J Environ Manage. 2016 Sep 22. pii: S0301-4797(16)30720-4. doi: 10.1016/j.jenvman.2016.09.057. [Epub ahead of print]
- 1ASTRO Agrosystèmes Tropicaux, INRA, 97170, Petit-Bourg, Guadeloupe, France.
- 2URZ Unité de Recherches Zootechniques, INRA, 97170, Petit Bourg, Guadeloupe, France; MoSAR Modélisation Systémique Appliquée aux Ruminants, INRA, AgroParisTech, 75231, Paris, France.
- 3ASTRO Agrosystèmes Tropicaux, INRA, 97170, Petit-Bourg, Guadeloupe, France. Electronic address: jorge.sierra@antilles.inra.fr.
- 4MoSAR Modélisation Systémique Appliquée aux Ruminants, INRA, AgroParisTech, 75231, Paris, France.
Abstract
A
meta-analysis on end-product quality of 442 composts was performed to
assess the effects of climate and raw materials on compost quality. The
analysis was performed using an ANOVA including a mixed model with
nested factors (climate, raw material and publication effect). Tropical
composts presented lower carbon, nitrogen, potassium and soluble-carbon
contents, and higher electrical conductivity. The results suggest that
compost quality in the tropics was affected by weather conditions during
composting (e.g. high temperature and rainfall), which induced high
losses of carbon and nutrients. For most properties, industrial, sewage
sludge and manure-based composts displayed the highest quality under
both climates, while the contrary was found for household and municipal
solid waste-based composts. The publication effect represented >50%
of total variance, which was mainly due to the heterogeneity of the
composting procedures. The meta-analysis was found to be a helpful tool
to analyse the imbalanced worldwide database on compost quality.
Copyright © 2016 Elsevier Ltd. All rights reserved.
KEYWORDS:
Compost quality; Composting procedure; Imbalanced database; Meta-analysis; Organic waste
