for this variable are dependent on the class variable: Soil type. Soil drainage classifications are dataset-specific and can also be regionally specific. Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Soil fertility ?Comment:Values for this variable are determined by the class variable: Soil type. Fertility productivity classifications are dataset-specific and can also be regionally specific (for example, nutrient-poor soils might still be considered of high value in a “low” fertility region). Default parameterisations are provided for national data in the UK (National Soil Resources Institute) and in NZ (NZ Land Resource Inventory), and the user is able to adjust these as required. For other regions, users can input tables with their own classifications of soils and then run the tool. |
Threshold compound topographic index ?Comment:In addition to the topographic controls represented by the CTI, the probability of soil erosion occurring at a particular location is also dependent on factors such as soil and vegetation characteristics (Morgan, 2005). These influences are represented in Polyscape through the use of user-defined critical, or threshold, CTI values. These can be empirically defined for a particular region, soil type, crop combination, etc., on the basis of local knowledge, field observations or aerial photography (cf. Thorne & Zevenbergen, 1990), or through the use of values derived for comparable sites. |
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Variability Expression Given?
variable.detail.variabilityExpHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Variability Metric
variable.detail.variabilityMetricHelp
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None | None | None | None | None | None | None | None | None | None | None | None |
Variability Value
variable.detail.variabilityValueHelp
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None | None | None | None | None | None | None | None | None | None | None | None |
Variability Units
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None | None | None | None | None | None | None | None | None | None | None | None |
Resampling Used?
variable.detail.bootstrappingHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Variability Expression Used in Modeling?
variable.detail.variabilityUsedHelp
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Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables | Not recorded for Constant or Parameter Variables |
Variable ID
variable.detail.varIdHelp
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Validated?
variable.detail.resValidatedHelp
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Validation Approach (within, between, etc.)
variable.detail.validationApproachHelp
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Validation Quality (Qual/Quant)
variable.detail.validationQualityHelp
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Validation Method (Stat/Deviance)
variable.detail.validationMethodHelp
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Validation Metric
variable.detail.validationMetricHelp
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Validation Value
variable.detail.validationValHelp
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Validation Units
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Use of Measured Response Data
variable.detail.measuredResponseDataHelp
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