نتایج جستجو برای: semi degraded rangelands due to grazing

تعداد نتایج: 10657160  

Journal: :Animal : an international journal of animal bioscience 2010
M Jouven P Lapeyronie C-H Moulin F Bocquier

In the countries surrounding the Mediterranean basin, most of the semi-natural grazing lands are covered by rangelands. Rangelands can be defined as highly heterogeneous natural vegetation communities with high conservation value, growing in harsh environments (poor soils, unfavourable climatic conditions). In the recent socio-economic context, traditional livestock grazing practices that enabl...

Journal: :Journal of Mountain Science 2022

Abstract Watershed rangelands in Northern Afghanistan provide various ecosystem services that support the local people’s livelihoods, but they are now highly degraded essentially due to continuous high grazing pressure and recurrent droughts. Effects of shrub establishment method enhanced by water harvesting techniques rehabilitate have not been well addressed. The main goal this study was eval...

ژورنال: علوم آب و خاک 2006
حسین شمس, , سعید محتشم‌نیا, , مجید آقامحسنی فشمی, , محمد جنگجو, , احسان شهریاری, , حسن احمدی, , حسین ارزانی, , علی اصغر درویش صفت, , محمد جعفری, ,

Range suitability and its grazing capability are the most important criteria in rangeland analysis and monitoring. Determination and monitoring of factors affecting on range suitability and diagnosis of them are important .All range ecosystem components affect range suitability. Which among them physical and vegetational factors, forage production, water resources and sensitivity to erosion wer...

Journal: :Plant and Soil 2022

We assessed changes in soils and vegetation associated with different plant life forms increasing grazing intensity (GI) a subhumid grassland of Patagonia (Argentina), vast portions these grass steppes degraded states. reconstructed the historic GI gradient study sites characterised cover. sampled soil beneath patches shrub their bare interspaces, as well height hummocks thickness superficial h...

2014
Kari E. Veblen David A. Pyke Cameron L. Aldridge Michael L. Casazza Timothy J. Assal Melissa A. Farinha

Public land management agencies, such as the Bureau of Land Management (BLM), are charged with managing rangelands throughout the western United States for multiple uses, such as livestock grazing and conservation of sensitive species and their habitats. Monitoring of condition and trends of these rangelands, particularly with respect to effects of livestock grazing, provides critical informati...

2009
Birgit Müller Martin Quaas Karin Frank Stefan Baumgärtner

Rain-index insurance is strongly advocated in many parts of the developing world to help farmers to cope with climatic risk that prevail in (semi-)arid rangelands due to low and highly uncertain rainfall. We present a modeling analysis of how the availability of rain-index insurance affects the sustainability of rangeland management. We show that a rain-index insurance with frequent payoffs, i....

2008
E. G. King

Livestock overgrazing can threaten the ecological integrity of rangelands, and can also threaten the sustainability of pastoralist societies who depend on rangelands for their livelihood. Using facilitator plants in the restoration of degraded semi-arid rangelands offers a promising strategy because in such environments, facilitators can ameliorate harsh conditions that often limit the establis...

2004
Charles Perrings Brian Walker

In previous papers we have considered the optimal mix of biodiversity in semi-arid rangelands, focusing on the steady state. This paper addresses the question of conservation in the optimal use of rangelands, where conservation is understood to mean maintenance of the system in a ‘natural’ state. We consider a rangeland that may exist in one of two states. In the ‘natural’ state, its dynamics a...

Rangeland degradation is one of the global concerns affecting the pastoralists and those who suffer from its negative environmental consequences. Grazing exclosure has been extensively used among the techniques implemented by the government to protect the fertility of threatened rangelands. The impact of exclosure has been a controversial issue; therefore, it is important to understand its effe...

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