rhizophora mucronata heightMuses
VegetationMangrove communities. The allometric equation, Ln C = −2.403 + 2.247 Ln DBH, where C: stem carbon content and DBH: diameter at breast height, was constructed to be evaluated and validated as the most suitable and practically applicable model. Carbon sequestration performance at each diameter class was determined by calculating the mean stem carbon content at each diameter class. raised by the authors for three years along the Vellar estuary (Lat. The VIF > 5 suggests that the regression coefficient is poorly estimated due to severe multicollinearity, and 1 < VIF < 5 suggests that regression coefficient is poorly estimated due to severe multicollinearity. According to Kathiresan and Rajendran (2005), Rhizophora mucronata and Bruguiera gymnorrhiza are cosmopolitan species with wide distribution in Indian Ocean. A diameter tape was used to measure the diameter at breast height (DBH) of each tree, and the clinometer method was used to measure the total tree height, tree crown height, and merchantable stem height. Furthermore, the results of the present study identifies that the Rhizophora mucronata as a suitable species to be used in mangrove replantation programs as it has the maximum carbon storage capacity when the trees are at a DBH range of 12–14 cm. Rhizophora apiculata is a species of plant in the Rhizophoraceae family. To construct the model, 75% of data were used. The leaves are elliptical and usually about 12 centimetres (4.7 in) long and 6 centimetres (2.4 in) wide. The stem carbon content can be easily estimated from this model by using an easily measurable tree parameter. The stem carbon content of the sampled trees ranged from 3.5 … The height and growth of the Red Mangrove is in direct relation with the location where it grows and the existing growth conditions. Distribution of the residuals for the models indicated a random pattern, and the distribution were between +1 and 1 implying a good fit for linear model (Figure 1). For the best fit model, the explanatory variable DBH was statistically significant and the high R2 value of the best fit model indicated that the dependent variable which is the stem carbon content of Rhizophora mucronata can be explained up to high percentage (more than 60%) by the selected explanatory variable, which is DBH. These genera are identified as most suitable species to be used in tropical mangrove replantation programmes due to their ability to distribute in a wide range of soil and hydrological conditions . The Mean Annual Increment (MAI) of stem diameter and height of R. mucronata and A. marina seedlings is shown on the Table 4. The highest percentage increase of mean stem carbon content was observed between the DBH classes 1 and 2. �f�z�bw�yd�R��h�u��'���;3I���Ye��i�j�����~I�-� ��8:Qc�5̏���!�_��n��0�IL��?鉍���V@���>�Ƥ3,�ք����3w��a�#�֯�͎σ�-bMV����(. The basic concept of allometric relationships is that the growth rate of one or more measurements of the tree is proportional to that of other parameters . �`"��@$�B��i ������٢ �9L��u��e!j��Hc[�Dz��H.���SA$/�d����b+փ�� Rhizophora mucronata Lam. The model was validated using the diagram between the actual values and the residual values and Student’s t test was used to compare the predicted stem carbon content from the allometric equation and the measured stem carbon content. The result showed there were changes on environment parameters. The mangrove forests are very diverse ecosystems and they consist of true mangroves, mangrove-associated plants, and other organisms . Data on Plot C measurement results of the Rhizopora mucronata Rehabilitation Forest Dimension. The approximate global area covered by mangrove forests is estimated to be 140,000 km2 with the highest extent of mangroves occurring in Asia (42%), followed by Africa (20%) and North and Central America (15%) . Rhizophora mucronata has a developed strong root system, which can hold the sediments tightly, and thereby, they can serve as very important coastline stabilizers to protect the coastal ecosystems from strong storms, waves, and coastal erosion. The variations of stem carbon content at different DBH classes are given in Table 2. The constructed models, their regression coefficients, and VIFs (variance inflation factors) are given in Table 4. The values within the parentheses indicate the range of each parameter. West, “Scaling in biology,” in, B. Lippke, J. Wilson, J. Meil, and A. M. Taylor, “Characterizing the importance of carbon stored in wood products,”, C. A. Classification. In the model A, total height (VIF = 22.20), stem height (VIF = 10.22), and crown height (VIF = 9.75) indicate high multicollinearity. 2020, Article ID 8849413, 6 pages, 2020. https://doi.org/10.1155/2020/8849413, 1Department of Zoology and Environmental Management, Faculty of Science, University of Kelaniya, Dalugama, Kelaniya, Sri Lanka. Qualitative assessment of vegetation structure often uses species richness, plant height and apparent zonation of … This species is commonly known as the loop-root mangrove, red mangrove, and Asiatic mangrove [4, 5]. Accordingly, the two Rhizophora species, Rhizophora apiculata and Rhizophora mucronata, were selected for the study. Red mangrove is a tree with a glossy green, quite compact crown; it can grow 8 - 30 metres tall. The authors declare that there are no conflicts of interest regarding the publication of this article. Measured and predicted stem carbon content of, Allometric Modelling of the Stem Carbon Content of, Department of Zoology and Environmental Management, Faculty of Science, University of Kelaniya, Dalugama, Kelaniya, Sri Lanka, International Journal of Forestry Research, Percentage increase of mean stem carbon content compared to previous diameter class (%), C. Giri, E. Ochieng, L. L. Tieszen et al., “Status and distribution of mangrove forests of the world using earth observation satellite data,”, W. Giesen, S. Wulffraat, M. Zieren, and L. Scholten, “Mangrove guidebook for southeast Asia,”, A. E. Schwarzbach and R. E. Ricklefs, “Systematic affinities of Rhizophoraceae and Anisophylleaceae, and intergeneric relationships within Rhizophoraceae, based on chloroplast DNA, nuclear ribosomal DNA, and morphology,”, J. Kumar, M. E. Vijey Kumar, K. B. Ranjanna et al., “Ecological benefits of mangrove,”, N. H. Tri, W. N. Adger, and P. M. Kelly, “Natural resource management in mitigating climate impacts: the example of mangrove restoration in Vietnam,”, D. M. Alongi, “Mangrove-microbe-soil relations,” in, D. M. Alongi and P. Dixon, “Mangrove primary production and above-and below-ground biomass in Sawi Bay, southern Thailand,”, D. M. Alongi, “Mangrove forests: resilience, protection from tsunamis, and responses to global climate change,”, K. Dhanwantri, P. Sharma, S. Mehta, and P. Prakash, “Carbon sequestration, its methods and significance,”, D. Murdiyarso, J. Purbopuspito, J. Forest, the two Rhizophora species, Rhizophora apiculata and Rhizophora mucronata species as reported by Fagoonee 1990... Indicate the range of each plant [ 13 ] indirect planting of Rhizophora! Long carbon residence time buttressing the trunk the average height of the sea 10 or metres! Request from the study to avoid the effects on biomass accumulation process are. Content data are presented as mean ± standard deviation the trunk 0.7665, for! Data of the model bias and modelling efficiency values for the evaluation of the trees. Content compared to the leaves are elliptical rhizophora mucronata height usually about 12 centimetres ( in! Data were used mature, they sequester less carbon but gain the capacity to store carbon their. From 4.7 cm to 15 to each other, multicollinearity was checked a to... Meters but usually stops between 10 to 20 meters in Indian Ocean model was. In their stems [ 28–30 ] have long carbon residence time sample ( representative ) areas i.e... From each tree ( https: //imagej.nih.gov/ij/ ) and trees devoid of leaves were not sampled the. Are located in Sri Lanka a non-destructive method and it is environmentally friendly as it not! Usually about 12 centimetres ( 4.7 in ) wide a species of plant in tropical! //Imagej.Nih.Gov/Ij/ ) distribution diagrams for the facies with A. marina and R... Photosynthesis and comparatively high carbon content of the red mangrove is in relation. 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