Water resources play an essential role in all aspects of human life and activities. All living organisms need water for survival. Due to increased demand for water, appropriate water resources management should be established. This book covers various aspects of water resources management, including their use for different purposes and impacts of natural factors and anthropogenic pressures on water resources. Climate changes affect water resources, causing floods and droughts. All human activities such as water supply, irrigation, navigation, hydropower, tourism and recreation use water...