نتایج جستجو برای: arid rangelands

تعداد نتایج: 20677  

Journal: :Sustainability 2023

Eastern Africa is a relatively dry area, with considerable pastoralist population, which among the poorest segments of society. Pastoralism form subsistence lifestyle, and while pastoralists produce large proportion region’s livestock products, they are not covered well by statistical recording. Pastoralists experts in keeping arid rangelands, but often suffer from land alienation, environmenta...

Journal: :Ecological Management and Restoration 2021

Wildlife management on a landscape scale is often complex, particularly where different land use practices occur in the same region. This so for of overabundant grazing species (both domestic and native) modified landscape, anthropogenic activities climatic drivers can influence their distribution abundance beyond sustainable levels. In Australia’s arid rangelands, macropods benefit from pastor...

2007
William J. Elliot Peter R. Robichaud I. Sue Miller

Abstract. In both forest and rangelands, fuel reduction operations are now common practices. Mechanical thinning followed by prescribed fire is common in forests, while fire is frequently applied to rangelands. Studies at different scales (50 sq m to 389 ha) measure the erosion from fuel management. This presentation compares runoff and erosion from these studies. Plot size has the greatest inf...

2017
Torsten Wronski Jean Damascene Bariyanga Ping Sun Martin Plath Ann Apio

Lantana camara L. (Verbenaceae) originates from tropical Central and South America and has become invasive in about 50 countries. It causes problems when invading rangelands due to its toxicity to livestock and its tendency to form dense, monotonous thickets. Its invasiveness can partly be explained by the high tannin content largely protecting the species from being browsed, its tolerance to a...

Journal: :Crop Science 2022

The native forage, false Rhodes grass [Leptochloa crinita (Lag.) P.M. Peterson and N.W. Snow], represents an important component of the arid semi-arid rangelands Americas, due to its large area distribution tolerance drought cattle grazing. Precise information on nutritive value factors that influence this trait is relevant for effective utilization as a forage in regions world. Here, we charac...

Journal: :Earth Sciences Research Journal 2022

Soil degradation induced by gully erosion represents a worldwide problem in the many arid and semi-arid countries, such as Iran. This study assessed: (1) importance of variables that control using Boruta algorithm, (2) relationship among causative gullied locations evidential belief function model (EBF), (3) development algorithms boosted regression tree (BRT) support vector machine (SVM). Base...

Journal: :Environmental pollution 2002
G E Schuma H H Janzen J E Herrick

The USA has about 336 Mha of grazing lands of which rangelands account for 48%. Changes in rangeland soil C can occur in response to a wide range of management and environmental factors. Grazing, fire, and fertilization have been shown to affect soil C storage in rangelands, as has converting marginal croplands into grasslands. Carbon losses due to soil erosion can influence soil C storage on r...

Arid ecosystems and deserts cover much of the Iran’s land. These areas are exploited by local communities. Considering the importance of the conservation and development of natural ecosystems in the arid regions, a study was done to assess factors influencing usage of rangeland conservation practices by exploiters through combination of survey methods and case study in arid rangeland of B...

Journal: :Landscape Ecology 2022

Abstract Context Combining field-based assessments with remote-sensing proxies of landscape patterns provides the opportunity to monitor terrestrial ecosystem health status in support sustainable development goals (SDG). Objectives Linking qualitative field data quantitative imagery map (SDG15.3.1 “land degradation neutrality”). Methods A approach using Interpreting Indicators Rangeland-Health ...

Journal: :Bulletin of the Ecological Society of America 2006

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