According to statistics of the Ministry of AGRICULTURE & rural development, the country's total forest area is 13,118,773 hectares, of which 10,348,591 hectares are natural forests and planted forests is 2,770,182 ha. However, deforestation makes the forest system in our country is increasingly narrow. Watershed deforestation to timber extraction, agriculture, hydroelectric development ... do the vegetation on the basin more lead to the ability to stop the flow, flood the focus more quickly. According to the scientists, the more watershed forest area and forest protective in the central province were leveled in favour of hydraulic power is lost the ability to regulate upstream water when heavy rain, this is a main cause of flooding on more severe
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