Understanding hydrologic behaviors and assessing the influence of land use and land cover change in the hydrologic response of different watersheds is important for watershed researchers and management in the 21st century. Low impact development practices as a cost effective practice of land development approach strives to mimic the pre-development conditions of a watershed and can be used to mitigate risks in watersheds, adaptively. To adaptively manage the watersheds, other new approaches such as the Water-Energy-Food nexus can also be adopted, since the objective of watershed management can be achieved by the application of interdisciplinary and professional approaches through establishing a dynamic and optimal balance in supply and demand resources and consumption. Best management practices (BMPs) are famous and effective approaches applied to ameliorate hydrological and fluvial behaviors of the watersheds. A new cooperative watershed management methodology is designed for developing equitable and efficient BMPs with the participation of all main stakeholders.