Assessing sponge cities performance at city scale using remotely sensed LULC changes: Case study Nanjing

📰 Remote Sensing   📅 2021

As a result of high-density urbanization and climate change, both the frequency and intensity of extreme urban rainfall are increasing. Drainage systems are not designed to cope with this increase, and as a result, floods are becoming more common in cities, particularly in the rapidly growing cities of China. To… 🔗 Read more...

Responses of storm-based soil erosion processes to land use changes in the upper Huaihe River basin, China

📰 Environmental Earth Sciences   📅 2020

Better understanding the impacts of land use changes on storm-based sedigraphs in semi-humid and humid regions is critical for their soil erosion control. Based on the LULC, soil, precipitation, evaporation, flow and sediment data in the 1990 s to 2000 s from the Dapoling catchment of the upper Huaihe river… 🔗 Read more...

Enhanced potential ecological risk induced by a large scale water diversion project

📰 Stochastic Environmental Research and Risk Assessment   📅 2020

River regulation by the construction of reservoirs represents one of the greatest challenges to the natural flow regime and ecological health of riverine systems globally. The Danjiangkou (DJK) Reservoir is the largest reservoir on the Hangjiang River and commenced operations in 1967. The reservoir was upgraded in 2012 to provide… 🔗 Read more...

Assessment of potential ecological risk due to hydrological flow regime modification in the Hanjiang River basin 1950-2017

📰 EGU General Assembly Conference Abstracts   📅 2020

River regulation by the construction of reservoirs represents one of the greatest challenges to the natural hydrological regime and ecological health of riverine systems. The Danjiangkou (DJK) Reservoir is the largest reservoir on the Hangjiang River and started operation in 1967 and was upgraded in 2012 to provide water resource… 🔗 Read more...

Responses of meteorological drought-hydrological drought propagation to watershed scales in the upper Huaihe River basin China

📰 Environmental Science and Pollution Research   📅 2019

Spatial scale is a crucial factor in drought propagation and characterization. To investigate the response behavior of the meteorological drought-hydrological drought propagation to different watershed scales, three nested subbasins in the upper Huaihe River basin were selected as case study sites. The Standardized Precipitation Index and the Standardized Streamflow Index… 🔗 Read more...

Potential impact of a large-scale cascade reservoir on the spawning conditions of critical species in the Yangtze River China

📰 Water   📅 2019

Dam building and reservoir operations alter the downstream hydrological regime, and as a result, affect the health of the river aquatic ecosystem, particularly for large-scale cascade reservoirs. This study investigated the impact of the Gezhouba Reservoir (GR) and the Three Gorges Reservoir (TGR) on the spawning conditions of two critical… 🔗 Read more...

Impacts of the Three Gorges Reservoir on its immediate downstream hydrological drought regime during 19502016

📰 Natural Hazards   📅 2019

Impacts of the Three Gorges Reservoir (TGR) on the downstream hydrological extremes always draw public attentions, particularly during its (quasi) normal water storing period. To investigate the impact of the TGR on its downstream hydrological drought regime during different operation stages, Yichang and Cuntan stations were selected as the case… 🔗 Read more...

Is the water level during dry season in Poyang Lake really lower than before

📰 EGU general assembly conference abstracts   📅 2017

The Poyang Lake, the largest freshwater lake in China, has attracted world widely attentions in recent years due to it being dammed or not at the Lake’s outlet. It was reported that the Poyang Lake water levels have been declining significantly in dry seasons, which resulted in severe water supply,… 🔗 Read more...

Quantifying the effect on flood regime of land-use pattern changes via hydrological simulation in the upper Huaihe River basin China

📰 Natural Hazards   📅 2016

Both landscape and river systems over most regions of the world, within China in particular, have experienced unprecedented changes in the past decades, and their impacts from these changes undoubtedly have altered storm runoff generation characteristics and flood regimes in these areas. To assess the effect on flood regime of… 🔗 Read more...

Potential evapotranspiration estimation in the upper Huaihe River basin China

📰 Procedia Engineering   📅 2016

The atmospheric evaporative demand, one of principal components in water cycle, its accurate estimation is essential for hydrological simulation and forecasting. The purpose of this paper was to propose a plant-growth based dual-source potential evapotranspiration distributed model and investigate its feasibility with the upper Huaihe River basin (China) above the… 🔗 Read more...

Hydrological drought forecasting and assessment based on the standardized stream index in the Southwest China

📰 Procedia Engineering   📅 2016

Southwest China is abundant of rainfall and water resources, however, severe and extremely droughts hits it more frequently in recent years, caused huge loss of human lives and financial damages. To investigate the feasibility of the standardized stream index in Southwest China, the Nanpanjiang River basin above the Xiaolongtan hydrological… 🔗 Read more...

Drought assessment by a short-long-term composited drought index in the upper Huaihe River basin China

📰 Advances in Meteorology   📅 2016

Accurate and reliable drought monitoring is of primary importance for drought mitigation and reduction of social-ecological vulnerability. The aim of the paper was to propose a multiscale composited drought index (CDI) which could be widely used for drought monitoring and early warning in China. In the study, the upper Huaihe… 🔗 Read more...

Investigation into impacts of land-use changes on floods in the upper Huaihe River basin China

📰 Proceedings of the International Association of Hydrological Sciences   📅 2015

To investigate the agricultural land-use change on flood regime, the upper Huaihe River basin above the Dapoling station was selected as the case study site. Based on topography, land-use, hydrological and meteorological data in 1990s and 2010s, the improved distributed Xinanjiang model, with potential evapotranspiration being computed by coupling a… 🔗 Read more...

Drought assessment using a multivariate drought index in the Huaihe River basin of Eastern China

📰 Proceedings of the International Association of Hydrological Sciences   📅 2015

The Huaihe River Basin having China’s highest population density (662 persons per km2) lies in a transition zone between the climates of North and South China, and is thus prone to drought. Therefore, the paper aims to develop an appropriate drought assessment approach for drought assessment in the Huaihe River basin, China. Based on the Principal Component Analysis of precipitation, evapotranspiration, soil moisture and runoff, the three latter variables of which were obtained by use of the Xin’anjiang model, a new multivariate drought index (MDI) was formulated, and its thresholds were determined by use of cumulative distribution function. The MDI, the Standardized Precipitation Index (SPI) and the self-calibrating Palmer Drought Severity Index (sc-PDSI) time series on a monthly scale were computed and compared during 1988, 1999/2000 and 2001 drought events. The results show that the MDI exhibited certain advantages over the sc-PDSI and the SPI in monitoring drought evolution. The MDI formulated by this paper could provide a sci 🔗 Read more...

Drought assessment using a multivariate drought index in the Luanhe River basin of Northern China

📰 Stochastic environmental research and risk assessment   📅 2015

With climate change and the rapid increase in water demand, droughts, whose intensity, duration and frequency have shown an increasing trend in China over the past decades, are increasingly becoming a critical constraint to China’s sustainable socio-economic development, especially in Northern China, even more so. Therefore, it is essential to… 🔗 Read more...

Drought assessment using a multivariate drought index in the Luanhe River basin of Northern China

📰 Stochastic environmental research and risk assessment   📅 2015

With climate change and the rapid increase in water demand, droughts, whose intensity, duration and frequency have shown an increasing trend in China over the past decades, are increasingly becoming a critical constraint to China’s sustainable socio-economic development, especially in Northern China, even more so. Therefore, it is essential to… 🔗 Read more...

Development and application of a short-long-term composited drought index in the upper Huaihe River basin China

📰 Proceedings of the International Association of Hydrological Sciences   📅 2015

Accurate and reliable drought monitoring is of primary importance for drought mitigation and reduction of social-ecological vulnerability. The aim of the paper was to propose a short-term/long-term composited drought index (CDI) which could be widely used for drought monitoring and early warning in China. In the study, the upper Huaihe… 🔗 Read more...

Are droughts becoming more frequent or severe in China based on the standardized precipitation evapotranspiration index 19512010

📰 International Journal of Climatology   📅 2014

The Standardized Precipitation Evapotranspiration Index (SPEI) was computed based on the monthly precipitation and air temperature values at 609 locations over China during the period 1951–2010.Various characteristics of drought across China were examined including: long‐term trends, percentage of area affected, intensity, duration, and drought frequency. The results revealed that severe… 🔗 Read more...

Investigation into the impacts of land-use change on runoff generation characteristics in the upper Huaihe River Basin China

📰 Journal of Hydrologic Engineering   📅 2013

Land-use change has significant impacts on hydrologic processes at the watershed level; thus, quantitative assessment on the impacts of land-use change is vital for basin environment protection and water resources sustainable development. Owing largely to computer and geographical information system (GIS) technology improvements, the distributed hydrological models, which allow describing… 🔗 Read more...

Investigation into the Impacts of the Gezhouba and the Three Gorges Reservoirs on the Flow Regime of the Yangtze River

📰 Journal of Hydrologic Engineering   📅 2013

The flow regime of the Yangtze River (Changjiang) has been altered to some extent by intensified human activities over the past decades, particularly dam construction. To assess the impacts of dam building on the flow regime in the Yangtze River, two of the largest reservoirs on the upper reach, i.e.,… 🔗 Read more...

Investigation into the impacts of land-use change on sediment yield characteristics in the upper Huaihe River basin China

📰 Physics and Chemistry of the Earth, Parts A/B/C   📅 2012

The processes of sediment generation in the upper Huaihe River basin have been altered by the intensified human activities over the past decades, particularly land-use change. To investigate the impacts of land-use change on the sediment yield characteristics in the upper Huaihe River, the catchment above the Xixian hydrological controlling… 🔗 Read more...

Impacts of Danjiangkou reservoir on sediment regime of the Hanjiang River

📰 Hydrology Research   📅 2012

With population increase and economic growth, the development of water resources and hydropower resources of the Hanjiang River has been intensified by dam building, and consequently the sediment regime of the Hanjiang River has been altered to some extent. To assess dam-induced alterations in the sediment regime of the Hanjiang… 🔗 Read more...

Impact of the Three Gorges reservoir operation on downstream ecological water requirements

📰 Hydrology Research   📅 2012

With population increase and economic growth, the flow regime of the Yangtze River has been altered to some extent by human activities, particularly dam construction. Dam-induced alterations in the flow regime of the Yangtze River will unavoidably influence water allocation among different water users and instream ecological water requirements may… 🔗 Read more...

Impacts of the Three Gorges-Gezhouba reservoir cascade on the stream temperature regime of the Yangtze River

📰 IAHS-AISH publication   📅 2011

The Yangtze River (Changjiang) is the third largest river in the world, and the alterations in its hydrological regime have global-scale impacts. However, with population increase and economic growth, the stream temperature regime of the Yangtze River has been altered to some extent by human activities, particularly dam construction. The… 🔗 Read more...

Impacts of the Gezhouba and Three Gorges reservoirs on the sediment regime in the Yangtze River China

📰 Journal of Hydrology   📅 2011

The sediment regime of the Yangtze River (Changjiang) has been altered by intensified human activities over the past decades, particularly dam construction. To investigate the impacts of dam building on the sediment regime in the Yangtze River, two of the largest reservoirs on the upper reach, i.e. the Gezhouba reservoir… 🔗 Read more...

Impacts of Three Gorges-Gezhouba reservoir cascade on the heat flux regime of the Yangtze River

📰 Concept. Model. Stud. Integr. Groundw. Surf. Water Ecol. Syst   📅 2011

With population increase and economic growth, the thermal regime of the Yangtze River has been altered to some extent by human activities, particularly dam construction. To assess dam-induced alterations in the thermal regime of the Yangtze River quantitatively, this paper selected two key hydrological stations (Yichang and Cuntan stations) below… 🔗 Read more...

Genetic algorithms based hydropower optimization of the Three Gorges reservoir operation under two reservoir storing water schemes

📰 IAHS-AISH publication   📅 2011

Reservoir-induced alterations in the flow regime of the Yangtze River will unavoidably influence water allocation among different water uses, and as a result, how to optimize reservoir operation to maximize electricity generation is of significance by consideration of different water uses, and this frequently complicates water management decisions. This paper… 🔗 Read more...

Spatial-temporal variations of evapotranspiration in the upper Huaihe River basin

📰 International Symposium on Spatial Analysis, Spatial-Temporal Data Modeling, and Data Mining   📅 2009

Evapotranspiration, which is an important component of water cycle, is a critical variable in determination of local water resources available. This paper selected the upper Huaihe River as case study site. The daily reference evapotranspiration was computed by the Penman-Monteith method, and then the mean annual reference evapotranspiration (ETref), the… 🔗 Read more...

Impact of human activities on the flow regime of the Hanjiang

📰 Proceedings Symposium JS. 3 at the Joint Convention of the International Association of Hydrological Sciences (IAHS) and the International Associaiton of Hydrogeologists (IAH)   📅 2009

The Hanjiang River is the longest tributary of the Yangtze River. With the development of water resources, the flow regime of the Hanjiang River has been altered by dam building to some extent, and consequently water allocation water allocation Subject Category: Miscellaneoussee more details between different water uses may be… 🔗 Read more...