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Historical Green Change Analysis

Wigger Tims
Expert Nature & Landscape

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Wigger Tims
Expert Nature & Landscape

See how green evolves. Steer with insight.

Understand how trees and green structures have changed over time.
From loss to growth, from data to policy action.

You can’t manage what you don’t track over time.

Governments are setting ambitious goals for nature, forests and biodiversity.

But:

  • Historical insight into tree and green development is limited
  • Data is often fragmented or inconsistent
  • It is unclear where trees are lost or gained
  • Trends are difficult to quantify

This creates key challenges:

  • Are we actually increasing green areas?
  • Where does tree loss occur?
  • Is planting compensating for removal?
  • Are we meeting national or European targets?

Without historical insight, policy lacks direction and accountability.

From snapshots to long-term insight.

Terramira makes the development of green visible over time.

Not just where trees are today.
But how landscapes are changing.

A foundation for monitoring, reporting and policy.

Compare. Quantify. Understand.

We analyse multiple years of tree and green data to identify changes.

1

We use multiple years of tree register data (from ~2010 onwards).

2

We identify:
- Tree loss-
- New tree growth
Changes in green structures

3

We quantify:
- Net change in surface area
- Gains vs losses
- Long-term trends

4

We analyse:
- Tree canopy volume (young vs mature trees)
- Tree type (deciduous vs coniferous)

5

At:
- Municipal level
- Regional level
- Provincial level
- National level

From change to policy direction.

Clear trend insight

Understand how green evolves over time.

Evidence-based policy

Support reporting with objective historical data.

Track national targets

Monitor progress toward goals like forest expansion.

Better balance between removal and planting

Understand where losses are compensated and where not.

Quality insight, not just quantity

Include canopy volume and tree maturity.

Support biodiversity strategies

Use tree type and structure insights for species management.

Built for long-term monitoring

The analysis provides:

  • Trend analysis from ~2010 to today
  • Net development in hectares
  • Insight into removal vs planting
  • Structural indicators such as canopy volume and tree types

Result:
A complete, time-based view of green development — not just a snapshot.

For policy, monitoring and reporting

Municipalities
Report on local green policies and developments

Provinces
Monitor regional trends and biodiversity strategies

National government (LVVN)
Track national targets such as forest expansion

Frequently Asked Questions

It analyses how trees and green areas have changed over time using historical datasets.

Typically from around 2010 to the present.

It shows where trees are removed, added and how total green surface changes over time.

It provides objective evidence to track targets and guide future decisions.

Understand how your
landscape changes.

Move from snapshots to trends.

Wigger Tims
Expert Nature & Landscape