Termite mounds in Cambodian paddy fields. Are they always kept for improving soil quality? - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Termite mounds in Cambodian paddy fields. Are they always kept for improving soil quality?

Ratha Muon
Chenda Lai
  • Fonction : Auteur
Ève Bureau-Point
François Chassagne
  • Fonction : Auteur
Frank Wieringa
  • Fonction : Auteur
Jacques Berger
  • Fonction : Auteur
Kimchhin Sok
  • Fonction : Auteur
Martine Audibert
  • Fonction : Auteur
Pascal Podwojewski
  • Fonction : Auteur
Sebastien Marchand
  • Fonction : Auteur
Vannak Ann
  • Fonction : Auteur
Pascal Jouquet
  • Fonction : Auteur

Résumé

The utilization of termite mounds for the improvement of soil fertility is a worldwide practice and usually explained by the specific properties of this biogenic material. In Cambodia, farmers also use termite mound soils as amendments with the aim to improve the fertility of paddy fields. The first objective of this study was, therefore, to describe the physical and chemical properties of this material and, consequently, to determine its potential for improving soil fertility. A second objective was to consider farmer’s perception and to quantify the diversity of services provided by termite mounds. We confirmed the specific soil properties of termite mounds but showed that their positive influence on soil chemical fertility and water retention are only significant in very sandy soil (-40-80% sand) while they remain limited in less sandy soil (~40 and 60% of sand). However, termite mounds are considered useful by farmers independently of the soil condition, mostly because this soil material is considered to positively increase soil fertility but also because they host a specific biodiversity which can be used for medicinal purposes or because consumed, then increasing population livelihood. Our work shows the discrepancy between the perception of farmers and the real impact of termite mounds on soil fertility as well as the diversity of services delivered by biodiversity in paddy fields.
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Dates et versions

hal-03868688 , version 1 (23-11-2022)

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Citer

Ratha Muon, Chenda Lai, Ève Bureau-Point, François Chassagne, Frank Wieringa, et al.. Termite mounds in Cambodian paddy fields. Are they always kept for improving soil quality?. EGU General Assembly 2022, May 2022, Vienna, Austria. ⟨10.5194/egusphere-egu22-55⟩. ⟨hal-03868688⟩
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