نتایج جستجو برای: one rangeland

تعداد نتایج: 2005340  

2006
James S. Jacobs Roger L. Sheley John J. Borkowski

Leafy spurge is an invasive Eurasian weed on pastures and rangeland in North America where it reduces grass forage production. Our objective was to determine the effects of multispecies grazing combined with Aphthona flea beetles on leafy spurge-infested rangeland. On two westernNorth Dakota sitesdivided into four25to79-hapastures, two grazingduration treatmentswere applied: season-long with 7 ...

2017
Mathew Brust W. W. Hoback Robert J. Wright MATHEW L. BRUST

2008
J. G. Han Y. J. Zhang C. J. Wang W. M. Bai Y. R. Wang G. D. Han L. H. Li

Rangelands of China have for centuries provided forage for livestock but now their role in water, soil, and biodiversity conservation is being recognised by Governments and people. However, much of the rangelands has recently degraded anddesertification is nowawidespread problem.The cause of the degradation is over-grazing andover-cultivation. Climate change is exacerbating theproblem.TheChines...

Journal: :Agriculture 2021

Political instability (PI) occurs between governments and other political elites either at the local, regional, and/or national levels. Planning, implementing, monitoring of sustainable rangeland management strategies have a significant impact on environment an area. In this study, term PI implies unsafe unstable exercise power, is major obstacle to implementation management. The main purpose r...

One of the key principles in rangeland management is determination of suitable times for exploitation and grazing of rangeland plants in summer and winter pasturelands. This determination of time not only prevents degradation of plant species, but also leads to optimal usage of plant yield. Multiple factors affect plant phenology among which temperature regime has the highest effect on plant de...

Intense grazing of rangeland is one of the most important factors affecting rangeland degradation, which causes soil compaction, increased runoff, weakening and degradation of vegetation, and changes in rangeland species composition, and ultimately affects forage and livestock production. The present study was conducted to investigate the different intensities of cattle and sheep grazing and in...

Journal: :Journal of animal science 1993
P L Sims

Replicated cow herds of 15 Angus x Hereford (AH) and 15 Brahman x Hereford (BH) F1 cows each were placed on native rangeland (NR) or native rangeland-complementary forage (NRCF) systems. The NR was 8.1 ha of sagebrush-mixed prairie per cow-calf unit and the NRCF used the same mixed prairie complemented by .4 ha of double-cropped winter wheat and summer annual forage replacing about 30% of the m...

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...

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