摘要
水生态完整性是指水生态要素的完整性。各生态要素交互作用,形成了完整的结构和功能。生态要素各具特征,对整个水生态系统产生重要影响。水生态要素特征概括起来共有五项,即水文情势时空变异性;河湖地貌形态空间异质性;河湖水系三维连通性;适宜生物生存的水体物理化学特性范围以及食物网结构和生物多样性。河湖生态修复的任务是修复水文、地貌、水体化学物理性质和生物这些生态要素,部分恢复水生态要素的特征。
The integrity of aquatic ecosystem refers to the integrity of the dominant component of aquatic ecology. The dominant ecological components interact with each other,and then constitute an integrated structure and function of the aquatic ecosystem.All the dominant ecological components have their own features and bring important impacts on the whole aquatic ecosystem.Generally,the dominant ecological components include five items,i. e. the temporal and spatial variability of hydrological regime,the spatial heterogeneity of river and lake morphology,the 3-D connectivity of river-lake system,the range of the physicochemical property of water suitable for the survival of organisms as well as the structure of food web and biodiversity. The task of the eco-restoration of river and lake is to rehabilitate the dominant ecological components of the hydrology,morphology,physicochemical property of water and biology therein,and thus partly restore the features of the dominant ecological components.
出处
《水利水电技术》
CSCD
北大核心
2015年第6期42-47,共6页
Water Resources and Hydropower Engineering
关键词
水生态完整性
生态要素
水文情势
变异性
空间异质性
三维连通性
食物网
生物多样性
aquatic ecosystem integrity
dominant ecological components
hydrological regime
variability
spatial heterogeneity
3-D connectivity
food web
biodiversity
