6 results on '"Dinh Rinh Pham"'
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2. Trace Metal Contamination During Grinding of Plant Samples
- Author
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Bich, Luong Bui, primary, My, Hanh Phung Thi, additional, Dinh, Rinh Pham, additional, Minh, Trang Pham, additional, Trong, Thang Do, additional, Harper, Stephen, additional, Wuhrer, Richard, additional, Huang, Qingtao, additional, George, Laurel, additional, Holford, Paul, additional, Zhao, Chen Chen, additional, Mitchell, Christopher, additional, and Milham, Paul, additional
- Published
- 2018
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3. Effect of land use and hydrological processes on Escherichia coli concentrations in streams of tropical, humid headwater catchments
- Author
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Rochelle-Newall, Emma J., primary, Ribolzi, Olivier, additional, Viguier, Marion, additional, Thammahacksa, Chanthamousone, additional, Silvera, Norbert, additional, Latsachack, Keooudone, additional, Dinh, Rinh Pham, additional, Naporn, Piyapong, additional, Sy, Hai Tran, additional, Soulileuth, Bounsamay, additional, Hmaimum, Nikom, additional, Sisouvanh, Pem, additional, Robain, Henri, additional, Janeau, Jean-Louis, additional, Valentin, Christian, additional, Boithias, Laurie, additional, and Pierret, Alain, additional
- Published
- 2016
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4. Soil erosion, dissolved organic carbon and nutrient losses under different land use systems in a small catchment in northern Vietnam
- Author
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Hai Tran Sy, Thi Phuong Quynh Le, Pascal Jouquet, Dinh Rinh Pham, Quoc Anh Ngo, Séraphine Grellier, Thi Nguyet Minh Luu, Lc Gillard, Emma Rochelle Newall, Trinh Anh Duc, Christian Valentin, Jean-Louis Janeau, Duc Toan Tran, Didier Orange, Biogéochimie et écologie des milieux continentaux (Bioemco), Centre National de la Recherche Scientifique (CNRS)-AgroParisTech-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Recherche Agronomique (INRA)-École normale supérieure - Paris (ENS Paris), WEO Department, University of sciences and technologies of hanoi (USTH), Université Pierre et Marie Curie - Paris 6 (UPMC), Vietnam Academy of Science and Technology (VAST), A18-Institute of Chemistry, Vietnamese Academy of Science and Technology, Ecologie des systèmes marins côtiers (Ecosym), Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS), Soils and Fertilizers Research Institute (SFRI), Vietnam Academy of Agricultural Sciences (VAAS), Veolia Environnement Recherche et Innovation, Veolia, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Institut d'écologie et des sciences de l'environnement de Paris (iEES Paris), Institut National de la Recherche Agronomique (INRA)-Sorbonne Université (SU)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Biomécanique et Mécanique des Chocs (LBMC UMR T9406), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Institut d'écologie et des sciences de l'environnement de Paris (iEES), Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), UR 103 Camélia, Institut de Recherche pour le Développement (IRD), French Institut de Recherche pour le Developpement (IRD), UMR BIOEMCO, project PAMPA, PHC Hoa Sen Lotus [23970QM], LOTUS [44/2012/HD-NDT], MOST, Vietnam, Institut d'écologie et des sciences de l'environnement de Paris (IEES (UMR_7618 / UMR_D_242 / UMR_A_1392 / UM_113) ), Institut d'écologie et des sciences de l'environnement de Paris (IEES), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Recherche Agronomique (INRA), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), and University of Science and Technology of Hanoi (USTH)
- Subjects
FORET ,010504 meteorology & atmospheric sciences ,SOL CULTIVE ,01 natural sciences ,Agricultural land ,Dissolved organic carbon ,PERTE EN TERRE ,Tropical catchments ,DEGRADATION DU SOL ,MATIERE ORGANIQUE DISSOUTE ,ComputingMilieux_MISCELLANEOUS ,Water Science and Technology ,2. Zero hunger ,Agroforestry ,Aquatic ecosystem ,04 agricultural and veterinary sciences ,No-till ,Plant litter ,CARBONE ,PRATIQUE CULTURALE ,BASSIN VERSANT ,Erosion ,[SDE]Environmental Sciences ,PENTE ,SIMULATION DE PLUIE ,COUVERT VEGETAL ,Soil Science ,TRAVAIL DU SOL ,No-till farming ,ALTITUDE ,AZOTE ,ETUDE COMPARATIVE ,Ecosystem ,Soil carbon loss ,14. Life underwater ,0105 earth and related environmental sciences ,Earth-Surface Processes ,Rain simulations ,PHOSPHORE ,Soil carbon ,15. Life on land ,NUTRIMENT ,JACHERE ,Agronomy ,MULCH ,Acacia mangium ,[SHS.ENVIR]Humanities and Social Sciences/Environmental studies ,Soil water ,040103 agronomy & agriculture ,0401 agriculture, forestry, and fisheries ,Environmental science ,EROSION HYDRIQUE ,Agronomy and Crop Science ,ZONE DE MONTAGNE - Abstract
International audience; The export of dissolved organic carbon (DOC) from agricultural soils can represent an important pathway of soil organic carbon loss. However, despite its importance in terrestrial and downstream aquatic ecosystems, most work has focused on temperate agrosystems with tropical and sub-tropical ecosystems being ignored. Here we present the results of a series of rain simulation experiments aimed at examining DOC export from sloping lands in North Vietnam. Three regularly used agricultural practices were tested and compared with Bare soils. We also compared the impact of leaf litter in two planted forest sites. We found high rates of DOC export (0.03-0.25 g C m(-2)) during a 40 min rain episode with the lowest rates observed in the Bare soils and the highest in the planted Forest without leaf litter. This is equivalent to a loss of between 0.001 and 0.008% of the total soil organic carbon in the upper 10 cm during a single, intense rain event. This work highlights the impact of different agricultural practices (Bare soil, hoeing, mulching and fallow) and land use (planted Forest with or without leaf litter) on the export of DOC from upland, tropical soils and further underlines the importance of studying DOC fluxes from agricultural land as it represents an important and highly mobile component of ecosystem carbon fluxes.
- Published
- 2014
- Full Text
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5. Trace Metal Contamination During Grinding of Plant Samples.
- Author
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Bich, Luong Bui, My, Hanh Phung Thi, Dinh, Rinh Pham, Minh, Trang Pham, Trong, Thang Do, Harper, Stephen, Wuhrer, Richard, Huang, Qingtao, George, Laurel, Holford, Paul, Zhao, Chen Chen, Mitchell, Christopher, and Milham, Paul
- Subjects
METAL content of soils ,PLANT chemical analysis ,CHROMIUM ,NICKEL ,PLANT cells & tissues - Abstract
Inductively coupled plasma-mass spectroscopic (ICP-MS) analysis of leaves from 22 cabbage crops in the Sa Pả and Bắc Hà districts of Láo Cai Province, North-Western Việt Nam, revealed unexpectedly high concentrations of chromium (Cr) and nickel (Ni). The concentrations were strongly linearly related (r
2 = 0.94), indicating sample contamination during grinding through a stainless-steel hammer mill. We tested this hypothesis in two ways. First, brown rice ground through the same mill was contaminated not only by Cr and Ni, but also cobalt (Co), iron (Fe) and molybdenum (Mo). Second, scanning electron microscopy/energy dispersive analysis of x-rays (SEM/EDS) of the ground samples revealed small fragments with co-located Fe, Cr and Ni, consistent with stainless steel wear fragments. Other grinders may perform differently and we suggest that quality assurance protocols for trace metal analysis of plants should include testing for grinder wear metals. Lastly, brown rice appears to be convenient for investigating contamination of plant tissues during grinding. [ABSTRACT FROM AUTHOR]- Published
- 2019
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6. Contradictory hydrological impacts of afforestation in the humid tropics evidenced by long-term field monitoring and simulation modelling.
- Author
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Lacombe, Guillaume, Ribolzi, Olivier, de Rouw, Anneke, Pierret, Alain, Latsachak, Keoudone, Silvera, Norbert, Dinh, Rinh Pham, Orange, Didier, Janeau, Jean-Louis, Soulileuth, Bounsamai, Robain, Henri, Taccoen, Adrien, Sengphaathith, Phouthamaly, Mouche, Emmanuel, Sengtaheuanghoung, Oloth, Duc, Toan Tran, and Valentin, Christian
- Subjects
AFFORESTATION ,LAND use ,ENVIRONMENTAL impact analysis ,RESTORATION ecology ,BIODIVERSITY - Abstract
The humid tropics are exposed to an unprecedented modernisation of agriculture involving rapid and mixed land-use changes with contrasted environmental impacts. Afforestation is often mentioned as an unambiguous solution for restoring ecosystem services and enhancing biodiversity. One consequence of afforestation is the alteration of streamflow variability which controls habitats, water resources, and flood risks. We demonstrate that afforestation by tree planting or by natural forest regeneration can induce opposite hydrological changes. An observatory including long-term field measurements of fine-scale land-use mosaics and of hydrometeorological variables has been operating in several headwater catchments in tropical southeast Asia since 2000. The GR2M water balance model, repeatedly calibrated over successive 1-year periods and used in simulation mode with the same year of rainfall input, allowed the hydrological effect of land-use change to be isolated from that of rainfall variability in two of these catchments in Laos and Vietnam. Visual inspection of hydrographs, correlation analyses, and trend detection tests allowed causality between land-use changes and changes in seasonal streamflow to be ascertained. In Laos, the combination of shifting cultivation system (alternation of rice and fallow) and the gradual increase of teak tree plantations replacing fallow led to intricate streamflow patterns: pluri-annual streamflow cycles induced by the shifting system, on top of a gradual streamflow increase over years caused by the spread of the plantations. In Vietnam, the abandonment of continuously cropped areas combined with patches of mix-trees plantations led to the natural re-growth of forest communities followed by a gradual drop in streamflow. Soil infiltrability controlled by surface crusting is the predominant process explaining why two modes of afforestation (natural regeneration vs. planting) led to opposite changes in streamflow regime. Given that commercial tree plantations will continue to expand in the humid tropics, careful consideration is needed before attributing to them positive effects on water and soil conservation. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
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