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soilmap, etc ; case studies; landscapes; soil; Wisconsin; Show all 5 Subjects
Abstract:
... Over the past decades, conventional soil maps of various scales have been produced and become available in digital form. Efforts have been made to update these maps through various data mining methods to provide more detailed and precise information on soil spatial patterns. Key questions that remain unclear are: (1) How does the accuracy of legacy soil maps impact the update results; (2) Is the a ...
soilmap, etc ; databases; georeferencing; land; soil; soil organic carbon; China; Show all 7 Subjects
Abstract:
... Digital soil maps of different scales have been widely used in the estimates of soil organic carbon (SOC). However, exactly how the scale of the soil map impacts SOC dynamics and the key factors influencing SOC estimations during the map generalization process have rarely been assessed. In this research, a newly available soil database of Zhejiang Province in southeastern China, which contains 215 ...
soilmap, etc ; catenas; data quality; databases; soil profiles; soil properties; Southern Africa; Show all 7 Subjects
Abstract:
... Earth-systems modelling of the critical zone often require soil maps that represent in-field conditions. Some developing regions, such as southern Africa, do not have detailed soil data for all areas and are often reliant on data from global soil maps and data sets. This raises the question of global and regional soil map and soil data accuracy at local levels. Although previous studies have indic ...
soilmap, etc ; Russia; agroecology; case studies; computer software; genetic similarity; morphometry; prediction; topography; Show all 9 Subjects
Abstract:
... Digital mapping was applied for a key site located at the Southern Cis-Ural region near Ufa city (the Republic of Bashkortostan, Russia). The digital soil map (DSM) was created using the open-source GIS software packages and compared to a conventional (CSM) one. As input parameters, we used standard morphometric values of the topography and field descriptions of soils, including the authors’ data. ...
soilmap, etc ; information systems; prediction; soil; soil surveys; topography; uncertainty; vegetation; British Columbia; Show all 9 Subjects
Abstract:
... Although British Columbia (BC), Canada, has a rich history of producing conventional soil maps (CSMs) between 1925 and 2000, the province still lacks a detailed soil map with a comprehensive coverage due to the cost and time required to develop such a product. This study builds on previous digital soil mapping (DSM) research in BC and develops provincial-scale maps. Soil taxonomic classes (e.g., g ...
soilmap, etc ; data collection; landscapes; soil water; stream flow; watershed management; watersheds; South Africa; Show all 8 Subjects
Abstract:
... Although soils form an integral part of landscape hydrological processes, the importance of soil information in hydrological modelling is often neglected. This study investigated the impact of soil information on streamflow modelling accuracy and hydrological process representation. Two different levels of soil information were compared to long-term streamflow in the upper Goukou catchment (230 km ...
soilmap, etc ; analysis of variance; data collection; databases; forests; radioactivity; soil; surveys; terrestrial radiation; Belgium; Show all 10 Subjects
Abstract:
... With several databases available, including two sets of in situ measurements of the ambient gamma dose rate and an airborne survey of K, Th, U in soil, Belgium is a favourable case for exploring the mapping methodology for terrestrial radiation. The first step is the harmonization of the different data sets, taking in situ measurements with an ion chamber as the reference. Corrections are necessar ...
soilmap, etc ; Landsat; basins; data collection; digital elevation models; prioritization; rain; soil erosion; subwatersheds; Ethiopia; Show all 10 Subjects
Abstract:
... Soil erosion and the subsequent sedimentation are the major problem in Ethiopia. We assessed the impact of rainfall-induced soil erosion and prioritize the sub-watersheds using RUSLE and SYI models. We procured mean annual precipitation, Abay Basin soil map, Digital Elevation Model (DEM) and LANDSAT 8 OLI/TIRS, 2017 datasets. Results show that annual estimated soil loss was ≤270 and ≤120 t ha⁻¹ yr ...
soilmap, etc ; case studies; climate; land use; models; organic carbon; prediction; soil properties; topsoil; France; Show all 10 Subjects
Abstract:
... Understanding the spatial variation of soil properties is central to many sub-disciplines of soil science. Commonly in soil mapping studies, a soil map is constructed through prediction by a statistical or non-statistical model calibrated with measured values of the soil property and environmental covariates of which maps are available. In recent years, the field has gradually shifted attention to ...
soilmap, etc ; Haplocalcids; Torrerts; Torrifluvents; Torriorthents; Torripsamments; gravel; models; regression analysis; soil taxonomy; surveys; topsoil; Show all 12 Subjects
Abstract:
... Present paper is an initial attempt to study chemical and hyperspectral characteristics of topsoil of different soil taxonomic units in El-Fayoum depression. Archival data, field survey, soil profiles sampling and analyses, hyperspectral data assessment and spectral indices applications were integrated with statistical investigations to achieve the aim of the present study. Soil map of El-Fayoum s ...
soilmap, etc ; evaporation; geometry; hydraulic conductivity; land evaluation; runoff; soil profiles; subsoil; texture; topsoil; transpiration; Netherlands; Show all 12 Subjects
Abstract:
... Soils and their properties play an important role in land evaluation studies. Often such studies focus on larger scales ranging from watersheds up to the national scale or even larger. Soil properties are often known at smaller scales, sometimes at the level of individual soil samples. The aim of this study is to show how point information on soil hydraulic properties, i.e., water retention and hy ...
soilmap, etc ; Internet; agricultural research; landscapes; research and development; soil; soil surveys; stakeholders; texture; vegetation; Zambia; Show all 11 Subjects
Abstract:
... Soil information is essential for agricultural research and development. In developing countries like Zambia, the availability of soil information is limited by the cost of new soil surveys. Legacy soil information could be useful to fill this gap. This study evaluated the availability of legacy soil information in Southern and Eastern Provinces of Zambia. We also examined the survey scales, legen ...
Douglas Jeffrey Goodwin; Daniel A. Kane; Kundan Dhakal; Kristofer R. Covey; Charles Bettigole; Juliana Hanle; J. Alfonso Ortega-S.; Humberto L. Perotto-Baldivieso; William E. Fox; Douglas R. Tolleson
soilmap, etc ; climate change; inventories; landscapes; models; near-infrared spectroscopy; soil; soil organic carbon; Oklahoma; Texas; Show all 10 Subjects
Abstract:
... Soil organic carbon influences several landscape ecological processes, and soils are becoming recognized as a mechanism to mitigate the negative impacts of climate change. There is a need to define methods and technologies for addressing soils’ spatial variability as well as the time and cost of sampling soil organic carbon (SOC). Visible and near-infrared spectroscopy have been suggested as a sam ...
soilmap, etc ; Internet; basins; geographic information systems; humans; land evaluation; soil; soil conservation; soil erosion; streams; topography; Show all 11 Subjects
Abstract:
... Erosion is seen as a major productivity problem in the world. Unplanned agricultural practices caused by human activities initiate the soil erosion process. Especially in sloping areas, agricultural activities without soil conservation measures accelerate this process. This study prepared land use planning (LUP) scenarios to reduce soil losses in the Mikail Stream Micro-Basin, which has an erosion ...
soilmap, etc ; case studies; expert opinion; fuzzy logic; soil; soil parent materials; soil surveys; soil taxonomy; China; Show all 9 Subjects
Abstract:
... The accuracy of digital soil maps (DSMs) is influenced by the quality of the input data. The application of legacy data obtained from past soil surveys was considered a potential method to improve DSM input data. However, changes in soil classification systems have occurred in many countries, and legacy data are therefore not directly applicable in the generation of the latest DSMs. This research ...
soilmap, etc ; Landsat; algorithms; digital elevation models; environmental protection; landscapes; radar; soil water; spatial data; topography; wavelet; China; Show all 12 Subjects
Abstract:
... Detailed soil maps are essential for effective agricultural practices and environmental protection. Yet, despite the increasing accuracy of digital soil mapping (DSM) in recent years, generating regional-scale, high-accuracy soil maps remains a challenging task. Our study objective was to propose a new DSM method based on temporal-spatial-spectral (TSS) data and to compare the DSM result with a le ...
soilmap, etc ; Acrisols; Alisols; Lixisols; Luvisols; World Reference Base for Soil Resources; base saturation; clay; databases; karsts; Slovenia; Show all 11 Subjects
Abstract:
... The aim of our study was to clarify the use of the term “acric” in the Slovenian soil classification and its relation to the Acrisols of the World reference base for soil resources. A comprehensive review of Yugoslavian and Slovenian soil literature from 1960 to the present revealed that the term “acric” was first introduced into the classification of Yugoslav soils in 1973, based on FAO Legend (1 ...
Kingsley John; Yassine Bouslihim; Isong Abraham Isong; Lahcen Hssaini; Rachid Razouk; Ndiye M. Kebonye; Prince C. Agyeman; Vit Penížek; Tereza Zádorová
soilmap, etc ; autocorrelation; decision making; digital elevation models; kriging; landscapes; phosphorus; potassium; soil organic matter; soil pH; vegetation; Morocco; Show all 12 Subjects
Abstract:
... BACKGROUND: Mapping of soil nutrients using different covariates was carried out in northern Morocco. This study was undertaken in response to the region's urgent requirement for an updated soil map. It aimed to test various covariates combinations for predicting the variability in soil properties using ordinary kriging and kriging with external drift. METHODS: A total of 1819 soil samples were co ...
soilmap, etc ; Bayesian theory; computer software; drainage; groundwater; lithology; rain; resource management; urban areas; water management; water supply; India; Show all 12 Subjects
Abstract:
... Groundwater resource management in the urban area is one of the important aspects because of growing population demand and having inadequate water supply. So, proper information is needed to manage the future urban planning for such kinds of areas. This study emphasizes groundwater potentiality zone (GPZ) assessment in the Asansol urban agglomeration (AUA) region, West Bengal, India. For this purp ...
soilmap, etc ; agricultural research; biodiversity; climate change; evolution; farms; food security; land degradation; landscapes; prediction; spectral analysis; sustainable land management; Show all 12 Subjects
Abstract:
... Detailed and accurate spatial soil information is important to address the issue of land degradation, climate change, biodiversity, and food security. Conventional soil mapping techniques are expensive and time consuming. So, rapid, reliable and economical techniques are required to map the soil properties over the landscape. Digital soil mapping offers a ray of light in this regard which can prod ...