Plant Communities Of Mangrove Forests In Dong Long Cummune Tien Hai District Thai Binh Province

MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT

VIETNAM FORESTRY UNIVERSITY

STUDENT THESIS

PLANT COMMUNITIES OF MANGROVE FORESTS IN DONG LONG

COMMUNE, TIEN HAI DISTRICT, THAI BINH PROVINCE

Major: Natural Resources Management

Code: D850101

Faculty: Forest Resources and Environmental Management

Student: Nguyen Thi Hien Student ID: 1153090344

Class: K56 Natural Resources Management Course: 2011- 2015

Advanced Education Program

Developed in collaboration with Colorado State University, USA

Supervisor: Dr. Vu Quang Nam

Hanoi, October 2015

ACKNOWLEDGEMENT

Foremost, I would like to express my sincere gratitude to my advisor Dr. Vu Quang

Nam for the continuous support of my student thesis study and research, for his motivation,

enthusiasm, and immense knowledge. His guidance helped me in all the time of research and

writing of this thesis.

Beside my advisor, I would like to thank professor from Colorado State University, Dr.

Lee Macdonald, for his guidance, patience, and providing my class with an excellent

atmosphere for our research. My sincere thanks also goes to Mr. Nguyen Xuan Nho- leader

of mangrove forest protection, who provided me many useful knowledge about mangrove

forest and all of officers in Dong Long commune, for their giving information about the local

area and culture that helped me a lot in this study.

Lastly, I would like to thank to my family: my mother who always support to me and

my friends who helped me in my research.

Hanoi, October 2015

Nguyen Thi Hien

CONTENTS

ACKNOWLEDGEMENT

ABSTRACT

1. INTRODUCTION..................................................................................................................1

2. GOALS AND SPECIFIC OBJECTIVES ..............................................................................5

2.1. Goal..................................................................................................................................5

2.2. Specific objectives...........................................................................................................5

3. STUDY SITE AND METHODS ...........................................................................................6

3.1. Study site......................................................................................................................6

3.2. Methods ...........................................................................................................................7

3.2.1. Field work:................................................................................................................7

3.2.2. Data analysis methods:.............................................................................................9

4. RESULTS AND DISCUSSIONS ........................................................................................11

4.1. Species composition of vascular plants and their distribution.......................................11

4.1.1. Species composition of vascular plants in Dong Long commune ...........................11

4.1.2. Diversity of flora in Dong Long ..............................................................................12

4.1.3. The valueable uses ofvegetation in Dong Long ......................................................13

4.1.4. Distribution of vegetation in Dong Long ................................................................14

4.2. Assemblages and mangrove forest communities and their distribution in Dong Long.15

4.2.1. Species density.........................................................................................................18

4.2.2. Community structure ...............................................................................................19

4.2.3. Distribution of mangrove forest communities in Dong Long..................................23

4.3. Predict plant succession in Dong Long..........................................................................23

5. CONCLUSION AND RECOMMENDATION................................................................26

5.1. Conclusion .................................................................................................................26

5.2. Recommendation .......................................................................................................26

REFERENCES

APPENDIX

Appendix A: Table

Appendix 2: Figure

LIST OF TABLES

Table 4.1. True mangrove species in 3 lines ............................................................................12

Table 4.2. The life form of mangrove vegetation in Dong Long .............................................13

Table 4.3. The valuable uses of vegetation in Dong Long.......................................................14

Table 4.4. Distribution of vegetation in Dong Long commune................................................15

Table 4.5. Composition some mangrove lines follow to plots.................................................16

Table 4.6. Mangrove plant communities in 3 lines..................................................................17

Table 4.7: Tree density in communities, assemblages in Dong Long commune .....................18

Table 4.8. Species compositions in three communities............................................................24