Results 191 to 200 of about 2,709 (232)
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Environmental Management, 2014
Applying the threshold concept to rangeland management is an important challenge in semi-arid and arid regions. Threshold recognition and prediction is necessary to enable local pastoralists to prevent the occurrence of an undesirable state that would result from unsustainable grazing pressure, but this requires a better understanding of the ...
Kaoru, Kakinuma +4 more
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Applying the threshold concept to rangeland management is an important challenge in semi-arid and arid regions. Threshold recognition and prediction is necessary to enable local pastoralists to prevent the occurrence of an undesirable state that would result from unsustainable grazing pressure, but this requires a better understanding of the ...
Kaoru, Kakinuma +4 more
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Tundra vegetation as a rangeland resource
1988Tundra rangelands comprise about 10% of the earth’s land surface. They provide forage all or part of the year for millions of wild and domestic reindeer and for muskoxen as well as summer range for other domestic ungulates. Arctic tundra habitats are of international significance because of their importance to waterfowl and other migratory bird species.
Peter C. Lent, David R. Klein
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Remote sensing applications for monitoring rangeland vegetation
Journal of the Grassland Society of Southern Africa, 1991Remote sensing techniques hold considerable promise for the inventory and monitoring of natural resources on rangelands. A significant lack of information concerning basic spectral characteristics of range vegetation and soils has resulted in a lack of rangeland applications. The parameters of interest for range condition must be identified and a means
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Climate-grazing interactions in Mongolian rangeland vegetation
2022Rangelands are the most widespread land-use systems in drylands, where they often represent the only sustainable form of land-use due to the limited water availability. The intensity of the land-use of such rangeland ecosystems in drylands depends to a large extent on the climatic variability in time and space.
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Vegetation and condition of arid rangeland ecosystem in Central Saudi Arabia
Saudi Arabia rangeland ecosystems have undergone intense processes of degradation for many decades because of extreme climate and human activities such as overgrazing and socioeconomic changes. In this study, Hail and Qassim Regions of Saudi Arabia covering an area about 79610.73 km2 were selected to study the rangeland vegetation and condition ...
Abdulaziz Assaeed +2 more
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Rangeland vegetation — hydrologic interactions
1988Hydrologic resources are closely tied to an area’s climate and rangelands encompass many different climatic zones. Approximately 40% of the world’s land surface is classified as rangeland, and more than 80% is within arid and semiarid zones. Hydrologic processes are influenced greatly by the kinds and amounts of plants growing on rangelands.
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Vegetation management of Chenopod rangelands in South Australia
The Rangeland Journal, 1984In 1896 the leading South Australian pastoralist Peter Waite specified how the grazing of sheep on chenopod shrublands in South Australia should, in his opinion, be managed. In 1919 George Nicolson put most of Waite's specification into practice on Roopena station near Whyalla, South Australia.
RT Lange, AD Nicolson, DA Nicolson
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Rangeland vegetation productivity and biomass
1988Herbage weight or biomass is an important characteristic for range vegetation since it supports directly or indirectly all consumer groups. Plant biomass is also important as a measure of dominance in plant communities. Many methods have been devised to estimate plant biomass, but all have some limitations.
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Vegetation attributes and their application to the management of Australian rangelands
1988This chapter presents the attributes of species and communities in Australian rangelands and describes how these may be used to manipulate vegetation composition towards desired objectives. The characteristics of ephemerals, herbaceous perennials and woody perennials are outlined, including the flux of their populations in relation to variation in ...
A. D. Wilson +2 more
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Dissipation of Picloram from Vegetation of Semiarid Rangelands
Weed Science, 1971About 25 ppm of 4-amino-3,5,6-trichloropicolinic acid (picloram) usually were detected on grass, primarily buffalograss (Buchloe dactyloides(Nutt.) Engelm.) and blue grama (Bouteloua gracilisWilld.exHBK LagexGriffiths), immediately after application of 0.28 kg/ha picloram + 0.28 kg/ha (2,4,5-trichlorophenoxy)acetic acid (2,4,5-T) in northwest Texas ...
C. J. Scifres, R. R. Hahn, M. G. Merkle
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