(1) organic agriculture in the production of agricultural products at the same time, focusing on the establishment of ecological balance, to prevent pollution from the external environment, to avoid endogenous pollution of agriculture, for the promotion of sustainable development of agriculture has an important role, especially for the location of the ecological environment of the underdeveloped areas of the development of agricultural production, and to promote the farmers to increase the significance of the far-reaching. (2) The core of organic agriculture is soil conservation methods, prohibiting the use of synthetic fertilizers and pesticides, which is conducive to improving the ecological environment and protecting ecological diversity. (3) Organic agriculture can sequester carbon in the soil, helping to reduce the greenhouse effect and global warming. (4) Organic agriculture does not allow the use of genetically altered organisms at any stage of production, processing or handling, promoting the conservation of natural resources and genetic diversity.
Long-term sustainability: Many environmental changes occur slowly over time. Organic agriculture takes into account the medium- and long-term impacts of agricultural interventions on agro-ecosystems. Organic agriculture both produces food and establishes an ecological balance that prevents soil fertility problems or pest problems. Organic agriculture takes proactive measures rather than dealing with problems after they have occurred. Soil: At the heart of organic agriculture are soil conservation methods such as crop rotation, intercropping, ****growth associations, cover crops, organic fertilizers, and minimum tillage systems. These methods encourage the growth of soil flora and fauna, improve soil formation and structure, and create a more stable farming system. In turn, they increase nutrient and energy cycling, improve the soil's ability to hold nutrients and retain water, and fill in the gaps left by mineral fertilizers. Such management techniques also play an important role in soil erosion control: reducing the time the soil is exposed to erosive forces, increasing soil biodiversity, reducing nutrient losses, and helping to maintain and improve soil productivity. Nutrient uptake by crops is usually compensated for by renewable resources on the farm, but sometimes it is necessary to supplement organic soils with outside sources of potassium, sulfur, calcium, magnesium, and tracer elements. Water: Groundwater contamination from synthetic fertilizers and pesticides is a major problem in many agricultural areas. Organic agriculture prohibits the use of synthetic fertilizers and pesticides and replaces them with organic fertilizers (e.g., compost, livestock manure, green manure) and the use of biodiversity (cultivated varieties and long-term vegetation), which improves soil structure and water infiltration. The increased capacity of well-managed organic agriculture to retain nutrients greatly reduces the risk of groundwater contamination. In some highly polluted areas, *** (e.g. France and Germany ***) conversion to organic agriculture is strongly encouraged as a recovery measure. Air: Organic agriculture reduces the use of non-renewable energy by reducing the need for agrochemicals (the production of agrochemicals requires large amounts of fossil fuels). Organic agriculture helps mitigate the greenhouse effect and global warming by sequestering carbon in the soil. Many of the management practices used in organic agriculture (e.g., minimum tillage, returning straw to the soil, planting cover crops, crop rotations, and greater incorporation of nitrogen-fixing legumes) allow more carbon to be returned to the soil, increasing productivity and contributing to carbon storage. Biodiversity: Organic farmers are custodians and users of biodiversity at all levels. At the genetic level, traditional and improved seeds and varieties are popular for their resistance to diseases and harsh climates. At the species level, different combinations of plants and animals optimize the recycling of nutrients and energy for agricultural production. At the ecosystem level, organic farmland maintains natural environments free of chemical inputs, creating favorable habitats for wildlife. The frequent use of underutilized varieties (often rotated to enhance soil fertility) reduces the erosion of agrobiodiversity and creates a healthier gene pool - the basis for future adaptation. The provision of food and shelter and the absence of pesticides attracts new or recolonized varieties to organic farming areas (long-term and migratory), including wild plants, animals (e.g., birds) and organisms that benefit organic agriculture, such as pollinators and natural enemies of pests. Genetically Modified Organisms (GMOs): Organic systems do not allow the use of GMOs at any stage of organic food production, processing or handling. Since the potential environmental and health impacts of genetically modified organisms are not yet fully understood by humans, organic agriculture is cautious and encourages the use of natural biodiversity. Therefore, the organic label certifies that genetically modified organisms are not consciously used in the production and processing of organic products. This cannot be guaranteed for conventional products, as most countries do not yet require the labeling of food products containing genetically modified organisms. However, due to the increasing use of GMOs in conventional agriculture and the way these organisms are transmitted in the environment (e.g. through pollen), there is no guarantee that organic agriculture will in the future be completely free of GMOs in organic products. The FAO publication Genetically Modified Organisms, Consumers, Food Safety and the Environment explores GMOs in detail. Ecological services: OA's impact on natural resources contributes to interactions within agro-ecosystems; these interactions are critical for both agricultural production and natural resource conservation. Ecological services generated include soil formation and amendment, soil stabilization, waste recycling, carbon sequestration, nutrient recycling, predation (pests), pollination and habitat. By choosing organic products, consumers use their purchasing power to promote less polluting agricultural practices and reduce the environmentally hidden natural resource degradation costs of agriculture.
What are the environmental benefits of developing organic agricultureOrganic agriculture is ecologically sound and sustainable good agriculture, and the development of organic agriculture is conducive to the protection of soil and water environmental resources
What are the benefits of the development of organic agriculture to society?
Soil: At the heart of organic agriculture are soil conservation methods such as crop rotation, intercropping, ****-growth linkages, cover crops, organic fertilizers, and less-tillage systems. These methods encourage the growth of soil flora and fauna, improve soil formation and structure, and create a more stable farming system. In turn, they increase nutrient and energy cycling, improve the soil's ability to hold nutrients and retain water, and fill in the gaps left by mineral fertilizers. Such management techniques also play an important role in soil erosion control: reducing the time the soil is exposed to erosive forces, increasing soil biodiversity, reducing nutrient losses, and helping to maintain and improve soil productivity. Nutrient uptake by crops is usually compensated for by on-farm regeneration, but sometimes it is necessary to supplement organic soils with outside sources of potassium, sulfur, calcium, magnesium, and tracer elements.
Water: Groundwater contamination from synthetic fertilizers and pesticides is a major problem in many farming areas. Organic farming prohibits the use of synthetic fertilizers and pesticides and replaces them with organic fertilizers (e.g., compost, livestock manure, green manure) and the use of biodiversity (cultivated varieties and long term vegetation), which improves the structure of the soil and the infiltration of water. The increased ability of well-managed organic agriculture to retain nutrients greatly reduces the risk of groundwater contamination. In some heavily polluted areas, *** (e.g. France and Germany ***) conversion to organic farming is strongly encouraged as a recovery measure.
Air: Organic agriculture reduces the use of non-renewable energy sources (agrochemical production requires large amounts of fossil fuels) by reducing the need for agrochemicals. Organic agriculture helps mitigate the greenhouse effect and global warming by sequestering carbon in the soil. Many of the management practices used in organic agriculture (e.g., minimum tillage, returning straw to the soil, planting cover crops, rotating crops, and incorporating more nitrogen-fixing legumes) return more carbon to the soil, increasing productivity and contributing to carbon storage.
Biodiversity: Organic farmers are custodians and users of biodiversity at all levels. At the genetic level, traditional and improved seeds and varieties are popular for their resistance to diseases and harsh climates. At the species level, different combinations of plants and animals optimize the recycling of nutrients and energy for agricultural production. At the ecosystem level, organic farmland maintains a natural environment free of chemical inputs, creating favorable habitats for wildlife. The frequent use of underutilized varieties (often rotated to enhance soil fertility) reduces the erosion of agrobiodiversity and creates a healthier gene pool - the basis for future adaptation. The provision of food and shelter and the absence of pesticides attracts new or recolonized species to organic farming areas (long-term and migratory), including wild plants, animals (e.g., birds), and organisms that benefit organic agriculture, such as pollinators and natural enemies of pests.
What is organic farming and is there growth in organic farming?The so-called organic agriculture is "to comply with certain organic agricultural production standards, in the production of biological and its products obtained without genetic engineering, not to use chemically synthesized pesticides, fertilizers, growth regulators, feed additives and other substances, to follow the laws of nature and the principles of ecology, to harmonize the balance of planting and aquaculture, and the use of a series of sustainable agricultural technology to maintain a sustainable and stable agricultural production system, to maintain a stable agricultural production system. maintain a sustained and stable agricultural production system of an agricultural production method." And organic agriculture whether there is development, from the signs of recent years to observe, organic agriculture has a lot of space for development, like IT leading boss NetEase CEO Ding Lei, Lenovo CEO Liu Chuanzhi, these very business-minded successful people have also invested in organic agriculture, visible it is a trend of development, coupled with the fact that people's standard of living is now improved, the concern for health is also growing, and organic agriculture is a healthy Synonymous with health, based on these circumstances, the development of organic agriculture is very optimistic.
What are the benefits of a good climate for agricultural developmentThe benefits of a good climate for agricultural development
1, to provide sufficient light for crop growth, to ensure that the crop can fully photosynthesize
2, to provide sufficient water for crop growth, to ensure that the crop grows to get enough nutrients
3, to provide sufficient heat for crop growth, to ensure that the crop can fully grow
3, to provide sufficient heat for crop growth, to ensure that the crop can fully grow. Ensure that crops can grow fully
4, no cold waves, wind, drought and floods and other meteorological and climatic disasters
I hope this helps you.
What are the benefits of the development of science and technologyScience and technology is a double-edged sword
The development of science and technology is much faster than we can imagine, which is a result of the increase in productivity, but also for the further increase in productivity to create the conditions. Because of this, Comrade Xiaoping asserted that science and technology are the first productive forces. However, not everyone hails the rapid development of science and technology. On the contrary, there are quite a lot of people, adhere to such a point of view: science and technology is a double-edged sword, it can both benefit mankind, but also may bring disaster to mankind.
First, banks now use high-tech equipment such as computers to help work, which not only improves the efficiency of work, reduce the staff's work intensity, but also convenient for customers. However, the widespread use of computers has brought about another kind of problem: some criminals use a variety of high-tech means to destroy the computer network, theft of confidential bank documents, violation of the interests of depositors, to obtain illegal benefits. Especially disturbing is that, with the improvement of technology, this so-called high-tech crime is more and more, so that people have a kind of "Taoist high feet, the devil is high" feeling. Another example is that Einstein's theory of relativity plays a very important role in the peaceful use of atomic energy and in solving the energy crisis of mankind. However, the atomic bomb, which is extremely lethal, has been produced under the guidance of this theory, and it has brought a greater crisis to mankind. Similar phenomena have provided evidence for those who support the view that "science and technology are double-edged swords". Therefore, when scientists successfully bred "cloned sheep" at the end of the last century, some people did not cheer, but worried. It should be recognized that there are reasons for this concern, but it is not conducive to the advancement of science and technology. For example, cloning technology can be used in many ways, such as organ transplants, to relieve the pain of many patients. However, many countries have banned or restricted the development of cloning technology because of the fear that it might be exploited inappropriately. Will this become a new kind of "choking off food"? Is science and technology the first productive force or a double-edged sword?
To answer these questions clearly is not an easy task, first we need to be clear about what science and technology are. To this question, the textbook this answer: science is a human knowledge system to understand nature, is a human conquest and transformation of nature of a spiritual force. Technology is the production process of labor means, technology methods, is people's scientific knowledge, labor skills and production experience of the physical form.
"Science and technology is a double-edged sword" is a strange phenomenon, so some people oppose the development of science and technology phenomenon. This can be illustrated by the simplest example: in many cases, the use of a certain technology requires the payment of a patent transfer fee to the owner of the technology. If you don't pay, you can't use it, let alone serve it. And in a competitive society where the strongest of the weak are prey to the strongest of the strong, wouldn't the strongest of the strong pose a threat to the weakest of the weak who don't have access to the technology?
What is science and technology if not a double-edged sword?
Science and technology - a double-edged sword
Of course, too few of the technological achievements derived from scientific knowledge are purely evil. The vast majority of them can be used for the benefit of society, but they can also be used to harm society and hurt people. That's why "double-edged sword" is the most accurate metaphor for them.
An example of a double-edged sword is the use of scientific inventions for world domination. One of the earliest depictions of a scientific madman was Verne. In The Master of the World, he describes Robille, a madman who is invisible in a crater. He invented the amphibious vehicle as a means of domination. Verne, however, was a loyal elder, and could never get the bad guys right. The image of the "world's master Robiel" is also very funny.
In Wells's The Invisible Man, Griffin goes on a rampage and calls himself "The Invisible Man". However, he doesn't even get to rule a remote English village before the villagers round him up and kill him as a monster.
In The Great Dictator, the Soviet writer Belyaev portrayed a typical scientific maniac. German psychologist Steiner, who had long studied the transmission of information between animals, finally invented a device to directly control the minds of others with brain waves. He leaves the scientific world and mixes with the financier Gottlieb, controlling first Gottlieb and his main assistants, then business rivals, and even being able to create stock market turmoil for his profit. Finally, when Steiner's plot was uncovered, he actually used this weapon against the armies of several countries, sending the attacking armies scattering in disbelief. It was only when attacked by their Soviet counterparts with an equivalent weapon that Steiner's plot failed. Soviet scientists, on the other hand, have transformed the instrument that controls the minds of others into a tool for the benefit of mankind: it greatly speeds up the transfer of information between individual human beings, coordinates collective labor, and even allows an orchestra to cease to have a conductor.
As Nanyuan Zhao once said, catastrophes and havoc created by moral and religious fanatics have occurred throughout history and abound in reality. But the scientific maniacs only appear in Hollywood sci-fi horror movies. So, in the late modern period, the people who use science for evil in the writings of science fiction writers are no longer the maniacs who move about trying to control the world. These evildoers want to achieve some more specific, less far-reaching, but more realistic goals through the new technologies at hand.
Robin Kirk is best known for his "medical horror" novels. The Death Hormone is one of his science fiction medical horror novels. The Death Hormone is a hormone inherent in the human body, secreted by the pituitary gland, like growth hormone, but only after the cessation of sex hormone secretion. Medical scientist Hayes was inspired by Pacific salmon, which die immediately after spawning. Hayes eventually extracted the death hormone trigger from the salmon's head. Injected into the organism, it causes an immediate and massive release of the death hormone.
Hayes works for a large membership health center. A number of successful, middle-aged men join the health center in order to receive lifelong health care treatments. However, for some time now, there have been a number of sudden deaths of middle-aged people. All of them had bad habits of smoking and drinking, but their experience before entering the health center showed that they were still in normal physical condition. At the time of their deaths, they were all extremely cardiovascularly aged. This list of deaths eventually included Hayes himself. These apparently normal deaths aroused the suspicion of Dr. Jetson. After repeated investigations, he finally discovers that it was Shirley and others at the health center who secretly administered Hayes' extracted death hormone inducer to these people to make them die sooner, so that they wouldn't be forced to provide free medication in large quantities when these people aged.
At the end of the novel, several book characters directly discuss the good and evil of science and technology in relation to the death hormone issue, and whether to set up laws to constrain scientists so that they can't invent at will. This shows that the author has a conscious awareness of the good and evil issues of science when creating.
At the end of the nineteenth century, skyscrapers were born in the United States and soon became a symbol of the combination of technology and wealth. In the second half of the twentieth century, many countries and regions in East Asia joined the skyscraper race, the speed of high-rise buildings erected, with the "spring" to describe the fear is not excessive. The high cost burden and disaster risks brought about by skyscrapers have also become the focus of attention. The novel "Skyscraper Fire" is based on this theme.
When the novel came out, the world's tallest building was the Sears Tower in Chicago. In the story, the author fictionalized the new world's tallest building, located across the street from the Sears Tower, so that at the end of the novel, the rescue team can set up a steel cable between the Sears Tower and the "world's tallest building" to save people. The owner of the World's First Building cuts corners in order to meet the deadline, resulting in overloaded electrical circuits and a dark fire on the day of the opening ceremony. The characteristic "chimney effect" of the skyscraper caused the fire to spread upward, floor by floor, to the top floor. There, hundreds of dignitaries were celebrating. Due to the lack of security and other reasons, by the time people find the fire, it is already impossible to extinguish.
The work's concerns about fire hazards in skyscrapers came through the mouth of the fire chief. After the fire, the fire marshal came to the scene, met the architect, and questioned the latter, "You know that the current fire fighting technology can do nothing about fires above seven floors, why do you still want to build such a high building? And at the end, he said something even more horrible: Today is not bad, only 200 people died. In the future, similar fires will kill thousands of people. Only then will you know what kind of buildings you should build! The movie was filmed in the 1980s, and more than a decade later, this horrific prophecy fell on the Twin Towers of the World Trade Center, where the Pentagon suffered far fewer casualties than the World Trade Center in the 9/11 attacks. If it weren't for the high-rise buildings, the 9/11 attacks could have been a magnified Lockerbie.
The novel was later adapted into an influential movie with a large cast. Only the novel ended with many people, including the governor, not escaping the fire. The movie, on the other hand, added a brighter ending: rescuers blew up a water tank on the roof of the building and doused the blaze. But that wasn't reality. The water in the rooftop water tower was a drop in the bucket for a blaze like the one on 9/11.
In 1972, humanity crossed the threshold of genetically modified technology at Stanford University. It unleashed an almost limitless possibility: mixing genes from different species according to human needs to create new species not found in nature. As soon as gene technology was introduced, it was immediately used in agricultural technology to create a large number of new species. While providing high-yielding crops, they have also created a major furor against the acceptance and *** of GM crops. A recent fiasco in Wuhan, where farmers destroyed a GM experimental field, shows that this *** trend has now blown into the country. The short sci-fi book "Act for Heaven" is based on GM crops.
In this novel, the American MSD Biological Company invested two billion dollars to successfully develop the "magic king strain" of wheat. It is high-yielding, disease-resistant and of excellent quality. In order to prevent farmers from keeping the harvested wheat seeds, MSD mixed in the genes of the magic king wheat with the toxic protein gene that leads to infertility. This way, any second-generation wheat seeds will not be able to grow without a special solvent that the company has secretly mastered to inhibit the toxic protein gene. As a means of protecting its intellectual property, this was no excuse, and a low-level MSD employee was responsible for marketing it to the Shaanxi region of China. The first year's harvest was so good that the next year, some farmers secretly kept it in their fields, resulting in the loss of a large portion of their wheat fields. Although MSD had done a lot of preventive research, the suicide gene spread to other wheat varieties due to the transportation function of some special viruses. The black death wheat spread plague-like.
An interesting example of "bad science" about grain is Grain of Life. Belyaev's scientist, Broyles, is not only harmless, he doesn't even have a business agenda like MSD. He cultivates a single-celled organism that can obtain nutrients directly from the air, expand itself, and can be eaten directly, becoming the "grain of immortality". However, instead of solving the problem of hunger, this "grain of immortality" led to the bankruptcy of farmers and aggravated the economic crisis. In the end, when summer comes, the right temperature makes the "eternal grain" grow rapidly, covering one piece of land after another, and becoming a man-made disaster.
Since the emergence of the Internet in the 1970s, it has spread around the world in an explosion. Among the people I know, no one who has been on the Internet would choose not to contact the Internet from now on. It has become a way of working and a way of life for many people. But the internet has also made many people addicted and its captive. Today, the problem of Internet addiction has become a new educational issue. According to the author's observation, there have been a large number of Internet addicts among adults, only that they are independently responsible for the problem, unlike teenagers, who have guardians to reflect the problem to public opinion.
In the short sci-fi novel The Lotus-colored Dandelion, Xinghe describes a future world in which Internet addiction is widespread. In this era, not too far from the present, Internet addiction is already a serious social problem, even requiring mandatory withdrawal. As with today's drug rehabs, there are prisons for internet addiction within the justice system. The novel is a frightening portrayal of the reactions to Internet addiction: the inversion of day and night, the inability to practise one's profession, the difficulty of communicating with others, the obsessive search for Internet access everywhere, and even the use of prison riots to rebel against mandatory abstinence. What's more, the author's use of the first person, telling the story from the point of view of an Internet addict, superbly demonstrates the dangers of Internet addiction. The severe physical reactions depicted in the novel are more or less already present in some internet addicts today.
The author also envisioned concrete measures for a future society to force Internet addiction: first, to make addicts basically off the Internet, which is mandatory and backed by law. Of course, in order to keep them from having a mental breakdown, they will have limited access to the Internet under surveillance. Then the addicts are forced to participate in heavy exercise activities. The physical condition of a person who sits in front of a computer for years is quite deteriorated. In addition, the addict is forced to read books printed on paper to gradually get rid of their dependence on the computer.
In 1928, a serendipitous phenomenon in a laboratory, combined with the prepared mind of the British medical scientist Fleming, helped mankind enter the age of antibiotics. Today, antibiotics have become the usual weapon of choice for doctors. However, the misuse of antibiotics has led to an increase in bacterial resistance and the formation of new medical problems. The full-length sci-fi "Life and Death Balance" depicts this topic. Although the author, Wang Jinkang, has long been well known in the science fiction community, it is largely because of this novel that he has come to the attention of the public outside of the science fiction community, as it deals with a thorny issue at the forefront of today's science and technology.
The novel is set in the Middle East and depicts the story of a certain military megalomaniac waging germ warfare against a neighboring country. A parallel thread is the Huangfu family's research into "balanced medicine". As a fictional element in the novel, balanced medicine itself is not important, but the author uses this element to tell the story of his concern about the misuse of antibiotics. Through the mouth of Huangfu Yushan, a medical fanatic, the author writes: "Drug-resistant strains of bacteria are developing like a flood, and even common germs such as E. coli and dysentery bacilli have drug-resistant strains, which are not helped by antibiotics. Penicillin dosages for sepsis have been increased from tens of thousands of units to tens of millions of units, but the mortality rate is still back to the level it was before antibiotics were introduced." Science Fiction World 97, 5, 15.
The author even fictionalized the case of a patient with renal failure disorder. This was a high-ranking family member. It was because of her position and ability to use new, good drugs in large quantities that she fell into the trap of antibiotic abuse over a period of twenty years. The author used a long medical record to describe how she step by step "a small disease, big raise", and ultimately was surrounded by the terrible end of the drug.