The phrase "active runoff" is correct and usable in written English.
It can be used in contexts related to hydrology, environmental science, or agriculture to describe the flow of water that occurs when precipitation exceeds the absorption capacity of the soil.
Example: "After the heavy rain, the active runoff from the fields contributed to the rising water levels in the nearby river."
Alternatives: "surface runoff" or "flowing runoff".
The slope ensures continuous drainage of surface and active layer runoff throughout the thaw season, and well-drained conditions in the uppermost 20 30 cm of peat.
Emission of active substances into runoff proved to be a discontinuous process.
The New World mine was sited only a few miles from Yellowstone National Park, in seismically active terrain, and any runoff from the acidic wastes it generated would have drained into the Clark's Fork of the Yellowstone River, as well as the park itself.
The concentration of the active substance increased in runoff even 1 year after its application.
The amounts of active substances detected in runoff water during the whole periods of the experiments differed between 3.4 and 5.4 % of the original amount of diuron, between 5.3 and 9.9 % of the original amount of OIT, and between 1.0 and 1.3 % of the original amount of terbutryn during 18 25 months of outdoor exposure.
The water management network employs a closed loop system, which maintains and isolates all AMD and combustion byproducts disposal runoff within the active operation.
The suprapermafrost groundwater discharge decreases exponentially with active layer frozen processes during autumn runoff recession, whereas the ratio of groundwater discharge to total runoff and the direct surface runoff coefficient simultaneously increase.
The bidirectional freezing of the active layer controls and changes the autumn runoff processes and runoff composition.
Under field conditions, plots in bermudagrass where mole crickets were active had 41% reduction in runoff and a 12% greater infiltration relative to un-infested turfgrass.
Given this complexity and the wide range of influencing parameters, it is not surprising that despite research efforts spanning over almost a century, wind-driven rain and rainwater runoff are still very active research subjects.
