摘要
近年来,生态安全评估在方法和实践上得到较大发展,然而,受水库特殊性、系统性认识缺乏等限制,目前尚无水库型水体的有效评估方法.本研究借鉴国外相关理念,分析了水库生态系统特征,强调了水库演变规律特殊性、水库时空异质性、水库生态系统管理综合性.着眼于此,提出了基于IROW(Inflow-Reservoir-Outflow-Watershed)框架的评估方法,将水库上游来水安全、水库水体安全、水库下泄水安全、库区流域影响4类要素纳入框架综合考虑;并阐述了评估预处理与结果分析的关注要点,包括分区、分时段评估等建议.
Ecological security assessments in the method and practice have a rapid progress recently. However, due to the lack of particularity understanding and systematic analysis for reservoir, specific method used in reservoir is still underdeveloped. Referencing with the related abroad concept, characteristics of reservoir ecosystem were analyzed, including its special evolution processes, spatiotemporal dynamics and integrated management approach. In view of these features, the method based on IROW （ Inflow-Reservoir-Outflow-Watershed） framework was put forward. Four elements were incorporated in the framework, namely the reservoir inflow, reservoir as proper, reservoir outflow and watershed influence. In additional, some points on assessment preparation and result discussion were proposed, especially concerning the sub-regional and sub-period evaluation.
出处
《湖泊科学》
EI
CAS
CSCD
北大核心
2010年第2期169-175,共7页
Journal of Lake Sciences
基金
国家国际科技合作计划项目"三峡库区水环境特征与支流富营养化机制研究"(2007DFA90510)
国家科技重大专项课题"流域水环境预警技术研究与三峡库区示范"项目(2009ZX07528-003)联合资助
关键词
水库生态系统
生态安全
IROW框架
评估方法
Reservoir ecosystem
ecological security
IROW framework
assessment methods
