Ring width and vessel features of the mangrove Excoecaria agallocha L. depend on salinity in the Sundarbans, Bangladesh

Siddique, Mohammad Raqibul Hasan; Zuidema, Pieter A.; Sass‐Klaassen, Ute; Chowdhury, Md. Qumruzzaman

doi:10.1016/j.dendro.2021.125857

Cited by 5 publications

(2 citation statements)

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“…In this study, ve dominant tree species with varying diameters from two distinct shade tolerance categories (Siddiqi 2001), light-demanding (S. apetala, A. o cinalis and E. agallocha), and shade tolerant (X. moluccensis and H. fomes), were selected for sampling. In the Sundarbans, each species was sampled in three distinct salinity zones (e.g., LSZ, MSZ, and HSZ).…”

Section: Tree Measurements and Wood Sample Collectionmentioning

confidence: 99%

“…However, a decreasing radial wood density trend in light demanding mangrove species contradicts the general trend in many tropical terrestrial species (Woodcock and Shier 2002;Nock et al 2009). Both light demanders (S. apetala and A. o cinalis) are early successional species in the Sundarbans (Siddiqi 2001) and colonize newly accreted barren lands where they may face more wind stress and tidal waves on a regular basis, in addition to other environmental stresses such as salinity and siltation. Higher wood density in light demanding species during the juvenile (early) stage of growth may be advantageous for survival in a newly colonized stressful mangrove environment.…”

Section: Radial Wood Density Variation In Relation To Shade Tolerance...mentioning

confidence: 99%

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Accounting intra-tree radial wood density variation provides more accurate above ground mangrove biomass estimation in the Sundarbans

Chowdhury,

Sarker,

Ali

et al. 2024

Preprint

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Wood density is an important functional trait used to estimate forest biomass and carbon stocks. Its wider range of variations, such as inter- and intra-specific level, and within tree disparity, repeatedly invoke wood density as a potential source of variation in biomass or carbon estimation. We aim to (i) measure pith-to-bark wood density profiles in major mangrove tree species in the Sundarbans and (ii) quantify the deviation in above ground biomass estimations by comparing the method that ignores wood density variation across the radius. One hundred and fifty wood cores were collected from five widely distributed ecologically distinct mangrove species in three distinct salinity zones (low, medium, and high) in the Bangladesh Sundarbans. Wood density was measured for each 1 cm long wood core segment from pith to bark. Among the three light-demanding species, Sonneratia apetala and Avicennia officinalis showed a decreasing wood density trend from pith to bark while Excoecaria agallocha exhibited an increasing trend. Shade tolerant Xylocarpus moluccensis displayed a decreasing wood density trend, whereas the most dominant Heritiera fomes unveiled almost less variable wood density values from pith to bark. Albeit wood density varied positively with slenderness ratio, a significant relationship was found only for the shade tolerant species. Shade tolerant species also had a significantly higher mean wood density than light demanders. Wood density was significantly higher at the high saline zone for the studied species, except S. apetala and A. officinalis. Depending on the species, ignoring radial wood density variation increased deviations in AGB estimations up to ~ 17%. This study suggests for considering radial wood density variations, and their possible site- and species-specific influences to increase the accuracy of mangrove biomass estimations. Furthermore, these preliminary results pave the avenue for a better understanding of wood functional traits in the Sundarbans.

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Section: Tree Measurements and Wood Sample Collectionmentioning

confidence: 99%