Watershed Surveys to Support an Assessment of the Regional Effects of Acidic Deposition on Surface Water Chemistry

摘要

The results of these surveys and the conclusions of the Direct/Delayed Response Project (DDRP) will be presented in several future papers. The current paper gives an overview of the context, rationale, logistical considerations, and implementation of these surveys, with special emphasis on the field activities of watershed mapping and soil sampling. The discussion should be useful to those planning, implementing, and managing survey activities in support of regional assessments of other environmental concerns, who are likely to face similar choices and constraints.