How will global warming, land use change and flow regulation affect streams in regards to light regime, thermal regime and flow regime?

1. Light Regime Global Warming: Longer ice-free periods, earlier leaf-out, and later leaf-fall extend the period of photosynthetically active radiation. Land-Use Change: Increased sediment load and reduced riparian shading decrease light penetration into streams. Flow Regulation: Reduced sediment load, altered water depth, and changes to riparian vegetation can increase or decrease light availability. 2. Thermal Regime Global Warming: Increases in mean annual temperatures directly raise water temperatures, affecting metabolic rates in aquatic organisms. Land-Use Change: Loss of riparian shading and channel incision amplify temperature fluctuations in streams. Flow Regulation: Releases of cold or warm water from reservoirs (e.g., hypolimnetic releases) and shallow basin retention alter the natural thermal regime. Har ikke plads til at skrive mere se billedet for flow regime