Runoff and its evolution, based on hydrometeorological data fromsurface measurement stations, are analyzed for the upper reaches of the Yellow River above Tangn
Using the method of Constanza R, the annual value of ecosystem services of Macao was3.302× 10^6 US dollars in 1983, equivalent to 26.5250×10^6MOP, whe
A field experiment was conducted to study the effect of different crop sequences on water use, growth and yield of green gram (Vigna radiata (L) Wilezek) during
A certain pattern of channel is the product of itsself-adjustment under given boundary,discharge and sediment conditions. Based upon the principle of process-re