Puerto Rico C, N, water stable isotopes

Plant tissue (stem and leaf) samples from two species of mahogany (Swietenia macrophylla and Swietenia mahagoni) and soil samples were collected in relatively "wet" (July 2012) and "dry" (February 2013) periods at two sites in northeastern (Luquillo) and southwestern (Susua) Puerto Rico. Each sample taken in July 2012 was analyzed for carbon, nitrogen, and water stable isotopes. Plant tissue samples taken in February 2013 were analyzed for carbon, nitrogen, and water stable isotopes. The purpose of the data was to provide baseline information on soil-plant water, carbon and nitrogen stable isotopes in these relatively undisturbed sites. An additional dataset of soil-plant water, carbon and nitrogen stable isotopes were also collected in a highly urbanized setting in San Juan, Puerto Rico.