TY - SER TI - Journal of the Irrigation and Drainage Division. Vol. 106 No. 2 (1980) PY - 0000///[date of publication not identified] CY - New York : American Society of Civil Engineers. N1 - It contains of Papers, Technical Notes and Discussions for 1980 in Vol. 106 No. 2; Profile Soil Moisture from Surface Measurements / Thomas J. Jackson. Storage of Freshwater in Saline Aquifers / Satya P. Singh and Vadali V. N. Murty. Water Retention Measurement for Soils / Charles Su and Royal H. Brooks. Drain Depth and Sub-irrigation in Layered Soils / Yau K. Tang and R. Wayne Skaggs. Analytical-Numerical Computation of Infiltration / Antonis D. Koussis and Siu-Lun Chow. Erosivity Values for Individual Design Storms / Keith R. Cooley. TECHNICAL NOTES : Proc. Paper 15450 - Pumping Energy Reduction by Modified Cost Analysis / Shu-Tung Chu. DISCUSSION : Proc. Paper 15445 - Hydrologic Impacts of Silvicultural Activities by Charles A. Troendle (Mar., 1979) / Richard H. Hawkins. Prediction of Non-Darcy Flow in Porous Media by Jan de Vries (June, 1979) / Nazeer Ahmed. Storage Coefficients from Ground-Water Maps by Brij M. Sahni and Harbhajan S. Seth (June, 1979. Prior Discussion: Mar., 1980) / Mostafa M. Soliman ER -