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Biological resources provide the basis for life on Earth. The social, ethical, cultural and economic value of biological resources has been repeatedly recognized in religion, art and literature, since the written record.
The number of species on Earth is estimated to be between 500,500 million, or more, and only 1.4 million are still known to humans. Protecting biodiversity is protecting species. Species are the basic basis of human food, medicine, and raw materials for industrial and agricultural production.
With the development of production and the increase of population and technological progress, many species are being overexploited and utilized, and in many places not only biological resources have fallen into a state of depletion, but also the habitats they inhabit are also deteriorating. If this trend continues, the next two decades are likely to repeat the massive disappearance of species seen in the Late Cretaceous period (65 million years ago). Many people**, by 2020, 1 4 species on the planet will be in a situation of extinction, thus threatening the survival of humanity itself.
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Biodiversity is the foundation of human survival and development, and strengthening the conservation of biodiversity is of great significance to human beings. For human beings, the direct effect of the existence of biodiversity is to provide human beings with a variety of daily necessities and promote sustainable human development. The indirect effect is to regulate the climate, affect the environment, and promote the balance of the ecosystem.
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The significance of biodiversity conservation is mainly reflected in the value of biodiversity. Biodiversity is the foundation for the survival and development of human society.
In accordance with the Convention on Biological Diversity.
Biodiversity is defined as "variability in all living organisms, including terrestrial, marine and other aquatic ecosystems."
and the ecological complex it consists of; This includes diversity within species, between species, and ecosystems. ”
Biodiversity is the sum of organisms and the ecological complexes formed by them and the environment and the various ecological processes related to them, which are composed of three levels: genetic (genetic) diversity, species diversity and ecosystem diversity.
Genetic (genetic) diversity refers to the diversity of genetic factors and their combinations that determine traits in an organism.
Species diversity is the manifestation of biodiversity on species, and it is also the key to biodiversity, which not only reflects the complex relationship between organisms and the environment, but also reflects the richness of biological resources. Ecosystem diversity refers to the habitats and biomes within the biosphere.
and the diversity of ecological processes.
Biodiversity is the foundation of life on Earth. Its important socio-economic, ethical and cultural values are reflected in religion, art, literature, hobbies, and the understanding and support of all sectors of society for biodiversity conservation.
Their contribution to maintaining the climate, protecting water, soil and maintaining normal ecological processes is even greater for humanity as a whole. The significance of biodiversity is mainly reflected in its value. For humans, biodiversity has a direct use value.
Indirect and potential use value.
Direct Value:Organisms provide human beings with food, fiber, building and furniture materials, and other raw materials for life and production.
Indirect use value:Biodiversity has important ecological functions. In ecosystems, wildlife is interdependent and mutually restrictive, and they work together to maintain the structure and function of ecosystems.
It provides the basic conditions for human survival (e.g., food, water, and breathing air) and protects humans from natural disasters.
and suffering from disease (e.g., climate regulation, flooding, and pests and diseases). Once wildlife is reduced, the stability of ecosystems will be destroyed, and the living environment of human beings will also be affected.
Potential use value:There are many kinds of wild life, and only a few of them have been fully studied by humans, and the value of a large number of wild animals is still unclear. But to be sure, these wildlife creatures have huge potential use.
Once a wildlife has disappeared from the earth, it cannot regenerate, and its potential use value ceases to exist. Therefore, wildlife that is not yet clear of its potential use value should also be cherished and protected.
Biodiversity concept and meaning.
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1. Biological genetic diversity provides a large number of genetic resources for human beings.
2. Biodiversity plays an important role in the regulation of atmospheric composition, earth surface temperature, redox potential and pH value of surface sediments.
3. Biodiversity also plays an important role in maintaining soil fertility, ensuring water quality, and regulating climate.
Biodiversity Conservation Measures:
In order to conserve biodiversity, a certain area of land or water body, including the object of protection, is divided and conserved and managed. For example, nature reserves have been established for in-situ conservation.
Nature reserves are representative natural systems, natural distribution areas of rare and endangered species of wild animals and plants, including natural relics, land, terrestrial water bodies, sea areas and other different types of ecosystems. Nature reserves also have important functions of scientific research, science popularization and eco-tourism.
In different places where biodiversity is distributed, through the establishment of different forms of conservation facilities such as zoos, botanical gardens, arboretums, safari parks, seed banks, gene banks, aquariums, etc., artificial assistance is implemented for those species with ornamental value of those more precious species or their genes.
The purpose of ex situ conservation is only to allow extinct species to find a temporary living space, and when their vitality is restored and they have the natural ability to survive, it is necessary to allow the protected people to return to the ecosystem.
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The significance of biodiversity conservation is to maintain the ecological balance of the earth, promote the harmonious coexistence of man and nature, and create a better tomorrow. In life, the food, fiber, wood and other raw materials needed by human beings come from nature, and once any species in nature is extinct, it is impossible to regenerate, which has an extremely negative impact on the sustainable development of human beings.
The significance of protecting biodiversity is:
The protection of biodiversity is an important part of maintaining the ecological balance of the earth and promoting the harmonious development of any nature, and the significance of biodiversity mainly depends on the value of biodiversity.
Protecting biodiversity, can provide us with essential food, fiber, wood and other industrial raw materials, most of our food is in nature, only to maintain biodiversity, our food will be more abundant, the quality of life will be greatly improved. Messy clearing.
Species extinction is extremely detrimental to human development
In today's natural world, any species is extinct, it will never be able to regenerate, now there are endangered species on our earth, once they disappear then people will forever lose these resources, and the protection of biodiversity is to protect these endangered species, this initiative is of great strategic significance for our future generations and subsequent scientific research.
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Because biodiversity is the basis for the proper functioning and stability of ecosystems. The destruction of ecosystem diversity, which will be accompanied by a sharp reduction in animal and plant resources and environmental degradation, directly threatens the survival of human beings and the sustainable development of the entire DU Society.
Taking bees as an example, about 80% of the world's crops rely on bees and other insect vectors for pollination, especially oil crops, fruits and nuts, which are highly dependent on bee pollination. Bee pollination not only supports the survival and evolution of other species in nature, but also relies heavily on bees for the development of agriculture, which is vital to humans. Some scientists believe that if bees become extinct on Earth, so will humans.
Causes of biodiversity loss.
The causes of biodiversity loss are manifold, both anthropogenic and natural, and can be broadly summarized as follows: habitat loss and fragmentation impair the ability of forests to sustain the survival of producing biological populations and major ecological processes; Predatory overexploitation has led to a sharp reduction in the distribution area and population of species; Environmental pollution has reduced or disappeared populations of some sensitive species.
The simplification of varieties in agriculture and forestry has led to poor resistance of the system to pests, diseases and other disasters, and is not suitable for the survival of certain species; Invasive alien incursions cause changes in the composition of species within ecosystems, which can have fatal effects on native species by altering environmental conditions and resource availability.
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1. Biodiversity is an important component in maintaining ecological balance and promoting the harmonious development of man and nature, and the protection of biodiversity is extremely beneficial to the human economy and future development.
2. Biodiversity includes the diversity of biological species, genes and ecosystems. The significance of biodiversity is mainly reflected in the value of biodiversity, for human beings, biodiversity has direct use value, indirect use value and potential use value, therefore, the protection of biodiversity is to protect human beings.
3. First of all, biodiversity provides us with food, fiber, wood, medicinal materials and a variety of industrial raw materials, and our food is all in nature, maintaining biodiversity, and our food varieties will continue to be enriched. The quality of life of the people will continue to improve, and they will change from a subsistence type to a well-off type.
4. Biodiversity also plays an important role in maintaining soil fertility, ensuring water quality and regulating the climate. The trees are lined with fragrant flowers, and all kinds of wild animals are everywhere. However, due to the long-term war and the excessive exploitation and utilization of human beings, it has become a very poor area of biodiversity, full of loess barren slopes, and when encountering windy weather, it is flying sand and rocks, and the phenomenon of desertification is very serious.
In recent years, through artificial tree planting and the "Three Norths" shelterbelt project, biodiversity has been restored to a certain extent, and the process of desertification has been inhibited.
3. The maintenance of biodiversity is conducive to the preservation of rare and endangered speciesWe all know that once any species is extinct, it will never be able to regenerate. Once the species that still live on our planet today, especially those that are on the verge of extinction, disappear, then humanity will lose these precious biological resources forever. The conservation of biodiversity, especially endangered species, is of great strategic significance for future generations and for the cause of science.
Wildlife reserves, which cover 15% of the world's land area, are threatened and biodiversity is reduced.
Returning farmland to forests, refraining from indiscriminate logging, planting trees and grasses, establishing nature reserves, and prohibiting the killing of endangered animals. >>>More
"Biodiversity" is the sum of the ecological complex formed by organisms (animals, plants, microorganisms) and the environment and the various ecological processes related to it, including the three levels of ecosystem, species and genes. Biodiversity is the condition for human survival, the foundation for sustainable economic and social development, and the guarantee of ecological security and food security. >>>More
3.Population diversity cannot be indicated.
Because a species can have many populations, a population refers to the aggregate of organisms of the same species with a certain natural distribution area. >>>More
The intrinsic form is genetic diversity, i.e., genetic diversity. >>>More