Consequences of deforestationDeforestation is one of the causes of environmental contamination, the phenomenon of the Earth warming, famine, floods, elephants put Woods on the village merchant killed people, destruction of property ... as well as ruin the forest products under the forest canopy causing the serious ecological imbalance , leading to the erratic climate change, hurricanes, flash floods, landslides and several types of disease.Worldwide, deforestation causing damage to 45 billion USD/year. According to the latest statistics of the Ministry of the environment, American per year on average in the world have about 33 million ha of forest lost for many different purposes has created more than 1.5 billion tons of CO2 into the environment, takes up to 20% of the man-made emissions causing greenhouse effect the Earth's temperature heats up.It is estimated that with the current deforestation to 2050, up to two billion people, i.e. 20% of the world's population will suffer from water shortages. Most people suffer this lack of water scene live in developing countries. There's also food sources at risk threatened by the water used for irrigation is also becoming scarce.The harmful effects of deforestation in watershed VNAccording to the latest report of the World Food Programme (FAO), VIETNAM is one of the five countries most heavily influenced from the disaster, especially rain storms and floods. Rain storms occur on the territory of VIETNAM is increasing both in frequency and the harmful, are becoming real threats to human life and the development of the economy.Besides the causes such as geographic features, climate change causing floods situation in VIETNAM is becoming more fierce, also a direct cause of human. 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.Mid-October, much of the region has occurred on many successive flood rains caused heavy damage on people and of. Rain flood this time are the functional sector reviews is a new year and draw conclusions, is the source of deforestation by accident. When Woods drained were chopping, the intensity of the floods go fast, make the water level rise very quickly. Trees prevent flooding disasters. When flood waters rise high, forest tree roots and water power will drag-part would flood water. There are forest tree, power support, more powerful wind-forest trees and weaken the power in the storm passing through. 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 seriously.Our country is actively done 2 great program that is national target programs to deal with climate change and the national program on the prevention of natural disasters. The objective at the heart of this program which is planting and forest protection. From the model made until reaching the result is still a distant and unknown to this new gap ever narrows, to avoid risks for themselves and future generations.
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