Wetlands are one of the forms of land should be considered, in this chapter we will learn what soil is wet, they are distributed where and with what kind of public land? Not only that we are going to learn about wetland ecological regions in the world and in Vietnam. In contrast to the arid land in wetland areas with regimes like water, their chemistry addresses how also be answered when we study this chapter. With dryland environments organisms have adapted to the harsh life that no water for wetlands, submerged creature will face how to survive in this chapter are made clear. Submerged phenomenon is caused by natural or man-made, when studying this chapter we will be able to answer correctly and will understand the measures that can mitigate wetland area All countries in the world and in Vietnam.
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