【摘 要】
:
Japan ranks fifth in the world for the number of large dams. Environmental impacts of large dams are known, such as enormous losses of water or disruption of fi
【机 构】
:
Graduate School for International Development and Cooperation
论文部分内容阅读
Japan ranks fifth in the world for the number of large dams. Environmental impacts of large dams are known, such as enormous losses of water or disruption of fish spawning, however, impacts of the dams on their up streams are functions of topography of the up stream. Haizuka Dam is located in Hiroshima Prefecture, Japan and its implementation will start in 2006. This large dam influences its up stream through dam making activities, which occurs in order and with different spatial presences that were categorized into chronological and spatial impacts. In this case study, spatial impacts were further divided into horizontal and vertical ones. The horizontal impacts were identified as new roads, diversion tunnel, dam lake, and submerged cultivated land, while vertical impacts were recognized as submerged historical monuments, slope protections, dam body, and deforested area in the reservoir. There were convergences of spatial and temporal impacts, however, the extent of the impacts was limited to the lake boundary.
其他文献
A seven-amino acid epitope GPGRAFY at the tip of the V3 loop in HIV-1 gp120 is the principal neutralizing epitope, and a subset of anti-V3 antibodies specific for this epitope shows a broad range of n
文章主要讨论大城市建立能源储备的重要性和必要性 ,西方国家的现状和发展趋势 ,能源储备的投融资方法 ,以及克服城市发展中能源瓶颈的各种对策。
The article mainly discu
Gene deletion vector pXL05(pKC1139∷△olmA1 +△olmA4) was used to disrupt oligomycin PKS encoding genes (olmA) in Streptomyces avermitilis CZ8-73, the producer
Rice fields provide food for over half of the world population but are also an important source of atmospheric CH4. Using the climate-based GIS empirical model
通过Ti6Al4V/TA1扩散偶的制备及其热处理试验,运用OPM,SEM以及EDS技术对扩散连接区域的组织、形貌、成分进行分析.结果表明:扩散连接界面充分结合,合金元素Al和V从Ti6A14V侧
We describe a new titanosaurian sauropod dinosaur, Borealosaurus wimani gen. et sp. nov., based on a distinctive mid-distal caudal vertebra from the early Late
This paper presents a new approach of designing the revolving cutter with constant pitch, and pro-vides geometric models. The corresponding models in the non-nu
This study was undertaken to construct a preliminary spatial analysis method for building an urban-suburban-rural category in the specific sample area of centra
Ecological restoration is widely employed from tens to millions of hectares in space, and from tens of days to thousands of years in time, which forces consider
Deformation twins and stacking faults were observed in nanostructure Al-Mg alloys subjected to high pressure torsion. These observations are surprising because