The incredible scale of this loss has led to significant changes throughout many parts of the world, and in recent years these changes have been accelerating.
What are the major Consequences of Deforestation? An undisturbed terrestrial ecosystem naturally develops into a sparse or dense forest. Factors like, humidity, temperature, rainfall and soil types etc.
Those very factors of abiotic environment which influence and shape a forest are also in turn modified by the population of living organisms within the system.
Deforestation involves removal of plant biomass which cripples the system. Various useful products such as firewood, timber, honey, fruits, nuts, resins and medicinal plants etc. A chain of events is set into motion the consequences of which can be summed up as follows: Soil degradation and erosion 2.
Changes in climatic conditions 3. Destruction of natural habitats. Destruction of a valuable sink for environmental pollutants. Plants check rapid movement of air and water.
Flowing waters stay in the area for a longer duration during which time nutrients are re-absorbed and as water percolates down, ground water table is recharged. Plant cover keeps the ground surface humid.
Trees with the help of deep root systems are able to draw water from sub-surface water table. Humidity prevents excessive water loss and rapid desiccation. Plants contribute organic matter which upon decomposition adds humus to the soil.
Porosity, water-holding capacity and productivity of the soil improve. Organic matter binds the soil particles in soil crumbs which make it more stable again forces of erosion.
Deforestation leaves the ground surface bare. In humid tropics a large portion of available mineral nutrients is taken away when the biomass is removed. Herbaceous plants and grasses are exposed to the action of sun, wind and rapidly flowing waters.
There is further loss of mineral nutrients. Grazing may remove much of the organic matter with which there is further loss of nutrients.
Where remaining vegetation is burned to clear the land and agriculture attempted loss of nutrients is even more rapid. Already poor tropical soil is made poorer. All this further reduces the cover of small plants and grasses as well. Adequate plant cover keeps the soil temperature lower.
At all depths up to 70 cm a higher temperature is observed in soil devoid of plant cover. Higher temperatures speed up mineralization of organic matter. This reduces the stability of soil crumb structure and the soil becomes easily erodible.
It also loses its capacity to hold water, recycle mineral nutrients, nitrogen-fixing capacity etc. With plant cover gone the battering action of wind and rains loosen the top soil which is thus carried along with water or air currents and deposited elsewhere.
The top soil which is thus lost is irreplaceable. Nature takes about years to produce 2. India loses about million tons of soil every year. Of this enormous amount nearly million tons get deposited in stream and river beds, about million tons get lodged in dams and reservoirs and the rest is flushed into the sea Gurmel Singh qouted by Venkataramani, This has curtailed the life-span of our multipurpose, multimillion crore rupee reservoirs drastically.
The life of Ramganga reservoir in the Gangetic watershed has been curtailed to about one-fourth of its originally intended span of existence Venkataramani, Massive soil erosion aggravates flood situation in two ways.
Firstly, the deposition of silt and sediments in river beds makes them shallow.
Secondly, land devoid of forest cover loses its water holding capacity. About 10 million hectares of forested land can hold enough water to fill completely a reservoir as large as that of Bhakhra-Nangal dam.Causes of deforestation include; commercial logging, clearance for agriculture, roads and railways, forest fires, mining and drilling, fuelwood, and clearing land for living are just some of the main reasons, of which we have not found the worst culprit.
Learn the causes, effects, and solutions you can contribute to help stop deforestation. Forests are vital to our Earth. Trees purify our air, filter our water, prevent erosion, and act as a . Countries with significant deforestation in included Brazil, Indonesia, Thailand, the Democratic Republic of Congo and other parts of Africa, and parts of Eastern Europe, according to GRID-Arendal, a United Nations Environment Program collaborating center.
The country with the most deforestation is Indonesia. What are the major Consequences of Deforestation? A rise in global temperatures, howsoever mild, could cause serious problems for the mankind. Vegetation acts as an effective sink for a number of undesirable constituents of the environment.
Deforestation not only destroys this sink but also reduces soil's capacity to eliminate. Landfills produce foul smell when burned and cause huge environmental degradation. 5. Deforestation: Deforestation is the cutting down of trees to make way for more homes and industries.
Rapid growth in population and urban sprawl are two of the major causes of deforestation. Apart from that, use of forest land for agriculture, animal grazing, . Find out the causes, effects, and solutions to deforestation. Modern-Day Plague Deforestation is clearing Earth's forests on a massive scale, often resulting in damage to the quality of the land.