claypan


Also found in: Encyclopedia, Wikipedia.

clay·pan

 (klā′păn′)
n.
1. A layer of hardpan consisting primarily of clay.
2. Australian A shallow depression that contains sediments rich in clay and silt, the surface of which has been hardened and dried by the sun.

claypan

(ˈkleɪˌpæn)
n
(Geological Science) a layer of stiff impervious clay situated just below the surface of the ground, which holds water after heavy rain
References in periodicals archive ?
Range claypan soil improvement: response from furrowing and ripping in northwestern South Dakota.
Ilewerr also means 'salt crust', such as that found on a claypan.
Echidna Dreaming' based on the original artwork, 'Echidna Dreaming At Tjungaringya,' depicting body paint designs associated with Tingari ceremonies relating to the Tjilkamata (Echidna) Dreaming at the claypan and rockhole site of Tjungaringya, south of Lake Mackay.
Site-specific evaluation of the CROPGRO-soybean model on Missouri claypan soils.
Lead researcher Kelly Nelson monitored fields of poorly drained claypan soil that was planted with corn after soybean.
Pre-mining soils are largely order Alfisols and Subgroup Typic Fragiudalfs (Miles and Weiss, 1978) including infertile fragipan and claypan soils.
on the edge of the claypan dad's dogs leapt out of the station
These tally with a hand-drawn map of the claypan excavations by the Australian Museum palaeontologist C.
Erosion has caused topsoil loss on many claypan soils.
nonripped soils; Old marshlands and lake beds, now irrigated; a citrus experiment station with altered claypan layers; demonstration of deep-ripping equipment.
It is also concentrated along the Michigan peninsula, in central Wisconsin and Minnesota, in the claypan soils of eastern Texas, and on the tablelands of central Nebraska.
While few other crops can grow in the poorly draining claypan of the Sacramento River floodplain, the packed soil holds the water that rice roots in, and--combined with the valley's temperate climate--creates nearly perfect growing conditions for rice.