Back to AboutBack to the map

Reading the EcoTrend map

How to read the EcoTrend map of vegetation change from 2023 to 2024. The map is preliminary. Updated 1 October 2026.

What do red and green mean?

Red means vegetation declined. Green means it improved. The pale middle means little change.Little changeVegetation declinedVegetation improved

Swipe sideways to see the whole figure

Red means vegetation declined. Green means it improved. The pale middle means little change.Little changeVegetation declinedVegetation improvedstronger declinestronger improvement

Red means vegetation declined between 2023 and 2024. Green means it improved. Darker color means a stronger change.

What do the numbers mean?

Most forest is in the pale and light red colors. 0, 10 and 100 share one pale color. Half of the forest is below −426.half of forest below −426% of forest per color1.52.99.741441.00, ±10, ±100: same pale color−3,000−1,0001,0003,000

Swipe sideways to see the whole figure

Most forest is in the pale and light red colors. 0, 10 and 100 share one pale color. Half of the forest is below −426.half of forest below −4265 % below5 % above% of forest per color1.52.99.741441.0.1.02.020, ±10, ±100: same pale color−3,000−1,0001,0003,000

The numbers are an index. A bigger number means a stronger change. Values between −375 and 375 all show as the pale color. The darkest red is the most affected 1.5 percent of mapped forest.

Why these color steps?

Only manual breaks keep the neutral color at zero. Share shown green: manual 1.1 percent, equal interval 0.1, standard deviation 49, percent clip 80, min to max 0.1.Manualneutral color1.1Equal interval0.1Std. deviation49Percent clip80Min to max0.1half of forest is left of the dashed line% green

Swipe sideways to see the whole figure

Only manual breaks keep the neutral color at zero. Share shown green: manual 1.1 percent, equal interval 0.1, standard deviation 49, percent clip 80, min to max 0.1.Manualused on this mapneutral color1.1Equal interval0.1Std. deviationmean ± 249Percent clip2nd to 98th80Min to max0.1half of forest is left of this line% green‹ below −3,000above 3,000 ›% green: share of mapped values shown green

The color changes every 750 units, from −3,000 to 3,000, the same way across the whole map. Standard-deviation and percent-clip stretches would color declining forest green on this map. In GIS software, use manual breaks at ±375, ±1,125, ±1,875 and ±2,625.

Can I use it to decide where to act?

Today: use the map to choose where to look. Action classes need testing first.todaySee patternsChoose places fora closer lookwith a stated ruleHigh / medium /low classesneeds testingagainst aerial surveysand field plotsTree mortality orfire threatneeds separateoutcome data
Today: use the map to choose where to look. Action classes need testing first.needs testing against aerial surveys and field plotstodaySeepatternsChoose placesfor a closer lookwith a stated ruleHigh / medium/ low classesTree mortalityor fire threatComing next: a yearly vegetation-changemap in plain units

Use it to choose where to look first. Dark red areas are the best candidates for a field visit or an imagery check. It does not measure tree mortality or fire risk.

What a number shows

NumberMap colorMeaning
−3000Darkest redStrongest decline
−1000Light redClear decline
−100PaleLittle change
−10PaleLittle change
0PaleLittle change
+10PaleLittle change
+100PaleLittle change
+1000Light greenClear improvement
+3000Darkest greenStrongest improvement

How common each color is on this map

Map colorValuesPercent of mapped forest
Darkest redBelow −26251.53
Dark red−2625 to below −18752.89
Red−1875 to below −11259.66
Light red−1125 to below −37540.95
Pale−375 to below 37543.85
Light green375 to below 11251.00
Green1125 to below 18750.08
Dark green1875 to below 26250.02
Darkest green2625 and above0.02
Method notes for analysts
  • The index combines trends in Sentinel-2 greenness (NDVI) and Sentinel-1 radar, compared with the wider region.
  • Numbers are the index multiplied by 1,000.
  • Exact observation dates and the production formula for this file are being confirmed with the producer.
  • Percentages are shares of mapped forest pixels in the source file.
  • The map does not measure tree mortality or fire risk.

Source value percentiles

PercentileValue
1st−2937
2nd−2434
5th−1792
25th−792
50th−426
75th−192
95th+93
98th+255
99th+399