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1、环境生态学环境生态学Chapter 1Preface The critical importance of environmental ecology and its studies cannot be disputed as we enter the twenty-first century PrefaceThe United Nations Conference on Environment and Development was held in Rio de Janeiro in June 1992Preface Environmental ecology includes the st
2、udy of the relationships between abiotic, biotic and human, the ecological effects of pollution,disturbance, and other stressors.Chapter 1 Introduction to Ecology, Environmental Science and Environmental Ecology 1.1 What is Ecology?1.1.1 Conception and scope of ecologyEcology is the ideal science fo
3、r the naturally curiousThe term ecology comes from the Greek oikos meaning house“ or our environmentEcologists always ask Why? Ecology: study of relationships between organisms and the environment.Importance of understanding the relationships between organisms and the environment.Ecologist study the
4、se relationships between organisms and environment over a large range of temporal and spatial scales using a wide variety of approaches.1.1.2 Scientific method of ecologyThe ecology of forest birds:Using field studies to test theory or find law and relationships1.1.3 Relationship between ecology and
5、 environmentalismEcology is a science; environmentalism is a concern In 1798, the English scientist Thomas Malthus expressed doubts about the ability of agriculture to feed a rapidly growing human population 1.1.3 Relationship between ecology and environmentalism In 1962, Rachel Carson published Sil
6、ent Spring, a book that described the dangers of pesticides and the consequences of chemical pollution to our environment The greatest value of the environmental movement is that it has increasingly sensitized our society to the relationship that exists between ourselves, nature, industry, and devel
7、opment 1.2 What is Environmental Science?Environment (from the French environner: to encircle or surround) can be defined as (1) the circumstances or conditions that surround an organism or group of organisms, or (2) the complex of social or cultural conditions that affect an individual or community
8、 Environmental Science: The scientific study of the influence of human actions on natural processes Environmental ImpactEnvironmental impact refers to the alteration of the natural environment by human activityResource depletion and pollution were the two basic types of environmental impactWhat is Environmental Ecology Environmental Ecology: The study on the impacts of pollution and other stresses on ecosystem structure and function.
