Results 131 to 140 of about 1,472,382 (291)

Moderate grazing promotes the root biomass in Kobresia meadow on the northern Qinghai–Tibet Plateau

open access: yesEcology and Evolution, 2019
Grazing is an important modulator of both plant productivity and biodiversity in grassland community, yet how to determine a suitable grazing intensity in alpine grassland is still controversy.
Licong Dai   +10 more
doaj   +1 more source

In‐Situ Constructed Cations for 2D/3D Perovskite Heterostructure for Stable and Efficient Photovoltaics

open access: yesAdvanced Science, EarlyView.
An in‐situ spacer‐cation construction strategy is developed by inducing strong hydrogen bonding between n‐hexyl phosphonic acid (HPA) and FA+, forming a stable N‐type 2D/3D perovskite heterostructure. This approach suppressed defect formation, promoted electron transport, and improved intrinsic stability, delivering 26.32% PCE, excellent operational ...
Min Liu   +10 more
wiley   +1 more source

AN EVALUATION OF THE PRIA GRAZING FEE FORMULA [PDF]

open access: yes
The federal grazing fee is currently set using the Public Rangeland Improvement Act (PRIA) fee formula established in 1978 and modified in 1986. The formula is adjusted annually using indices of private land grazing lease rates (Forage Value Index, FVI),
Bartlett, E. Tom   +4 more
core  

Emergent 3D Fermiology and Magnetism in an Intercalated Van der Waals System

open access: yesAdvanced Science, EarlyView.
An emergent three‐dimensional electronic state is uncovered in an intercalated van der Waals system. A spin‐polarized intercalant‐host hybridized band crossing the Fermi level provides an itinerant channel for interlayer exchange, highlighting how electronic dispersion governs magnetic dimensionality.
Luigi Camerano   +18 more
wiley   +1 more source

Regime shift in the interaction between domestic livestock and the deer-tiger food chain

open access: yesEcological Indicators
The effects of grazing on wildlife have received considerable attention. Depending on factors such as its intensity and duration, grazing can impact higher-level species along the food chain through competition for available resources with wild ...
Dawei Wang   +2 more
doaj   +1 more source

Intensive grazing increases beef production

open access: yesCalifornia Agriculture, 1989
Beef production per acre on a foothill range livestock operation increased under an intensive, rotational grazing system. There were management problems, but they were outweighed by the benefits.
M George, R Knight, P Sands, M Demment
openaire   +1 more source

Charge‐Transfer‐Mediated Boron Magneto‐Ionics: Towards Voltage‐Driven Multi‐Ion Transport

open access: yesAdvanced Science, EarlyView.
This study demonstrates voltage‐driven multi‐ion transport in FeBO systems, revealing simultaneous motion of B, Fe, and O ions enabled by charge‐transfer effects. By tuning oxidation states through oxygen incorporation, we achieve a transition from electrostatic‐like to electrochemical magneto‐ionic behavior. The findings establish boron magneto‐ionics,
Zheng Ma   +15 more
wiley   +1 more source

Urine patch distribution under dairy grazing at three stocking rates in Ireland [PDF]

open access: yes, 2011
peer-reviewedNitrate pollution of water is a serious global environmental issue. Grassland agriculture is a major source of diffuse nitrate pollution, with much of this nitrate originating from the urine patches of grazing animals.
Moir, James L.   +5 more
core   +1 more source

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