Tuesday, June 4, 2019

Impacts of Green Revolution on Environment

Impacts of Green R growing on EnvironmentEffects of green revolution on environmentGreen revolution refers mainly to dramatic increases in cereal grain yields in most of the developing countries. It can also be defined as the renovation of rude practices which began in Mexico in the 1940s. it started spreading to other parts of the globe in the 1950s and 1960s as a result of the success in producing more(prenominal) agricultural products and and so increasing the amount of calories produced per acre of agricultural land. Researchers in Mexico developed broadly adapted, short stemmed and disease resistant wheats that did extremely well in converting fertilizers and water into high yields. The seeds improved were instrumental in boosting Mexican wheat production and averted famine in India and Pakistan. The abandoning of the chemical kitchen-gardening to adapt the organic farming which is fossil fuel driven has resulted to amazing increases in productivity , restoration of deplet ed soils, returning vibrant health for the farmers which had been affected by the chemicals in the fertilizers and pesticides and a greater diversity of crops both within and between species. Green revolution has led to a situation where the worlds population can harvest more than 90% of its food calories from a meager 15 species of crops.Green revolution had also positive sparing results. Since crops under high yield varieties exigencyed more water, more fertilizer, more pesticides, fungicides and other certain chemicals. This spurred the growth of the local manufacturing sector such industrial growth created invigorated jobs and contributed to the countries gross domestic product. The increase in irrigation created need for new dams to harness water. The water stored was used to create hydroelectric power and this in turn boosted industrial growth, created new jobs and improved their standards of living.Green revolution had prejudicial refers. Despite the rapidly expanding gl obal food supplies there is also a large population still starving. This technology was made available only to sizable but the poor farmers were left out due to the expenditure incurred in adapting the new technology. The poor farmers cant afford to buy fertilizers and other input in volume, water is a limiting factor in the farming and irrigation is out of reach for the poor farmer since they cant afford. The use of chemical fertilizers depletes the soils natural stinkiness and pesticides generates resistant pests farmers need more fertilizers and pesticides to achieve the same results.Green evolution is not ecologically sustainable. Researches conducted showed that after achieving dramatic increases in the early stages of the technological transformations yields began go in several green revolution areas. An example is in Philippines, Central Luzon where the rice yields grew steadily during the 1970s got to its peak in the early 1980s and the yields tolerate been decreasing st eadily since then. Due to green revolution we have lost many of our agricultural biodiversity .when the farmers opted to nominate the new improved crop varieties and raise the new cross breeds of livestock many traditional local varieties became extinct. The widespread use of pesticides and other agro-chemicals has lead to severe environmental degradation and endangered public health. The global use of chemicals fertilizers has degraded the soil which results to loss of humus the soil becomes cracked sand the water retaining capacity decreases. Green revolution was an expensive technology and hence for them to adopt it they had to get credit facilities and some ended up into large debts.Large shield monoculture farming is the growing of one single crop image over a wide area. Monoculture can lead to wide spread of diseases and affects the soil fertility since the continuous depletion one a particular nutrients from the soil without change. In monoculture cycles of nutrients, wat er, power and wastes have become open opposed to closed as in a natural ecosystem. Despite the substantial amounts of crop residues and manure produced in farms, it has become more and more difficult to recycle the nutrients in the agricultural system. Animal wastes cannot scotchally be recycled to the land in a nutrient recycle process because the production systems are remote geographically from the other cycles which can complete the cycle. Soil fertility is the key factor in the green evolution technology .the high yields achieved due to green evolution is geared by fertile soils which results due to use of chemicals .wide spread of green evolution and large racing shell monoculture has resulted to soil infertility such that the soil cannot produce on its own.Large scale monoculture has lead to increased yields due to lack of competition from other plant species but as time goes by the soil fertility of land/soil reduces due over exhaustion. Large scale is monoculture has inc reased recently and is boosting the prudence due to high yields but it is posing danger in the future due to increased soil infertility.Apart from green evolution and large scale monoculture there are other ways which can be used to ensure sustainable food to the worlds growing population. Sustainable agriculture can proffer a solution to the problem of limited resources and the challenge to achieve global food security. There are three sides to sustainable agriculture. Sustainable agriculture has environmental, economic and social dimensions and all of these must be considered. Focusing ad upgrading the natural environment is fundamental and dealing with issues like climate change, water scarcity, soil degradation, energy and biodiversity. The social dimension of sustainable agriculture encompasses labor rights and health of communities inclusive of access and affordability of food, community health and labor rights. Sustainable agriculture on the economic side is productive, com petitive and efficient. Sustainable agriculture practices and programs help businesses in ensuring a reliable try of food and open new opportunities.This essay described the impact of green revolution on the environment. Climate change effects for agriculture are serious in that crops are exposed to quite different conditions from those type them and hence productivity is greatly affected. Maximize land use by doing land reclamation .the availability of fertile land will be of the essence(p) for healthy crops and livestock and also promotes biodiversity, filtering and efficient use of water, avoiding nutrients run-off. Fertile land acts as a carbon sink minimizing the forces of climate change. Pest management is intrinsic for preserving the abundance and diversity of native species and for ensuring the quality and agricultural yields sustainability. Biodiversity protection has main concerns in various agricultural practices and businesses are exploring ways to be productive as w ell as maintaining and upgrading biodiversity. The social aspect of ensuring sustainable agriculture is by ensuring that farmers receive returns which are fair, and that high quality labor conditions exist throughout the kitchen stove of supply. Access to education, training and health for laborers and their families can be facilitated by businesses. Ensuring sustainable agriculture can also be achieved by maintaining a food supply which is safe .by doing this a goal of the majority of various producers, distributors and processors is achieved. By ensuring animal welfare is maintained agricultural sustainability can be achieved. Livestock being the key element of farming they play a vital role in meeting both productivity and sustainability objectives.

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.