RIPLEY´S K FUNCTION AND MORAN INDEX ON SPATIAL DISTRIBUTION OF NATURAL REGENERATION OF CANDEIA IN MANAGED AREAS
Main Article Content
Abstract
Considering the importance of knowing the spatial pattern of forest species, the aim of this study was to describe the spatial pattern of natural regeneration of the species Eremanthus erythropappus (DC) MacLeish (candeia), after the application of a management system with seed-trees. Data from 46 populations submitted to the management with seed-trees were collected in the southern region of Minas Gerais. In each population all candeia (regenerating individuals, the candeia trees and remained after a harvesting operation) and individuals trees of other species were recorded and georeferenced. In each regeneration was also measured the total height. It was also applied the univariate Ripley's K index and the Moran index to describe the spatial regeneration pattern of candeia. To check the spatial relationship of regenerations with individual trees (candeia and other species) and the candeia strains it was applied the Ripley's K bivariate function. The two methodologies presented similar results, indicating that the candeia pattern unit is predominantly aggregate and, in some cases, varies from aggregate to a random pattern. Furthermore, there is a predominant pattern of interaction between regeneration and the remaining stumps from removed trees in the forest management, meaning a relationship between the budding regeneration and the remaining stumps.
Article Details
How to Cite
ARAÚJO, E. J. G. de, PÉLLICO NETTO, S., MACHADO, S. do A., DALLA CORTE, A. P., SCOLFORO, J. R. S., DAVID, H. C., & MORAIS, V. A. (2016). RIPLEY´S K FUNCTION AND MORAN INDEX ON SPATIAL DISTRIBUTION OF NATURAL REGENERATION OF CANDEIA IN MANAGED AREAS. Brazilian Journal of Biometrics, 34(3), 468–488. Retrieved from http://www.biometria.ufla.br/index.php/BBJ/article/view/197
Issue
Section
Articles
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).