Results 231 to 240 of about 490,182 (265)

Response of Three Grasses to Two Soils and a Water Table Depth Gradient

Ecology, 1966
Three grasses–Calamagrostis canadensis, Andropogon gerardi, and Koeleria cristata–were grown for 13 months on two soil slopes in a greenhouse. One slope was composed of sand and the other loamy sand; the water table of each was controlled to create equal catenas with sites ranging from dry to wet. All three grasses were seeded uniformly over each tank.
Mueller-Dombois, Dieter, H. P.Sims
openaire   +1 more source

Accuracy of spatio-temporal RARX model predictions of water table depths

Stochastic Environmental Research and Risk Assessment (SERRA), 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Knotters, M., Bierkens, M.F.P.
openaire   +3 more sources

ICOS Ecosystem Instructions for Water Table Depth Measurements

2017
This document describes how to organize, set up, and collect the measurements of water table depth at ICOS ecosystem stations. The document is structured in four different sections with the aim to facilitate the use and application: - Measurements: in this section the sensors and material needed, the setup and methods to correctly collect the data and ...
openaire   +1 more source

NO3-N and Metolachlor Concentrations in the Soil Water as Affected by Water Table Depth

Transactions of the ASAE, 1996
Experiments were conducted in lysimeters to study the effect of shallow water table (WT) depths on the transport of two commonly used agricultural chemicals, nitrate-N and metolachlor, to shallow groundwater. Groundwater samples were collected from 0.20-, 0.40-, and 0.60-m depths using suction tubes during the growing season.
Sarwar, Tahir, Kanwar, Rameshwar
openaire   +2 more sources

Radio Wave Monitoring of the Depth and the Salinity of the Water Table

1973
The extensive exploitation of the earth’s natural reserves in recent years and the ever-present danger of their pollution and ultimate destruction, make it imperative to implement new effective methods to monitor repeatedly, the quality and quantity of our indispensable resources.
openaire   +1 more source

Refraction determination of water table depth and alluvium thickness

Geophysics, 1968
Abstract During an investigation of alluvium [in Wyoming] using a shallow refraction seismograph, time-distance curves obtained indicated two refraction interfaces. The shallower of the interfaces is the ground-water table, whose depth was obtained with an accuracy of + or -10 percent. The deeper interface is either the surface of the
openaire   +1 more source

Review of water table depth planning for a multi objective water management system

Irrigation and Drainage Systems, 1993
In this paper, the concepts for planning and design of drainage depth will be reviewed in relation to the different requirements for maximizing crop production. The relationships of the drainage depth with other design parameters and their interdependency will be discussed.
openaire   +1 more source

Water-film depth assessment for pavements of roads and airport runways: A review

Construction and Building Materials, 2023
Jianming Ling, Jiake Zhang
exaly  

Yield, water use efficiency and nitrogen recovery in potato: influence of water table depth

1997
A lysimeter experiment was performed to study the influence of three permanent water table depths (0.45 m, 0.85 m and 1.20 m below the soil surface, WT45, WT85 and WT120) and a variable one (ranging between 0.40 m to 1.30 m, WT(var)) on photosynthesis, yield, tuber quality, WUE and NUE. Treatments were compared with a well-watered top-irrigated control.
Gianquinto G., Dalla Costa L., Giovanardi G.   +2 more
openaire   +2 more sources

Coupling analysis of the heat-water dynamics and frozen depth in a seasonally frozen zone

Journal of Hydrology, 2021
Xudong Zhang, Yajun Wu
exaly