Constructed wetland modelling for watershed ecosystem protection under a certain economic load: A case study at the Chaohu Lake watershed, China

摘要

Highlights?A bi-level optimization model with fuzzy random coefficients is established.?A fuzzy random simulation-based nested simulated annealing algorithm is designed.?The effect of constructed wetland system on the watershed ecosystem is investigated.?The “finite sum game” relationship between economic development and ecosystem health is demonstrated.?Some practical results are obtained.AbstractThe two major aims of watershed management are regional economic development and watershed ecosystem protection. In this paper, constructed wetland (CW) technology is employed to examine watershed ecosystem protection under a certain regional economic load. The Chaohu Lake watershed in China was chosen as the target study area and fuzzy random variables used to describe the uncertainties. Then, a bi-