由于贵州喀斯特地貌发育显著,导致水资源分布不均,各类用水无法得到充分保障。根据统计数据,贵州目前拥有大约2000座水库,其中大部分水库已从发电和防洪功能转变为主要以供水为目的,其次兼顾发电和防洪。研究以贵州红枫湖水库为研究区域...由于贵州喀斯特地貌发育显著,导致水资源分布不均,各类用水无法得到充分保障。根据统计数据,贵州目前拥有大约2000座水库,其中大部分水库已从发电和防洪功能转变为主要以供水为目的,其次兼顾发电和防洪。研究以贵州红枫湖水库为研究区域,采用被广泛应用于水库水文特征变化评估的变异性范围法(Range of Variability Approach,RVA),对其进行分析。根据主要水文信息,从流速变化幅度、持续时间、频次、历时性和变化率等多个角度,分析了33个关键生态价值参数的水文情势变化规律。水文情势的变化规律是影响河流流域生态系统结构和功能变化的重要驱动因素。综合分析国际水文演变指数(IHA)的基础上,定量分析了喀斯特流域水库水文情势特征的变化规律,为流域规划决策提供了数据和理论基础。展开更多
Changes in hydrometeorological characteristics and risks have been observed and are projected to increase under climate change. These considerations are scientifically well studied and led to the development of a comp...Changes in hydrometeorological characteristics and risks have been observed and are projected to increase under climate change. These considerations are scientifically well studied and led to the development of a complex policy framework for adaptation and mitigation for hydrometeorological risks. Awareness for policy actions is growing worldwide but no legal framework is in place to tackle climate change impacts on water at a global scale. With the example of international frameworks and the legislation on EU-level, this article elaborates that hydrometeorological risks are not considered in the framework of one single policy. However, various policy instruments are directly or indirectly considering these risks at different operational levels. It is discussed that a tailor-made framework for hydrometeorological risks would improve coordination at international or national level. A major drawback for a single operational framework is that hydrometeorological risks are scientifically tackled in two large communities: the disaster risk reduction community and the climate change adaptation community, both of which are bound to different research and operational funding budgets. In future, disaster risk reduction and climate change adaptation will need been seen as a complementary set of actions that requires collaboration.展开更多
文摘由于贵州喀斯特地貌发育显著,导致水资源分布不均,各类用水无法得到充分保障。根据统计数据,贵州目前拥有大约2000座水库,其中大部分水库已从发电和防洪功能转变为主要以供水为目的,其次兼顾发电和防洪。研究以贵州红枫湖水库为研究区域,采用被广泛应用于水库水文特征变化评估的变异性范围法(Range of Variability Approach,RVA),对其进行分析。根据主要水文信息,从流速变化幅度、持续时间、频次、历时性和变化率等多个角度,分析了33个关键生态价值参数的水文情势变化规律。水文情势的变化规律是影响河流流域生态系统结构和功能变化的重要驱动因素。综合分析国际水文演变指数(IHA)的基础上,定量分析了喀斯特流域水库水文情势特征的变化规律,为流域规划决策提供了数据和理论基础。
文摘Changes in hydrometeorological characteristics and risks have been observed and are projected to increase under climate change. These considerations are scientifically well studied and led to the development of a complex policy framework for adaptation and mitigation for hydrometeorological risks. Awareness for policy actions is growing worldwide but no legal framework is in place to tackle climate change impacts on water at a global scale. With the example of international frameworks and the legislation on EU-level, this article elaborates that hydrometeorological risks are not considered in the framework of one single policy. However, various policy instruments are directly or indirectly considering these risks at different operational levels. It is discussed that a tailor-made framework for hydrometeorological risks would improve coordination at international or national level. A major drawback for a single operational framework is that hydrometeorological risks are scientifically tackled in two large communities: the disaster risk reduction community and the climate change adaptation community, both of which are bound to different research and operational funding budgets. In future, disaster risk reduction and climate change adaptation will need been seen as a complementary set of actions that requires collaboration.
