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Puuc Biocultural State Reserve

The estimated error-adjusted area of detected annual forest clearings from the year 2000 until the year 2021 was 230,511 ha in total (±19,979 ha). Results also show a mean and median forest clearing patch area of 1.26 ha and 0.54 ha, respectively (Std Dev = 3.36), ranging from patches of 0.20 ha to large forest clearings of 229 ha. The majority of patches (98%) fall within the 0.20–7.27 ha range, with the rest falling mostly under 50 ha and only five patches greater than 100 ha.

Over the entire study area, annual forest clearings occurred on an average of 1552 clearings per year with an average area of 1951 ha per year. The extent of deforestation peaked for the year 2009 with 6237 ha of forest cleared in 4272 events. The year with the lowest forest clearing detected was 2001, with only 261 ha of forest cleared. In general, the dynamics of forest removal were highly variable during the whole study period. We observed the highest and the lowest forest area cleared during the first ten years. After 2011, clearings peaked in 2019, with 3154 ha cleared in 1948 events. Spatially, clearings were mostly clustered outside the boundaries of the PBSR and less frequent inside the PBSR.

These results indicate that the study area has experienced lower deforestation rates compared to the reported statewide and regional deforestation processes in the Yucatan peninsula. Our results also show that forest clearing activities have remained low and stable within the PBSR, and although more frequent than within the PBSR, forest clearing has remained stable in the surroundings of the PBSR.
The comparison of the annual forest clearing dataset to remotely sensed carbon density and tree species models further reveals that the PBSR is controlling agricultural dynamics within its boundaries. Our results show that landowners are clearing forests with lower carbon density and tree species diversity in relation to what is available for them at the landscape scale.
 

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Forest loss extent and frequency

inside reserve

 

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Loss extent and frequency outside reserve (0-12.5 km)

 

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Loss extent and frequency outside reserve (12.5-25 km)

 

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Forest loss in relation to carbon density and plant species richness 

 

Citation:

Portillo-Quintero, C.; Hernandez-Stefanoni, J.L.; Dupuy, J.M. Forest Clearing Dynamics and Its Relation to Remotely Sensed Carbon Density and Plant Species Diversity in the Puuc Biocultural State Reserve, Mexico. Remote Sens. 2023, 15, 3445. https://doi.org/10.3390/rs15133445

Text and Analysis available at: https://www.mdpi.com/2072-4292/15/13/3445

© 2023 All rights reserved. For more information, contact Dr. Portillo-Quintero via email: carlos.portillo@ttu.edu

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