Earthquakes frequently occurred in Sichuan Province, Southwestern China.Historical records show that rivers in the earthquake district had been damaged seriously after earthquakes since 181BC.
More than 94% of the cropland in sub-Saharan Africa, and about 66% of the cropland in Asia is rainfed.Although crop yields of rainfed cropland are relatively poor, rainfed cropland produces about 70%
The instantaneous unit hydrograph (IUH) model is one of the most popular analytical tools in applied hydrology.The IUH model treats a watershed as a linear system-the effective rainfall is the system
The Yangtze Estuary bifurcates on three-stages and enters sea with four outlets.Tide level in estuarine areas is affected by both upstream discharge and downstream tidal wave.
The flood releasing structures of Chipwi Hydropower Station are made up of 7-surface-outlets spillway on the left bank and 2 tunnels on the right bank.
In the western Islamic world of the Middle Ages, water culture emerged as a direct result of the middle-eastern agricultural legacy handed down through the centuries, and gained substantial and produc
In storm drains of coastal cities, anaerobic condition may exist in the sediment layer resulting in sulfate reducing bacteria producing hydrogen sulfide (H2S) as a metabolism by-product which causes a
It is well known that paddy irrigation contributes to groundwater recharge.Field researches have been carried out to identify which part of groundwater originates from irrigation water, by comparing t
In 2011, China had an estimated rural population of approximately 656 million (49% of its total population).Despite recent economic development in rural areas, the countryside lags far behind urban ar