A method for assessing available phosphorus content in arable topsoils over large spatial scales
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چکیده
منابع مشابه
A GIS/simulation framework for assessing change in water yield over large spatial scales.
Recent legislation to initiate vegetation management in the Central Sierra hydrologic region of California includes a focus on corresponding changes in water yield. This served as the impetus for developing a combined geographic information system (GIS) and simulation assessment framework. Using the existing vegetation density condition, together with proposed rules for thinning to reduce fire ...
متن کاملA GIS/Simulation Framework for Assessing Change in Water Yield over Large Spatial Scales (Short title: Assessing Change in Water Yield)
Recent legislation to,initiate vegetation management in the Central Sierra hydrologic region of California includes a focus on corresponding changes in water yield. This served as the impetus for developing a combined geographic information system (GIS) and simulation assessment framework. Using the existing vegetation density condition, together with proposed rules for thinning to reduce fire ...
متن کاملeffect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow
چکیده ندارد.
15 صفحه اولInfluence of remediation in a mine-impacted river: metal trends over large spatial and temporal scales.
The effectiveness of mine-waste remediation at the Clark Fork River Superfund site in western Montana, USA, was examined by monitoring metal concentrations in resident biota (caddisfly, Hydropsyche spp.) and bed sediment over a 19-year period. Remediation activities began in 1990 and are ongoing. In the upper 45 km, reduced Cu and Cd concentrations at some sites were coincident with remediation...
متن کاملSpatial Variability of Available Nutrients and Soil Carbon under Arable Cropping in Canterbury
Soil properties can vary spatially at a paddock to farm scale due to differences in topography, parent material, vegetation or land management. The objective of this study was to quantify the spatial variability of available nutrients and organic matter within a 10.4 ha paddock (predominantly Templeton silt loam; flat topography) at Lincoln that had a long-term history of arable cropping. Sampl...
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ژورنال
عنوان ژورنال: Agronomy for Sustainable Development
سال: 2008
ISSN: 1774-0746,1773-0155
DOI: 10.1051/agro:2008046