Arid
DOI10.1098/rstb.2006.1978
Prehistorically modified soils of central Amazonia: a model for sustainable agriculture in the twenty-first century
Glaser, Bruno
通讯作者Glaser, Bruno
来源期刊PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
ISSN0962-8436
出版年2007
卷号362期号:1478页码:187-196
英文摘要

Terra Preta soils of central Amazonia exhibit approximately three times more soil organic matter, nitrogen and phosphorus and 70 times more charcoal compared to adjacent infertile soils. The Terra Preta soils were generated by pre-Columbian native populations by chance or intentionally adding large amounts of charred residues ( charcoal), organicwastes, excrements and bones. In this paper, it is argued that generating new Terra Preta sites (’Terra Preta nova’) could be the basis for sustainable agriculture in the twenty-first century to produce food for billions of people, and could lead to attaining three Millennium Development Goals: ( i) to combat desertification, ( ii) to sequester atmospheric CO(2) in the long term, and ( iii) to maintain biodiversity hotspots such as tropical rainforests. Therefore, large- scale generation and utilization of Terra Preta soils would decrease the pressure on primary forests that are being extensively cleared for agricultural use with only limited fertility and sustainability and, hence, only providing a limited time for cropping. This would maintain biodiversity while mitigating both land degradation and climate change. However, it should not be overlooked that the infertility of most tropical soils ( and associated low population density) is what could have prevented tropical forests undergoing large- scale clearance for agriculture. Increased fertility may increase the populations supported by shifting cultivation, thereby maintaining and increasing pressure on forests.


英文关键词Terra Preta Amazonian Dark Earths C sequestration humid tropics charcoal slash and char
类型Article
语种英语
国家Germany
收录类别SCI-E
WOS记录号WOS:000243976000003
WOS关键词CARBON SEQUESTRATION ; ORGANIC-MATTER ; BLACK CARBON ; CROPPING SYSTEMS ; ATMOSPHERIC CO2 ; FOREST PLOTS ; LAND-USE ; SEDIMENTS ; CHARCOAL ; TROPICS
WOS类目Biology
WOS研究方向Life Sciences & Biomedicine - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/155627
作者单位(1)Univ Bayreuth, Inst Soil Sci & Soil Geog, D-95440 Bayreuth, Germany
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GB/T 7714
Glaser, Bruno. Prehistorically modified soils of central Amazonia: a model for sustainable agriculture in the twenty-first century[J],2007,362(1478):187-196.
APA Glaser, Bruno.(2007).Prehistorically modified soils of central Amazonia: a model for sustainable agriculture in the twenty-first century.PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,362(1478),187-196.
MLA Glaser, Bruno."Prehistorically modified soils of central Amazonia: a model for sustainable agriculture in the twenty-first century".PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 362.1478(2007):187-196.
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