Investigation of the relationship between morphological characteristics of Avicennia marina with ecological parameters (aquatic and soil) in mangrove ecosystems in southern Iran
Subject Areas : natural resorcesSetareh Koochaki Chenani 1 , sasan Babaie Kafaky 2 , Hadi Kiadaliri 3 , Asa Ebrahimi 4 , Alireza Etminan 5
1 - Ph.D. Student of Forestry, Department of Forestry, Faculty of Natural resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran.
2 - Associate Professor, Department of Forestry, Faculty of Natural resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran. *(Corresponding Author)
3 - Associate Professor, Department of Forestry, Faculty of Natural resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran.
4 - Assistant professor, Department of Biotechnology and Plant breeding, Science and Research branch, Islamic Azad University, Tehran, Iran.
5 - Associate professor, Department of Biotechnology and Plant breeding, Kermanshah Branch, Islamic Azad University, Kermanshah, Iran.
Keywords: mangrove, correlation, ecological characteristics, Avicennia marina, Guater.,
Abstract :
Background and Objectives: The southern mangrove forests are considered to be one of the most important forest habitats in Iran due to the presence of indanger and rare, and problems from pollutions. If lack of attention and destroyed, their reversibility is very difficult and sometimes impossible. The aim of this study was to investigate the relationship between aquatic and soil ecological characteristics and morphological variables in 4 vegetation areas of these forests (Goater, Qeshm, Assaluyeh and Mahshahr).
Material and Methodology: Ecological parameters including soil texture, equivalent calcium carbonate content, soil EC, soil pH, water sodium and potassium percentage, and morphological parameters of mangrove trees (height, diameter at breast height, collar diameter, diameter and length of pneumatofers, leaf area) with ground measurements were taken randomly by linear method (transect). In the laboratory, measurements were performed with specific devices for each parameter. Using ANOVA and Pearson correlation tests, the relationships between them were examined.
Findings: The results showed that the ecological conditions of the four regions, as well as the morphological characteristics of the trees, had significant differences. The amount of clay, pH and EC, sodium and potassium of water and height, d.b.h, collar diameter, leaf area and pneumatofer diameter in Guater showed the highest values and the decreasing trend of many parameters from east to west was quite evident. Ecological variables showed the highest correlation coefficient with the root length, while the leaf area parmeter showed the lowest dependence.
Discussion and Conclusion: The results of this study show the unique differences of each mangrove habitat in southern Iran in soil and water parameters and morphological characteristics. It also shows the great impact of ecological parameters (water and soil) on the establishment and growth of mangrove trees in sites in the forest ecosystems of the south of the country.
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