Soil Conservation Service's National Soil Survey Staff Meets

Soil Horizons ◽  
1985 ◽  
Vol 26 (4) ◽  
pp. 34 ◽  
Author(s):  
William U. Reybold
Keyword(s):  
Soil Conservation ◽  
Soil Survey ◽  
Soil Survey Staff

scholarly journals Diferenciação e distribuição de solos, em diversos níveis categóricos, de duas áreas aparentemente homogêneas de oxissolo

Bragantia ◽  
1975 ◽  
Vol 34 (unico) ◽  
pp. 309-348 ◽  
Author(s):  
J. Bertoldo de Oliveira
Keyword(s):  
Soil Survey ◽  
Soil Survey Staff ◽  
De Se

Em duas áreas de oxissolo aparentemente homogêneas, com 18,5 ha (Estação Experimental de Limeira) e 16,5 ha (Estação Experimental de Ribeirão Preto) de superfície foi demarcada uma rede de prospecção com 50 metros de malha. Fez-se a descrição morfológica e foram coletados materiais das camadas 0 - 30 e 80 - 120 m em 74 pontos da área e em 66 da área-2. Uma série de análises foi efetuada a fim de se poder classificar o solo correspondente a cada ponto segundo a classificação elaborada pelo Soil Survey Staff, cartografar as áreas em vários níveis categóricos e verificar a homogeneidade das áreas, do ponto de vista taxonômico. Observou-se que, tanto em superfície como em profundidade, os solos apresentaram, nas duas áreas, pequena variação nas características morfológicas, não tendo se destacado, com exceção da textura, do contato petroférrico e da espessura verificados na área-2, nenhuma característica como diferenciadora de classe. Apenas com observações morfológicas é impraticável chegar-se ao nível de grande grupo, visto que a diferenciação dessa categoria na ordem Oxissolo fica na dependência da caracterização analítica do material e não foi possível, nas áreas de estudo, relacionar a morfologia com os dados analíticos. Podem-se considerar as categorias de família na area-1 e de subgrupo na área-2, como as mais adequadas ao nível de levantamento semidetalhado e na escala de publicação de 1:50.000.

scholarly journals Soil erosion and conservation in northern Europe

2003 ◽  
Vol 27 (3) ◽  
pp. 331-358
Author(s):  
Michael A. Fullen
Keyword(s):  
Best Management Practices ◽  
Soil Conservation ◽  
Management Practices ◽  
Land Development ◽  
Soil Survey ◽  
Northern Europe ◽  
Soil Conservation Service ◽  
Potential Contribution ◽  
Buffer Strips ◽  
The Public

Soil conservation policies are suggested at national, regional and local levels, including adoption and modification of several Australian, European and North American policies. The Australian Landcare system and programmes of the US Natural Resources Conservation Service (NRCS) are particularly informative. Several European initiatives are promising models, including the strategies of the Danish Land Development Service (Hedeselskabet) and the Icelandic Soil Conservation Service (Landsgraedsla Rikisins). The Erosienormeringsprojekt of South Limburg (The Netherlands) is a coordinated and integrated soil conservation project and seems a particularly useful model for future soil conservation in northern Europe. Several best management practices for soil conservation are identified. These include the promotion of soil conservation by a properly funded and relatively well known soil conservation service and full mapping, monitoring and costing of erosion risk by national soil survey organizations. A participatory approach to soil conservation should be adopted, involving farmers and interested members of the public, and there should be a ‘cost share’ partnership between government and farmers in funding conservation work on farms. Rational land-use policies need to be developed, such as the promotion of ‘set-aside’ on erodible soils, grass strips on arable slopes and buffer strips in riparian zones. Education programmes are necessary to actively inform the public on the importance of soil as a resource. These schemes should particularly encourage ‘land literacy’ among participants. It is imperative that the broader societal benefits of effective soil conservation are recognized, such as its potential contribution to habitat creation, biodiversity and carbon sequestration.

Soil Conservation and Soil Survey in India

Soil Science ◽  
1960 ◽  
Vol 90 (2) ◽  
pp. 146
Author(s):  
CHARLES E. KELLOGG
Keyword(s):  
Soil Conservation ◽  
Soil Survey

Soil-Survey Reports and Archaeological Investigations

1966 ◽  
Vol 31 (3Part1) ◽  
pp. 419-422 ◽  
Author(s):  
Roger T. Saucier
Keyword(s):  
Survey Data ◽  
Soil Conservation ◽  
Soil Survey ◽  
Topographic Maps ◽  
Soil Conservation Service ◽  
Aerial Photos

AbstractMost soil-survey reports published since about 1957 by the Soil Conservation Service portray the soils data on a series of photomap base sheets generally at a scale of 1:20,000. Since all or portions of many of the 203 counties for which the reports are available lack detailed topographic maps, the soil-survey reports help alleviate this deficiency and also provide an economical source of aerial photos for use in archaeological surveys. Moreover, the soil-survey data presented in the photomaps often provide valuable clues to the locations of sites and should not be overlooked in survey work.

scholarly journals Geospatial assessment of wetland soils for rice production in Ajibode using geospatial techniques

2021 ◽  
Vol 13 (1) ◽  
pp. 310-320
Author(s):  
Anthony Tobore ◽  
Bolarinwa Senjobi ◽  
Temitope Ogundiyi ◽  
Samuel Bamidele
Keyword(s):  
Rice Production ◽  
Soil Survey ◽  
Wetland Soils ◽  
Land Cover Changes ◽  
Base System ◽  
Geospatial Techniques ◽  
Reference Base ◽  
Grid Sampling ◽  
Soil Survey Staff ◽  
World Reference Base

Abstract Wetlands played an important role in human development and nature nutrient store for rice cultivation. Spatial techniques have gained importance in monitoring wetland changes. The study aimed to assess wetland soils for rice production using spatial techniques. The area was sample using stratified grid sampling. Nutrient availability and rice suitability were assessed in ArcGIS 10.6 environment. The soil was characterized into Eutric fluvaquent (Soil Survey Staff, 2010) and correlated as fluvisols in the World Reference Base system. The results of the land cover changes showed that built-up, waterbody, and farmland have increased by 39, 18, and 29%, respectively, and 13% decrease was observed in vegetation. The study concluded that soils of the studied area varied from marginally (75%), not suitable (20%), and permanently not suitable (5%) for rice production. Therefore, without proper assessment and management of these studied soils, rice production will continue to be futile.

scholarly journals Estudio de algunos procesos pedogenéticos en el valle de Ojos Negros, Baja California, México

2012 ◽  
pp. 53
Author(s):  
Francisco Raúl Venegas Cardoso ◽  
José López García
Keyword(s):  
Baja California ◽  
Soil Survey ◽  
Soil Survey Staff

El estudio sistemático de suelos en Baja California, México, ha sido pobremente desarrollado. Solamente se han encontrado algunos reportes en la literatura científica, realizados en el Desierto Central. El objetivo de este trabajo es estudiar los procesos pedogenéticos que han permitido el desarrollo de los suelos en el valle de Ojos Negros, Baja California, bajo un ambiente mediterráneo. Para el estudio se utilizó el método jerárquico propuesto por Zinck (1988). Se estableció un ambiente morfogenético de naturaleza deposicional que permitió separar cuatro paisajes; lomeríos piedemonte, planicie de nivel de base y valle fluvial, los que fueron subdivididos por relieve/modelado y por características litológicas y sus correspondientes unidades de suelos a nivel de Gran Grupo de acuerdo con el Soil Survey Staff (1992).Estos suelos se formaron bajo diferentes ambientes, materiales, condiciones climáticas, con periodos glaciares e interglaciares de sequía y humedad. Estos procesos se iniciaron desde el Plioceno y continúan en la actualidad, manifestándose en su pedogénesis. Algunos han desarrollado horizontes Bt rojos sobre esquistos y gneiss, (Rhodoxeralfs), otros desarrollados sobre detritos graníticos, presentan un pobre desarrollo (Xeropsamments); materiales graníticos con procesos coluvio-aluvial han formado suelos poligenéticos, horizontes C, con la presencia de horizontes Bt rojos (4CBt), arcilla heredada y hierro amorfo (Haploxeralfs). Algunos otros manifiestan influencia gley (Cegz1, Gley1 6/5GY, Fluvaquents).Los procesos de erosión, transporte y acumulación de materiales en las tierras bajas continúan a la fecha, asimismo, la presencia de un proceso relativamente reciente: materiales que están siendo redistribuidos por el viento y depositados sobre diques de metarriolita, provocado por las condiciones de sequía en toda la región.

scholarly journals Levantamiento de suelos del Municipio de Tuxpan Nayarit, México

1997 ◽  
Vol 1 (35) ◽  
Author(s):  
José I. Bojorquez Serrano ◽  
José López García
Keyword(s):  
Soil Survey ◽  
Soil Survey Staff

Se realizó un levantamiento de suelos semidetallado utilizando la metodología propuesta en 1974 por Elbersen et al., actualizada en 1986 por Villota y Forero y en 1993 por el Soil Survey Staff, mediante el análisis fisiográfico y fotointerpretación se delinearon las unidades de mapeo, mismas que fueron apoyadas con el conocimiento tradicional de los campesinos, la descripción de suelos se baso en Cuanalo (1990). Se describieron 35 perfiles, con un total de 140 muestras a las que se les practicó análisis físicos y químicos para clasificarlos taxonómicamente. Se determinó la disponibilidad de nutrimentos y se sugieren practicas generales de manejo para cada unidad de mapeo.

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