Abstract The changing climate and intensifying human activities have made an impact on the hydrological processes in upper Yangtze River (UYR), but quantifying their effects remains uncertain. This study used Budyko framework to investigate response of runoff ( Q ) change during 1956–2017 evaluate impacts activities, including land use/cover change, water use, dam construction, vegetation watershed characteristic. Results show that is dominant driver variations Wujiang (WJR), Jialing (JLR),...

Major disasters cause loss of life and serious disturbance to livelihoods. Integrative innovative risk management is needed reduce the impacts such a disturbance. To pursue this, better understanding current level disaster indispensible. Following this line thinking, present work was intended evaluate various aspects flood in Japan using recent case major flooding that occurred last autumn as result storm. The focus on vulnerability assessment for disaster-stricken area kinds information...

Flood is a natural phenomenon but flooding causes damage to human society. In recent decades, flood risk has been intensified due rapid urbanization and climate change. Furthermore, it becomes more complicated in regions where social vulnerability evolves with mechanisms such as population aging. This paper provides an analysis of Japan relation change It highlights changes hazard exposure, which resulted higher vulnerability. Especially, detected turning point the frequency heavy rainfalls...

This study examined the key factors for improving quality of environmental impact assessment reports through statistical tests and path analysis. The Lee-Colley review package was used to samples 120 prepared by Japan International Cooperation Agency dating from 2001 2012. result showed that alternatives analysis public involvement could be reports. When number stages went up, evaluation criteria an increasing trend improved. Finally, pointed out effectiveness with a wide range Further...

Knowledge of landscape fragmentation is known to be important in ecological integrity, hydrological processes, urban planning, sustainable land management, and policymaking. Recent anecdotal studies reveal a need for analytical quantification at different levels. Therefore, the present study was conducted KoozehTopraghi Watershed, Ardabil Province, Iran, where covers by uses/covers, (a) explore spatial pattern metrics comprehensively scales, (b) distinguish hot spots, (c) investigate...

Hydrological drought (HD) characterization with different return periods is essential to appropriately design the best water management practices. In particular, characterizing interactive relations of discharge, drought, and using a novel triple diagram can deepen interpretation regional droughts, which have not been adequately considered, especially in semi-arid areas. Considering critical role HD exploitation Iran, this study was therefore conducted analyze rivers Ardabil Province (area =...

Attempts at flood management during the 20th century resulted in more disasters. To gain a better understanding of what went wrong, it is necessary to examine historical evidence, seek ancient wisdom and compare practices different countries. This study examines concepts China Japan periods time history differences two countries’ current retarding basins. It reveals that Western Han Dynasty (206 BC–24 AD), proposed redirect river course sufficient capacity, this same concept was realized,...

The reciprocated traveling wire EDM is a unique type of machine, in which the electrode not discarded after passing discharge gap but being re-winded on drum instead. It specific features such as ultra-thick workpiece cutting and reuse electrode. While variable height workpieces with constant machining parameters, this WEDM faces same challenges western style WEDM, either risk breakage or low speed. Due to intermittent process varying characteristics, online estimation becomes even more...

A water allocation policy that aimed to balance demand with availability ensure sustainability was implemented in an arid region of China over ten years ago. This policy’s success assessed across three dimensions: society, the environment, and economy. While assessment not intended be comprehensive, it highlighted best outcomes intervention while revealing some hidden issues. It found although successful placing a ceiling on use middle reaches Heihe River, Water User Association, one main...

Weather extremes negatively affect socioeconomic developments in arid and semi-arid areas (ASALs) increase vulnerability of residents to food water insecurity. Thus, communities adapt such weather using Traditional Ecological Knowledge (TEK) and/or Modern Technologies. farming technologies land resource ASALs have past ignored TEK, most cases led undesired outcomes. It's against this backdrop that study was conceived assess TEK among the Turkana people, its application contribution security....

The present study conducted a field survey of water quality along the Chao Phraya River during past three years. main objective was to better understand spatial–temporal variations in relation season and channel morphology. It assessed terms chemical parameters, bacteria, phytoplankton. results revealed duality seasonal effect for nutrients. rainy degraded by increasing nutrient concentration waterway beginning, but cleaned it up dilution end. However, this did not apply Escherichia coli (E....

It is a well-accepted notion that women are more vulnerable to natural disasters than men, especially in developing countries. However, developed countries, how women’s empowerment by economic and social development has reduced the gender gap vulnerability remains insufficiently answered. As Japan passed its golden age, moving into an aging society, study on difference flood evolved can contribute better understanding of types causes vulnerability, leading risk management new context....

An effective flood warning system is crucial for successful management. Flood systems have been developed in many countries across the world. However, scientific literature on has mainly focused technical capacity building, and effectiveness of mobilizing evacuation was much understudied. Japan a country with long history fighting against disasters; evaluation its practices providing warnings are certainly important further research development Japan, sharing experience lessons rest world...

For efficient and targeted management, this study demonstrates a recently developed non-point source (NPS) pollution model for year-long estimation in the Pingqiao River Basin (22.3 km2) China. This simple but physically reasonable estimates NPS export terms of land use by reflecting spatial hydrological features runoff measurements under different land-use types. The was separately analysed distributed model, hydrograph-separation technique, an empirical water quality sub-model. Simulation...