Map of tree floristic patterns in Peruvian Amazonia


Floristic patterns of trees at genus-level were predicted throughout Peruvian Amazonia using Landsat satellite imagery, climate, elevation and soil layers. Genus-level tree floristic variation from 157 inventory plots was summarized through non-metric multidimensional scaling (NMDS). Random forest regression was used to predict each of the floristic gradients (NMDS axes 1, 2 and 3) at 450-m resolution over all Peruvian Amazonia. The model predicted 63%, 61% and 40% of the variation along the NMDS axes 1, 2 and 3 respectively. The map is limited to Peruvian Amazonia. Non-forest areas were masked out as well as areas with more than 2000 meters of altitude. The pixel values of each floristic gradient (NMDS axes) represent the position along the floristic ordination axes.

Two maps are available for download: (Map 1) "Map of floristic patterns of trees in Peruvian Amazonia.tif"The map is a multi-raster file of 3 bands, in which band 1, 2 and 3 represent the predicted NMDS axes 1, 2 and 3 respectively.(Map 2) "Map of tree floristic classes in Peruvian Amazonia.tif"The previous map was classified into 10 classes using a k-means clustering method. The number of clusters in the k-means classification was based on an elbow method considering the ratio between-cluster and total variation.Format (Map 1 and 2): .tifRaster dimensions:X: 2600 Y: 3478 Bands: 3 (Map 1)X: 2600 Y: 3478 (Map 2)Origin (Map 1 and 2): -79.4838,-0.0384722Pixel size (Map 1 and 2): 0.00416667 degrees (~450 meters)Coordinate Reference System (Map 1 and 2): WGS84Layer extent (Map 1 and 2):-79.4837500000000006,-14.5301388890000016-68.6504166649999945,-0.0384722210000000Band 1 (predicted NMDS axis 1 - Map 1)STATISTICS_MAXIMUM=1.1180179608469STATISTICS_MEAN=-0.015504471259686STATISTICS_MINIMUM=-1.6817132865239STATISTICS_STDDEV=0.40370983275472Band 2 (predicted NMDS axis 2 - Map 1)STATISTICS_MAXIMUM=1.0484372765624STATISTICS_MEAN=-0.016429095319238STATISTICS_MINIMUM=-1.0469313582621STATISTICS_STDDEV=0.36291410193146Band 3 (predicted NMDS axis 3 - Map 1)STATISTICS_MAXIMUM=1.099924187551STATISTICS_MEAN=0.03724122728335STATISTICS_MINIMUM=-0.99972264056121STATISTICS_STDDEV=0.33076922757331

Related Identifier
Metadata Access
Creator Chaves, Pablo Pérez
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2020
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Language English
Resource Type Dataset
Format application/zip
Size 45.4 MBytes
Discipline Earth System Research
Spatial Coverage (-79.484W, -14.530S, -68.650E, -0.038N); Peru
Temporal Coverage Begin 2013-01-01T00:00:00Z
Temporal Coverage End 2018-12-31T00:00:00Z