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Pierret, AlainRouw, Anneke deChaplot, V.Valentin, ChristianNoble, A.D.Suhardiman, DianaDrechsel, Pay[Reshaping upland farming policies to support nature and livelihoods: lessons from soil erosion in Southeast Asia with emphasis on Lao PDR. [Report of the Management of Soil Erosion Consortium (MSEC) Project].]Reshaping upland farming policies to support nature and livelihoods: lessons from soil erosion in Southeast Asia with emphasis on Lao PDR. [Report of the Management of Soil Erosion Consortium (MSEC) Project].

This paper presents the results of a pilot project aimed at unravelling putative links between the occurrence of Trunk Phloem Necrosis (TPN) and impeded root system development in a small rubber tree (RRIM 600) plantation of NE Thailand. To investigate as many root parameters as possible, our met...


Pierret, AlainDoussan, C.Pages, L.Do, F. C.Gonkhamdee, S.Maeght, J.L.Chintachao, W.Nandris, D.[Is impeded root growth related to the occurrence of rubber tree Trunk Phloem Necrosis (TPN)?: preliminary results from NE Thailand]Is impeded root growth related to the occurrence of rubber tree Trunk Phloem Necrosis (TPN)?: preliminary results from NE Thailand

To measure the elongation rate of individual roots in soil remains a challenge. A novel method for estimating elongation rates of excavated roots is presented. Morphological markers are identified along the tip of excavated roots, and their distance relative to the apex is measured. These markers...


Pages, L.Serra, V.Draye, XavierDoussan, C.Pierret, Alain[Estimating root elongation rates from morphological measurements of the root tip]Estimating root elongation rates from morphological measurements of the root tip
Lacombe, GuillaumeHoanh, Chu ThaiPierret, AlainSengtaheuanghoung, OlothSmakhtin, Vladimir U.Noble, A.D.[Climate change versus land-cover change: a comparative analysis in the Mekong Basin]Climate change versus land-cover change: a comparative analysis in the Mekong Basin

The humid tropics are exposed to an unprecedented modernization of agriculture involving rapid and highly-mixed land-use changes with contrasted environmental impacts. Afforestation is often mentioned as an unambiguous solution for restoring ecosystem services and enhancing biodiversity. One cons...


Lacombe, GuillaumeRibolzi, OlivierRouw, Anneke dePierret, AlainLatsachak, K.Silvera, N.Pham Dinh, R.Orange, D.Janeau, Jean L.Soulileuth, B.Robain, H.Taccoen, A.Sengphaathith, P.Mouche, E.Sengtaheuanghoung, OlothTran Duc, T.Valentin, Christian[Afforestation by natural regeneration or by tree planting: examples of opposite hydrological impacts evidenced by long-term field monitoring in the humid tropics]Afforestation by natural regeneration or by tree planting: examples of opposite hydrological impacts evidenced by long-term field monitoring in the humid tropics
Vigiak, OlgaRibolzi, OlivierPierret, AlainSengtaheuanghoung, OlothChaplot, VincentValentin, Christian[Estimation of runoff curve number (CN) of some Laotian land use types]Estimation of runoff curve number (CN) of some Laotian land use types

In this paper we discuss the main results of a feasibility study for the implementation of Payments for Environmental Services (PES) in a small watershed of northern Laos. The aim of the work was to assess the relevance of such a scheme as a way to control both the quality and flow of a small mou...


Mousques, C.Sengsoulychanh, P.Sengtaheuanghoung, OlothLatchackack, K.Ribolzi, OlivierPierret, Alain[Relevance of Payments for Environmental Services (PES) for watershed management in northern Laos]Relevance of Payments for Environmental Services (PES) for watershed management in northern Laos

Improving access to clean water has the potential to make a major contribution toward poverty reduction in rural communities of Lao P.D.R. This study focuses on stream water quality along a Mekong basin tributary, the Houay Xon that flows within a mountainous, mosaic land-use catchment of norther...


Ribolzi, OlivierCuny, JulietteSengsoulichanh, PhonexayMousques, ClaireSoulileuth, BounsamaiPierret, AlainHuon, S.Sengtaheuanghoung, Oloth[Land use and water quality along a Mekong tributary in northern Lao P.D.R.]Land use and water quality along a Mekong tributary in northern Lao P.D.R.
Pierret, Alain[Multi-spectral imaging of rhizobox systems: new perspectives for the observation and discrimination of rhizosphere components]Multi-spectral imaging of rhizobox systems: new perspectives for the observation and discrimination of rhizosphere components

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