G. Gintzburger

Centre Val de Loire

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M. Bounejmate

International Center for Agricultural Research in the Dry Areas

A. Nefzaoui

International Center for Agricultural Research in the Dry Areas

Thomas L. Nordblom

Charles Sturt University

Slim Saïdi

University of Sharjah

S. Christiansen

Nestlé (Switzerland)

H.N. le Houérou

Centre National pour la Recherche Scientifique et Technique (CNRST)

A. E. Osman

Assiut University

F. Shomo

International Center for Agricultural Research in the Dry Areas

H. Ben Salem

Institut National de la Recherche Agronomique de Tunisie

A. V. Goodchild

Animal and Plant Health Agency

Cooperative Institutions

International Center for Agricultural Research in the Dry Areas

Centre de Coopération Internationale en Recherche Agronomique pour le Développement

Centre National de la Recherche Scientifique

Institut National de la Recherche Agronomique

Agropolis International

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement

Kyoto University

University of Western Australia

Office of Livestock and Pasture

Université de Montpellier

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Measurement of above‐ground plant biomass, forage availability and grazing impact by combining satellite image processing and field survey in a dry area of north‐eastern Syria

Grass and Forage Science (2005)

Masahiro Hirata Nobuyuki Koga Hitoshi Shinjo Haruhiro Fujita G. Gintzburger

Abstract Field survey and satellite image processing methods were used to estimate the total available forage over an area of 95 034 ha in north‐eastern Syria, and to assess grazing impact on the area. The above‐ground plant biomass was measured by a quadrat method at three sites in each of eight vegetation classes. Available forage was measured by excluding woody parts of shrubs from the whole aerial plant parts. The total above‐ground plant biomass and available forage were estimated by extrapolating the measured point data to the whole target area using classified vegetation data by satellite image processing. Grazing impact was assessed by calculating the differences between the total available forage at the end of growing season and the end of dry season. The values for the estimated total available forage (s.e. of mean) in the area were 55 628 000 (12 920 000) kg DM and 30 007 000 (2 437 000) kg DM at the end of growing season and dry season respectively. Although the area of the cereal fields covered only 0·315 of the area, about 0·69 and 0·82 of the available forage existed in the harvested cereal fields at the ends of growing season and dry season respectively. The integration of cereal fields and rangeland is a normal land use system for livestock management in the area. The higher cover of herbaceous vegetation types showed higher grazing impacts which reduced the total available forage at the end of the growing season by 0·817 (0·199) at the end of the dry season. Although these dense herbaceous vegetation types could possibly produce more available forage, they would incur more intensive grazing impact. On the contrary, lighter grazing impact would occur with a higher cover of shrub vegetation types. The importance of maintaining plant cover over the rangeland area to protect the land against soil erosion is stressed.

Growing season

Quadrat

Dry season

Herbaceous plant

10.1111/j.1365-2494.2005.00448.x

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Citations (10)

Invests heavily in forage and pasture legume genetic resource conversation and utilisation for the future of arid and semi-arid zones in West Asia and North Africa

HAL (Le Centre pour la Communication Scientifique Directe) (1999)

M. Bounejmate G. Gintzburger S. Christiansen Larry D. Robertson A. Abd El Moneim

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Seasonal Variation in Above-Ground Annual and Perennial Phytomass of an Arid Rangeland in Libya

Journal of Range Management (1986)

G. Gintzburger

Seasonality

10.2307/3899778

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Interest in spontaneous plants of arid and desert zones for rehabilitation of degraded environments in subsaharan Tunisia: the case of Periploca laevigata Ait. and of Rhus tripartitum (Ucria) DS.

Mohamed Neffati G. Gintzburger M. Bounejmate A. Nefzaoui

Desert (philosophy)

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Water relations of eight species or provenances of Atriplex in the arid mediterranean zone of Chile.

R. Y. H. Silva S. Lailhacar G. Gintzburger M. Bounejmate A. Nefzaoui

Atriplex

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The steppes of Middle Asia: post-1991 agricultural and rangeland adjustement

G. Gintzburger H.N. le Houérou K.N. Toderich

Steppe

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Rangeland rehabilitation through plantation of fodder shrubs in Kanak Valley, Balochistan, Pakistan: community participation.

Khurram Nawaz G. Gintzburger M. Bounejmate A. Nefzaoui

Fodder

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A spatial desertification indicator for Mediterranean arid rangelands: a case study in Algeria

The Rangeland Journal (2013)

Slim Saädi G. Gintzburger

Sheep and goat production is the main and sometimes only agricultural activity available to populations living on rangelands in the arid regions around the Mediterranean. Desertification threatens large areas of Mediterranean arid rangelands but remains difficult to describe, quantify and accurately locate for management purposes. A methodology is described which estimates a Spatial Rain-Use Efficiency Index (SRUEI) and its potential use to evaluate rangeland condition at a large scale. It is based on an Aboveground Net Primary Production (AGNPP) map generated from field herbage mass measurements and a rainfall spatial distribution map derived from local elevation–rainfall gradients with the whole resulting from satellite imagery processing and GIS technology. The area of the case study was in the Nâama–Mecheria region located on the High Plateau south of Oran (Algeria). It covers ~215 000 ha, receiving ~200 mm year–1 of winter and spring precipitation. The Nâama–Mecheria SRUEI-derived map clearly shows the degradation gradient declining away from the settlements. The Mecheria AGNPP 2007 map and associated grazing rings indicate that the Mecheria cooperative flocks may ingest 48–57% (Range Use Factor) of the rangeland’s seasonal plant production, which is barely compatible with sustainable rangeland use. When adding the effect of fuel wood collection by local residents and rain-fed arable cropping, the Nâama–Mecheria region is undoubtedly heading towards a slow but certain desertification of its fragile arid rangelands unless correcting measures are implemented. The SRUEI and associated results are powerful tools that allow rangeland conditions to be mapped, and which can be employed in planning and pursuing sustainable management of rangelands in such arid areas.

Desertification

Rangeland management

Arable land

10.1071/rj12021

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Citations (19)

Food and feed prospects for resources in Central Asia

HAL (Le Centre pour la Communication Scientifique Directe) (1997)

T. Nordblom F. Shomo G. Gintzburger

Central Asia

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A model for locating fodder shrub plantations sites in the Jordanian badiyah

The Rangeland Journal (2018)

Slim Saïdi G. Gintzburger Laurent Gazull J. Wallace S. Christiansen

We developed a GIS desktop model to accurately locate and map prospective areas for sustainable establishment and production of Atriplex plantations and other fodder shrubs in the desert in the north-eastern Jordanian Badiyah. The aim is to provide a tool to assist managers, local communities and development projects in Mediterranean arid and semi-arid rangelands. The model uses freely available data and GIS layers of current land use, land cover, settlement location, soil information, and derivatives from a digital elevation model to provide critical locations of drainage lines and to calculate Areas of Accumulated Water from concentrated runoff. The model identified, accurately located and mapped ~4500 ha (1.44% of the test zone) as technically appropriate for potential shrub plantations sites. The final site map must be field-checked and validated with the local communities and authorities. Our model has potential for wide application over arid and semi-arid Mediterranean rangelands from Morocco to Pakistan, with local adjustment of our parameters and rules. The model considerably reduces the risk and costs of fodder plantation establishment operations, thus increasing the feasibility of efforts to maximise fodder shrub establishment, survival and production.

Fodder

Desertification

10.1071/rj17129

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Citations (1)