نتایج جستجو برای: herbaceous rangeland

تعداد نتایج: 6892  

Journal: :Rangeland Ecology & Management 2021

Rangeland production is a foundational ecosystem service and resource on which livestock, wildlife, people depend. Capitalizing recent advancements in the use of remote sensing data across rangelands, we provide estimates herbaceous rangeland from 1986 to 2019 at 16-d annual time steps 30-m resolution western United States. A factorial comparison this dataset three national scale datasets prese...

Journal: :Remote Sensing 2017
Anne Schucknecht Michele Meroni François Kayitakire Amadou Boureima

Livestock plays an important economic role in Niger, especially in the semi-arid regions, while being highly vulnerable as a result of the large inter-annual variability of precipitation and, hence, rangeland production. This study aims to support effective rangeland management by developing an approach for mapping rangeland biomass production. The observed spatiotemporal variability of biomass...

Journal: :Journal of Geophysical Research: Earth Surface 2014

2013
Carly Golodets Marcelo Sternberg Jaime Kigel Bertrand Boeken Zalmen Henkin No’am G. Seligman Eugene David Ungar

Climate change is predicted to alter the rainfall regime in the Eastern Mediterranean Basin: total annual rainfall will decrease, while seasonal and inter-annual variation in rainfall will increase. Such changes in the rainfall regime could potentially lead to large-scale changes in aboveground net primary productivity (ANPP) in the region.We conducted a data-driven evaluation of herbaceous ANP...

2009
Jonathan D. Bates Edward C. Rhodes Kirk W. Davies Robert Sharp

Prescribed fire in rangeland ecosystems is applied for a variety of management objectives, including enhancing productivity of forage species for domestic livestock. In the big sagebrush (Artemisia tridentata Nutt.) steppe of the western United States, fire has been a natural and prescribed disturbance, temporarily shifting vegetation from shrub–grass codominance to grass dominance. There is li...

Journal: :journal of rangeland science 2013
ali mahdavi javad eshaghi rad mojtaba jamshidifard

recognizing the herbaceous plant species diversity could use as an importantindicator applied for the rangeland and forests management. considering the presence ofvegetation and animal husbandry in zagros region, iran, being aware of the diversity andrichness of plant species is necessary to management or the destructed vegetationrestoration. in order to study the effect of aspect and elevation...

Journal: :مرتع و آبخیزداری 0
زهرا عبدالعلی زاده دانشجوی دکتری مرتعداری، دانشگاه محقق اردبیلی، ایران. عطالله ابراهیمی دانشیار دانشکده منابع طبیعی و علوم زمین دانشگاه شهرکرد، ایران

sabzkouh protected area, with the variety of natural ecosystems and landscapes, is very rich from the point of diversity in climate, topography, habitats and wildlife that is located in central zagros. evidences show that its ecosystems such as other iranian semiarid natural ecosystems, undergone changes in their vegetation structure over the past years. obtaining multi-spectral and multi-tempo...

Journal: :Environment, Development and Sustainability 2021

Abstract This study examined the effects of transhumance pressure on total abavoe-ground biomass and forage availability rangelands in Benin. We also investigated implications land cover transitions over a 31-year period. Our work was carried out three regions Benin representing distinct phytogeographic regimes: Ketou, Tchaourou, Sinende. Ground-truthing sampling herbaceous phanaerophyte strata...

Ali Mahdavi Javad Eshaghi Rad Mojtaba Jamshidifard

Recognizing the herbaceous plant species diversity could use as an importantindicator applied for the rangeland and forests management. Considering the presence ofvegetation and animal husbandry in Zagros region, Iran, being aware of the diversity andrichness of plant species is necessary to management or the destructed vegetationrestoration. In order to study the effect of aspect and elevation...

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