Saharan dust transport and tropical dry forests in the Yucatan peninsula: Vegetation structure, atmospheric P inputs and soil development in a tropical karst landscape

2012 ◽  
Author(s):  
Rishiraj Das
Keyword(s):  
Vegetation Structure ◽  
Yucatan Peninsula ◽  
Soil Development ◽  
Saharan Dust ◽  
Tropical Dry Forests ◽  
Dry Forests ◽  
Dust Transport ◽  
Karst Landscape ◽  
Yucatán Peninsula ◽  
Tropical Karst

Photoprotection related to xanthophyll cycle pigments in epiphytic orchids acclimated at different light microenvironments in two tropical dry forests of the Yucatan Peninsula, Mexico

Planta ◽  
2015 ◽  
Vol 242 (6) ◽  
pp. 1425-1438 ◽  
Author(s):  
Edilia de la Rosa-Manzano ◽  
José Luis Andrade ◽  
Ernesto García-Mendoza ◽  
Gerhard Zotz ◽  
Casandra Reyes-García
Keyword(s):  
Xanthophyll Cycle ◽  
Yucatan Peninsula ◽  
Tropical Dry Forests ◽  
Dry Forests ◽  
Xanthophyll Cycle Pigments ◽  
Epiphytic Orchids ◽  
Yucatán Peninsula

scholarly journals Mapping Tree Species Deciduousness of Tropical Dry Forests Combining Reflectance, Spectral Unmixing, and Texture Data from High-Resolution Imagery

Forests ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1234
Author(s):  
Astrid Helena Huechacona-Ruiz ◽  
Juan Manuel Dupuy ◽  
Naomi B. Schwartz ◽  
Jennifer S. Powers ◽  
Casandra Reyes-García ◽  
...  
Keyword(s):  
High Resolution ◽  
Tree Species ◽  
Yucatan Peninsula ◽  
Spectral Unmixing ◽  
Tropical Dry Forests ◽  
Precipitation Gradient ◽  
Dry Forests ◽  
Yucatán Peninsula ◽  
High Resolution Imagery ◽  
Texture Metrics

In tropical dry forests, deciduousness (i.e., leaf shedding during the dry season) is an important adaptation of plants to cope with water limitation, which helps trees adjust to seasonal drought. Deciduousness is also a critical factor determining the timing and duration of carbon fixation rates, and affecting energy, water, and carbon balance. Therefore, quantifying deciduousness is vital to understand important ecosystem processes in tropical dry forests. The aim of this study was to map tree species deciduousness in three types of tropical dry forests along a precipitation gradient in the Yucatan Peninsula using Sentinel-2 imagery. We propose an approach that combines reflectance of visible and near-infrared bands, normalized difference vegetation index (NDVI), spectral unmixing deciduous fraction, and several texture metrics to estimate the spatial distribution of tree species deciduousness. Deciduousness in the study area was highly variable and decreased along the precipitation gradient, while the spatial variation in deciduousness among sites followed an inverse pattern, ranging from 91.5 to 43.3% and from 3.4 to 9.4% respectively from the northwest to the southeast of the peninsula. Most of the variation in deciduousness was predicted jointly by spectral variables and texture metrics, but texture metrics had a higher exclusive contribution. Moreover, including texture metrics as independent variables increased the variance of deciduousness explained by the models from R2 = 0.56 to R2 = 0.60 and the root mean square error (RMSE) was reduced from 16.9% to 16.2%. We present the first spatially continuous deciduousness map of the three most important vegetation types in the Yucatan Peninsula using high-resolution imagery.

scholarly journals Mapping forest age and characterizing vegetation structure and species composition in tropical dry forests

2021 ◽  
Vol 120 ◽  
pp. 106955
Author(s):  
G. Reyes-Palomeque ◽  
J.M. Dupuy ◽  
C.A. Portillo-Quintero ◽  
J.L. Andrade ◽  
F.J. Tun-Dzul ◽  
...  
Keyword(s):  
Species Composition ◽  
Vegetation Structure ◽  
Tropical Dry Forests ◽  
Forest Age ◽  
Dry Forests

Physical and biogeochemical characterization of a tropical karst marsh in the Yucatan Peninsula, Mexico

2021 ◽  
Author(s):  
Eduardo Cejudo ◽  
Daniela Ortega-Camacho ◽  
Eduardo Arturo García-Vargas ◽  
Elizabeth Hernández-Alarcón
Keyword(s):  
Yucatan Peninsula ◽  
Yucatán Peninsula ◽  
Tropical Karst

Microbial diversity and physicochemical characteristics of tropical karst soils in the northeastern Yucatan peninsula, Mexico

2021 ◽  
Vol 165 ◽  
pp. 103969
Author(s):  
Jazmín Santillán ◽  
Rafael López-Martínez ◽  
Eduardo J. Aguilar-Rangel ◽  
Karina Hernández-García ◽  
María Soledad Vásquez-Murrieta ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Yucatan Peninsula ◽  
Physicochemical Characteristics ◽  
Yucatán Peninsula ◽  
Karst Soils ◽  
Tropical Karst
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