Variation in Quantity, Source and Bioreactivity of Dissolved Organic Matter in Streams Draining Watersheds along a Gradient of Agricultural Land Use

Peng Shang1, Yuehan Lu2, Rudolf Jaffe3, Yingxun Du4 and Robert Findlay1, (1)University of Alabama, Tuscaloosa, AL, United States, (2)University of Alabama, Department of Geological Sciences, Tuscaloosa, AL, United States, (3)Florida International University, Southeast Environmental Research Center, Miami, FL, United States, (4)Nanjing Institute of Limnology and Geography, Chinese Academy of Sciences, Nanjing, China