Things that I have learnt:
At first, the subsidizes for those living in the Can Gio Biosphere was low. When the authority increase it, people volunteer to stay there. They do not need to pay taxes as their income are too low.
The responsibility of the citizens living there is to protect the allocated area of land. The citizens have to patrol the area everyday to ensure that no unauthorized personnel enter the perimeter to cut the trees. When they are people cutting down the trees, the families will go and try to solve the problem on their own. They will call the authority if they could not solve the problem after 3 or 4 hours. If there is case of tree being cut down illegally, the citizen in charge of that area will be fined 1000 Dong. The citizens might be locked in jail if there is a great number of trees being cut down.
A particular family of four living in the Biosphere earn 15 millions Dong and spend 8 million Dong per month. There main source of income is from sales of the shrimp they reared. They spent most of their money on transportation, on buying petrol for their boat. The father will need to sent their children to school in the city everyday. On the way, he will buy the necessary items the family need. The trip to the market in the centre of the city take 20 minutes.
The authority sends boats to send clean water to the family. The family will need to pay 3USD per cubic meter of water. Due to their low income, the family could not afford to buy more water. Currently, the families are asking for more subsidizes. The family rely on solar power for electricity.
In my personal opinions, using petrol for the boats will pollute the environment, contradicting the purpose of the Can Gio Biosphere. The boats that the citizens are using are made out of wood and are not well designed, though it serve its function. I suggest that the government provide boats with motors that use batteries charged by solar power. It will reduce the usage of petrol, the amount of air pollution.