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Structural characteristics and physiological responsesalong the salinity gradients of Ceriops tagal (Perr.) C.B. Rob.dominated mangrove associations |
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| รหัสดีโอไอ | |
| Creator | Tritep Vichkovitten |
| Title | Structural characteristics and physiological responsesalong the salinity gradients of Ceriops tagal (Perr.) C.B. Rob.dominated mangrove associations |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 5 |
| Page no. | 1392-1399 |
| Keyword | mangrove, Ceriops tagal, salinity, photosynthetic pigment, carbohydrate reserves |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | Forest structure of Tagal mangrove (Ceriops tagal (Perr.) C.B. Rob.) and soil characteristics were examined at fivedifferent positions along the 1,800 m transect line perpendicular to the coast of Trat province, Thailand. Tree stands at theoutermost station were highest and exhibited the decreasing trend from the coastal fringe landward. Average soil salinities wereranging from 22 to 37 ppt and increased with increasing distance from coastal to the inner zone. High organic matter contents (upto 44%) in soil from the inner stations indicated the peat formation in this mangrove landscape. Porewater nutrient concentrationsincluding nitrite+nitrate, ammonia and phosphate at the inner zones were relatively low compared to other mangrove forests.Porewater sulfide was low and could not showed any negative effects on this mangrove vegetation. Responses of C. tagal to soilsalinity gradient under field conditions were evaluated in term of chlorophyll a (chl-a), chlorophyll b (chl-b), carotenoids, sugarand starch. High salinity had no significant detrimental effects on photosynthetic pigments for both tree and seedling however,variation on plant responses pattern was achieved. This study indicated the physiological adaptation of C. tagal to survive anextensive variation of soil salinity could be varied depending on plant developmental stage. |
