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Journal Article 1995

Autor: Seen, D. lo Mougin, E. Rambal, S. Gaston, A. Hiernaux, Pierre H.Y.

An approach for combining remote sensing spectral measurements with an ecosystem model was presented in an accompanying article. The sahelian grassland ecosystem STEP model developed for that purpose was also described and validated. In order to fulfill a prerequisite for using coarse resolution ...

Enlace original: https://cgspace.cgiar.org/handle/10568/29554

Investigación en Agricultura
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Seen, D. lo ,  Mougin, E. ,  Rambal, S. ,  Gaston, A. ,  Hiernaux, Pierre H.Y. ,  [A regional sahelian grassland model to be coupled with multispectral satellite data. II. Toward the control of its simulations by remotely sensed indices] ,  A regional sahelian grassland model to be coupled with multispectral satellite data. II. Toward the control of its simulations by remotely sensed indices
Journal Article 1995

Autor: Mougin, E. Seen, D. lo Rumbal, S. Gaston, A. Hiernaux, Pierre H.Y.

An approach to combining remote sensing spectral measurements with an ecosystem process model is presented. In this approach, the ecosystem model is not bound by the sole use of satellite data, but integrates the latter in an explicit formulation of the main processes of vegetation functioning. A...

Enlace original: https://cgspace.cgiar.org/handle/10568/29553

Investigación en Agricultura
Enlace permanente
Mougin, E. ,  Seen, D. lo ,  Rumbal, S. ,  Gaston, A. ,  Hiernaux, Pierre H.Y. ,  [A regional sahelian grassland model to be coupled with multispectral satellite data. I. Model description and validation] ,  A regional sahelian grassland model to be coupled with multispectral satellite data. I. Model description and validation
Conference Paper 1996

Autor: Powell, J.M. Fernández Rivera, S. Hiernaux, Pierre H.Y. Turner, M.

The sustainability of nutrient transfers in integrated rangeland/cropland systems of the Sahel was examined in relation to the impact of livestock. Rangeland nutrient balances are considered in equilibrium whereas croplands lack the internal capacity to replenish nutrient off takes in grain and c...

Enlace original: https://cgspace.cgiar.org/handle/10568/50882

Investigación en Agricultura
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Powell, J.M. ,  Fernández Rivera, S. ,  Hiernaux, Pierre H.Y. ,  Turner, M. ,  [Nutrient cycling in integrated rangeland/cropland systems of the Sahel] ,  Nutrient cycling in integrated rangeland/cropland systems of the Sahel
Journal Article 1986

Autor: Justice, C.O. Hiernaux, Pierre H.Y.

Compares normalized difference vegetation index data derived from the advanced very high resolution radiometer on board the NOAA-7 satellite for the 1983 growing season for the saheliant zone of Niger wit biomass estimates derived from an emperical grassland productivity model.

Enlace original: https://cgspace.cgiar.org/handle/10568/28804

Investigación en Agricultura
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Justice, C.O. ,  Hiernaux, Pierre H.Y. ,  [Monitoring the grasslands of the Sahel using NOAA AVHRR data: Niger 1983] ,  Monitoring the grasslands of the Sahel using NOAA AVHRR data: Niger 1983
Conference Paper 1996

Autor: Hiernaux, Pierre H.Y.

In studies of 25 rangeland sites selected along the S.-N. bioclimatic gradient and on the main soil types in the Gourma (Sahel, Mali), herbage cover, standing mass and botanical composition were measured in relation to seasonality of grazing and grazing intensity. When different sites were compar...

Enlace original: https://cgspace.cgiar.org/handle/10568/51083

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  [Spatial heterogeneity in Sahelian rangelands and resilience to drought and grazing] ,  Spatial heterogeneity in Sahelian rangelands and resilience to drought and grazing
Conference Paper 1999

Autor: Hiernaux, Pierre H.Y. Fernández Rivera, S.

Short-duration rotation grazing was compared with deferred grazing in a 3-year experiment at ICRISAT, Niger. Short-duration grazing used a mixed herd (2 steers, 4 sheep and 4 goats) and cycles of 15-21 days in the wet season and 91 days in the dry season. Wet season grazing compared high (83-126 ...

Enlace original: https://cgspace.cgiar.org/handle/10568/50621

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Fernández Rivera, S. ,  [Grazing rotation in the annual-dominated rangelands of the Sahel] ,  Grazing rotation in the annual-dominated rangelands of the Sahel
Conference Paper 1996

Autor: Hiernaux, Pierre H.Y. Fernández Rivera, S.

In the short term, grazing of a 40-ha fallow in the Sahel, Niger, by sheep and goats reduced the standing herbage mass in the wet season and increased its disappearance during the dry season. The effects of stocking rate (62.5 or 125 k g liveweight/ha) and the proportion of sheep in the mixture (...

Enlace original: https://cgspace.cgiar.org/handle/10568/50619

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Fernández Rivera, S. ,  [Grazing effects of goat-sheep mixes on vegetation structure and productivity of old fallow in the Sahel] ,  Grazing effects of goat-sheep mixes on vegetation structure and productivity of old fallow in the Sahel
Conference Paper 1986

Autor: Hiernaux, Pierre H.Y. Diarra, L.
Enlace original: https://cgspace.cgiar.org/handle/10568/50760

Investigación en Agricultura
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Hiernaux, Pierre H.Y. ,  Diarra, L. ,  [Is it possible to improve the traditional grazing management in the flood plain of the Niger river in central Mali?] ,  Is it possible to improve the traditional grazing management in the flood plain of the Niger river in central Mali?

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