保护生物多样性_生物论文（The protection of biodiversity _ biology paper）.docVIP

保护生物多样性_生物论文（The protection of biodiversity _ biology paper） Biodiversity and its value Biodiversity is the sum of biological and environmental ecological complex formation and the related all kinds of ecological processes, including millions of animal, plants, microorganisms and their genes and their living environment of the formation of complex ecosystem, is the basic characteristics of life system. The life system is a hierarchical system that includes multiple levels or levels: genes, cells, tissues, organs, populations, species, communities, ecosystems, landscapes. There is a rich variety of diversity at each level. But in theory and practice, the most important researches are genetic diversity (or genetic diversity), species diversity, ecosystem diversity and landscape diversity. Nowadays, people often regard biodiversity as the life entity itself, not merely as one of the important characteristics of life system. The diversity of human culture can also be considered part of biodiversity. Just as genetic diversity and species diversity, some traits of human culture (such as nomadic life and moving farming) represent strategies for survival in a particular environment. At the same time, as in other aspects of biodiversity, cultural diversity helps people adapt to changing external conditions. Cultural diversity is manifested in the diversity of language, religion, land management practices, art, music, social structure, crop selection, diet, and countless other human social characteristics. Biodiversity is the material basis for human existence, and its value can be understood from the following two aspects. First, direct value. From the biological diversity of wild and domesticated components, human beings have needed all the food, many drugs and industrial raw materials, at the same time, it is in the entertainment and tourism also plays an important role; second, indirect value. Indirect value is mainly related to the function of ecosystem. It is usually no