ASCOT Library Zabali Campus

1. Conservation and the environment –
2. Precipitation –
3. Infiltration, evaporation, and transpiration –
4. Runoff –
5. Water erosion and control practices –
6. Water erosion and control practices –
7. Vegetated waterways –
8. Terracing –
9. Conservation structures –
10. Earth embankments and farm ponds –
11. Headwater flood control –
12. Surface drainage and land forming –
13. Open channels –
14. Subsurface drainage design –
15. Location, installation, and maintenance of subsurface drains –
16. Pumps and pumping –
17. Water supply and quality –
18. Irrigation principles –
19. Surface irrigation –
20. Sprinkler irrigation –
21. Microirrigation.

"In this edition the text material has been brought up to date, but it continues to emphasize engineering design of soil and water conservation practices and their impact on the environment, primarily air and water quality. Furthermore, the production of food and fiber remains an important consideration because of increasing United States and world population.
Many of the suggestions from instructors and colleagues have been included. The conversion from English to the International System of Units (SI) is nearly complete except in a few cases, such as rainfall maps, which are not available in SI units. Example problems, student problems at the end of chapters, and most illustrations are in both SI and English units. In most cases, SI and English units are given in round numbers for ease of computation, which may result in slightly different answers for the two systems of units.
As in previous editions, the purpose of this book is to provide a first-course professional text for undergraduate agricultural engineering students and for others interested in soil and water conservation. Subject matter on all the engineering phases of soil and water conservation is included, as is a limited section on hydrology. The first chapter covers general aspects with some worldwide implications; Chapters 2 through 4, hydrology; Chapters 5 through 8, erosion and its control; Chapter 9, conservation structures; Chapter 10, earth dams; Chapter 11, flood control; Chapters 12 through 15, drainage; and Chapters 16 through 21, irrigation.
We have assumed in preparing this edition that the student has taken such basic courses as calculus, surveying, mechanics, hydraulics, and soils; however, a knowledge of these subjects is not essential for understanding many portions of the text. We have attempted to emphasize the analytical approach, supplemented with sufficient field data to illustrate practical applications. Although the text material emphasizes principles rather than tables, charts, and diagrams, the book may provide practicing engineers with readily usable information as well. Many examples and student problems have been included to emphasize design principles and to facilitate an understanding of the subject matter. Computer models and software program sources have been described where applicable in the text and in Appendix I, but detailed programs have not been included because of space requirements and rapid changes and obsolescence of software programs." - Glenn O. Schwab Delmar D. Fangmeier William J. Elliot