Site>Management

Management


Type:Blank Node


The historical and current management of a Site. Used to represent land use and land cover history, crop rotations, aquaculture rotations, and historical and future production practices. Each Management blank node must be unique, and the fields which determine uniqueness are defined in the management field of the Site.


FieldTypeRequiredDefinition
term
TermYes

A reference to the Term describing the Site Management.

This field has additional validation rules when set:

  • the term.termType must have one of the following values: cropResidueManagement, landCover, landUseManagement, pastureManagement, standardsLabels, system, tillage, waterRegime.

description
stringNo

A description of the Management.

value
number|booleanNo

The value associated with the Management Term.

distribution
array[number]No

An array of up to 1000 random samples from the posterior distribution of value

sd
numberNo

The standard deviation of value.

min
numberNo

The minimum of value.

max
numberNo

The maximum of value.

statsDefinition
stringNo

What the descriptive statistics (sd, min, max, and value) are calculated across, or whether they are simulated or the output of a model. spatial refers to descriptive statistics calculated across spatial units (e.g., pixels) within a region or country. time refers to descriptive statistics calculated across units of time (e.g., hours).

Possible values are: sites, cycles, impactAssessments, replications, animals, other observations, time, spatial, regions, simulated, modelled

observations
integerNo

The number of observations the descriptive statistics are calculated over.

startDate
stringNo

The start date of this Site Management in ISO 8601 format (YYYY-MM-DD, YYYY-MM, or YYYY).

endDate
stringYes

The end date of this Site Management in ISO 8601 format (YYYY-MM-DD, YYYY-MM, or YYYY).

methodClassification
stringNo

A classification of the method used to acquire or estimate the term and percentArea. Overrides the defaultMethodClassification specified in the Site.

  • physical measurement means the amount is quantified using weighing, volume measurement, metering, chemical methods, or other physical approaches.
  • verified survey data means the data are initially collected through surveys; all or a subset of the data are verified using physical methods; and erroneous survey data are discarded or corrected.
  • non-verified survey data means the data are collected through surveys that have not been subjected to verification.
  • modelled means a previously calibrated model is used to estimate this data point from other data points describing this Cycle.
  • estimated with assumptions means a documented assumption is used to estimate this data point from other data points describing this Cycle.
  • consistent external sources means the data are taken from external datasets referring to different producers/enterprises:
    • Using the same technology (defined as the same System or the same key Practices as those specified in the Cycle);
    • At the same date (defined as occurring within the startDate and endDate of the Cycle); and
    • In the same region or country.
    Modelling or assumptions may have also been used to transform these data.
  • inconsistent external sources means the data are taken from external datasets referring to different producers/enterprises:
    • Using a different technology (defined as a different System or using different key Practices to those specified in the Cycle);
    • At a different date (defined as occurring within the startDate and endDate of the Cycle); or
    • In a different region or country.
    Modelling or assumptions may have also been used to transform these data.
  • expert opinion means the data have been estimated by experts in the field.
  • unsourced assumption means the data do not have a clear source and/or are based on assumptions only.

Possible values are: physical measurement, verified survey data, non-verified survey data, modelled, estimated with assumptions, consistent external sources, inconsistent external sources, expert opinion, unsourced assumption

This field has additional validation rules when set:

  • methodClassificationDescription must also be set.

methodClassificationDescription
stringNo

A justification of the methodClassification used. If the data were estimated with assumptions this field should also describe the assumptions. This is a required field if methodClassification is specified.

model
TermNo

A reference to the Term describing the model used to estimate these data.

modelDescription
stringNo

A free text field, describing the model used to estimate these data.

source
SourceNo

A reference to the Source of these data, if different from the defaultSource of the Cycle or Site.

otherSources
List[Source]No

A list of references to any other sources of these data.

properties
List[Property]No

A list of Properties which can be assigned to the Management Term.

properties cannot be duplicated. The following fields determine whether a Property is unique: term.@id, key.@id, date, startDate, endDate


Internal Properties

The following properties are automatically set when data are uploaded to the HESTIA platform. If they are included in a file which is uploaded, they will be overwritten.

FieldTypeDefinition
@context

The location of the JSON-LD context file.

@id

The unique ID assigned to the Node by HESTIA.

@type

Management

percentile10th
number

The 10th percentile of value.

percentile90th
number

The 90th percentile of value.

schemaVersion
string

The version of the schema when these data were created.

added
array[string]

A list of fields that have been added to the original dataset.

addedVersion
array[string]

A list of versions of the model used to add these fields.

updated
array[string]

A list of fields that have been updated on the original dataset.

updatedVersion
array[string]

A list of versions of the model used to update these fields.

aggregated
array[string]

A list of fields that have been 'aggregated' using data from multiple Sites.

aggregatedVersion
array[string]

A list of versions of the aggregation engine corresponding to each aggregated field.


Example 1

{
  "@type": "Management",
  "term": {
    "@id": "animalManureUsed",
    "@type": "Term",
    "name": "Animal manure used",
    "units": "boolean",
    "termType": "landUseManagement"
  },
  "value": true,
  "startDate": "2015",
  "endDate": "2022"
}

Example 2

{
  "@type": "Management",
  "term": {
    "@id": "forest",
    "@type": "Term",
    "name": "Forest",
    "termType": "landCover"
  },
  "value": 5.9,
  "startDate": "1990-01-01",
  "endDate": "1990-12-31"
}

Example 3

{
  "@type": "Management",
  "term": {
    "@id": "fullTillage",
    "@type": "Term",
    "name": "Full tillage",
    "units": "% area",
    "termType": "tillage"
  },
  "value": 42,
  "startDate": "1990",
  "endDate": "2005"
}