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Journal Article 2009-08-30

Autor: Hiernaux, Pierre H.Y. Mougin, E. Diarra, L. Soumaguel, N. Lavenu, F. Tracol, Y. Diawara, M.

Twenty-five rangeland sites were monitored over two decades (1984–2006) first to assess the impact of the 1983–1984 droughts on fodder resources, then to better understand ecosystem functioning and dynamics. Sites are sampled along the south–north bioclimatic gradient in Gourma (Mali), within thr...

Enlace original: https://cgspace.cgiar.org/handle/10568/1955

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Mougin, E. ,  Diarra, L. ,  Soumaguel, N. ,  Lavenu, F. ,  Tracol, Y. ,  Diawara, M. ,  [Sahelian rangeland response to changes in rainfall over two decades in the Gourma region, Mali] ,  Sahelian rangeland response to changes in rainfall over two decades in the Gourma region, Mali
Journal Article 2003

Autor: Jarlan, L. Mazzega, P. Mougin, E. Lavenu, F. Marty, G. Frison, P.L. Hiernaux, Pierre H.Y.

The West African Sahel rainfall regime is known for its spatio-temporal variability at different scales which has a strong impact on vegetation development. This study presents results of the combined use of a simple water balance model, a radiative transfer model and ERS scatterometer data to ...

Enlace original: https://cgspace.cgiar.org/handle/10568/33134

Investigación en Agricultura
Enlace permanente
Jarlan, L. ,  Mazzega, P. ,  Mougin, E. ,  Lavenu, F. ,  Marty, G. ,  Frison, P.L. ,  Hiernaux, Pierre H.Y. ,  [Mapping of Sahelian vegetation parameters from ERS scatterometer data with an evolution strategies algorithm] ,  Mapping of Sahelian vegetation parameters from ERS scatterometer data with an evolution strategies algorithm
Journal Article 2000

Autor: Frison, P.L. Mougin, E. Jarlan, L. Karam, M.A. Hiernaux, Pierre H.Y.

ERS wind scatterometer (WSC) and SSNI/I data are compared for monitoring the seasonal variation of herbaceous vegetation over a sahelian region. Temporal evolution of polarization difference brightness temperatures derived from SSM/I data and WSC backscattering coefficient acquired at 45° of inci...

Enlace original: https://cgspace.cgiar.org/handle/10568/28681

Investigación en Agricultura
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Frison, P.L. ,  Mougin, E. ,  Jarlan, L. ,  Karam, M.A. ,  Hiernaux, Pierre H.Y. ,  [Comparison of ERS wind-scatterometer and SSM/I data for Sahelian vegetation monitoring] ,  Comparison of ERS wind-scatterometer and SSM/I data for Sahelian vegetation monitoring
Journal Article 1996

Autor: Hiernaux, Pierre H.Y. Turner, M.D.

1. growth and nutrient-uptake responses of annual rangeland to defoliation were studied at 13 sandy range sites located across the Sahelian zone of mali between 1977 and 1989. 34 clipping experiments (site-years) were conducted using identical treatment designs with respect to the timing and freq...

Enlace original: https://cgspace.cgiar.org/handle/10568/28870

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Turner, M.D. ,  [The effect of clipping on growth and nutrient uptake of Sahelian annual rangelands] ,  The effect of clipping on growth and nutrient uptake of Sahelian annual rangelands
Conference Paper 1995

Autor: Hiernaux, Pierre H.Y. Leeuw, P.N. de Diarra, L.

In the Sahelian rangelands biomass production is constrained by soil moisture in the drier (100-250 mm) parts and by soil nutrients in the wetter parts. Similarly, for a given Sahelian range, nutrient deficiency would be more prominent in good than in poor rainfall years. To test this hypothesis,...

Enlace original: https://cgspace.cgiar.org/handle/10568/2778

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Leeuw, P.N. de ,  Diarra, L. ,  [The interactive effects of rainfall, nutrient supply and defoliation on the herbage yields of Sahelian rangelands in north-east Mali] ,  The interactive effects of rainfall, nutrient supply and defoliation on the herbage yields of Sahelian rangelands in north-east Mali

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