Utilization of Sewage Sludge for Terrain Stabilization in Cold Regions. Part II.
Abstract
From June 1975 to September 1976, a research/demonstration study was conducted at CRREL in Hanover, New Hampshire, to investigate the use of sewage sludge, commercial fertilizer and cultivation techniques for Terrain stabilization in cold regions. Twenty-seven test plots on a 16 degrees west-facing slope received various combinations of: (1) surface preparation (tilling, bulldozer tracking, or compacting), (2) nutrient source (sewage sludge or fertilizer), (3) mulching agent (wood fiber mulch or peat moss), and (4) tacking agent (terra Tack III or Curasol). The plots were seeded in either the spring or fall with a constant seed mixture. The effectiveness of the treatments was determined through vegetation yields and soil loss measurements. All three surface preparations effectively reduced erosion. The soil loss was 91% to 94% less than the control and average vegetation yields ranged from 3580 to 5073 lb/acre. Fertilizer treated plots had slightly less average soil loss than those treated with sludge (1.79 vs 2.21 tons/acre). The sludge treated plots, however, produced higher vegetation yields except at the first cutting of the spring seeded plots. There were only minor vegetation differences between the two mulches or between mulched and unmulched plots. However, plots with peat moss had slightly higher soil loss than plots with no mulch or wood fiber mulch. Addition of either tacking agent did not affect plant growth but did increase soil loss slightly.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1979
- Accession Number
- ADA074725
Entities
People
- Antonio J. Palazzo
- David A. Gaskin
- Leonard E. Stanley
- Roy E. Bates
- Susan D. Rindge
Organizations
- Cold Regions Research and Engineering Laboratory