منابع مشابه
Effects of range condition on the temporal diet selection by goats in steppe rangelands of Iran
One of the key factors in managing a rangeland is to determine the relative preference of its major plant species by thegrazing livestock. Preference value of each plant species is affected by plant type, companion plants, availability byanimals, phenological stage, climate condition, and the livestock species. We investigated the grazing behaviour of anative goat (Garizi) in the steppe rangela...
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15 صفحه اولthe impact of e-readiness on ec success in public sector in iran the impact of e-readiness on ec success in public sector in iran
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Scaling Effects of Standing Crop Residues on the Wind Profile
velocities for soil erosion supports management guidelines (Hagen, 1996; Nielsen and Aiken, 1998; McMaster Standing senescent stems increase the aerodynamic roughness of et al., 2000). Effects of standing stems on eddy diffusion the surface, reducing wind energy available for momentum transfer at affect convective transport of heat, water vapor, and the soil surface, such as for wind erosion, a...
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In the 1960s, discovery of pleasure system (defined as reward system) in the brain that may underlie drug reward and addiction encouraged many scientists to investigate the mechanisms by which drug abuse affects central nervous system function. In this regard, investigators developed several drugs targeting the brain reward system for drug dependence therapy. However, no positive results obtain...
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ژورنال
عنوان ژورنال: Journal of Range Management
سال: 1991
ISSN: 0022-409X
DOI: 10.2307/4003044