The dataset contains calculated results of annual and seasonal input of nitrogen from seven major sources in the Calapooia River Watershed and its subwatersheds. It also contains annual and seasonal export of nitrogen from crop harvest and stream export. This dataset is associated with the following publication: Lin, J., J. Compton, S. Leibowitz, G. Mueller-Warrant, W. Matthews, S. Schoenholz, D. Evans, and R. Coulombe. Seasonality of nitrogen balances in a Mediterranean climate watershed, Oregon, US. BIOGEOCHEMISTRY. Springer, New York, NY, USA, 142(2): 247-264, (2019).

Leaf water potential data collected w/ Scholander pressure chamber by University of Nebraska

Study plot canopy chemistry values were calculated from leaf chemistry and litterfall weight values. Average leaf concentrations of nitrogen and carbon were used to investigate how reflectance varies with chemistry.

Measurements of leaf photosynthesis rates measured with Li-Cor LI-6200

Contains TE-09 data on the response of photosynthetic capacity to foliage nitrogen concentration and photosynthetic capacity in the canopies of Norther Study Area sites.

Contains foliage respiration data collected by TE-02.

Dataset contains discrete nutrient data collected at the following parks: Cape Hatteras National Seashore, Cape Lookout National Seashore, Fort Pulaski National Monument, Cumberland Island National Seashore, Fort Matanzas National Monument, Canaveral National Seashore, and Timucuan Ecological and Historic Preserve. Data parameters include measures of nitrogen, phosphorus, and chlorophyll-a.

This U.S. Geological Survey (USGS) Data Release provides water-quality data collected from the Caloosahatchee River and 12 fiberglass tanks located within the Caloosahatchee River. The tanks were open to the atmosphere, and were closed to the river. Tanks were filled with native water within 1-2 hours prior to the first profile collected on May 6, July 8, and September 16. Nutrients were added at approximately 12:00 p.m. on May 6, 11:45 a.m. on July 8, and 11:00 a.m. on September 16. Sodium nitrate was added for the nitrate treatments, sodium phosphate was added for the phosphate treatments, and ammonium hydroxide was added for the ammonium treatments. Nutrient samples were collected and processed by Nova Southeastern University. Water-quality measurements were made at 3 depths within each fiberglass tank, near the surface (approximately 1 foot deep), near the middle of the water column, (approximately 2 feet deep) and near the bottom (approximately 3 feet deep), and at approximately 1, 2, and 3 feet deep within the river itself. Each depth location value represents an approximate 30 second average. Water-quality characteristics measured and recorded include water temperature, specific conductance, dissolved oxygen, pH, turbidity, chlorophyll fluorescence, phycocyanin fluorescence, and fluorescence of dissolved organic matter.

This U.S. Geological Survey (USGS) Data Release provides water-quality data collected from the Caloosahatchee River and 12 fiberglass tanks located within the Caloosahatchee River. The tanks were open to the atmosphere, and were closed to the river. Tanks were filled with native water within 1-2 hours prior to the first profile collected on May 6, July 8, and September 16. Nutrients were added at approximately 12:00 p.m. on May 6, 11:45 a.m. on July 8, and 11:00 a.m. on September 16. Sodium nitrate was added for the nitrate treatments, sodium phosphate was added for the phosphate treatments, and ammonium hydroxide was added for the ammonium treatments. Nutrient samples were collected and processed by Nova Southeastern University. Water-quality measurements were made at 3 depths within each fiberglass tank, near the surface (approximately 1 foot deep), near the middle of the water column, (approximately 2 feet deep) and near the bottom (approximately 3 feet deep), and at approximately 1, 2, and 3 feet deep within the river itself. Each depth location value represents an approximate 30 second average. Water-quality characteristics measured and recorded include water temperature, specific conductance, dissolved oxygen, pH, turbidity, chlorophyll fluorescence, phycocyanin fluorescence, and fluorescence of dissolved organic matter.