Infiltration characteristics and hydrologic modeling of disturbed land, Moshannon, Pennsylvania

Technical Report · Sat Aug 01 04:00:00 EDT 1987

DOI:https://doi.org/10.2172/6282936· OSTI ID:6282936

Lemieux, C. R.

A series of 97 infiltration tests were conducted on a 120 ha disturbed watershed (a reclaimed mine site), under variable surface age (1, 2, 3, 4, 8, and 9 years), rainfall intensity (2--11 cm/hr), and antecedent moisture conditions (4--40% by volume). Infiltration characteristics of the minesoils were determined, and the effects of rainfall intensity and change in infiltration with age were explored through qualitative and statistical analyses. Rainfall intensity is an important control on infiltration rate. As intensity increases, initial and final infiltration rate, the 30-minute infiltrated volume, and the saturated wetting depth increase. The strength of the relationship between rainfall intensity and the infiltration parameters increase with minesoil age, up to age 4. Several soil/surface properties of minesoil change with minesoil age, including the grain size distribution, vegetation, and surface roughness. The infiltration characteristics final infiltration rate, 30-minute infiltrated volume, time to first runoff, sorptivity, and Horton's exponent also change as the soil/surface properties change. 32 figs., 11 tabs.

• Research Organization: Pennsylvania State Univ., University Park (USA)
• DOE Contract Number: FG02-84ER60263
• OSTI ID: 6282936
• Report Number(s): DOE/ER/60263-T2; ON: DE89008468
• Country of Publication: United States
• Language: English

Related Subjects

510500* -- Environment
Terrestrial-- Site Resource & Use Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
AGE DEPENDENCE
ATMOSPHERIC PRECIPITATIONS
DISSOLUTION
ENVIRONMENTAL IMPACTS
FLOW RATE
GROUND WATER
HYDROGEN COMPOUNDS
INTERSTITIAL WATER
LEACHING
MINING
MOISTURE
OXYGEN COMPOUNDS
POROSITY
RECHARGE
SEPARATION PROCESSES
SUBSURFACE ENVIRONMENTS
TIME DEPENDENCE
WATER