نتایج جستجو برای: natural rangelands

تعداد نتایج: 483631  

2017
Terence Dawson Adam Munn

Over more than a century there has been debate about the interactions of kangaroos and introduced domestic stock, especially sheep, in the semi-arid and arid rangelands. The potential for competition between the species is still controversial, with pastoralists generally assuming that exploitative competition is a continuing feature of the rangelands, with competition by kangaroos leading to re...

2003
Larry A. Redmon

It is critical for managers to understand the basic fundamental differences of managing introduced and rangeland forages. In the eastern part of Texas, introduced species dominate forage-based livestock production systems. As you move west of the IH35 corridor from Denton to San Antonio and then west of IH37 from San Antonio to Corpus Christi, however, you will notice few introduced species are...

Journal: :ecopersia 2015
davoud akhzari mohammad pessarakli farnaz mahmoodi behnoush farokhzadeh

livestock grazing and rangelands fire are important ecological disturbances influencing the vegetation and soil properties in rangelands ecosystem. this study was conducted to determine the effects of different burned treatments and distances from the water sources on some soil and vegetation properties of rangelands ecosystem. the experiment was conducted in lashgar dar rangelands. vegetation ...

Journal: :journal of rangeland science 2014
abolfazl sharifiyan bahraman hossein barani ahmad abedi sarvestani abolfazl haji mollahoseini

rangelands are known as one of the main income resources for their exploiters.in the recent century, management of iran rangeland has undergone vast transformationsbecause of vulnerable socio-economic conditions of pastoralists. a study was done toprovide a clear picture of the status and utilization of aq qala rangelands via assessinginternal and external environmental factors affecting the ut...

Journal: :International Journal of Environmental Science and Technology 2021

Modifying human activities is key to achieving land degradation neutrality in rangelands. Rangeland stakeholders encompass different ownership regimes; however, little known about whether models benefit or degrade social conditions and ecosystem services the Middle East. The aim of this research was determine effects Collective Council on ecological indicators wintery rangeland Iran. study incl...

Journal: :caspian journal of environmental sciences 2007
n. rahimzadeh halagh s.h.r. sadeghi

transpiration, as one of the components of hydrological cycle, has not been paid enough attention yet, while it is necessary for sound utilization of rangelands, mostly located in the arid and semiarid regions. the comparison of the different kinds of rangelands species in terms of transpiration rates provides range managers the required information to achieve optimal forage production for a gi...

Journal: :Remote Sensing of Environment 2021

Rangelands cover 70% of the world's land surface, and provide critical ecosystem services primary production, soil carbon storage, nutrient cycling. These are governed by very fine-scale spatial patterning carbon, nutrients, plant species at centimeter-to-meter scales, a phenomenon known as “islands fertility”. Such dynamics challenging to detect with most satellite manned airborne platforms. R...

Journal: :Ghana Journal of Science 2021

The survival of the extensive livestock system, practice for most farmers in industry Ghana depends heavily on natural pastures as forage resource. To efficiently use rangelands, knowledge species composition, especially that poisonous plants is essential. Documented scanty; documentation and dissemination resource would enable a wider access benefit to stakeholders. A study was conducted with ...

Journal: :Pastoralism 2023

Abstract Climate change and its variability adversely impact pastoral livelihoods, understanding climate is important to deduce policy implications for communities. Accordingly, the aim of this study was investigate temporal conditions spatial patterns drought across rangelands in areas West Guji Borana Zones, Southern Ethiopia. Temporal were performed at rangeland level, (distributions) estima...

Journal: :journal of rangeland science 2014
mohsen sharafatmandrad adel sepehry hossein barani

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...

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