Exploratory: generated automatically from the UmaTerra platforms' data; not independently validated or peer reviewed.

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Government · Amazon · Pará

Jamanxim and Martírios: a federal park and a Pará state park, term by term

In Pará the same governor stayed in office across the switch from Bolsonaro to Lula. That makes the state a rare experiment: inside Jamanxim National Park, on the BR-163, clearing rose and fell with the federal government; in the Serra dos Martírios state park, on the Araguaia, what changed was fire, and it followed no president. Satellite pictures from four eras, each clearing in the colour of the president of the day.

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—of primary vegetation cleared inside Jamanxim in the worst year measured
—drop from that peak to 2023, with the same governor measured
—burned inside Jamanxim in the 2024 drought measured
—more area burned a year in Martírios since 2016 than before measured

measured by satellite, by a gauge or by the geometry itself. estimated a statistical test, or a reading that hangs on a threshold. missing a part that did not respond this time.

1

Two parks, one state

This story runs on Yvynation and on satellite pictures prepared for this page in Earth Engine.

2

Presidents and governors

The terms since the return to democracy; the marks are the years each park was created.

3

1995

4

2006

5

2016

6

2025

7

The land inside the federal park

Every year of MapBiomas Collection 11, 1985 to 2025.

8

Each clearing in a president's colour

On the map, the year each pixel was first cleared, painted by the president of the day.

9

1995

10

2025

11

The land inside the state park

The same reading, now in the state's park.

12

The state park, term by term

On the map and the chart, the same measure, each year painted by the president of the day.

13

Fire in the state park

On the map, the last year each pixel burned, painted by the president of the day; on the chart, each year's area burned.

14

Side by side

Yearly mean in each presidential term, inside and in the 10 km around.

15

Where each number came from

Every number on this page comes from a public service or dataset, listed here.

umaterra.com.br · Jamanxim · Martírios
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What this story does not say

Another story: the Campos Gerais, in Paraná →

Written with Claude Opus 5.5, by Anthropic, from the numbers Yvynation and Earth Engine computed: no number comes from the model. The terms of office are the public record. Versão em português.

Notes

  1. Provisional Measure 758/2016, turned into Law 13,452/2017, which changed the limits of Jamanxim National Park for the route of the EF-170 railway (Ferrogrão); the law was challenged before the Supreme Court (ADI 6553). Law 13,452/2017; STF, ADI 6553.
  2. Primary-vegetation clearing: class 4 of MapBiomas Collection 11's deforestation and secondary-vegetation product, the year each pixel first stopped being native vegetation. The park is over 8,600 km² and was summed at 60 m; the other numbers at 30 m. Souza et al. (2020), Remote Sensing 12, 2735.
  3. Area burned: MapBiomas Fire, Collection 5, yearly. A pixel that burns in two years counts in both. Alencar et al. (2022), Remote Sensing 14, 2510.