what is meant by the unexpected consequences of environmental manipulation

“Selective logging, unless it is practiced at very low harvest intensities, can significantly reduce the biomass of a tropical forest for many decades, seriously diminishing aboveground carbon storage capacity, and create opportunities for weeds and vines to spread and slow down the ecological succession.”

Why is selective cutting more sustainable than clear-cutting?

Selective cutting is more sustainable than clear cutting because in clear cutting the chances of loss of diversity of plant species is more. Also some species native to a region may get extinct by clear cutting.

What is the most likely effect of clearcutting a forest?

“Clear-cutting forests has an effect of mobilizing the carbon, making it more likely to leave the soil and end up in the atmosphere,” says senior author Andrew Friedland, a professor of environmental studies.

What are three stressful environmental conditions found in degraded areas in urban centers quizlet?

Which of the following is a stressful environmental condition found in degraded areas of New York City? The soils are more contaminated, compacted, and disturbed. How might upward growth of cities be a better choice than outward growth?

Surface Mining method of extraction is the most damaging to the environment. It leads to loss of biodiversity or landscape and habitual destruction, soil erosion, pollution especially air pollution, destruction of agricultural land, contamination of water etc.

What are the consequences of excessive mining in an area?

Across the world, mining contributes to erosion, sinkholes, deforestation, loss of biodiversity, significant use of water resources, dammed rivers and ponded waters, wastewater disposal issues, acid mine drainage and contamination of soil, ground and surface water, all of which can lead to health issues in local …

What are the consequences of moving from underground mining to surface mining?

Underground coal mining will cause large-scale surrounding rock movement, resulting in surface subsidence and irreversible deformation of surface morphology, which would lead to geological disasters and ecological environment problems.

Which of the following is a long term consequence of mining the earth?

Some environmental consequences of mining and processing coal deposits are deforestation, land damage, water pollution and hydrological damage, air pollution, noise pollution, ground vibration and rock dispersal, and visual impact.

What was the main consequence result outcome of the Green Revolution?

The Green Revolution resulted in a great increase in production of food grains (especially wheat and rice) due to the introduction into developing countries of new, high-yielding variety seeds, beginning in the mid-20th century.

What are the consequences of Green Revolution Class 9?

Some of the negative impacts of the green revolution were – loss of soil nutrients, large scale use of pesticides, unsustainable practices for getting more yield, increased rates of suicide, etc. Note: In India the green revolution was led by an agricultural scientist by the name of M S Swaminathan.

How did the Green Revolution negatively affect the environment?

The Green Revolution involved the widespread use of chemicals in agriculture that had adverse environmental impacts. The interrelationships between water resources, erosion, pesticides and fertilizers, deforestation, population pressure, and biodiversity, and farmers are individually addressed.

What were the consequences of the mechanization of agriculture?

Increased production

Mechanisation has increased farm production significantly. For example, machines made large-scale land clearance and drainage projects possible, aerial topdressing made steep country productive for the first time, and electric fences allowed farmers to use pasture more efficiently.

Which most damaged topsoil and farming equipment during the 1930s?

Which most damaged topsoil and farming equipment during the 1930s? … Loss of grasses left topsoil loose and unprotected.

How does farming impact the soil?

Agriculture alters the natural cycling of nutrients in soil. Intensive cultivation and harvesting of crops for human or animal consumption can effectively mine the soil of plant nutrients. In order to maintain soil fertility for sufficient crop yields, soil amendments are typically required.

What do you mean by green revolution What have been its consequences?

The Green Revolution in India refers to the series of researches and technological advancements in the field of agriculture. It led to a great increase in the crop produced by using high yield variety seeds, fertilisers, extensive irrigation etc. The Green Revolution greatly impacted the farmers of Punjab.

Which of the following is a consequence of the first agricultural revolution?

The agricultural revolution had a variety of consequences for humans. It has been linked to everything from societal inequality—a result of humans’ increased dependence on the land and fears of scarcity—to a decline in nutrition and a rise in infectious diseases contracted from domesticated animals.

Human Impact | Environment | Biology | FuseSchool

5 Human Impacts on the Environment: Crash Course Ecology #10

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what is meant by the unexpected consequences of environmental manipulation

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