基于水生态分区的太子河流域水生态承载力研究

Research on Water Ecological Carrying Capacity in Taizi River Basin Based on Water Ecological District

为实现太子河流域水生态系统的分区保护,采用系统动力学方法,建立了基于水生态分区的水生态承载力模型,模拟了太子河流域水生态系统的动态变化。结果表明:太子河流域各水生态分区的水生态承载力各不相同。通过对8种情景下水生态承载力的比较分析,认为集产业结构调整、适度经济发展速度、节水及控污于一体的综合方案使各分区水生态承载力的提高效果最为显著。针对各分区面临的不同承载压力,提出相适应的水生态承载力改善措施,为流域水生态系统的可持续发展提供科学依据。

To achieve partition protection of water ecosystems in Taizi River Basin,the model system of water ecological carrying capacity（WECC） based on water ecological district is constructed using the method of systematic dynamics.The dynamic trend of the WECC in Taizi River Basin is simulated by using the model.The results show that： The WECC of each water ecological division in the basin differs from one another.It is held through the comparative analysis on WECC in 8 scenarios that,the comprehensive program concentrating industrial restructuring,moderate pace of economic development,water conservation,pollution control to one make the improvement of the partition＇s WECC become most significant.With the aim of the different bearing pressures the district faces,the measures adaptable to improving the WECC are proposed,whereby providing the scientific basis for the sustainable development of watershed ecosystem.