权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Contemporary Aspects of Irrigation Tanks, and Management and Conservation Strategies for their Wise-use

灌溉水箱的当代问题及其合理使用的管理和保护策略

基本信息

批准号：
12556037
负责人：
KAWACHI Toshihiko
金额：
$ 8.58万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2002
项目状态：
已结题

项目摘要

Contemporary aspects of irrigation tanks in Japan were investigated mainly through field observations in order to build management and conservation strategies for their wise-use. Main fruits of the research are summarized as follows.・Developing a novel methodology for estimating dynamic properties of the food runoff, it was verified that irriga-tion tanks could mitigate flood even when they have no vacancy for storing flood.・Using the modem control theory, an optimal control/management model for interconnected irrigation tanks system was developed.・Reproducing seismic vibrations at a few real irrigation tanks, the seismic behaviors of the embankment were ana-lyzed using spectral and model approaches. And, an attempt to find a transaction of major leaky-path was made at an overage irrigation tank. A statistical approach to confined seepage problem also was developed with generation of random permeability filed. Using the percolation theory, furthermore, an attempt was made to reproduce spatial spanning that forms "impervious wall" or "flow path".・In-situ observations of water quality and biology in irrigation tanks were made, and based on the data obtained, an attempt was made to categorize the tanks from a viewpoint of water quality/algae facets. Through environmental field investigations, causes that generate the water bloom were brought into light.・Structure of multi-functions of irrigation tanks was analyzed. It was demonstrated that the entire function could be structured with major four core functions, and detailed description for each core function was made in relation to sustainable wise-use and existence of the tanks. Finally effective strategies for management and conservation of the tanks were proposed in terms of multi-functioning tanks.

在日本的灌溉水箱的当代方面进行了调查，主要是通过实地观察，以建立管理和保护策略，他们明智的使用。主要研究成果如下：提出了一种新的估算粮食径流动态特性的方法，验证了灌溉蓄水池在没有蓄水空间的情况下也能起到防洪作用。应用现代控制理论，建立了灌区水箱系统的最优控制/管理模型。通过再现几个真实的灌溉水池的地震振动，采用谱分析和模型分析方法，分析了堤坝的抗震性能。并且，试图在一个超龄灌溉池中找到一个主要泄漏路径的交易。通过随机渗透场的生成，建立了求解承压渗流问题的统计方法。此外，利用渗流理论，还试图再现形成“防渗墙”或“流道”的空间跨度。·在灌溉水箱的水质和生物学进行了现场观察，并根据所获得的数据，试图从水质/藻类方面的观点对水箱进行分类。通过环境实地调查，揭示了水华产生的原因。·分析了多功能灌溉水箱的结构。结果表明，整个功能可以构建为四大核心功能，并详细描述了每一个核心功能的可持续明智的使用和存在的坦克。最后从多功能水池的角度提出了水池管理和养护的有效策略。