Effects of earthworms on some soil physical and chemical properties: their potential use in tropical agriculture Report as inadecuate




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In the ecosystems of the humid tropics, earthworms are often the major component of soil macrofauna. In these systems, earthworm effects on physical and chemical soil properties are important. They affect soil porosity and structural stability as well as soil organic matter dynamics and nutrient release. Land managements used in tropical areas lead to a dramatic decrease of both density and biomass of earthworms and at short term, soil degradation by overmineralization and erosion. The management of earthworms in order to restore properties of soils degraded by successive crops or to sustain fertility of low-input agricultural systems is discussed.

Keywords: Earthworms ; humid tropics ; soil organic matter ; soil aggregation

Other Titles: Effet des vers de terre sur quelques proprietés physiques et chimiques des sols: Leur utilisation potentielle en agriculture tropicale

Subject(s): Land Economics/Use

Research and Development/Tech Change/Emerging Technologies

Issue Date: Jul 01 1993

Publication Type: Conference Paper/ Presentation

Language: English

Total Pages: 14

Record appears in: Caribbean Food Crops Society > 29th Annual Meeting, 1993, Martinique





Author: Rossi, J.P. ; Blanchart, E. ; Lavelle, P.

Source: http://ageconsearch.umn.edu/record/258892?ln=en







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