scholarly journals Soil properties characterization for land-use planning and soil management in watersheds under family farming

Author(s):  
José Miguel Reichert ◽  
Paulo Ivonir Gubiani ◽  
Danilo Rheinheimer dos Santos ◽  
Dalvan José Reinert ◽  
Celso Aita ◽  
...  
Soil Research ◽  
2020 ◽  
Vol 58 (3) ◽  
pp. 219 ◽  
Author(s):  
Ha T. N. Huynh ◽  
Lisa A. Lobry de Bruyn ◽  
Brian R. Wilson ◽  
Oliver G. G. Knox

Local soil knowledge (LSK) has been recognised for its importance in sustainable soil management and agroecosystems. This paper examines peer-reviewed articles and grey literature documents on LSK during 2003–2018. Research continues to be geographically focused on developing countries, but often in collaboration with researchers from developed countries. There were five key research themes: soil classification and agreement between local and scientific soil knowledge (Theme 1), value of LSK for soil management and decision-making (Theme 2), scientific approach to the incorporation of LSK (Theme 3), application of LSK for identification of and solutions to soil problems (Theme 4) and factors influencing soil knowledge development (Theme 5). Although Theme 1 continued to be a prevalent research area, confirming the importance of visible and topsoil characteristics identified by farmers, examining subsurface soil properties has garnered less research. For LSK to be thoroughly documented requires support by a pluralistic scientific assessment and greater incorporation of social science methodologies. An overarching finding from Themes 2–4 was the importance of designing national programs that incorporate LSK derived from local people and other stakeholders (e.g. scientists and policymakers) to conserve soils. Local soil maps, using LSK terminology, could broaden the appeal and use of maps by local stakeholders to support sustainable land-use planning from the field to national policy-making processes. Finally, cultural and political aspects, known to influence LSK, should be given greater consideration in further research to sustain and develop this knowledge (Theme 5).


2015 ◽  
Vol 39 (6) ◽  
pp. 1755-1763 ◽  
Author(s):  
James Ribeiro de Azevedo ◽  
Célia Regina Paes Bueno ◽  
Gener Tadeu Pereira

ABSTRACT The study of soil chemical and physical properties variability is important for suitable management practices. The aim of this study was to evaluate the spatial variability of soil properties in the Malhada do Meio settlement to subsidize soil use planning. The settlement is located in Chapadinha, MA, Brazil, and has an area of 630.86 ha. The vegetation is seasonal submontane deciduous forest and steppe savanna. The geology is formed of sandstones and siltstones of theItapecuru Formation and by colluvial and alluvial deposits. The relief consists of hills with rounded and flat tops with an average altitude of 67 m, and frequently covered over by ferruginous duricrusts. A total of 183 georeferenced soil samples were collected at the depth of 0.00-0.20 m inPlintossolos, Neossolo andGleissolo. The following chemical variables were analyzed: pH(CaCl2), H+Al, Al, SB, V, CEC, P, K, OM, Ca, Mg, SiO2, Al2O3, and Fe2O3; along with particle size variables: clay, silt, and sand. Descriptive statistical and geostatistical analyses were carried out. The coefficient of variation (CV) was high for most of the variables, with the exception of pH with a low CV, and of sand with a medium CV. The models fitted to the experimental semivariograms of these variables were the exponential and the spherical. The range values were from 999 m to 3,690 m. For the variables pH(CaCl2), SB, and clay, there are three specific areas for land use planning. The central part of the area (zone III), where thePlintossolos Pétricos and Neossolos Flúvicos occur, is the most suitable for crops due to higher macronutrient content, organic matter and pH. Zones I and II are indicated for environmental preservation.


2017 ◽  
Vol 10 (2) ◽  
pp. 431-448 ◽  
Author(s):  
Jay Krishna Thakur ◽  
Kapil Khanal ◽  
Kabita Poudyal

Abstract Land use and land cover practices play a crucial role in balancing ecosystems and maintaining water supply services, including watersheds. The main objective of the current research is to assess the land cover change (LCC) and its specific influence on water runoff in the catchment and to study specific catchment characteristics such as LCCs through the years, soil properties, and recommendations for potential vegetation. The research area is located in two main districts of Chitwan Annapurna Landscape (CHAL), in four watersheds. Soil organic carbon was measured using the dry combustion method, the land use classification was done using Geographic Information System (GIS) software and potential vegetation analysis was based on several criteria. The complex relationship between factors was evaluated to account for the effect of separate factors to determine the outcomes in the basin. The Lund–Potsdam–Jena model was used for the purpose of characterisation of the study. The clear trend of change was not observed; however, there are obvious connections between various parameters as slope, aspect, soil properties and water runoff occurring in the catchment. According to the results obtained, land use planning could consider the relationship within the catchment and factors such as soil type, peoples’ interests, etc., which are important within the catchment.


Author(s):  
N. G. Patil ◽  
S. K. Singh ◽  
G. P. Obi Reddy ◽  
A. Chaturvedi

Author(s):  
Isabela do Carmo Precci Lopes ◽  
Jasmine Alves Campos

Agriculture is fundamental for the development of humanity; however, it is necessary to adjust land use planning in order to reconcile agricultural activities with proper soil management practices, thus reducing the impact on the environment. The study aimed to evaluate the land use capacity of the Córrego Maria Comprida-MG sub-basin, located in the Caratinga and Rio Doce river basins. The support of the Geographic Information System (GIS) was used for the framing of the lands according to the system of the capacity of use. The Number of Exceeding Classes (NCE) was evaluated in order to identify conflicts between land use and current land use. It was verified that the sub-basin presents approximately 60% of its land in class VI of the capacity of use and that about half of the study area is being used above its capacity, occupied mainly by pastures. The results proved its importance for planning the rational use of land in the Maria Comprida stream sub-basin.


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