It is strongly recommended to provide mechanism for safe disposal of excess runoff. Improvements in soil conditions and soil-water regime can be accomplished by runoff management techniques. Various field management techniques suitable for dry areas are described below: 1. Indigenous Techniques: a. Farm Bunding: In this technique a bund is constructed around the field using local earth material. Primarily, this [...]
Factors affecting runoff may be divided into those associated with the precipitation, and the watershed characteristics. Factor # 1. Precipitation: Since by far the largest portion of precipitation occurs as rain, and the rainfall directly affects soil erosion, the characteristics of rainstorm and intensity, duration and frequency of rainfall are of interest in describing the runoff. (a) Characteristics of Rainstorm: [...]
After reading this article you will learn about estimating the volume of runoff. Knowledge of the volume of runoff from a watershed is necessary to design the water storage system and surplussing arrangements. Different mathematical models that are developed to predict runoff deal mainly with precipitation characteristics affecting runoff amount and peak rates. In an attempt to simplify and standardize [...]