نتایج جستجو برای: rangeland condition

تعداد نتایج: 317319  

2005
Ian A. Simpson Amanda M. Thomson Jennifer L. Brown

The introduction of domestic livestock particularly sheep and rangeland grazing by Norse settlers to Faroe during the 9th century has generally been described as a major pressure on a sensitive landscape, leading to rapid and widespread vegetation change and contributing to land degradation. This view has, however, been developed without consideration of Norse grazing management practices which...

Diana Askarizadeh Dnyan Patil Mohammad hasan Jouri Nosrat Safaian, Rivandra S. Gavali

Based on the importance and role of species diversity and richness as ameasurement of the health of an ecosystem; studying of their components can lead toevaluate the health condition of rangeland. This research was carried out in a part ofhighland mountainous rangeland of Mount Alborz Range in Iran. Diversity and richnesswere assessed as an ecosystem health indicator. The study area was locate...

2005
S. Vetter

This paper reviews the predictions and management implications of two current paradigms in the ecology and management of arid and semi-arid rangelands. The equilibrium model stresses the importance of biotic feedbacks such as density-dependent regulation of livestock populations and the feedback of livestock density on vegetation composition, cover and productivity. Range management under this ...

2005
N. J. W. Thomas

The encroachment of agricultural practices into traditional rangeland areas of north-eastern Morocco is considered by some to have negative impacts in both the agro-pastoral communities that utilise these ranges and the surrounding physical environment. Indicating the extent and location of such land use changes provides resource managers with valuable information on which more sustainable deve...

2017
Ru An Hui-Lin Wang Xue-Zhi Feng Zhe Wang Ying Wang Ying-Hui Zhao

the “Three-River Headwaters” region (TRHR) rangeland ecosystem is extremely sensitive and fragile, and in recent years has undergone continuous degradation. The vast area and severe nature conditions inhibit data acquisition and field experiments, resulting in different understandings about the spatial characteristics and dynamics of rangeland degradation in the region. Therefore, reliable moni...

بشری, حسین, جعفری, رضا, جعفری, فاطمه,

Rangeland condition assessment plays an important role in determining range health and applying appropriate management programs. This study aimed to evaluate the structure and function of a semi-steppe rangeland using Landscape Function Analysis technique (LFA) in different land conditions in western Isfahan province, Iran. For this purpose, 4, 3 and 7 sites in different rangeland condition cla...

Diana Askarizadeh Mohammad Hassan Jouri, Vahid Rahimi Kakroodi

Evaluation of range conditions and plant diversity circumstances can help to rangeland managers who establish their managerial approaches on the basis of ecological capabilities of rangeland ecosystems. Hence, surveying of rangelands was done in four sites of northern Alborz Mt. including western Alborz (Masooleh site), west to middle Alborz (Javaherdeh site), central area (Polour site), and ea...

2004
Andrew Dougill Mark Reed

There have been few attempts to develop, test or apply sustainability indicators for natural resource management at a farm-level, and even fewer have fully consulted land users from the initiation of this process. While environmental sustainability indicators need to be accurate and reliable, land users also need them to be rapid, cost-effective and easy to use, in addition to being linked to m...

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