Land and ecosystems

Vegetation change analysis

Where is the land greening, and where is it losing ground?

Validated in

Arequipa, Peru

Shaded-relief map of a 225 km² watershed near Arequipa, 2017 to 2025, with each pixel coloured by vegetation recovery, decrease, stable or uncertain.

Maps from a finished run

Map of a watershed near Arequipa with each 320 m pixel classed as vegetation recovery, decrease, stable or uncertain, beside the summary numbers and a yearly NDVI line from 2017 to 2025. — Change classes: where the signal is recovery, decrease or neither. 225 km² watershed near Arequipa, 2017 to 2025.

The same watershed as a continuous heatmap of recent NDVI minus early NDVI, red for decrease through green for increase. — Change heatmap: the recent three years minus the first three.

Nine small maps of the watershed, one per year from 2017 to 2025, each showing the NDVI of that year and its mean. — One composite per year, May to October, on a shared colour scale.

Results

Show a recovery signal in a 225 km² watershed near Arequipa (2017-2025) whose average looked stable: 6,687 ha; Show a recovery signal in a 225 km² watershed near Arequipa (2017-2025) whose average looked stable
Show a decrease signal in the same watershed, with 9 of 9 years of usable satellite data: 136 ha; Show a decrease signal in the same watershed, with 9 of 9 years of usable satellite data

What it does

Upload your area and ask in the chat.
Approve the plan. Nothing runs before you do.
One clean image per year, early period against recent.
Explore six map views of the change.
Rank areas by change and download the results.

Runs onVegetation Change Engine Report Builder

Six ways to read the change

Change classes
Change heatmap
Vegetation by year
Long-term trend
Data quality
Review grid

Runs only after you approve the plan
Every result shows its data quality
Built on USGS/NASA Landsat and Google Earth Engine

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