Post on 15-Aug-2015
Course: Ecosystem ManagementInstructor: Truong Thanh Canh
Can Gio Mangrove Biosphere Reserve
Date: January 16, 2015
Part 1: Brief Introduction G e o g r a p h i c a l p o s i ti o n , C l i m a t e a n d r a i n f a l l , Te m p e r a t u r e , To p o g r a p h y. E c o l o g i c a l c h a r a c t e r i s ti c s , S o c i a l A c ti v i ti e s . S t r u c t u r e o f C a n G i o M a n g r o v e E c o s y s t e m
Part 2: Understand Can Gio Mangrove Eco- systems’Structure and its service
R e g u l a ti n g s e r v i c e P r o v i s i o n i n g s e r v i c e C u l t u r a l s e r v i c e S u p p o r ti n g s e r v i c e
Part 3: Resource exploitation for economic purpose
S u s t a i n a b l e d e v e l o p m e n t o f C a n G i o m a n g r o v e e c o s y s t e m s To u r i s t d e v e l o p m e n t E ff e c ti n g o n r e s o u r c e s c o n s e r v a ti o n
Overview
Located about 50 km south of
Ho Chi Minh City
The Boundary
• The north borders Nha Be District
• The south borders East Sea
• The east borders Dong Nai, Vung
Tau Provinces
• The west borders Long An, Tien
Giang provinces
Geographical Position
Climate and RainfallCan Gio climate is tropical monsoonal with two distinctive season:
The dry season: from November to next May
The rainy season : from the end of May to October
1 2 3 4 5 6 7 8 9 10 11 120
50
100
150
200
250
300
350
Month
Rain
fall(
mm
)
Temperature• Average temperature : 270 C
• Maximum temperature: 33.10 C
• Minimum temperature: 22.70C
• Daily vibration amplitude :3-70C
• Monthly temperature amplitude:40C1 2 3 4 5 6 7 8 9 10 11 12
24.5
25
25.5
26
26.5
27
27.5
28
28.5
Month 1 2 3 4 5 6 7 8 9 10 11 12
Temperature 26 25.8 27.5 28 28 27.4 27.3 27.4 27.4 27.0 26.6 26.2
___________________________________________________________________________________________________________________________
TopographyGenerally flat and low-lying with the highest elevation at
Giong ChuaThe terrain of Can Gio is formed by alluvial deposits from six
rivers, Nga Bay, Cai Mep, Go Gia, Thi Vai, Soai Rap and Dong Tranh
(Giồng Chùa mountain- the highest place in Can Gio)
Ecological Characteristics
Many kinds of habitats such as mangroves, wetlands, salt marsh, mud flat and sea
grasses
Receive a great alluvium from Dong Nai river and own unique plants and animals.
=> a food supply for both aquatic organisms and on-land vertebrates
More than 200 animal species and over 40 bird species has been found in Can Gio.
Can Gio is also a “ wall green” to protect the city from storm surges, typhoons
and sea level rise
___________________________________________________________________________________________________________________________
HIGHLIGHT ECONOMIC SCALE
Structure
• Nature forest: 12.000 ha
Cây bàng, mấm (Avicenmiacese), Chà là,..
Living on mound and less water
Planted forest: 20.000 ha
Avicemiaceae, Sounerrtiaceae, Lumnitzera littoria Voigt,..
Planting on alkaline soil and brackish
Structure
• Animals
▫Spineless species: Squill mantis, Meretrix lyrata,…
▫Fishes : cá Ngát, cá thoi loi,…
▫Reptiles : Ophiophagus hannah, Python reticulatus,…
▫Birds : Vạc, Bồ nông,…
▫Mammals : Macaca fascicufaris, Sus scrofa,..
Structure
• Can Gio mangrove forest is a non self-contained ecosystem
• Alluvial and mangrove forest always changes toward the sea
=> higher alluvial soils
• When the land becomes higher than the sea, this soil is suitable for agriculture
• Favorable of geographic location
• The magic of mangroves
• The biodiversity of Cần Giờ forest
• The protection of human
Provisioning Services
The elements help Can Gio forest have ability to provision :
Favorable of geographic location
- Can Gio forest is formed in downstream of Dong Nai river system, at
the Southeast gateway of Ho Chi Minh City
1. North : Dong Nai
2. South : the East Sea
3. West : Tien Giang, Long An
4. East : Ba Ria-Vung Tau
Provisioning Services
The biodiversity of Can Gio forest
•157 species of plant
•100 species of bottom invertebrate animals
•Over 120 species of fish
•145 species of birds
•Crocodile, monkey, boar
Provisioning Services
Tourism Foreign Tourist
9%
Domestic Tourist91% Benefits from Tourism
in Can Gio Mangrove Forest per year
Total Profit = 3,472.8 million VND
Domestic = 3,148 million VND
Foreign = 324.8 million VND
Cultural Services
Recreation
Jobs:
Rearing: fishes and marine product…
Growing: forest, germinating transplants
Tour guide
Tutors for trainee or students
Raising the income of native people in Can Gio District.
Cultural Services
• Rearing Shrimp:Profit = 700 million VND/ha
(2014)
Farmer’s income goes up
(about 38.2 million/ person/ year)
Recreation
Cultural Services
Education
•Program for introducing ecosystem in Can Gio for students in high school and university.
•Good condition and best place for students to research and
practice.
Cultural Services
Sources for medicine
Acrostichum aureum
Rhizomes Tender leaves
Wound and boils Boiled in water and the liquid is given as antidote to poison victims
Cynometra ramiflora
Leaves, Roots, fruits
- Ingredient of a medicine used for skin diseases - A lotion form leaves is applied externally in leprosy scabies Purgative oil from fruits and roots for leprosy
Cultural Services
•Provision of wildlife habitat
•Sediment trapping & nutrient retention and export
•Provide fuel wood and building materials
•Erosion prevention
Supporting Services
Evaluate the impact of economic activities on the environment
Sustainable development of Can Gio mangrove ecosystems
- Self-purification of the mangrove forest.
- Tolerance to pollution.
Evaluate the impact of economic activities on the environment
- Pay attention to construction activities.
Regrarding to staff management and eco tourism guide
- Make plans to protect and
develop mangrove forests.
Regarding to locals
- Invited representatives of local participation in nature conservation
projects.
Regarding to locals
- Organization of environmental education classes for local residents to raise
their awareness of the importance of ecology and environment
The sea encroaching system in combination with Can Gio’s urban and Tourism.
▫The sea encroaching area: 600 ha
▫Using clean energy
▫Minimizing manufacturing
Tourist development
Agriculture ecotourism:
Bình Khánh, An Thới Đông,Tam Thôn Hiệp
and Lý Nhơn Commune
Forest ecotourism:
(area 42.000 ha)
Long Hòa, An Thới Đông and Lý Nhơn
Commune
Sea ecotourism:
Cần Thạnh Long Hòa, Thạnh An Commune,
Giồng Chùa
3 main functional areas
2 works having the biggest effect in developing urban and tourism •The expansion Sac Forest Project, openning arterial
route linking the central Ho Chi Minh City
• The providing fresh water project
17.8% the average number of visitors
Tourism 24%
Commersal business
14 – 46%
1,200,000 visitors
10% foreiners
30 investors registered for
31 projects in amusement parks, entertainment and
tourist attractions
Tourist development
Total Value of Production in Can Gio
Fishery Handicraft Agriculture Transportation & postal
Contruction Commerical & Services
0.00%
5.00%
10.00%
15.00%
20.00%
25.00%
30.00%
35.00%
EFFECTING ON RESOURCES CONSERVATION
• Can Gio mangrove forest enhances local resident’s standard life. • The recovered mangrove forest is having some positive direct effects to people living
nearby. + Growing forest, salt producing, forest tending + Provided more jobs for labor + Poverty rate had decreased to 25.7 percent + 100 percent people use clean water
• Farming, prawn industry, offshore fishing, oysters, clams are the main sources of people’s income.
EFFECTING ON RESOURCES CONSERVATION
• Can Gio’s government appointed some household to protect the mangrove forest.
• Local people already perceive the important role of forest to their life.
• Play as a South East Ho Chi Minh’s lung.
•An ideals place for tourist and scientist get to know more about biodiversity.
EFFECTING ON RESOURCES CONSERVATION