Gully control in SAT watersheds. Global Theme on Agroecosystems Report no. 15

    Pathak, P and Wani, S P and Sudi, R (2005) Gully control in SAT watersheds. Global Theme on Agroecosystems Report no. 15. Monograph. International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Andhra Pradesh, India.

    [img]
    Preview
    		 PDF - Published Version
    Download (1MB) | Preview

    Divisions

    UNSPECIFIED

    Additional Information

    UNSPECIFIED

    Abstract

    Gully erosion is geographically a widespread problem. It is common in the semi-arid region, characterized by denuded landscape and flash floods. An estimated 4 million ha land in India and 29 million ha of land in Africa are affected by severe gully erosion. Gully erosion is more difficult and expensive to control than other types of soil erosion. A full understanding of erosion processes at various stages of gully development is essential to achieve gully stabilization. Without proper understanding often the measures taken for controlling gully were found unnecessary or ineffective. This report provides the basic knowledge of gully formation and its causes. The classification of gullies and the basic principles of its control are explained. Drawing primarily the experiences from the several on-farm watershed projects implemented by ICRISAT, the report provides the practical approach for gully control in the context of overall watershed development and management. The basic considerations and the design details of various gully control structures, viz, loose rock dam, double-row post-brush dam, double-row post-stone dam, single-row post-stone dam, stone wall dam, masonry check-dam, earthen check-dam and gabion structures are covered in detail. The key hydrological data, ie, runoff volume and peak runoffrate measured at the watershed scale along with design peak runoff rate for the various locations in India are given. These data will greatly assist the watershed implementing agencies in the selection, design, construction and maintenance of gully control structures.

    Item Type: Monograph (Monograph)
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Others > Watershed Management
    Depositing User: Users 6 not found.
    Date Deposited: 07 Nov 2011 04:47
    Last Modified: 07 Nov 2011 04:47
    URI: http://oar.icrisat.org/id/eprint/3766
    Links:
    View Statistics

    Actions (login required)

    View Item View Item
    OAR@ICRISAT is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.