99013-大学英语-Biological diversity

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什么是生物多样性英语作文

什么是生物多样性英语作文Biodiversity: The Tapestry of LifeBiodiversity, a term that encompasses the vast array of living organisms on our planet, is a concept that has gained increasing importance in the scientific community and public discourse. It refers to the variety and variability of all living things, from the smallest microorganisms to the mightiest mammals, and the intricate web of relationships that bind them together.At its core, biodiversity is the foundation upon which the Earth's ecosystems are built. It is the intricate tapestry of life that sustains the delicate balance of our natural world, providing the essential resources and services that support all forms of life, including human life. From the oxygen we breathe to the food we consume, the clean water we drink, and the medicines that heal us, biodiversity is the engine that drives the processes that sustain our very existence.Yet, despite its critical importance, biodiversity is under threat. Human activities, such as habitat destruction, pollution, climate change, and overexploitation of natural resources, have led to a alarming rate of species loss, with some estimates suggesting thatwe are currently experiencing the sixth mass extinction event in the history of our planet. This loss of biodiversity not only threatens the ecological stability of our world but also has far-reaching consequences for human well-being and the future of our species.Biodiversity, however, is not just about the number of species that inhabit our planet. It is also about the genetic diversity within each species, which allows them to adapt to changing environmental conditions and ensures their long-term survival. Additionally, biodiversity encompasses the diversity of ecosystems, from tropical rainforests to coral reefs, each with its own unique set of species and interactions.The importance of biodiversity cannot be overstated. It is the foundation upon which the Earth's ecosystems are built, providing the essential resources and services that support all forms of life. It is the source of countless medicines and the inspiration for countless innovations in technology and design. It is the very fabric of life on our planet, and its preservation is crucial for the continued well-being of humanity and the planet as a whole.Recognizing the critical importance of biodiversity, governments, organizations, and individuals around the world have taken steps to protect and conserve it. This includes the establishment of protected areas, the implementation of sustainable management practices, andthe promotion of public awareness and education about the importance of biodiversity.One of the most significant efforts to protect biodiversity is the Convention on Biological Diversity, an international treaty adopted in 1992 that aims to conserve the world's biological diversity, ensure the sustainable use of its components, and equitably share the benefits arising from the utilization of genetic resources. The convention has been ratified by over 190 countries, making it one of the most widely adopted international environmental agreements.At the individual level, there are many ways in which we can contribute to the preservation of biodiversity. This includes supporting sustainable agriculture and forestry practices, reducing our carbon footprint, and engaging in conservation efforts in our local communities. By taking small steps to protect the natural world around us, we can all play a role in ensuring that the rich tapestry of life on our planet continues to thrive for generations to come.In conclusion, biodiversity is the foundation upon which the Earth's ecosystems are built, providing the essential resources and services that support all forms of life. Its preservation is crucial for the continued well-being of humanity and the planet as a whole. By recognizing the importance of biodiversity and taking action toprotect it, we can ensure that the rich tapestry of life on our planet continues to flourish for generations to come.。

地球资源英语作文

Earth,the only known planet that supports life,is endowed with a vast array of resources that are essential for the sustenance and development of all living beings.These resources can be categorized into renewable and nonrenewable resources.Renewable resources are those that can be replenished naturally over time.They include:1.Water:Freshwater is a critical resource for drinking,agriculture,and industry.It is replenished through the water cycle involving evaporation,condensation,and precipitation.2.Soil:The fertile topsoil is vital for agriculture,providing nutrients for plant growth.It is regenerated through natural processes such as the decomposition of organic matter.3.Forests:Forests are renewable as long as they are managed sustainably.They provide timber,oxygen,and habitats for a multitude of species.4.Wind and Solar Energy:These are inexhaustible sources of energy that can be harnessed using technology like wind turbines and solar panels.5.Biological Diversity:The variety of life forms on Earth,including plants,animals,and microorganisms,is a renewable resource that contributes to the balance of ecosystems and offers potential for new medicines and materials.Nonrenewable resources,on the other hand,are finite and will eventually run out if not managed wisely.They include:1.Fossil Fuels:Oil,coal,and natural gas are the primary sources of energy for the modern world.They are formed from the remains of ancient organisms and take millions of years to form.2.Minerals:Metals like iron,copper,and gold are extracted from the Earths crust and are used in various industries.Once extracted,they cannot be replaced.3.Nuclear Energy:Uranium,the primary fuel for nuclear power,is a nonrenewable resource that is mined from the Earth.The sustainable use of Earths resources is of paramount importance.Overexploitation and pollution have led to environmental degradation,climate change,and loss of biodiversity. It is crucial to adopt practices that ensure the longevity of these resources for future generations.This includes:Conservation:Protecting natural habitats and reducing waste.Recycling:Reusing materials to reduce the demand for new resources. Renewable Energy:Transitioning to clean,renewable sources of energy. Sustainable Agriculture:Employing farming practices that maintain soil health and biodiversity.Education:Raising awareness about the importance of resource conservation and sustainable development.In conclusion,the Earths resources are the foundation of our existence.It is our collective responsibility to use them wisely,ensuring that they remain available for the prosperity of all life on our planet.By embracing sustainable practices and technologies,we can safeguard these precious gifts of nature for generations to come.。

生物英语短篇作文高中作文

生物英语短篇作文高中作文Biological Diversity。

Biological diversity, or biodiversity, refers to the variety of life on earth, including the variety of species, ecosystems, and genetic diversity within species. It is essential for the functioning of ecosystems and the services they provide, such as food, clean water, and air, and for human well-being.Biodiversity is threatened by human activities such as habitat destruction, pollution, overexploitation of resources, and climate change. These activities have led to the extinction of many species and the degradation of ecosystems, which in turn threatens human well-being.To protect biodiversity, we need to take actions at different levels. At the individual level, we can reduce our ecological footprint by consuming less, using renewable energy, and supporting conservation efforts. At thecommunity level, we can promote sustainable practices, such as organic farming and eco-tourism, and protect natural habitats. At the national and international level, we need policies and regulations that promote sustainable development, protect endangered species and habitats, and address the root causes of biodiversity loss.Conserving biodiversity is not only a moral and ethical duty, but also a practical necessity for our survival and well-being. We depend on biodiversity for our food, medicines, and other resources, and for the services that ecosystems provide. By protecting biodiversity, we are also protecting our own future.In conclusion, biodiversity is a crucial aspect of our planet's health and well-being. It is threatened by human activities, but we can take action to protect it. By conserving biodiversity, we are not only protecting the natural world, but also our own future.。

生物多样性英语作文模板

生物多样性英语作文模板Biodiversity。

Biodiversity, short for biological diversity, refers to the variety and variability of life on Earth. It encompasses the different species of plants, animals, and microorganisms, the genetic differences within each species, and the ecosystems in which they live. Biodiversity is crucial for the health and stability of ecosystems, and it provides a wide range of ecosystem services that are essential for human well-being.First and foremost, biodiversity is important for the functioning of ecosystems. Ecosystems are made up of a complex web of interactions between different species, and the more diverse the species within an ecosystem, the more stable and resilient it is. Each species plays a unique role in the ecosystem, and the loss of even one species can have cascading effects on the entire system. For example, pollinators such as bees and butterflies are essential for the reproduction of many plants, and their decline can lead to a decrease in plant diversity and productivity.Furthermore, biodiversity provides a wide range of ecosystem services that are essential for human well-being. These services include the provision of food, clean water, and air, the regulation of climate, the control of pests and diseases, and the cultural and recreational benefits that nature provides. For example, forests help to regulate the climate by absorbing and storing carbon dioxide, and wetlands act as natural filters for water, removing pollutants and improving water quality.In addition, biodiversity is important for human health and medicine. Many of the medicines we use today are derived from natural sources, and a diverse range of species is essential for the discovery of new drugs and treatments. For example, the rosy periwinkle, a plant native to Madagascar, has been used to develop drugs for the treatment of cancer and diabetes. In addition, the genetic diversity within species is important for breeding new crop varieties that are resistant to pests and diseases, and that can adapt to changing environmental conditions.However, despite its importance, biodiversity is currently facing unprecedented threats. Human activities such as deforestation, overfishing, pollution, and climate change are causing the loss of species at an alarming rate. It is estimated that species are going extinct at a rate 1,000 times higher than the natural background rate, and many scientists believe that we are currently in the midst of the sixth mass extinction event in the history of the Earth.In order to protect and conserve biodiversity, it is essential that we take action at both the local and global levels. At the local level, efforts should be made to protect and restore natural habitats, and to reduce the impact of human activities on ecosystems. This can include the establishment of protected areas, the implementation of sustainable land-use practices, and the reduction of pollution and waste. At the global level, it is important to address the root causes of biodiversity loss, such as overconsumption and unsustainable production and consumption patterns. This may involve the development and implementation of international agreements and policies, as well as the promotion of sustainable development and the use of renewable resources.In conclusion, biodiversity is essential for the health and stability of ecosystems, and it provides a wide range of ecosystem services that are essential for human well-being. However, it is currently facing unprecedented threats from human activities, and urgent action is needed to protect and conserve it. By taking action at both the local and global levels, we can ensure that biodiversity continues to provide for the needs of present and future generations.。

关于生物多样化的英语作文

关于生物多样化的英语作文Biodiversity, or biological diversity, refers to the variety of life on Earth, including the variety within species, between species, and the ecosystems they form. It is acritical component of our planet's health and a natural resource that sustains human life. In this essay, we will explore the significance of biodiversity and the steps we can take to protect it.Firstly, biodiversity is essential for the survival of all living organisms. Each species plays a unique role in the ecosystem, contributing to its balance and stability. For instance, bees are vital for pollination, which is a process that allows plants to reproduce. Without bees, we would lose a significant portion of our food supply.Secondly, biodiversity is a key factor in maintaining the health of the planet. Healthy ecosystems can better withstand and recover from natural disasters, such as floods, fires, and droughts. They also play a crucial role in regulating climate by absorbing carbon dioxide from the atmosphere, which helps to mitigate the effects of global warming.Moreover, biodiversity is a source of economic benefits. Many industries rely on the natural resources provided by diverse ecosystems. For example, the pharmaceutical industry often looks to the natural world for inspiration in developing new drugs. Additionally, biodiversity supports tourism andrecreational activities, which are significant contributors to local and national economies.However, biodiversity is under threat due to various human activities, such as deforestation, pollution, and climate change. To protect biodiversity, we must take action. This can include:1. Supporting conservation efforts: This can be done by donating to organizations that work to protect endangered species and habitats, or by participating in local conservation projects.2. Reducing our carbon footprint: By using less energy, driving less, and consuming fewer resources, we can help to reduce our impact on the environment.3. Advocating for sustainable policies: Encouraging our governments to implement policies that protect biodiversity and promote sustainable practices can have a significant impact.4. Educating ourselves and others: Understanding the importance of biodiversity and spreading awareness about the steps we can take to protect it is crucial.In conclusion, biodiversity is a vital aspect of our planet's health and well-being. It is our responsibility to protect and preserve it for future generations. By understanding its importance and taking action, we can help to ensure the continued survival of the rich variety of life on Earth.。

生物遗传多样性

2. Species and reproductive barriers
(1) Species : “groups of interbreeding natural
populations that are reproductively isolated from other such groups”
Speciation
Is the focal point of macroevolution May occur based on two contrasting patterns..
1.Macroevolution
In nonbranching evolution, a population changes and becomes a new species
3. 生物多样性的价值及作用
生物多样性总价值
直接价值
间接价值
选择价值
实物价值
非实物价值
食物药物能源工业原料
旅游文化科研畜力使用
生态价值
有机质生产调节气候固定CO2 释放O2
污染物降解
潜在价值
选择使用保留使用存在价值
一个基因可能关系到一种生物的兴衰，一个物种可能影响一个国家的经济命脉，一个生态系统可能改变一个地区的面貌。
Each species is assigned a two-part name consisting of the genus and the species
Species: Panthera pardus Genus: Panthera Family: Felidae Order: Carnivora
Species
The goal of
classificatio

保护生物学的重要性

保护生物学的重要性浅谈对生物多样性保护的重要性生物多样性（英文为biodiversity 或biological diversity）是一个描述自然界多样性程度的一个内容广泛的概念。

对于生物多样性，不同的学者所下的定义是不同的。

例如oNorse et al.(1986）认为，生物多样性体现在多个层次上。

而Wilson 等人认为，生物多样性就是生命形式的多样性（"The diversity of life"）(Wilson & Peter,1988;Wilson,1992）。

孙儒泳(2001）认为，生物多样性一般是指"地球上生命的所有变异"。

在《保护生物学》一书中，蒋志刚等（1997）给生物多样性所下的定义为："生物多样性是生物及其环境形成的生态复合体以及与此相关的各种生态过程的综合，包括动物、植物、微生物和它们所拥有的基因以及它们与其生存环境形成的复杂的生态系统"。

生物多样性是国内外最为流行的一个词汇。

由于自然资源的合理利用和生态环境的保护是人类实现可持续发展的基础，因此生物多样性的研究和保护已经成为世界各国普遍重视的一个问题。

无论是联合国还是世界各国政府每年都投入大量的人力和资金开展生物多样性的研究与保护工作，一些非政府组织也积极支持和参与全球性的生物多样性的保护工作。

例如：联合国和世界银行共同成立的Global Environment Facility每年支出数亿美元支持生物多样性的保护。

美国MacArthur Foundation1992年花了$1.7亿支持生物多样性的保护。

生物多样性是指在一定时间和一定地区所有生物（动物、植物、微生物）物种及其遗传变异和生态系统的复杂性总称。

它包括基因多样性、物种多样性和生态系统多样性三个层次。

物种的多样性(biodiversity)是生物多样性的关键，它既体现了生物之间及环境之间的复杂关系，又体现了生物资源的丰富性。

生物多样性的意义及保护

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生物多样性与你呼吸的空气在一些城市中，尤其是在夏天，呼吸外面的空气是不健康的。我们知道我们必须减少汽车尾气污染、工厂废气污染、发电厂的空气污染来保证现代生活。是的，我们都知道这些，但是你知道生物多样性对于环境的自动清洁起着什么样的作用吗？你知道生物多样性帮助清洁空气吗？树和其他绿色植物吸入二氧化碳--这种主要由汽车尾气和工厂排放的产生的温室气体，然后还给自然纯净的氧气。生物多样性是这个世界的空气净化器。然而，我们持续不断的砍伐树木,把它们切开运往各地。世界上，492种树木物种已经有濒临灭种的危险。我们已经砍伐掉曾经装点着地球的大约一半的树木。我们砍伐但不修复，如此已经伤害了地球的肺。就像一个一天要抽10包烟的瘾君子，一直吸烟，而损坏的肺一块块地被切掉。我们的肺还剩多大一块？另外,在许多地方，我们引入外来入侵物种。在过去的200年里，我们将一些树种从世界的这一头运到那一头。这种行为有的已经发展到一种产业的规模，像桉树和藤条。也有一些退休人员或旅行者从他们的家乡将土产的植物或是树木带上，随他们旅游。问题是，这些植物完全适应它们原本的生长地，它们却并不适应新的地点生长。它们也许比当地物种需要更多的水，或者需要杀虫剂来帮助它们不被当地的虫子蛀食。我们必须尊重自然的安排，不要强迫某些特性的改变。顺其自然。这样，地球的肺能呼吸得更舒服些。
点此播放教学视频
点此播放教学视频
点此播放教学视频
• 生物多样性与我们喝的水 • 所有的生命都离不开水，所以，生物多样性也与水资源有关。 • 因为我们只有有限的水--不是说我们将来什么时候都能从火星上运一船下来--生物多样性、特殊的不同生态系统净化我们的水：森林、土壤和细菌、小溪与云彩一起运作--实际上是过滤，才使我们重新喝到水。没有生物多样性，这个世界就会变得贫瘠与中毒--更像火星--然后我们就不能再生存在地球上了。 • 所以，问题是，你已经准备好搬到另一个星球上去生活了吗？ • 生物多样性、气候和灾难 • 你意识到最近我们一直在遭遇奇怪的气候吗？ • 科学证据是无法驳斥的：地球的气候正在变化。整个地球上一直发生着奇奇怪怪的事情--珊瑚礁死亡、大型泥石流、不寻常的倾天大雨、一些地区的持续干旱。不管是因为工业排放原因还是自然因素的原因，世界对这些现象的应付机制依旧是相互紧密联系的，从生态系统方面到生态系统中的各类生命间。 • 例如，在地球上的许多地方，人们发现当他们砍伐森林后，它们的乡村和城镇就容易遭遇洪水。当这种洪水来时，就比以往的洪水要更凶猛、更快速。为什么？不是火箭的推力让它们变得更快，而是因为树可以用它们的根保持水土。根在湿潮季节里吸水并在夏天放出水分来。这是一种自然调节方法。

生物多样性活动的英语作文高中

生物多样性活动的英语作文高中Biodiversity, or biological diversity, refers to the variability of life forms and ecosystems on Earth. It encompasses the diversity of species, genetic diversitywithin a species, and the diversity of ecosystems. Biodiversity is essential for the stability and resilience of ecosystems, as well as for the well-being of humans and other organisms. However, human activities, such as habitat destruction, pollution, overexploitation, and climate change, have led to a significant loss of biodiversity worldwide. To ensure the continued survival of life on Earth, it is crucial to take action to protect and conserve biodiversity.Protecting biodiversity is a global responsibility that requires the collective efforts of individuals, communities, organizations, and governments. Several initiatives andactivities aim to raise awareness about the importance of biodiversity and promote its preservation.One of the key activities to promote biodiversity is habitat conservation. Habitats provide crucial resources and support for various species, and their preservation is vital for maintaining biodiversity. Protected areas, such as national parks and nature reserves, play a crucial role in safeguarding habitats and the species that inhabit them. These areas often have conservation programs and regulations in place to manage human activities and minimize harm to biodiversity.Another important aspect of biodiversity conservation is the establishment of nature corridors and green spaces. These corridors allow species to move freely between fragmented habitats, promoting gene flow and preventing genetic isolation. Green spaces in urban areas also provide essentialhabitats for various species, particularly for birds, insects, and plants that thrive in human-altered environments.Furthermore, biodiversity education and public awareness campaigns play a crucial role in ensuring the long-term conservation of biodiversity. Educational programs in schools and communities help raise awareness about the value of biodiversity and the need for its protection. These programs can include field trips, workshops, and interactiveactivities to engage students and the general public in biodiversity conservation.In addition to education, sustainable land and resource management practices are essential for maintaining biodiversity. Sustainable agriculture, forestry, andfisheries practices can minimize the negative impact on ecosystems and help preserve biodiversity. This includesusing ecological farming methods, practicing selectivelogging, implementing responsible fishing practices, and promoting sustainable land-use planning.International cooperation is also vital for theprotection of biodiversity. Governments and organizations worldwide collaborate on initiatives such as the Convention on Biological Diversity (CBD) to set goals and develop strategies for conserving biodiversity. Collaboration between countries enables the sharing of knowledge, resources, and technology for the protection of biodiversity.In conclusion, biodiversity conservation is of utmost importance for the well-being of humans and the planet. To promote biodiversity, it is crucial to engage in activities such as habitat conservation, the establishment of nature corridors, biodiversity education, sustainable land and resource management, and international cooperation. Byraising awareness and taking collective action, we can ensure the preservation of biodiversity for future generations.。

生物多样性英文

the potential value: as far as
the medicinal properties, 80% of the populations in developing countries rely on plants or animals, to ensure the basic health.
winter sweet
chrysanthemum
bamboo
（3）Biodiversity has an important ecological function. No matter what kind of ecosystem, wildlife is one of the essential components. Wildlife once reduced, the ecosystem stability would be destroyed, the survival environment of mankind would also be affected.
Causes of biodiversity reduction:
1、The rapid increase in population.
The population keeps increasing, so arable land must be expanded to meet demands of eating, this becomes the direct threat to the natural eco-systems.
Value of biodiversity and its significance ：
Direct value：
（1） biodiversity provides food, fiber, building materials and furniture, and other industrial raw materials for human beings.

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Biological Diversity
So far, we human have known 2 million kinds of species on the earth, including usual animals and plants we can see in the zoo and other creatures living in places where the environments are extremely bad. However, there still thousands and hundreds of species the scientist have not found, and some of them even have died out before we knew little about them.
Nowadays, there are so many reasons, considered as great threat to biological diversity, mainly caused by human being’s activities, such as business hunting and cutting for clothes, foods and other materials we used in our daily life as well as exploitations for mineral resources. In the wake of the destruction of biological diversity, plenty of bad consequences have come ture. The expanding of deserts and trouble floods dilapidate people’s houses, forcing them to move to other places. On this occasion, disasters will cause huge damage to property and our life.
Through the books or science magazines, we have been told biological diversity, also called biodiversity, refers to genetic diversity, population diversity as well as ecosystem diversity. It has very important place in keeping the balance of nature world. All kinds of species as a part of nature get what they need from the environment to support their life. What’s more their activities will have an affects on these areas, for instance, earthworms can make the soil more fertile and the plants can prevent the earth from being washing away by rains. Whatever ways the creatures change nature, all of them really do their contributions to the evolutions of the nature world.
Consequently, we human being must take immediate actions to save more species from the edge of extinction. For example, refusing to buying fur-clothes made of wild animals will make a great difference in protecting wild animals. And government should be obliged to legislate to put punishments on illegal hunting as well as to limit over-exploitations of nature resources. Only treating other kinds of species in the same way that we treat ourselves, regardless of their population or appearance, can we live a more beautiful life on the earth, can we develop our next generation in long turn, can we keep ourselves out of loneliness. Always remember we are not the only life on the earth.。