Structure And Regeneration Characteristics Of Manfrove Forest In Tien Hai District Thai Binh Provice

ACKNOWLEDGEMENTS

Firstly, I would like to express my sincere gratitude to my advisor Dr. Pham Minh

Toai for constant support and valuable guidance during the time of research and writing of

this thesis.

Secondly, I would also thank to various professors of Vietnam Forestry University

and Colorado State University, especially to Professor Lee MacDonald for providing

classes and guidance for this project.

Thirdly, I would like to thank Manager of Resources and Environment Department,

Leaders of People’s Committee in Dong Long, Nam Hung, Nam Thinh commune and

dwellers who live in Tien Hai district. They provided good conditions when I conducted

my research.

Last but not least, I would like to thank my family for giving birth to me and

supporting me spiritually throughout my life.

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TABLE OF CONTENTS

I. INTRODUCTION..............................................................................................................1

II. GOAL AND OBJECTIVES..............................................................................................3

2.1. Goals...............................................................................................................................3

2.2. Specific objectives..........................................................................................................3

III. STUDY AREA AND METHODS...................................................................................4

3.1. Study area .......................................................................................................................4

3.2. Study methods.................................................................................................................5

3.2.1. Preliminary survey........................................................................................................................5

3.2.2. Data collection ..............................................................................................................................5

3.2.3. Data analysis.................................................................................................................................7

IV. RESULTS AND DISCUSSIONS ....................................................................................9

4.1. Characteristics of canopy layer.......................................................................................9

4.1.1. Species composition of canopy layer...........................................................................9

4.1.2. Density of trees in canopy layer ................................................................................10

4.1.3. Canopy cover.............................................................................................................12

4.1.4. Characteristics of the growth of mangroves ..............................................................12

4.2. Characteristics of regeneration .....................................................................................................15

4.2.1. Species composition and density of trees regeneration ..........................................................15

4.2.2. Impacts of some factors on regeneration mangrove species..................................................18

4.3. Some solutions for sustainable development of mangroves in Tien Hai district, Thai

Binh province.......................................................................................................................21

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4.3.1. Afforestation................................................................................................................................21

4.3.2. Forest protection .........................................................................................................................23

4.3.3. Policies in forest management and protection .........................................................................23

V. CONCLUSION ...............................................................................................................24

5.1. Characteristics of canopy layer.....................................................................................24

5.2. Characteristics of regeneration .....................................................................................24

5.3. Some ecological factors affect to regeneration.............................................................24

REFERENCES ....................................................................................................................25