Ecological sustainability and environmental risks of agricultural intensification in inland valleys in Benin
| Autor: | Paul Kiepe, Brice Tente, Justin Fagnombo Djagba, Sander J. Zwart, Christophe S. Houssou |
|---|---|
| Přispěvatelé: | UT-I-ITC-FORAGES, Faculty of Geo-Information Science and Earth Observation, Department of Natural Resources |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Economics and Econometrics
Irrigation Crop residue Geography Planning and Development 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law DPSIR model 01 natural sciences Sustainable development West Africa 021108 energy 0105 earth and related environmental sciences Agricultural diversification Monocropping business.industry Agroforestry Agricultural intensification n/a OA procedure Inland valley Geography Agriculture ITC-ISI-JOURNAL-ARTICLE Sustainability Land degradation business |
| Zdroj: | Environment, Development and Sustainability, 21, 1869-1890. Springer |
| ISSN: | 1387-585X |
| Popis: | To meet food demand after the failure of irrigation system developments, agricultural intensification is occurring in inland valley agro-ecosystems in sub-Saharan Africa. Agricultural enhancement in inland valleys, which undermines environmental sustainability, was assessed using ‘Driving Force–Pressure–State–Impact–Response’ approach in four agro-ecological zones of Benin. The survey revealed that inland valleys are largely devoid of ligneous species. Crop residues are mainly transferred from inland valley fields to feed cattle, burnt in situ by the farmers themselves or abandoned to wildfires or to pasture—not mulched. Crop diversification is not universal and is limited to rice and vegetables crops. Monocropping of rice, practised by 83.3% of inland valley farmers, requires large chemical fertilizer application despite their impacts on environment including land degradation and water contamination. A major challenge is to determine means of characterizing entire agro-ecosystems of inland valleys in a way that is simple enough to be effectively and efficiently monitored. Inland valley agricultural development projects might include backstopping activities and policies that enable monitoring of chemical inputs and farming practices in inland valleys to reduce negative impacts on the environment and human health. |
| Databáze: | OpenAIRE |
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