Introduction to Environmental Science First semester in 2008 and 2009 Content Unit 1 Environment and environmental problems Unit 2 The theoretical basis of environmental science Unit 3 Techniques and methods of environmental science Unit 4 Environmental management and practice Thinking and discussion of the questions Public problems: why did you choose environmental science and engineering? What’s your development blueprint of the professional? How to achieve this goal? Discuss the questions in group 1. How do you know environment, environmental science ? 2. What's the major environmental problems at present in your opinion? What is your most concern? Knowledge degree ? 3. Brief introduce the environmental technical means your current understanding, what’s the advantages and disadvantages of these technologies and methods ? 4. Which type of environmental filed do you want to engage in your future work? What kind of work? Brief introduce the reason and work target. 5. What’s institution you know at present both at home and abroad? What is the hot work of these institutions engaged in? How are things making out? What’s the meaning? 6. What do you want to obtain through the course of introduction to environmental science ? Chapter 1 Introduction 1.1 Environment and environmental types 1.2 The environmental science and its development 1.3 Ideas and methodology of environmental science 1.4 Learning target and requirements 1.1 Environment and environmental types Environment ??? 1.1 .1 The concept of environment The concept of environment The term "environment" firstly used by German scholar E. Haeckel in "ordinary biological morphology" published in 1866. Environment in ecology is the space surrounding a particular organism or biological population, together with all the things directly or indirectly affecting the survival of the organism or biological population. "Environment" is the combination of physical environment and biological environment. The environment researched in Environmental Science is the external world where human beings are the mainstay, the complex of material condition supporting human survival and development, including the natural environment and artificial environment (Liu Peitong, 1984). The relationship between man and environment 环 然 土壤 自 水 大 气 生物 聚落 环境 人 境 岩石 文化 环境 生产 环境 工 境 交通 环境 环 The "Environmental Protection Law in the People’s Republic of China" promulgated in December 1989 definitely states that, " the environment is all of the inartificial and artificial natural factors affecting human survival and development, including air, water , ocean, land, minerals, forests, grasslands, wildlife, natural and human remains, nature reserves, scenic spots, urban and rural areas. " Environment is the complex of nature, social, culture and economy other than human being. 1.1.2 Environmental types According to the forms of substances According to the cause of formation According to the subject Natural environment human environment biological environment environmental types intersatellite environment global environment According to the regional space scale of environment environment specific space environment Water environment Atmosphere environment Soil environment Settlement environment According to function Artificial environment Production environment Traffic environment Cultural environment Examples of natural environment Bayinbuluke , 2007.8 Examples of artificial environment NEW HAVEN Jsmao.Aug.21,2005 From Newhaven to Boston 1.1.3 The characteristics of environment (1) Diversity of enviroment Examples of diversity of natural enviroment Examples of diversity of natural enviroment The immanent cause of diversity of natural enviroment Element periodic table H Tim Helvey He Li Be Solids Man Made Elements B C N O F Ne Na Mg Gases Liquids Al Si P S Cl Ar K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn Fr Ra Ac Unq Unp Unh Uns Uno Une Uun Uuu Uub Uut Uuq Uup Uuh Uus Uuo Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Assumption :How many types of substance can be composite? (1) Diversity of enviroment Diversity of natural enviroment (1)Diversity of natural substance(element periodic table) (2)Biodiversity(species diversity, genetic diversity and ecosystem diversity ) (3)Diversity of environmental formation (4)Diversity of environmental process (5)Diversity of environmental function Diversity of human demand(diversity of artificial environment) (1)Diversity of material needs (2)Diversity of spiritual needs Examples of diversity of artificial enviroment pyramid Great Wall Thanksgiving Day Jsmao.Nov.24,2005 Diversity of the interaction between human and environment (1)Diversity of function interface (2)Diversity of action mode Examples of the relationship between human and environmental effects Streets in the city seaboard city dump workshop (2) The integrity of environment Boston Jsmao.Aug.,2005 The integrity of environment Interrelation and mutual restraint among the various factors of the environment Mutual impact and dependence between local environment and overall environment The cycle and transformation of matter and energy Cross-border (provincial, regional, national) environment impact Comprehensive and complexity of environmental issues (3) The regional of environment The regional environment is the temporal and spatial distribution difference of environmental factors, which shows as follows: : The diversity of the global environment, focusing on space, such as zonality of water and land. Variability of the local small environment, focusing on time, such as season The complexity of environmental factors between local and overall environment,such as the transmission of pollutants spread through special transmission route. (4) Relative stability of environment Meaning: logistics, energy flow and information flow in environment are constantly changing, the environment itself has a certain anti-interference ability of self-regulation, in a certain range of disturbance intensity, structure and function of the environment remain basically unchanged. Human system is an open system, human activities will affect the environment. 人 类 胁 迫 A The changing process of environmental situation in the pressure 人 工 恢 复 B 自 然 恢 复 恢 复 潜 力 C 健康状态 临界状态 不健康状态 D (5) Hysteresis of environmental change Meaning: the changes of the environment will be later than the outside interference after the effect of the environment by external. For example: the formation of ozone hole. Satellite photos show the ozone hole over Antarctica abnormally increase in August Objectively : There are gradual and abrupt changes in the change of environment. The performance of gradual change : (1) potential, delayed reaction; (2) It is difficult to predict the scope and extent of environmental change; (3) the scientific definition of the threshold; (4) Scientific quantitative determination of environmental recovery capability; (5) the indicators of environment that can be monitored are not sensitive. Mutation is the accumulation result of gradual changes ◇Subjectively: Limited level of development of environmental monitoring technology Limited ability to predict environmental change (6) The vulnerability of environment Meaning: Environment will be destroyed when the interference intensity exceeds its threshold. Baotou,2007 Baotou Iron Ore Processing Plant,2007 Green card Environmental Bearing Capacity: is the support capacity to development by environmental system. Means "during a certain period, under certain environmental circumstances, the threshold of support capacity to human society economic activity by a regional environment”. Substantial: the threshold of human activities which the human environment system can withstand under the premise of the maintenance of harmony between human and the environment The vulnerability of environment —— Incentive: the human "population explosion" pressure, the rapid growth of demand Performance: Environmental problem The limited of Earth's resources, resources crisis The limited of Earth's environmental bearing capacity, environment crisis Tasks: The human development model of the Earth damage to the environment, ungently need to be improved 1.2 The environmental science and its development 1.2.1 Development history Although in the ancient simple environmental scientific thought has been produced,As an independent discipline Environmental science was born in the 1960s. The symbol is the 《Silent Spring》written by Rachel Carson in 1962 and the Scientific Committee of environmental problems established by the International Union of Science in 1968. Environmental science has been developing rapidly during 1970s to 1980s.The symbol is the United Nations Conference on Human Environment in 1972 and the concept of "sustainable development" propounded by 《Our Common Future》in 1987. The discipline system became mature in 1990s. The symbol is 《 Rio Declaration on Environment and Development》propounded by the United Nations Conference on Environment and Development (UNCED) in 1992 and Agenda 21. Environmental science discipline has been more comprehensive in the breadth and depth of the expansion in 21 century. The development of Chinese Environmental Science (see《We Need Revolution》by Qu Geping , Jilin People's Publishing Press, 1997) During 1960s to1970s - the age of fearlessness led by ignorance . 1980s - the age of opening. Department of environmental science or research institute began to be set up in universities and research institutions. 1990's – the age of development. The first-class discipline of Environmental Science and Engineering established by the State and Ministry of Education in 1998. Sustainable development had been one of the basic national policy. 21 century –the age of rapid development, wide range of applications and close relation of environmental science and the modern and future life of human being. 1.2.2 The study object of environmental science What Environmental Science research is the Earth environment human being live, study scope of environmental science other living and non-biological material on the Earth is considered as environmental factors, which closely been related with human being. (Qian Yi, Tang Xiaoyan, 2000) Environmental science is the science of coordinating the relationship between human being and the environment correctly, searching the approach and mathods of sustainable development of human society, during studying and guiding human being understanding, using and transforming nature.(Sheng Lianxi, etc., 2002) Environmental science is the science to solve environmental problems faced by human, to create more suitable and better environment. (Zuo Yuhui, 2002) Environmental Science is the systematic study of the natural and man- made world. It is now a major discipline, reflecting our growing concern about the impact of human activity on the natural world.(ARW Jackson & JM Jackson,2000) Environmental science----- Object of study: the paradox of "human - environment" as the research object, to study the unity of opposites of human and environmental. Objective of study: Discuss the impact on the environment by the sustainable development of human society, and the changing regularity of environmental quality, thereby to adjust the behavior of human beings to protect and improve the environment for social, economic and environmental scientific basis for sustainable development. In short: coordinating the relationship between humans and the environment 1.2.3 The task of environmental science (1)Explore the evolution of global environmental law. (2)Reveal the relationship between the human activities (production, living) and the natural environment. (3)Explore the climate change impact on human survival and human activities impact on the natural environment . What current environmental science urgently research is focus on the areas of belows: Discuss the impact on the environment by the sustainable development of human society, and the changing regularity of environmental quality. Reveal the relationship between the human activities and the natural environment. Explore the climate change impact on human survival and the global environmental safety. Help people to establish a correct concept of social development, research and explore the environmental pollution control technologies and management tools to solve environmental problems in different spatial scales. 1.2.4 Subdiscipline of environmental science 社会科学 环环环环 According to the basic disciplines, study the basic theory of environmental problems 自然科学 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 combining theory with practice 应 应 应 应 应 按学科 体系分 按环境 要素分 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 blending with environmental science and social sciences 技术科学 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 应 1.3 Ideas and methods of environmental science 1. Integrity Environmental science is characterized by emphasis on the integrity of the object, human and environmental systems to be seen as the organic integrity with specific structure and function . The nature and function of integrated environment is much more abundant and complex than the factors of environment. Collective effect generated by interrelation and interactions of environmental factors consititue the integrated environment. Various changes in the environment are not isolated, but comprehensive reflection of various factors. There are close relation of interrelation and interrestriction of environmental factors . 2. Systematicness Environment is a complex dynamic systems and open systems with the changes of time,space,quantity and order. In environmental systems, there is interaction between various subsystems and various components, and constitute a certain network structure. There is material, energy and information changes and exchange inside and outside of the environmental systems. Achieve self-organization during the exchange circulation, to maintain a certain function. The structural drawing of environmental science optimization system system system analysis structural unit law element combination of system New system social concern resource utilization high efficiency optimized structure Government action natural protection ethics 3. Comprehensive Because of the diversity and relevance of the studying object, environmental science become more comprehensive. Environmental factors involved in natural factors and social factors, to solve environmental problems need to do more research on comprehensive subjects 4. Complexity Human environment system is a multi-level large-scale systems. The interreactions among subsystems are very complex.The subsystem effect on the integrated environment is also very complex. The interreactions between human being and environment are very complex. 1.4 Learning target and requirements 1.4.1 Learning target Through the "Environmental Sciences" learning to learn and master: the process of environmental science development and environmental thinking evolution; the main content and subdiscipline of environmental science research; the characteristics and tasks of modern environmental science; the development trend, discipline frontier and environmental hot spots problems of modern environmental science; the basic theory and methods of modern environmental science. Cultivate students environment-friendly values and ethics through the learning; environmental science research and thinking skills; establish the concept of local and global environment; establish environmental standard of behavior of doing from me and from now in daily life. Provide the necessary reference information and technical support for choosing the professional curriculum and determining elective professional emphasis next step. Cultivate the scientific thinking mode analysis ability creative thinking Summary Data out of the common critical thinking Analysis of the reasons Solving problems suspicious logical thinking raise questions Reflections on Science date supporting thoroughly pondering draw the conclusion Scientific confirmation Basic mode of scientific research 观观 观观观观 观观观观 观观观观 观观观观 观观观观 观观观观 观观观观 观观观观观观观观观观观 观观 与与与与与与与与 Cultivate the scientific research capacity Observing ability Analysis ability Ability to found the problem Problem solving ability Innovation ability Organizational coordination ability Cooperation ability Leadership 1.4.2 Learning requirements Curriculum notice (16 x 3 hours, type: lecturing, discussion, debate Case analysis and SEMINAR Learning requirements: thinking actively, study hard, attend actively (including learning preparation (notes, bibliography, related resources), learning group I hear, and I forget; I see, and I remember; I do, and I understand. Evaluation: usually, 20% (homework, special subject speech, discussion, etc.); Exam, 80% (midterm, 30%, final, 50%) 未知领域 References Cai Xiaoming. Ecosystem ecology. Beijing: science press, 2000 Main edite by Qian yi and Tang Xiaoyan. Environmental protection and sustainable development. Beijing: higher education press, 2000 Cheng Lianxi etc. Science introduction of modern environment. Beijing: chemical industry press, 2002 Editor: Chen Yingxu. environmentology. China environmental science press, 2000 Editor:Liu Jingling. Environmental education series. (1-5 sub-volume.) chemical industry press, 2000 ENVIRONMENTAL SCIENCE(EDITION2).World book press 2000 Enger E D,Smith B F. Environmental Science——A Study of Interrelationships. USA:McGraw-Hill Company,2004 Summary The concept and types of environment The characteristics of environment : diversity, integrity, regional, relative stability, change hysteresis , vulnerability Research object: the unity of opposites relations between human and environment Research aim: coordinate the relationship between human and environment Methodologist: overall, system, comprehensive, complex Thank you