NDLI: Effect of organic amendment on soil fertility and plant nutrients in a post-fire Mediterranean ecosystem

Content Provider	Springer Nature Link
Author	Cellier, Antoine Gauquelin, Thierry Baldy, Virginie Ballini, Christine
Copyright Year	2013
Abstract	In Mediterranean frequently burnt areas, the decrease of soil fertility leads to regressive vegetation dynamics. Organic amendments could help to accelerate post-fire ecosystem resilience, by improving soil properties and plant nutrition. This study was conducted to assess the potential of a composted biosolid to restore an early post-fire shrubland.About 50 Mg.ha$^{−1}$ of fresh co-composted sewage sludge and green wastes were surface applied 7 months after fire on a silty-clayey soil. We monitored over a 2-year period organic matter and nutrient transfers to soil, nutrient responses of dominant plant species, and ecosystem contamination by potentially toxic trace elements.Over the experimental survey, compost rapidly and durably improved soil P$_{2}$O$_{5}$, MgO and K$_{2}$O content, and temporarily increased N-(NO$_{3}$ $^{−}$ + NO$_{2}$ $^{−}$) content. Plant nutrition was improved more or less durably depending species. The most positive compost effect was on plant and soil phosphorus content. Plant nutrient storage was not improved 2 years after amendment, suggesting luxury consumption. No contamination by trace elements was detected in soil and plant.The use of compost after fire could help for rapidly restoring soil fertility and improving plant nutrition. The increase of soil nutrient pools after amendment emphazised the diversity of plant nutritional traits. Eutrophication risk could occur from high compost and soil P$_{2}$O$_{5}$ content.
Starting Page	211
Ending Page	228
Page Count	18
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	376
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer International Publishing
Publisher Date	2013-11-24
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Burnt ecosystem Phosphorus Plant nutrition Sewage sludge compost Plant Sciences Soil Science & Conservation Plant Physiology Ecology
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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