Publications by authors named "Alain Rocheteau"
Transient thermal dissipation (TTD) systems provide a simple way to measure xylem sap flow with dual or single Granier-type probe, which gives lower energy consumption and higher accuracy due to its lessor sensitivity to thermal interferences. A new system, TTD heat within 5 min (TTD5), proposed on the reduction of the heating duration. This evolution captured interest through decreased energy consumption and increased temporal resolution.
View Article and Find Full Text PDFGrowth duration is a better predictor of stem increment than carbon supply in a Mediterranean oak forest: implications for assessing forest productivity under climate change.
New Phytol
August 2015
Article Synopsis
- Understanding tree growth limitations is essential for forecasting how climate change affects forest productivity, focusing on whether growth is restricted by carbon availability or environmental factors like water and temperature.
- The study analyzed tree basal area variations, carbon fluxes, water potential, and temperature over 8 years, revealing that during cold and dry conditions, while carbon productivity was positive, stem growth was nonexistent, indicating growth was hindered by environmental stress rather than carbon sources.
- The research found that annual tree growth was linked to the length of the growth period in spring, influenced by winter temperatures and summer drought thresholds, suggesting that incorporating these environmental factors into vegetation models could improve predictions of forest productivity in the face of climate change.
Effects of soil and atmospheric drought on whole-tree transpiration (E(T)), leaf water potential (Ψ(L)) and whole-tree hydraulic conductance (K(T)) were investigated in mature rubber trees (Hevea brasiliensis, clone RRIM 600) during the full canopy stage in the rainy season in a drought-prone area of northeast Thailand. Under well-watered soil conditions, transpiration was tightly regulated in response to high evaporative demand, i.e.
View Article and Find Full Text PDFWater use by mature trees of Acacia tortilis (Forsk.) Hayne ssp. raddiana (Savi) Brenan var.
View Article and Find Full Text PDF