Methods of Assessing Responses of Trees, Stands and Ecosystems to Air Pollution (Chapter 7).

摘要

The chapter focuses on three main types of assessments of pollution effects used in the case studies chronicled in Chapter 8 through 12 (Regional Studies of conifer forests in the west). These are measures of crown condition of individual trees; impacts on populations and communities; and temporal patterns in radial growth. The concepts behind the development of each approach are introduced with references to previous work, leading to a discussion of the state of science. The importance of quality assurance techniques to the success of any assessment of air pollution effects is also discussed.