from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an instrument that measures the percolation of water through soil
from the GNU version of the Collaborative International Dictionary of English
- n. An instrument for measuring the water that percolates through a certain depth of soil.
from The Century Dictionary and Cyclopedia
- n. An instrument for measuring the natural percolation of rain through a given depth of soil.
- n. An instrument for determining the quantity of matter held in solution in a liquid.
Sorry, no etymologies found.
The station sits atop a weighing lysimeter, which is helping determine how much water growing plants actually use.
There is, of course, a more direct method of water-use estimation, which measures water abstraction from a lysimeter containing soil and the growing plant.
Some different soil types of the pampa were tested on their water holding capacity in a lysimeter experiment with alfalfa as the test crop.
He cited the lysimeter, a soil tank, in which loss of moisture is measured.
To see the lysimeter itself, requires going through a metal hatch down a ladder in a 12-foot hole in the ground.
The smaller one is a reference lysimeter in a nearby field that is 5-feet by 5-feet and 8 feet deep.
Building on knowledge gained from 59 other lysimeter installations, ARS soil scientist
With the information from the lysimeter and a measure of how much ground is covered by each crop's leafy canopy, combined with local weather data, scientists can tell Jordanian farmers how much water each crop will need in this arid and water-scarce region, according to Evett. in Beltsville, Md., visited Amman, Jordan, to help determine which practices would best manage large quantities of poultry litter.
Steve Evett in Bushland, Texas, designed and collaborated in building this lysimeter -- the most advanced yet -- for Jordan.
One collaboration between ARS and Jordan has led to installation of a research instrument known as a "weighing lysimeter," an underground device that measures how much water plants use.