# Land Cover Classification & Ecosystem Typologies {% hint style="info" %} The [BASIN Ecosystems](/core-benefits/core-benefits-framework/stocks-ecosystems.md) land cover and ecosystem typology and [RealValue](/realvalue/why-put-a-value-on-nature.md) was built based on the process and supporting materials found in this Appendix. {% endhint %} We evaluated [27 primary source](https://docs.google.com/spreadsheets/d/e/2PACX-1vQwj56Qg699KpORHt_jm3YA43PAvEbwJuETykHpRhxM7YQ0ErbGIKcPZ0bc0a6R3mQlLx4rDGNTPCSy/pubhtml?gid=1103807035\&single=true) Land Cover and Ecosystem Typologies, focusing on their relevance to Ecosystem Service Valuation (ESV), real assets, and corporate financial and Environmental, Social, and Governance (ESG) disclosures. From these, we selected the 7 typologies that are most applicable to our specific use case, giving additional weight to IUCN GET 2.0, ESVD, and FEMA ESV. These were prioritized because they are either based on seminal environmental assessments and frameworks (e.g., Millennium Ecosystem Assessment, TEEB, IUCN Red Lists) or specifically designed to facilitate Ecosystem Services Valuation. The selected data was cross-referenced to develop the **BASIN Ecosystems** which identifies fourteen distinct ecosystem types. ### Cross Reference Table {% embed url="" fullWidth="true" %} Source: [BASIN RealValue Worksheet - PUBLIC](https://docs.google.com/spreadsheets/d/1-Ho1C5J2TCFnSJnkSbNXvBldMIUZGZyll3e6kSwazT4/edit?usp=sharing) {% endembed %} ## Scope and Methodological Notes Our research primarily targets terrestrial restoration and conservation, deliberately setting aside open and deep-sea ecosystems. Although our scope is land-centric, the RealValue model's techniques are adaptable to marine environments. For more specialized marine ecosystem valuations, please consult the [BlueValue](https://www.bluevalue.org/) database. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.basin.global/appendix/land-cover-classification-and-ecosystem-typologies.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.