Watershed Planning within a Quantitative Scenario Analysis Framework

Abstract

There is a critical need for tools and methodologies capable of managing aquatic systems within heavily impacted watersheds. Current efforts often fall short as a result of an inability to quantify and predict complex cumulative effects of current and future land use scenarios at relevant spatial scales. The goal of this manuscript is to provide methods for conducting a targeted watershed assessment that enables resource managers to produce landscape-based cumulative effects models for use within a scenario analysis management framework. Sites are first selected for inclusion within the watershed assessment by identifying sites that fall along independent gradients and combinations of known stressors. Field and laboratory techniques are then used to obtain data on the physical, chemical, and biological effects of multiple land use activities. Multiple linear regression analysis is then used to produce landscape-based cumulative effects models for predicting aquatic conditions. Lastly, methods for incorporating cumulative effects models within a scenario analysis framework for guiding management and regulatory decisions (e.g., permitting and mitigation) within actively developing watersheds are discussed and demonstrated for 2 sub-watersheds within the mountaintop mining region of central Appalachia. The watershed assessment and management approach provided herein enables resource managers to facilitate economic and development activity while protecting aquatic resources and producing opportunity for net ecological benefits through targeted remediation.

Evolution Model, Mechanism, and Performance of Urban Park Green Areas in the Grand Canal of China

“…Suhardiman [29] argued that watershed planning has evolved in Nepal as an arena for power operations and struggles, with its cross administrative boundaries jointly created by different government agencies. Essentially, watershed planning is a debate between multiple interests on development opportunities around the two perspectives of conservation and utilization, during which a large number of integrated modeling methods [30,31] and planning tools are created [32]. At present, the study of artificially excavated canals plays an important role in watershed planning, especially in China, the United States, Egypt, and India [33].…”