International Journal of Science, Engineering, and Sustainable Technology (IJSESTech)
Vol 1, No 1 (2014)

Size inequality dynamics and allometric model for estimating the self-thinning exponent in overcrowded mangrove Kandelia obovata forest

Analuddin, Kangkuso (Unknown)
Sharma, Sahadev (Unknown)
Hagihara, Akio (Unknown)



Article Info

Publish Date
21 Jan 2015

Abstract

Size inequality dynamics and allometric model of the self-thinning exponent of a crowded mangrove Kandelia obovata stands were analyzed by using five years data. Size variability and skewness of tree height, H and stem diameter of H, D0.1H, as well as the contributions of H and D0.1H on the tree mass, wT variation were analyzed. The Standard deviation SD of H decreased significantly by the vicinity of zero with stand growth, indicating that the variation of H becomes small as the stands grow, and finally all trees may have a similar height. On the other hand, SD of D0.1H was stable as the stands grew, while, the coefficient of variation CV of H significantly decreased as the stands grew. These results suggest that the size inequalities of H and D0.1H become small as the stands grow. Most of the skewness b1-values of H were negative meaning that most of the frequency distributions of H is J-shaped though stands grow. The self-thinning exponent was well-described by Weller’s allometric model, at which the value of  (8) was the same with  (1). This is because the value of  was nearly equal to 1/3, and the value of  was almost zero. Thus, the present study divulged that the size inequality of crowded mangrove actively self-thinned was dynamics, though their biomass density was significantly constant with the progress of time.

Copyrights © 2014






Journal Info

Abbrev

IJSESTech

Publisher

Subject

Engineering

Description

International Journal of Science, Engineering, and Sustainable Technology (IJSESTech) is an open international journal dedicated to the latest advancements in sciences, applied sciences and engineering, as well as relating sustainable technology. The goal of this journal is to provide a platform for ...