well drained   (よく排水された)

Red foxes prefer to dig their burrows on well drained soils.

Sunny exposure and well drained soil.

Here the soil is moderately well drained and rapidly permeable.

poorly drained

Gleysols and peat bogs occupy poorly drained areas.

The bottom is poorly drained and about in width.

The dominant soil is Esquon clay, a poorly drained vertisol.