echard
Pronunciations
-
/ˈɛkˌɑː(ɹ)d/
Noun
The portion of water in a sample of soil that is not available to vegetation.
Usage- Dated
- Related words
- Examples
-
More examples (2)
The echard of a given habitat is experimentally ascertained by isolating a block of soil by impermeable plates, allowing it to dry slowly and determining its water-content at the time when the plants growing on it are wilting irrecoverably
Grasses sprout on the sands long before the early rains have restored the echard of adjoining clays and given a surplus as chresard which can initiate grass growth.
Word forms
echards