Water is an important resource for human survival and development. With the prevailing concept of sustainability, water resources should be expended wisely to ensure their continuous use in the future. In light of this premise, this course aims to introduce quality-based strategies for watershed management. The concept of watershed management considers the water quality variation and intercorrelation between upstream and downstream river sections. The impact of climatic factors on watershed management is also addressed. Additionally, several popular evaluation tools including modeling techniques and life cycle analysis will be discussed.