Anthropogenic soils in central Amazonia: farmers' practices, agrobiodiversity and land-use patterns

Promotie

Anthropogenic soils in central Amazonia: farmers' practices, agrobiodiversity and land-use patterns

Promovendus A (Andre) Braga Junqueira
Promotor prof.dr.ir. PC (Paul) Struik
Copromotor dr.ir. TJ (Tjeerd-Jan) Stomph
dr.ir. CJM (Conny) Almekinders
Copromotor dr CR Clement
Organisatie Wageningen University & Research, Centre for Crop Systems Analysis
Datum

wo 30 september 2015 13:30 tot 15:00

Locatie Aula, gebouwnummer 362
Generaal Foulkesweg 1
362
6703 BG Wageningen
0317-483592

Summary

Terra Preta are soils created by indigenous people who lived in Amazonia between 2,500 and 500 years ago. Differently from surrounding soils, patches of Terra Preta are very fertile, and today they are used by local people in many different ways. In my PhD., I have looked at how farmers in Central Amazonia have incorporated these soils into their agricultural and agroforestry systems. I found out that farmers have developed specific knowledge, practices and crop combinations suited to different soils. As Terra Preta provide additional opportunities their presence results in a larger diversity of cultivation strategies, crops and other species at the landscape level. These results improve our understanding of the relationship between people, soils, crops and agroforestry species, and bring useful insights for the development of more sustainable agriculture in tropical regions.