Some Solutions To Rehabilitate The Stands Of Castanopsis Boisii Hickel Et A Camus Forest In Hai Duong Province

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Some solutions to rehabilitate the stands of Castanopsis boisii Hickel et A. Camus forest

in Hai Duong province

Sturdent: Nguyen Minh Hien; Advisor: Bui The Doi

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ACKNOWLEDGEMENTS

I would like to express my very great appreciation to Prof. Bui The Doi from Vietnam

Forestry University, my research supervisor, and Dr. Nguyen Tuan Dung, my research co￾supervisor, for their enthusiastic encouragement and useful critiques of this research work.

Without his thoughtful, patient guidance through every step of my research, this thesis could

not have been realized

I would like to extend my thanks to Mr. Hoang Duc Luu, the Forest Management

Committee of Hai Duong province for accepting the responsibility of my research in the

location as well as for his useful and constructive recommendations on this project.

Many other people have contributed to the success of this thesis but I would like to

particularly thank my parents and classmates from K57-CTTT for their support. Last but not

least this thesis could have never been complete without the support of Forest Resources and

Environment Management Faculty of Vietnam National University of Forestry always

encouraged me during the entire process of studying and doing research

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ABSTRACT

This study was conducted to provide several biological characteristics of Castanopsis

boisii such as ability to provide high nutrient food. Several methods have been used to do

field work and data analysis. The basic data analysis indicated that Castanopsis boisii stand

did not only help local people reduce poverty, increase their income and living condition, but

also help improve the beauty and environmental value for regional landscape. According to

the result analyses, I found several solutions to rehabilitate Castanopsis boisii species,

followed by recommendations to effectively and sustainably develop this species in the study

region.

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TABLE OF CONTENTS

ACKNOWLEDGEMENTS

ABSTRACT

TABLE OF CONTENTS

LIST OF TABLES

LIST OF FIGURES

ACRONYMS

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

CHAPTER 1. LITERATURE REVIEW................................................................................. 3

1.1. In The World ................................................................................................................... 3

1.2. In Vietnam ...................................................................................................................... 3

1.3. Characteristics of Castanopsis boisii ................................................................................ 4

1.3.1. Morphological characteristics ....................................................................................... 4

1.3.2. Ecological characteristics ............................................................................................. 5

CHAPTER 2. STUDY GOAL, OBJECTIVES AND METHODLOGY .................................. 6

2.1. STUDY GOAL AND OBJECTIVES .............................................................................. 6

2.1.1. Goal ............................................................................................................................. 6

2.1.2. Specific objectives........................................................................................................ 6

2.2. METHODLOGY ............................................................................................................ 6

2.2.1. Secondary data collection ............................................................................................. 6

2.2.2. Fieldwork ..................................................................................................................... 6

2.2.3. Interview .................................................................................................................... 12

2.2.4. Data analysis .............................................................................................................. 13

CHAPTER 3. OVERVIEW OF NATURAL AND SOCIAL - ECONOMIC CONDITIONSS

OF STUDY SITE................................................................................................................. 14

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3.1. NATURAL CONDITION ............................................................................................. 14

3.1.1. Geographical location ................................................................................................. 14

3.1.2. Topography ................................................................................................................ 14

3.1.3. Climate....................................................................................................................... 14

3.1.4. Hydrological .............................................................................................................. 15

3.1.5. Land resources ........................................................................................................... 15

3.2. SOCIAL ECONOMIC CONDITIONS .......................................................................... 15

3.2.1. Population .................................................................................................................. 15

3.2.2. Economy .................................................................................................................... 16

3.2.3. Infrastructure .............................................................................................................. 16

CHAPTER 4. RESULTS AND DISCUSSION..................................................................... 17

4.1. Characteristics of the study site ..................................................................................... 17

4.1.1. Topography ................................................................................................................ 17

4.1.2. Climate....................................................................................................................... 17

4.2. Characteristics of Castanopsis boisii stand ..................................................................... 20

4.2.1. Mature trees ............................................................................................................... 20

4.2.2. Distribution of mature tree layer bases on the height and diameter .............................. 22

4.2.3. Distribution of regenerated trees bases on the height .................................................. 23

4.2.4. Origin of regeneration ................................................................................................ 23

4.2.5. Shrubs vegetation ....................................................................................................... 25

4.3. Castanopsis boisii stand value ....................................................................................... 26

4.3.1. Economic value of Castanopsis boisii forest in study site............................................ 26

4.3.2. Environment value and other value of Castanopsis boisii forest in study site .............. 26

4.4. Some solutions to rehabilitate Castanopsis boisii ........................................................... 27

4.4.1 Adjusting the canopy cover ......................................................................................... 27