SALT MOVEMENT UNDER LEVEL-BASIN IRRIGATION

被引：3

作者：

CHAMPION, DF ^{[1
]}

KRUSE, EG ^{[1
]}

OLSEN, SR ^{[1
]}

KINCAID, DC ^{[1
]}

机构：

[1] COLORADO STATE UNIV, USDA ARS, FT COLLINS, CO 80523 USA

来源：

JOURNAL OF IRRIGATION AND DRAINAGE ENGINEERING | 1991年 / 117卷 / 05期

关键词：

D O I：

10.1061/(ASCE)0733-9437(1991)117:5(642)

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Level-basin irrigation has been studied at two sites in western Colorado for seven years. This paper describes changes in the salinity profile in the root zone under level-basin irrigation. On soils with initially low salt content, salt concentrations in the soil profiles increased under level-basin irrigation, because the irrigation efficiencies are greater than for prior practices. Conversely, good water management and uniform applications on level basins lowered the salt content in the top 60 cm of soils with high initial salt content. After a few years of level-basin irrigation with Colorado River water, in either case, the salt content equilibrated at levels that do not restrict growth of common field crops.

引用

页码：642 / 655

页数：14

共 15 条

[1]

Alleviation of salt load in irrigation water return flow of the upper Colorado River basin, pp. 1-136, (1977)

[2]

Evans R.G., Walker W.R., Skogerboe G.V., Smith S.W., Evaluation of irrigation methods for salinity control in Grand Valley, Report EPA-600/2-78-161, pp. 1-188, (1978)

[3]

Erie L., Dedrick A.R., Level-basin irrigation: A method for conserving water and labor, USD A Farmers' Bulletin, 2261, pp. 1-23, (1979)

[4]

Hydrodata-USGS quality of water, West 1: Surface water, (1990)

[5]

Jensen M.E., Scheduling irrigations with computers, J. Soil Water Conserv, 24, 8, pp. 193-195, (1969)

[6]

Kincaid D.C., Kruse E.G., Duke H.R., Paired hydraulic weighing lysimeters for evapotranspiration measurement, Paper No. 79-2513, (1979)

[7]

Kincaid D.C., Kruse E.G., Duke H.R., Champion D.F., Computed evapotranspiration to estimate leaching fractions, Trans. ASAE, 22, 2, (1978)

[8]

Kruse E.G., Lateral sizes for efficient level-basin irrigation, Trans. ASAE, 24, 4, (1981)

[9]

Kruse E.G., Champion D.F., Young D.A., Kincaid D.C., Levelbasin irrigation in the upper Colorado River Basin, Proc. of the 12th Congress, pp. 449-463, (1984)

[10]

Kruse E.G., Yoder R.E., Cuevas D.L., Champion D.F., Alfalfa water use from high, saline water tables, Paper No. 86-2597, (1986)

← 1 2 →