نتایج جستجو برای: moderate grazing and no grazing enclosure

تعداد نتایج: 17412713  

ژورنال: علوم آب و خاک 2017
بهمنش, بهاره, جلیلیان, فاطمه, غلامی, پرویز, محمداسمعیلی, مجید,

In this study, different indices of vegetation cover variations and different physicochemical properties of soil in three treatments of flood spreading, enclosure and grazing (control) were investigated and compared in in the region of Peshert in Mazandaran province. In order to measure different soil characteristics, 18 soil samples (six withdrawals at any treatment) from a depth of zero to 30...

Adel Sepehry Hossein Barani Mohsen Sharafatmandrad,

In arid and semi-arid rangelands, grazing as one of the natural or human induced processes has direct and indirect effects on structure and dynamics of plant community and ecosystems. A study was done to analyze the effects of grazing on plant species diversity and Plant Functional Types‘ (PFTs) diversity of arid and semi-arid rangelands. We analyzed plant richness and diversity data from 75 sa...

Abstract The objective of the experiment was the opinion of respondent about effects of Grazing on Tabar plant on animal health and milk characteristic in Gezira State, Sudan. This the questionnaire was conducted in two localities of Gezira state where Tabar plant was cultivated. This included, South Gezira locality and Greater Wad Madani Locality. The questionnaire was distributed randomly to...

Journal: :Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 2013
Daiana Lima Brito Bruno Stéfano Lima Dallago Helder Louvandini Viviane Rodrigues Verdolin dos Santos Sonia Emília Figueirêdo de Araújo Torres Edgard Franco Gomes Alessandro Francisco Talamini do Amarante Cristiano Barros de Melo Concepta Margaret McManus

This experiment was carried out on 8 ha of Panicum maximum cv. Tanzania pastures, with rotational grazing consisting of 7 days of occupation and 21 days of rest. Four treatments were evaluated: cattle grazing alone (BOV), sheep grazing alone (OVI), cattle and sheep grazing simultaneously (SIM) and cattle grazing followed by sheep (alternate - ALT). Twenty heifers and 30 male Santa Inês lambs we...

Journal: :مرتع و آبخیزداری 0
احمد صادقی پور استادیار دانشکدة کویرشناسی، دانشگاه سمنان نادیا کمالی دانشجوی دکتری مرتع داری، دانشگاه تهران پریا کمالی دانشجوی دکتری مرتع داری، دانشگاه علوم کشاورزی و منابع طبیعی گرگان حامد جنیدی دانشجوی دکتری مرتع داری، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

this study investigates monthly and seasonal variations of carbon emission from the soil at different grazing intensities. three areas of exclosure, low and high grazing intensities were selected in ghoosheh region of semnan province. carbon emission was measured monthly, in each treatment applying alkali traps (csc) during a year. emission and grazing data were analyzed, using a factorial expe...

2015
Jonathan Sanderman Jodie Reseigh Michael Wurst Mary-Anne Young Jenet Austin Kurt O. Reinhart

Rotational grazing management strategies have been promoted as a way to improve the sustainability of native grass-based pasture systems. From disturbance ecology theory, rotational grazing relative to continuous grazing can increase pasture productivity by allowing vegetation to recover after short intense grazing periods. This project sought to assess whether soil organic carbon (SOC) stocks ...

A. Farajollahi E. Bandak H. Azarnivand H. Pouzesh

Soil physical properties have an important role on vegetation growththrough affecting the development of root system. The aim of this study was toinvestigate the trampling effect of livestock grazing on soil physical properties andvegetation cover changes. The experiment was conducted on three range conditionsites (Reference, Key and Critical area) with ten frequencies in HosseinabadeKudistan i...

2017
John E. Gilley B. D. Patton P. E. Nyren J. R. Simanton J. E. Gilley

Grazing and haying effects on runoff and erosion from a former Conservation Reserve Program (CRP) site near Streeter, North Dakota, were determined. Treatments included undisturbed CRP, twice-over rotational grazing, season-long grazing, haying, and burning. Runoff and erosion were measured from simulated rainfall which was applied to 3.7 x 10.7 m (12.0 X 35.1 ft) plots. Following an initial st...

Journal: :مرتع و آبخیزداری 0
جواد معتمدی استادیار گروه مرتع و آبخیزداری، دانشکده منابع طبیعی دانشگاه ارومیه، ایران حسن سلالی دانش آموخته کارشناسی ارشد مرتعداری دانشکده منابع طبیعی دانشگاه ارومیه، ایران

investigation of the grazing behavior of grazing animals on the rangeland is one of the basic necessities of grazing management in different climatic regions. the current study with the aim of exploring the grazing behavior of makuyi sheep breed was conducted in the mountainous rangelands of kelid daghi of jolfa as representative rangelands for makuyi sheep breed dispersion in east azerbayjan p...

Journal: :Biology letters 2007
Leif Egil Loe Atle Mysterud Audun Stien Harald Steen Darren M Evans Gunnar Austrheim

Grazing by large herbivores may negatively affect bird populations. This is of great conservation concern in areas with intensive sheep grazing. Sheep management varies substantially between regions, but no study has been performed in less intensively grazed systems. In a fully replicated, landscape scale experiment with three levels of sheep grazing, we tested whether the abundance and diversi...

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