B046:
Long-term Trends in Nutrient Chemistry of Forested Mountain Watersheds: Effects of Changing Climate, Land Uses, and Atmospheric Loading





Session ID#: 25540

Session Description:
Changes in major element stream chemistry in mid to high altitude mountain environments have been documented and attributed to various factors including changing climate, changing land cover due to climate driven ecological succession, and anthropogenic disturbances such as development, grazing, and fires. Nutrient chemistry, including various forms of nitrogen and phosphorus, can also be expected to change with resulting increasing or decreasing loads to downstream areas as the ecological conditions in the surrounding watersheds and landscapes change.  Understanding the nature and magnitude of these trends is essential for effective management of these resources. This session seeks contributions on long-term monitoring studies of nitrogen, phosphorus, and nutrient related constituents such as organic carbon transformations.  In addition, contributions are welcome on new monitoring methodologies including continuous sensors as well as modeling studies that provide insight on the relationship between changing forest ecosystems, hydrologic conditions, and related changes in stream nutrient chemistry.
Primary Convener:  Joseph L Domagalski, USGS California Water Science Center Sacramento, Sacramento, CA, United States
Convener:  Robert N Coats, Hydroikos Ltd., Berkeley, CA, United States

Abstracts Submitted to this Session:

Joseph L Domagalski, USGS California Water Science Center Sacramento, Sacramento, CA, United States

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