Summary of Ecology doctoral thesis: Primary succession of mangrove forest in con Ông Trang, mui Ca Mau biosphere reserve

To determine the distribution of mangrove plant species and structure of forest, quantitative analysis of plant diversity and calculate carbon storage in Con Ong Trang; as well as to analyse the impact of main ecological factors to structure, diversity and distribution of mangrove plants following space and time periods.
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Summary of Ecology doctoral thesis: Primary succession of mangrove forest in con Ông Trang, mui Ca Mau biosphere reserve MINISTRY OF EDUCATION VIETNAM ACADEMY AND TRAINING OF SCIENCE AND TECHNOLOGYGRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY ----------------------------- LU NGOC TRAM ANH PRIMARY SUCCESSION OF MANGROVE FORESTIN CON ONG TRANG, MUI CA MAU BIOSPHERE RESERVE Major: Ecology Code: 9.42.01.20 SUMMARY OF ECOLOGY DOCTORAL THESIS Ho Chi Minh City – 2020This work was completed at Graduate University Science andTechnology - Vietnam Academy of Science and TechnologyAcademic supervisor 1: Assoc. Prof. Dr. Vien Ngoc NamAcademic supervisor 2: Assoc. Prof. Dr. Nguyen Thi Phuong ThaoReviewer 1: …………………………….Reviewer 2: …………………………….Reviewer 3: …………………………….The Dotoral thesis will be defended at the Doctoral thesis examinationBoard of Graduate University of Science and Technology – VietnamAcademy of Science and Technology at…. Date …. /……/ 2020.The thesis can be accessed from:- The library of Graduate University of Science and Technology- The National Library of Viet Nam -1- GENERAL INFORMATION1. The importance for doing the thesis Mangrove forest has ecological, economic and environmentalfunctions in climate change adaptation and mitigation. This forest alsohelps in protecting sea dyke, alluvial soil, preventing erosion, limitingsaline intrusion, regulating local climate, conservating biodiversity. Inaddition, this ecosystem plays an important role in developingecotourism and education. Coastline of Viet Nam stretchs from the North to the South withthe rich and diverse mangrove vegetation. Mangrove ecosystem in CaMau province has typical features of this ecosytem in Vietnam andSoutheast Asia. Tran Thi Van et al. (2015) identified that area ofmangrove forest in Ca Mau province decreased from 71.345 ha (1953)to 33.083 ha (1992), after that rised to 46.712 ha (2011). The reasonsof the area decline due to the toxic chemicals sprayed by the US armyduring the war, the land use change from forest land to agriculture andaquaculture land. The mangrove ecosystem in Mui Ca Mau is mainlyformed from river alluvium. Con Ong Trang belonging to Mui Ca MauNational Park is a natural alluvial area including three sand dunesnamely Con Trong, Con Ngoai and Con Moi that formed in Cua Lonriver, Ong Trang estuary. This is favorable area for research relatingto impact of natural conditions on mangrove ecosytem because itformed according to the primary succession without human influence.Therefore, the research on primary succesion in Con Ong Trangprovide scientific data to mangrove study, scientific basis for planningof planting and appropriate using mangrove forest. In addition, thereasearch is great significane for conservation and development of the -2-mangrove ecosystem in Con Ong Trang where is the strictly protectedof Mui Ca Mau National Park.2. Objectives of study To identify boundaries and area that formed in various periodsof time in Con Ong Trang. To analyze primary succession of mangrove forest in Con OngTrang and suggest the diagram of primary succession in this area. To determine the distribution of mangrove plant species andstructure of forest, quantitative analysis of plant diversity and calculatecarbon storage in Con Ong Trang; as well as to analyse the impact ofmain ecological factors to structure, diversity and distribution ofmangrove plants following space and time periods.3. Object and scope of the research Object of the research: mangrove ecosystem in Con Ong Trang. Research scope: mangrove plant species; criteria on topographicelevation, tide, soil characteristics; carbon stocks in Con Ong Trang.4. Main contents of the thesis 4.1. Studying changes in area of mangrove forest in Con OngTrang from its inception to the present. 4.2. Investigating species composition, distribution, structureand diversity of mangrove plants in Con Ong Trang under the effectsof ecological factors. 4.3. Primary succession of mangrove forest in Con Ong Trang.5. Scientific and practical significance of the thesis The thesis contributes to the development of theory of primarysuccession and provides important data to the research on mangroveecosystem. -3- The thesis is the scientific background for the management,planning and selection of appropriate plant species in mangroveafforestation projects. CHAPTER 1. LITERATURE REVIEWS1.1. Mangrove species diversity and mangrove forest structure Mangrove forest is an ecosystem in which plant speciesadapting to coastal and estuarine environme ...