The Mekong sub-region faces an exceptional expansion of rubber tree plantations, which represent ... more The Mekong sub-region faces an exceptional expansion of rubber tree plantations, which represent a potential problem in terms of soil sustainability. However, in comparison with intensive annual cropping, rubber tree plantation could also have a positive impact on soil functioning but data concerning its influence on soil environment remains scarce. To address this question, we investigated the impact of rubber tree plantations on soil organic carbon (SOC) and soil biological diversity (soil fauna and microorganisms) related to main soil functions such as OM mineralization and nutrient cycling. All the biologic and physical-chemical parameters were measured from the same sampling set along a rubber tree chronosequence in the eastern province of Thailand, and compared to the former crop cultivated (cassava). Compared to cassava field, most of the variables measured (SOC, soil respiration, microbial activities and density, fauna density and diversity) showed significantly higher level...
Tree plantations are often denigrated for their negative impact on natural resources particularly... more Tree plantations are often denigrated for their negative impact on natural resources particularly loss of biodiversity. This assessment is undeniable when tree plantation encroached natural forests. However, in the case of Rubber plantation, the main tree plantation in south East Asia, it often replaced intensively managed annual crops such as cassava. The impact of these land use changes on soil biodiversity remains unknown. To address this issue, we investigated the impact of land use change from cassava to rubber trees on soil biological diversity (soil fauna, and soil microorganisms, using pyrosequencing approaches), biological activities (soil respiration and metabolic profiles) and soil organic carbon (SOC) content and quality. All these parameters were measured along a chronosequence of rubber plantations in Thailand from 1 to 25 years old compared to cassava fields, the most cultivated cash crop in the area. Compared to cassava fields, activities and biomass of soil fauna an...
Dataset describing sheeting properties made by termites (names, and feeding and building categori... more Dataset describing sheeting properties made by termites (names, and feeding and building categories are given) sampled in 34 study sites, including M-Tropics observatories, from 19 countries. Data coming from 15 published studies are also given, for a total of 49 sites and 21 countries. The dataset include the locations (site names, countries, GPS coordinates, mean annual precipitations 'MAP') and soil properties (electrical conductivity in µS cm-1, pH, C content in %, soil aggregate stability (in % aggregates > 200 µm) and sand, silt and clay contents in %) of termite sheetings and the surrounding topsoil. The Response ratio (R = Value of termite sheeting / Value oft he bulk soil) is also given for each variable. Files include the whole dataset (n = 249 observations) and the average per species and study site (n = 84 observations).
The Mekong sub-region faces an exceptional expansion of rubber tree plantations, which represent ... more The Mekong sub-region faces an exceptional expansion of rubber tree plantations, which represent a potential problem in terms of soil sustainability. However, in comparison with intensive annual cropping, rubber tree plantation could also have a positive impact on soil functioning but data concerning its influence on soil environment remains scarce. To address this question, we investigated the impact of rubber tree plantations on soil organic carbon (SOC) and soil biological diversity (soil fauna and microorganisms) related to main soil functions such as OM mineralization and nutrient cycling. All the biologic and physical-chemical parameters were measured from the same sampling set along a rubber tree chronosequence in the eastern province of Thailand, and compared to the former crop cultivated (cassava). Compared to cassava field, most of the variables measured (SOC, soil respiration, microbial activities and density, fauna density and diversity) showed significantly higher level...
Tree plantations are often denigrated for their negative impact on natural resources particularly... more Tree plantations are often denigrated for their negative impact on natural resources particularly loss of biodiversity. This assessment is undeniable when tree plantation encroached natural forests. However, in the case of Rubber plantation, the main tree plantation in south East Asia, it often replaced intensively managed annual crops such as cassava. The impact of these land use changes on soil biodiversity remains unknown. To address this issue, we investigated the impact of land use change from cassava to rubber trees on soil biological diversity (soil fauna, and soil microorganisms, using pyrosequencing approaches), biological activities (soil respiration and metabolic profiles) and soil organic carbon (SOC) content and quality. All these parameters were measured along a chronosequence of rubber plantations in Thailand from 1 to 25 years old compared to cassava fields, the most cultivated cash crop in the area. Compared to cassava fields, activities and biomass of soil fauna an...
Dataset describing sheeting properties made by termites (names, and feeding and building categori... more Dataset describing sheeting properties made by termites (names, and feeding and building categories are given) sampled in 34 study sites, including M-Tropics observatories, from 19 countries. Data coming from 15 published studies are also given, for a total of 49 sites and 21 countries. The dataset include the locations (site names, countries, GPS coordinates, mean annual precipitations 'MAP') and soil properties (electrical conductivity in µS cm-1, pH, C content in %, soil aggregate stability (in % aggregates > 200 µm) and sand, silt and clay contents in %) of termite sheetings and the surrounding topsoil. The Response ratio (R = Value of termite sheeting / Value oft he bulk soil) is also given for each variable. Files include the whole dataset (n = 249 observations) and the average per species and study site (n = 84 observations).
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