HOMOGENEOUS RESPONSE AREAS FOR FOREST FUEL SAMPLING
DOI:
https://doi.org/10.29298/rmcf.v4i15.447Keywords:
Forest fuels, exposure, forest fires, remote sensing, Selva El Ocote Biosphere Reserve, GISAbstract
Dead forest fuels are assessed in situ, requiring sampling sites located in a systematic way, with a sampling intensity of 1-3% with respect to the whole area. Although this entails a large investment of financial, human and time resources, the accuracies obtained are stil low. Therefore, we propose an alternative sampling strategy identifying areas with similar features known as homogeneous response areas (HRAs). These are the basis for the structuring of a stratified sampling design tending to reduce the variance within each HRA in order to increase the accuracy of the estimates. This work was carried out in the Selva El Ocote Biosphere Reserve, located in the state of Chiapas. 19 HRAs were defined based on ten different kinds of vegetation: rainfed annual crops, live oak groves, cultivated grasslands, human-induced grasslands, savannahs, tall/medium evergreen forests, tall/medium evergreen forests with secondary bushy and herbaceous vegetation, and low deciduous and sub-deciduousforests.Besides,threealtitudeintervalswereconsidered:180-633m,634-1086m,and1087-1540m. EachHRAcomprisesseveral zones. The largest HRA consists of tal/medium evergreen forests and is located between 634 and 1 086 m of altitude, with a surface of 38 808 ha; while the smallest is constituted by savannahs, at an altitude of 180 to 633 m and with a surface of 3.4 ha.
Downloads
Downloads
Published
How to Cite
Issue
Section
License
The authors who publish in Revista Mexicana de Ciencias Forestales accept the following conditions:
In accordance with copyright laws, Revista Mexicana de Ciencias Forestales recognizes and respects the authors’ moral right and ownership of property rights which will be transferred to the journal for dissemination in open access.
All the texts published by Revista Mexicana de Ciencias Forestales –with no exception– are distributed under a Creative Commons License Attribution-NonCommercial 4.0 International (CC BY-NC 4.0), which allows third parties to use the publication as long as the work’s authorship and its first publication in this journal are mentioned
The author(s) can enter into independent and additional contractual agreements for the nonexclusive distribution of the version of the article published in Revista Mexicana de Ciencias Forestales (for example, include it into an institutional repository or publish it in a book) as long as it is clearly and explicitly indicated that the work was published for the first time in Revista Mexicana de Ciencias Forestales.
For all the above, the authors shall send the form of Letter-transfer of Property Rights for the first publication duly filled in and signed by the author(s). This form must be sent as a PDF file to: ciencia.forestal2@inifap.gob.mx
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 International license.