Rubber, rubber and rubber: How 75 years of successive rubber plantations rotations affect topsoil quality?

Panklang Phantip, Thoumazeau Alexis, Chiarawipa Rawee, Sdoodee Sayan, Sebag David, Gay Frédéric, Thaler Philippe, Brauman Alain. 2022. Rubber, rubber and rubber: How 75 years of successive rubber plantations rotations affect topsoil quality?. Land Degradation and Development, 33 (8) : 1159-1169.

Quartile : Q2, Sujet : ENVIRONMENTAL SCIENCES / Quartile : Q2, Sujet : SOIL SCIENCE

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Géographie-Aménagement-Urbanisme-Architecture

Résumé : Rubber tree plantations (Hevea brasiliensis) cover large areas in the tropics. In historical producing regions like South Thailand, rubber has been planted by smallholders for three successive rotations lasting a total of 75 years. Despite possible consequences on topsoil, the long-term impacts of repeated rubber plantations on soil quality remain unknown. This study aims to better understand how various factors linked to long-term rubber land use and land use change affect topsoil physico-chemical properties and soil organic carbon (SOC) thermal stability. We focus on the effects of three factors: i. deforestation (change from forest to first rubber plantation); ii. the age of the rubber stand (immature vs mature); and iii. Long-term rubber cultivation (first, second or third successive rotation) over a chronosequence in farmers plots. Our results show that soil was deeply degraded after deforestation to a rubber plantation. Long-term rubber cultivation is also detrimental for the soil and has a more negative impact on soil physico-chemical properties and carbon dynamics, than the age of the rubber stand (e.g. on average, decrease of 50% of SOC content between forest and third rotation). At the third rotation, after 50 years of rubber cultivation, the quality of the 0–10 cm soil layer was very low, with an increase in SOC thermal stability. At this stage, logging practices upset the sustainability of the system. These impacts could be limited by less destructive practices during planting.

Mots-clés Agrovoc : Hevea brasiliensis, rotation culturale, qualité du sol, couche arable

Mots-clés libres : Rubber plantations, Successive rotation, Long term, Soil Quality

Classification Agris : P35 - Fertilité du sol
F08 - Systèmes et modes de culture
P34 - Biologie du sol

Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques

Auteurs et affiliations

• Panklang Phantip, Prince of Songkla University (THA) - auteur correspondant
• Thoumazeau Alexis, CIRAD-PERSYST-UMR ABSys (THA) ORCID: 0000-0003-0758-139X - auteur correspondant
• Chiarawipa Rawee, Prince of Songkla University (THA) - auteur correspondant
• Sdoodee Sayan, Prince of Songkla University (THA)
• Sebag David, UNIL (CHE)
• Gay Frédéric, CIRAD-PERSYST-UMR ABSys (FRA) ORCID: 0000-0002-7624-8489
• Thaler Philippe, CIRAD-PERSYST-UMR Eco&Sols (FRA) ORCID: 0000-0002-9924-4309
• Brauman Alain, IRD (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/600660/)

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