Length of protected land boundary shared with the organization's protected land as of the end of the reporting period.
Length of Adjacent Protected Land (PI2135)
- Reporting Format Unit of Measure (PD1602)
- Metric Type Metric
- Metric Level Product/Service, Organization
- IRIS Metric Citation IRIS, 2021. Length of Adjacent Protected Land (PI2135). v5.2.
Footnote
Organizations should footnote all assumptions used. See usage guidance for further information.
Usage Guidance
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This metric is intended to capture the length of the boundary of the organization's protected land that is immediately adjacent to already-protected land parcels, thus compounding the total amount of protected land.
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For many conservation objectives, large, connected areas of conserved land are more valuable than small, disconnected pieces of conserved land. This metric helps capture holistically how a specific project complements previous conservation work.
Impact Categories & Themes
SDG Goals & Targets
Clean Water and Sanitation
- SDG Target 6.6
Responsible Consumption and Production
- SDG Target 12.2
Life on Land
- SDG Target 15.1
- SDG Target 15.2
- SDG Target 15.3
- SDG Target 15.4
- SDG Target 15.5
Metric History
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June 2025 - IRIS+ v5.3b Released (current version)
No change.
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December 2024 - IRIS+ v5.3a Released
No change.
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June 2022 - IRIS+ v5.3 Released
Immaterial change. Minor revision to usage guidance for clarity.
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May 2021 - IRIS+ v5.2 Released
No change.
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January 2020 - IRIS+ v5.1 Released
No change.
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May 2019 - IRIS+ v5.0 Released
No change.
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March 2016 - IRIS+ v4.0 Released
Immaterial change. Length of Adjacent Protected Land (PI2135) replaced Protected Land Adjacency (PI2135). Minor revision to metric name and definition language for clarity.
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March 2014 - IRIS+ v3.0 Released
New metric. Protected Land Adjacency (PI2135) was developed via the IRIS Land Conservation Working Group.