Are long-term vegetation dynamics useful in monitoring and assessing desertification processes in the arid steppe, southern Tunisia
| Autor: | Sandrine Jauffret, Ali Hanafi |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
geography.geographical_feature_category
Ecology Perennial plant Land use Agroforestry Steppe media_common.quotation_subject land degradation steppe Arid Geography Desertification ecological change Land degradation Dominance (ecology) Plant cover land useland cover arid land Ecology Evolution Behavior and Systematics Earth-Surface Processes media_common |
| Popis: | A vegetation-focused diachronic study to monitor and assess desertification processes in the southern Tunisian steppes was carried out between 1975 and 2000. Climatic variability and land use changes have caused considerable changes in vegetation units and in the structure of ecological systems during the past 25 years. About 10% of the steppe area has been taken over by agriculture, shrinking perennial plant cover has led to the appearance and dominance of a highly degraded vegetation class (perennial plant cover |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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