【摘要】 通过对人类主导下的流域社会-经济-河湖复合生态系统基本特征的理论分析,在对水环境和水资源承载力等概念辨析的基础上,揭示了流域水生态承载力的"分区、分期、分级"属性以及"量、质、序"递进综合约束作用等基本内涵,并提出其广义和狭义的概念。在以二元水循环为驱动的"水资源-水环境-水生态-社会经济"互动机制基础上,建立了流域社会-经济-河湖复合生态系统概念模型和流域水生态承载力分区耦合概念模型,并以"人水和谐"思想为核心提出了水生态承载力承载度的综合评价基本思想,及其"分区、分期、强化耦合"的系统动力学模拟评价模型的实现思想。以太子河流域为例,进行了实例应用。更多还原

【Abstract】 Through theoretical analysis of fundamental characteristic of human-dominated social-economic-aquatic complex ecosystem,and the comparative analysis of the relevant concepts of water resources carrying capacity,water environment carrying capacity and ecological carrying capacity,the heterogeneous characteristic of zoning,stage,grading and the more stringent coupled restraint of water amount,water quality,and flow regime through social-ecological interaction are scrutinized.The generalized and narrow definition of watershed aquatic ecological carrying capacity is put forward.From the analysis of the interaction among social-economic-ecological aquatic system driven by human-nature dualistic water cycle,the concept model of watershed complex system and its aquatic ecological carrying capacity are put forward which explicitly emphasize zoning,staging and intensified coupling.With the philosophy of "human-nature harmony co-existing",the thinking of carrying degree assessment of watershed carrying capacity,and the ideas of construction of the zoned grading system dynamic assessment model are put forward.Also a case study of the Taizihe Watershed is carried out to test the validity of the system dynamic assessment model.更多还原