Mapping Land Cover Change Of The Coastal Area In Kien Thuy And Do Son Districts Hai Phong Province From 2001 2016

MINISTRY OF AGRICULTURE AND RURAL DEVELOPMENT

VIETNAM NATIONAL UNIVERSITY OF FORESTRY

STUEDENT THESIS

MAPPING LAND COVER CHANGE OF THE COASTAL AREA

IN KIEN THUY AND DO SON DISTRICTS, HAI PHONG PROVINCE

FROM 2001 - 2016

Major: Natural Resources Management

Code: D850101

Faculty: Forest Resources and Environmental Management

Student: Ho Thi Nhu Quynh Student ID: 1253090028

Class: K57 Natural Resources Management Course: 2012 – 2016

Advanced Education Program

Developed in collaboration with Colorado State University, USA

Supervisor: Assoc. Prof. Dr. Tran Quang Bao

Ha Noi, October/2016

ACKNOWLEDGEMENTS

With the consent of Vietnam National University of Forestry belonged to Ministry of

Agriculture and Rural Development faculty, I perform the study: “Mapping land cover

change of the coastal area in Kien Thuy and Do Son Districts, Hai Phong Province from

2001 - 2016”.

With this study, I are extremely grateful for the guidance, advice and the support of

many people. First, I would like to thank most sincerely and deeply to my mentor – Assoc.

Prof. Dr. Tran Quang Bao, who gave helpful advices and strong supports during the

implementation and completion of this study. Secondly, I also would like to give a big thank

to Dr. Nguyen Hai Hoa assisted the thesis to collect data and supported for me during

fieldwork time.

The study could not be finished and achieved result without the enthusiastic

assistance, friendliness, and hospitality of the local government and residents of two

provinces Dai Hop and Bang La, I would like give a big thanks and extreme appreciation to

them.

I also would like to thanks to the teachers of Forest Resources and Environment

Management Faculty, my friends and family who always supported and encouraged me to

perform and complete the study.

Because of the limited study duration as well as lacking awareness and knowledgewe

are looking forward to receiving the comments, evaluation and feedback of teachers and

friends to raise the quality of study and improve not only the professional knowledge but also

the lacking skills of me in this study.

I sincerely thank you!

ABSTRACT

Mangrove forests are among the most important and productive of ecosystems,

provide habitat for wildlife and play an important role in coastal zones, which appear in the

inter-tidal zones along the coast in the tropical and semi-tropical regions, (Wolandski, Brinson

et al, 2009; Tuan, Oanh et al, 2002). Monitoring the change of land cover, the method to

identify which area covert mangrove forest to other land covers, is the more increasingly wide

application in health of mangrove investigation. The main objective of the thesis was mapping

land cover change of coastal mangrove in study site during the period of 2001-2007 and 2007-

2016. Compared two techniques, which are Supervised Classification and Normalized

Different Vegetation Index (NDVI), get the higher accuracy for mapping and monitoring land

cover change in study area. NDVI has the higher precision, around 87.6% (81.6% for

Supervised Classification), which established land cover map with four classes: mangrove,

wetland, water and others (grasses, dykes, road, field and non-identified). . The 15-year

survey showed an upward trend of the percentage of mangrove area, approximately 380ha

(increased 332%) while the proportion of water and wetland area slighly declines

approximately 133ha and 179ha, respectively (declined around 43% and 46%, respectively).

There are a set of causes, in which one reason of this change is government focuses on

mangroves protecting activities and propaganda activities. So, mangroves area and quality

increases continuously and mangrove allocation policy for local people to manage, protect

and obtain benefits from these resources, which increase coastal mangrove forest area but

also. Final reason is international cooperation with developing countries such as Japan. The

main solution discussed in this study is efficient participating of the officials in management

and protection

KEY WORDS

Supervised Image Classification, NDVI, Land Cover Change, Mangrove.

TABLE OF CONTENTS

ACKNOWLEDGEMENTS

ABSTRACT

TABLE OF CONTENTS

ACRNOYMS

LIST OF TABLES

LIST OF FIGURES

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

OBJECTIVES, STUDY AREA AND METHODOLOGY ........................................... 4

1. OBJECTIVES .......................................................................................................... 4

2. STUDY AREA ........................................................................................................ 4

3. METHODOLOGY .................................................................................................. 5

3.1. Data Sources ......................................................................................................... 5

3.2. Field survey method .............................................................................................. 7

3.4. Monitoring the land cover change of coastal area of study area during the period

from 2010 to 2016 ..................................................................................................... 11

3.6. Sociological investigation method ....................................................................... 13

RESULTS AND DISCUSSIONS .............................................................................. 14

1. SPATIAL STRUCTURE AND DISTRIBUTION OF COASTAL MANGROVES 14

1.2 Spatial mangrove structure in Dai Hop commune, Kien Thuy district .................. 15

1.3 Spatial mangrove structure in Bang La commune, Do Son district ....................... 16

2. MAPPING LAND COVER CHANGE .................................................................. 17