Carbon dioxide efflux from long-term grazing management systems in a semiarid region

2013 ◽  
Vol 164 ◽  
pp. 137-144 ◽  
Author(s):  
M.A. Liebig ◽  
S.L. Kronberg ◽  
J.R. Hendrickson ◽  
X. Dong ◽  
J.R. Gross
Keyword(s):  
Carbon Dioxide ◽  
Grazing Management ◽  
Management Systems ◽  
Semiarid Region ◽  
Carbon Dioxide Efflux

scholarly journals Experimental fire increases soil carbon dioxide efflux in a grassland long-term multifactor global change experiment

2016 ◽  
Vol 23 (5) ◽  
pp. 1975-1987 ◽  
Author(s):  
Aaron L. Strong ◽  
Tera P. Johnson ◽  
Nona R. Chiariello ◽  
Christopher B. Field
Keyword(s):  
Carbon Dioxide ◽  
Global Change ◽  
Soil Carbon ◽  
Soil Carbon Dioxide ◽  
Carbon Dioxide Efflux

scholarly journals Building the GLENCOE Platform -Grasslands LENding eConomic and ecOsystems sErvices

2021 ◽  
Vol 5 ◽  
Author(s):  
Thais Devincenzi ◽  
Martín Jaurena ◽  
Martín Durante ◽  
Jean Víctor Savian ◽  
Gabriel Ciappesoni ◽  
...  
Keyword(s):  
Grazing Management ◽  
System Level ◽  
Management Systems ◽  
Ecosystem Functions ◽  
Management Actions ◽  
Natural Grasslands ◽  
Grazing Systems ◽  
The Impact ◽  
Livestock Systems

To feed the rising population whilst also preserving ecosystem functions, creative solutions are needed for the ecological intensification of natural grassland-based livestock systems. In Uruguay, natural grasslands are the main nutritional resource for livestock production. In these ecosystems, cattle and sheep graze together all the year round, and grasslands are frequently heavily grazed. Considerable research has been generated concerning grassland management, but there is still no knowledge about the impact of decision rules that supports management actions on long-term ecosystem functioning, at the system level. To meet this deficit, a participatory working group of farmers, researchers, and consultants have developed the GLENCOE platform. This platform is a large-scale facility, supported by INIA-Uruguay, designed to answer the following question: How to intensify the grazing management to improve the sustainability of livestock systems based on natural grasslands? To build the platform three steps were followed: (I) definition of the research problem using a problem tree analysis; (ii) conceptualization of the platform and the design of the grazing systems to be evaluated; and, (iii) spatial allocation of the grazing systems according to the variability of soil, slopes, and seasonal dynamic of vegetation indexes. These criteria were considered across farmlets that were equivalent in the initial stage, allowing causal inferences for the systems trajectories on productive and environmental traits. The platform is composed of three independent farmlets of 50 ha each, where multiparous Hereford cows and Merinos wethers co-graze under three grazing management systems. Each farmlet is managed according to different spatio-temporal decisions of the specific management of vegetation communities, grazing methods, and the stockpile of forage that is allowed by the number of the existing paddocks. Farmlet-1; comprises less decisions (2 paddocks), Farmlet-2; intermediate (8 paddocks), and Farmlet-3; high level of decisions (32 paddocks). This innovative platform will be used as a participatory and interdisciplinary space for research and co-learning of management on processes that can only be observed in long-term evaluations, and at farmlet scale. We expect that this new approach will contribute to the developement and implemention of sustainable grazing management systems in Uruguay.

scholarly journals Managing the unmanageable: reinstating the dingo for pastoral sustainability in Australian rangelands

2021 ◽  
Vol 133 (1) ◽  
pp. 27
Author(s):  
David Pollock
Keyword(s):  
Cost Effective ◽  
Grazing Pressure ◽  
Government Funding ◽  
Grazing Management ◽  
Management Systems ◽  
Sustainable Land Management ◽  
Rest Periods ◽  
Arid Rangelands ◽  
Term Management

The predominant grazing management system used in the arid rangelands regions of Australia, set stocking, is not conducive to sustainable land management. More appropriate grazing management systems based upon periodic rest periods for important pasture species have not been adopted by pastoralists because the unmanaged grazing pressure from animals such as goats and kangaroos has been too high. Dingoes are the only cost-effective and long-term management solution to the effect of unmanaged grazing by goats and kangaroos. Yet government funding targets dingo eradication in pastoral areas, and it does so by adopting misleading and scientifically inaccurate terms for describing dingoes.

Lucerne survival in south-east Queensland in relation to grazing management systems

1979 ◽  
Vol 19 (97) ◽  
pp. 208 ◽  
Author(s):  
GJ Leach
Keyword(s):  
Perennial Grass ◽  
Crown Rot ◽  
Grazing Management ◽  
Management Systems ◽  
Stocking Rate ◽  
Colletotrichum Trifolii ◽  
Tropical Environments ◽  
Critical Attention ◽  
Average Monthly Rainfall

Survival of lucerne plants and changes in the row cover of lucerne in relation to grazing management were studied in an experiment at Lawes, south-east Queensland, from 1971 to 1977. There were six grazed treatments (resting for 32 or 44 days combined with grazing for 4 or 16 days, resting for 56 days with grazing for 4 days, and resting for 40 days with grazing for 8 days) and three mown treatments (mown every 36,48 or 60 days). All grazing was with sheep, at a stocking rate equivalent to 20 ha-1 on a year round basis. The experiment was irrigated when necessary to ensure that moisture at least equivalent to the long-term average monthly rainfall was received. There were about 42 lucerne plants m-2 in November 1971 and about 13 plants m-2 in October 1977; thus lucerne survival was good in all treatments, with stands losing about five plants m-2 annum-1. Management effects were small, with survival and row cover becoming slightly better as the interval between grazings or mowings increased from 32 to 60 days. Grazing for four days gave poorer survival than either grazing for 8 or 16 days or mowing. Perennial grass cover was much greater with four-day grazing than in the other treatments. Inspection at the end of the experiment showed nearly all crowns to have moderate symptoms of crown rot caused by Colletotrichum trifolii. The need for critical attention to the interaction between moisture supply, grass invasion and disease accumulation in maintaining lucerne stands in sub-tropical environments is discussed.

scholarly journals NUTRITION OF GRAZING SHEEP

1959 ◽  
pp. 86-98
Author(s):  
L.R. Wallace
Keyword(s):  
Point Of View ◽  
Grazing Management ◽  
Management Systems ◽  
Animal Performance ◽  
Different Types ◽  
Grazing Sheep ◽  
Clear Idea ◽  
Different Levels ◽  
Long Term Studies

During recent years quite a lot of information has been accumulated which shows the way in which sheep respond to different levels of feeding imposed for short periods at different times of the year. As a result, we have a very clear idea of which are the more, and which are the less important periods from the point of view of animal performance. Although there is still a very great need for long-term studies on a complete farm basis, designed to ascertain the grazing management systems that will give the best over-all results on different types of farm in different localities, the work already done has, at least, established the main principles upon which grazing management must be based if good results are to be obtained.

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