نتایج جستجو برای: pedodiversity
تعداد نتایج: 30 فیلتر نتایج به سال:
“Black soils” recently proposed by the FAO Global Soil Partnership, include fertile soils, characterized a thick, dark-colored soil horizon rich in organic matter. This study addressed concept of “black soils”, terms taxonomic relationship their corresponding types existing classifications. Similarity studies were based on calculation distances between selected groups with matter–enriched horiz...
Sustainable management of soil carbon (C) at the state level requires valuation C regulating ecosystem services (ES) and disservices (ED). The objective this study was to assess value ES from organic (SOC), inorganic (SIC), total (TSC) stocks, based on concept avoided social cost dioxide (CO2) emissions for South Carolina (SC) in United States America (U.S.A.) by order, depth (0–200 cm), region...
La Mancha (Central Spain) is one of the most extensive vineyard regions in world, and ‘Valdepeñas’ a representative Protected Denomination Origin (PDO) this region. However, what are their main soil types? kind horizons common? role geomorphological positions pedodiversity? After describing sampling 90 profiles area, Alfisols, Inceptisols Entisols were mainly identified Soil Taxonomy terms; oth...
The paper reviews a set of soil surveys carried out in Iran using a geopedologic approach for different surveying aims in different scales. Most of these studies have implemented a similar survey method including the following steps: delineation of landforms from air photos using geomorphic and soil-landscape relationships, field check of the delineations, sample areas inventory with soils clas...
Pedological maps in suitable scales are scarce most countries due to the high costs involved soil surveying. Therefore, methods for surveying and mapping must be developed overpass cartographic material obtention. In this sense, work aims at assessing a digital map (DSM) built by multispectral data extrapolation from source area target using ASTER time series modeling technique. For that proces...
Geotechnologies allow natural resources to be surveyed more quickly and cheaply than traditional methods. This paper aimed produce a digital soil map (DSM) based on Landsat time series data. The study area, located in the eastern part of Brazilian Federal District (Rio Preto hydrographic basin), comprises representative basin Central Brazil plateau terms pedodiversity. A spectral library was pr...
a r t i c l e i n f o In Soil Taxonomy three diagnostic subsurface horizons reflect clay enrichment: the argillic, kandic, and natric horizons. Clay illuviation is recognized in Soil Taxonomy at some level in 10 of the 12 orders, including the percent of the soil series in the USA contain taxonomically defined clay-enriched horizons. However, many other soils contain Bt horizons that do not qua...
Soil organic matter (OM) is a source of fertility for food provisioning and means climate mitigation. A high pedodiversity observed over very short distances due to both past present land use, such as in Western Africa (Northern Togo), makes this crucial issue. In particular, some small spots covered by sacred forests (forêts sacrées) cultural value area are extremely biodiverse, calcareous OM ...
The development of reclaimed mine soils is normally spatially heterogeneous, making the fine management and utilization mined lands difficult. Soil nutrient grading can provide a scientific basis for precise regulation soil nutrients, but few related studies are available in areas. This study aimed to quantify spatiotemporal variations grades under different land-use types area on Loess Plateau...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید