منابع مشابه
International Land Reclamation and Mine Drainage Conference and Third International Conference on the Abatement of Acidic Drainage
Mine drainage and mine reclamation are topics of major interest to the mining industry, federal and local governments, and the general public. This publication and its companion three volumes are the proceedings of a conference held in Pittsburgh, Pennsylvania, April 24-29, 1994. There were twelve sessions (69 papers) that dealt with mine drainage, including modeling, geochemistry, prediction, ...
متن کاملInternational Land Reclamation and Mine Drainage Conference and Third International Conference on the Abatement of Acidic Drainage
S . . . . . . . . . . . . . . . . . . . . . . . Mine Drainage abstracts, listed alphabetically by last name of first author. Page numbers are listed in Author Index at the back of this volume. AUTHOR INDEX . . . . . . . . . . . . . . . ,431433 A ac Bq bu cal cm cmol CPS "C d dS ft g gal P d P m h ha hL hp Hz in J K kcal kg kHz km kmt kN kPa kV L lb m M rnA me'l UNIT OF MEASURE ABBREVIATIONS USE...
متن کاملLand use changes detection and spatial distribution using digital and satellite data, case study: Farim drainage basin, Northern of Iran
Land use change may influence many natural phenomena and ecological processes, including runoff, soil erosion, sedimentation and soil conditions. Decreasing of forest area in the North of Iran is one of the critical problems in recent years. The aims of this study are to detect land use changes between 1967 to 2002 using satellite images of Land Sat 7 ETM+ (2002), aerial photos and digital topo...
متن کاملReclaiming salt-affected land through drainage in Haryana, India: a ®nancial analysis
The sustainability of irrigated agriculture in India is threatened by waterlogging, soil salinity, and alkalinity. To reverse declining agricultural productivity, a combination of surface and subsurface drainage, supplemented by improved irrigation management, has been identi®ed as the most appropriate strategy. But subsurface drainage for salinity control is costly. Therefore, its bene®ts in t...
متن کاملCompositional changes in the hydrophobic acids fraction of drainage water from different land management practices.
Dissolved organic matter (DOM) can play a key role in many environmental processes, including carbon cycling, nutrient transport and the fates of contaminants and of agrochemicals. Hydrophobic acids (Ho), the major components of the DOM, were recovered from the drainage waters from well-drained (WDS) and poorly-drained (PDS) Irish grassland soils in lysimeters, amended with N fertiliser (F) and...
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ژورنال
عنوان ژورنال: Nature
سال: 1922
ISSN: 0028-0836,1476-4687
DOI: 10.1038/110211c0