Related Experiment Video
Updated: Oct 19, 2025

Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
A system-scale environmental risk analysis with considering a conceptual conversion from material/energy flow to
Jing Li1, Yizhong Chen2, He Peng2
1Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Technology Innovation Center for Remote Sensing Identification of Environmental Change, College of Resources and Environment Sciences, Hebei Normal University, Shijiazhuang, 050024, China.
Abstract:
A conceptual conversion from material/energy flow to information flow is presented in this study for evaluating network environment analysis (NEA) within the naphthalene-contaminated groundwater ecosystems under stochastic-fuzzy uncertainties. Four components (i.e., vegetation, herbivore, soil microorganism, and carnivore) are considered into the NEA framework for quantifying their direct and integral ecological risks. Carcinogenic risk related to human health concern is also evaluated under four remediation periods. The developed method is then applied to a power plant site. Results reveal that the average naphthalene concentration after pump-and-treat treatment would significantly decrease from 8.672 to 1.232 μg/L when remediation period extends to 10 years. The probabilities of suffering from carcinogenic risk would reach 0.9862, 0.9566, 0.8746, and 0.6142 under different remediation periods. Soil microorganism would receive more input risk than vegetation owing to its higher vulnerability. Although the upper-layer components (such as herbivore and carnivore) are not exposed to risk sources, they would gradually accumulate to a high-level ecological risk through food chains. Sensitivity analysis shows that variations in standard boundaries would have a significant impact on the risks of all components within groundwater ecosystems. This study can offer a novel perspective and methodology for comprehensively assessing the system-scale environment risks.
Related Concept Videos
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
Control Volume and System Representations
The control volume approach considers a stationary region in space through which fluid flows. This region is bounded by a control surface. For instance, in the case of water...
Propagation of Uncertainty from Systematic Error
Propagation of Uncertainty from Random Error
Energy Considerations in Open Channel Flow
Conversion of Units
The first step in the unit conversion is to list the given units and the units required...

