Abstract

PurposeThe purpose of this paper is to illustrate the benefits of reintroducing traditional grazing systems practices for improving arid rangelands. Grazing is the most extensive land use in southern Tunisia, but the rangelands have suffered many decades of severe degradation due to profound socioeconomic changes and the emergence of an agro-pastoral society in place of the former pastoral one. Traditional grazing systems (gdel and herd mobility), which had historically allowed for grazing deferment and control of grazing livestock were abandoned. Yet grazing management strategies are important tools to sustain integrated livestock rangeland production systems in dry areas in the face of ongoing climate change and human pressure.Design/methodology/approachThis study assesses the revival of traditional best practices of rangeland resting in a representative community. Total plant cover, species composition, flora richness and range production were determined in six rangeland sites subjected respectively to one, two and three years of rest; one and two years of light grazing after rest; and free grazing (control).FindingsResults showed that dry rangelands keep their resilience to the negative effects of climate change once human pressure is controlled. A maximum of two years of rest is enough to sustainably manage the rangelands in southern Tunisia, as this protection showed considerable and positive effects on the parameters scored.Originality/valueThe revival of the traditional best practices under new arrangements adapted to current biophysical and socioeconomic conditions would be an excellent tool to mitigate the negative effects of frequent droughts and reduce the animal feed costs that poor farmers face.

Highlights

  • Rangelands are the dominant land use in southern Tunisia under arid and desert climates

  • The rainfall was well distributed during the season with a good fall amount (30 mm), considered by many authors as very efficient for seedlings emergence and vegetation growth

  • The latter is very beneficial for seed production of C3 plants and for growth of C4 plants, chenopodiaceous species

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Summary

Introduction

Rangelands are the dominant land use in southern Tunisia under arid and desert climates. Almost all rangelands in arid areas of Tunisia (with a mean annual rainfall of less than 200 mm) are grazed continuously without any restriction on stocking rate. Such changes have led to rangeland deterioration. The degradation of soils and the loss of perennial palatable species, mainly grasses, are two direct results of the increasing anthropic pressure on arid rangelands in Tunisia (Ouled Belgacem et al, 2006a, 2006b; Tarhouni et al, 2007a). The negative effect of overgrazing, the main anthropic factor, is in the excessive removal of the living parts of high range value species, which may lead to their extinction

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