This book examines the management and impacts of watersheds on the ecosystem process. The authors present topics including the effects of thinning on material transformation in a stand of Cryptomeria japonica in a watershed in eastern Japan; natural and human influences on the inorganic water chemistry of the northern Xinjiang rivers in China; current land use within the Conecuh/Escambia River watershed in the Gulf of Mexico; factors affecting farmers' adoption of best management practices in Ontario's Grand River watershed; and the adaptation of national elevation dataset to estimate depression storage in a glaciated watershed.