腐植质灰黏土
Humic glei soil
humic gley soil
滞水
Stagnant
Perched
backwater
stagnant water
perched ground water
slack water
Perched water
停滞水
stagnatic water
stagnant water
dead water
上层滞水
Perched water
Upper perched water zone
积滞水
stagnant water
standing water
impounded water