نتایج جستجو برای: eg the livestock grazing

تعداد نتایج: 16061155  

Alireza Naseri Mahmod Moallemi Mehdi Farahpour, Mohamad Fayaz Mohamasreza Najibzaadeh

Range management needs information on distribution of livestock. The better the distribution of the livestock, the more uniform the use of the rangeland. This study was conducted to record the path of the herd steering by the shepherd. A GPS was attached to a three year old ewe which was moving with the flock. The path of flock movement was recorded for three years on a monthly basis during the...

Ali Ashraf Jafari Hossein Arzani Mohammad Jafari Sedigheh Zare Kia Seyyed Akbar Javadi

This study aims to assess the effect of grazing intensity on vegetation structure, soil nutrient concentrations and soil physical properties. The study was carried out in steppe rangelands of Saveh, Markazi province, Iran. Four sites with four grazing intensities including very high, high, moderate and non-grazed with the same ecological conditions were selected. To study various vegetation and...

Journal: :Ecological applications : a publication of the Ecological Society of America 2014
R J Fensham J L Silcock J Firn

Even when no baseline data are available, the impacts of 150 years of livestock grazing on natural grasslands can be assessed using a combined approach of grazing manipulation and regional-scale assessment of the flora. Here, we demonstrate the efficacy of this method across 18 sites in the semidesert Mitchell grasslands of northeastern Australia. Fifteen-year-old exclosures (ungrazed and macro...

Journal: :Agriculture 2023

Grazing plays an important role in milk production most regions of the world. Despite importance grazing, current trends livestock farming Europe are causing a decline popularity pasture-based feeding dairy cows. This paper aims to provide overview challenges faced by pasture system under climate change. lands ecosystem services including regulation and storage water flows, nutrient cycling, C ...

2006
Daniel G. Milchunas

Grazing by wild and domestic mammals can have small to large effects on plant communities, depending on characteristics of the particular community and of the type and intensity of grazing. The broad objective of this report was to extensively review literature on the effects of grazing on 25 plant communities of the southwestern U.S. in terms of plant species composition, aboveground primary p...

Journal: :desert 2013
a. mohebby m. jafari a. tavili s.a. javadi e. zandi esfahan

it has often been stated or implied that grazing is an important factor in the land degradation process, a suggestion supported by various research projects, and this study investigated the effect of livestock grazing on stem height, crowncover, production, basal diameter, stem biomass, litter, leaf-stem index (leaf to stem weight) , root diameter and weight and seed production per individual o...

ارزانی, حسین, افتخاری, علیرضا, عبدالهی, جلال, فرحپور, مهدی,

Species which were grazed by livestock and wildlife in range sites and the portion taken by each animal were the subject of this study. Two sites occupied with Scariola orientalis (Boiss.) Sojak and Artemisia sieberi Besser and another with Aellenia subaphyla (C.A.Mey.)Aellen and Artemisia sieberi were selected for the study. These sites were already established by Yazd Research Center for Agri...

2014
Eva K. Strand Karen L. Launchbaugh Ryan Limb L. Allen Torell

Herbivory and fire are natural interacting forces contributing to the maintenance of rangeland ecosystems. Wildfires in the sagebrush dominated ecosystems of the Great Basin are becoming larger and more frequent, and may dramatically alter plant communities and habitat. This synthesis describes what is currently known about the cumulative impacts of historic livestock grazing patterns and short...

Diana Askarizadeh Mohammad Hasan Jouri Mohammad Zare Mona FakhreGhazi Soodeh Miarrostami Tina Salarian,

Subalpine ecosystems are highly fragile as compared to biological andenvironmental factors. Landslide is one of the ruinous upshots of this ecosystem. One of theimpressionable areas in the cause of natural factor is Masoleh watershed in western AlborzMt, (Iran). In order to landslide hazard zonation, landslide index and frequency ratio methodbased on twelve causative factors such as slope, slop...

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