نتایج جستجو برای: rangeland species

تعداد نتایج: 550009  

2002
Amitrajeet A. Batabyal Basudeb Biswas E. Bruce Godfrey

This paper uses a new ecological-economic approach to analyze the role of time in range management in a dynamic and stochastic setting. We first construct a theoretical model of a parcel of rangeland in which time restrictions are used to manage the land. We then show how the dynamic and the stochastic properties of this rangeland can be used to construct two managerial objectives that are ecol...

Journal: :African journal of traditional, complementary, and alternative medicines : AJTCAM 2013
Ghassem Habibi Bibalani Elnaz Taheri

The flora of protected Shanjan rangeland in Shabestar district, Azerbaijan Province, NW Iran was studied using a 1 m × 1 m quadrate in spring and summer 2011. The climate of this area is cold and dry. In this area 94 plant species belonging to 25 families were identified as constituting the major part of the vegetation. The families in the area are Amaryllidaceae, Boraginaceae, Campanulaceae, C...

2013
E. A. Taha

Livestock fodder needs in nearly all developing countries now exceed the sustainable yield of rangelands and other forage resources. In Africa, overgrazing has reduced range productivity virtually everywhere. It is important to provide animals with adequate nutrition to ensure the high productive and reproductive performance. Meanwhile, it is necessary to avoid the deterioration of the pasturel...

Journal: :GSC biological and pharmaceutical sciences 2021

Narman district is located at Eastern Anatolia Region of Turkey. Average altitude 1650 m, annual total precipitation about 420 mm. In study area main economic activity animal husbandry and production has made traditional practices, based on rangelands. This carried out to determine honey plants, frequently visited by bees in 20 different locations Narman. Total 56 plant species were determined ...

Seyedeh Sarah Hadian Yaser Feizabadi,

Forests and rangelands are the most important natural ecosystems which provide many economic benefits to the society due to their biodiversity and ecological functionalities. Dashtenaz wildlife refuge, Sari, is a sylvan region, covering 55 ha of rangeland with abundant diversity, is refuge of an endangered species of deer called Dama mesopotamica. In this study, Contingent Valuation Method (CVM...

Journal: Journal of Herbal Drugs 2011
Alavi S.Z Ghordoye Milan GH Rabie E Saeedi Goraghani H.R,

Background & Aim: In recent years, Iran and other countries pay special attention to side effects of chemical plants. This interest in plants and their derivatives leads to business of medicinal plants. In Caspian region, in forestry projects there are many plant species with medicinal uses from which the locale indigenous used due to traditional experience without any especial processing in pa...

2013
Nathan F Sayre Ryan RJ McAllister Brandon T Bestelmeyer Mark Moritz Matthew D Turner

www.frontiersinecology.org © The Ecological Society of America R – including grasslands, shrublands, savannas, deserts, prairies, steppe, and tundra – comprise 30–40% of Earth’s ice-free terrestrial surface (depending on one’s definition and data sources; Asner et al. 2004) and account for 91% of the world’s grazing lands (Reid et al. 2008). Encompassing watersheds for vast downstream populatio...

2015
Richard B. Harris Wang Wenying Badinqiuying Andrew T. Smith Donald J. Bedunah Shiping Wang

Rangeland degradation has been identified as a serious concern in alpine regions of western China on the Qinghai-Tibetan plateau (QTP). Numerous government-sponsored programs have been initiated, including many that feature long-term grazing prohibitions and some that call for eliminating pastoralism altogether. As well, government programs have long favored eliminating plateau pikas (Ochotona ...

2000
B. F. Sowell J. C. Mosley G. P. Bowman

This paper reviews current knowledge of the social behavior of grazing beef cattle and discusses how that knowledge can be applied to rangeland cattle management. Cattle herds are composed of social subgroups that influence grazing distribution on rangeland. Grazing distribution is, in part, a learned response; therefore, management strategies that alter the social composition and structure of ...

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