&lt;title&gt;Use of LANDSAT-7 ETM+ with ancillary data for soil salinity mapping in northeast Thailand&lt;/title&gt;

Katawatin, Roengsak; Kotrapat, Wilaiwan

doi:10.1117/12.621889

Cited by 15 publications

(13 citation statements)

References 4 publications

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“…Their results indicated that the use of Landsat TM imagery effectively identified bare soils that were characterized by high spectral reflectance due to a high salt content on the surface, and the approach of integrating DTA with remote sensing data was more accurate and effective compared to using remote sensing analysis alone. Many researchers, including Katawatin and Kotrapat [52], Mehrjardi [53] and Yu et al [54] have investigated the utility and effectiveness of ETM+ data for soil salinity mapping and monitoring. For example, in Thailand, Katawatin and Kotrapat [52] investigated the use of Landsat-7 ETM+ with different combinations of three sources of ancillary data (topography, geology, and underground water quality) for soil salinity mapping.…”

Section: Multispectral Satellite Sensors For Mapping and Monitoring Smentioning

confidence: 99%

“…Many researchers, including Katawatin and Kotrapat [52], Mehrjardi [53] and Yu et al [54] have investigated the utility and effectiveness of ETM+ data for soil salinity mapping and monitoring. For example, in Thailand, Katawatin and Kotrapat [52] investigated the use of Landsat-7 ETM+ with different combinations of three sources of ancillary data (topography, geology, and underground water quality) for soil salinity mapping. A maximum likelihood classification method was employed in this study.…”

Section: Multispectral Satellite Sensors For Mapping and Monitoring Smentioning

confidence: 99%

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Soil Salinity Mapping and Monitoring in Arid and Semi-Arid Regions Using Remote Sensing Technology: A Review

Allbed¹,

Kumar²

2013

ARS

299

159

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Soil salinity is a serious environmental problem especially in arid and semiarid areas. It either occurs naturally or is human-induced. High levels of soil salinity negatively affect crop growth and productivity leading land degradation ultimately. Thus, it is important to monitor and map soil salinity at an early stage to enact effective soil reclamation program that helps lessen or prevent future increase in soil salinity. Remote sensing has outperformed the traditional method for assessing soil salinity offering more informative and professional rapid assessment techniques for monitoring and mapping soil salinity. Soil salinity can be identified from remote sensing data obtained by different sensors by way of direct indicators that refer to salt features that are visible at the soil surface as well as indirect indicators such as the presence of halophytic plant and assessing the performance level of salt-tolerant crops. The purposes of this paper are to 1) discuss some soil salinity indicators; 2) review the satellite sensors and methods used for remote monitoring, detecting and mapping of soil salinity, particularly in arid and semi-arid regions; 3) review various spectral vegetation and salinity indices that have been developed and proposed for soil salinity detection and mapping, with an emphasis on soil salinity mapping and assessment in arid and semi-arid regions; and 4) highlight the most important issues limiting the use of remote sensing for soil salinity mapping, particularly in arid and semi-arid regions.

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Section: Multispectral Satellite Sensors For Mapping and Monitoring Smentioning

confidence: 99%

Section: Multispectral Satellite Sensors For Mapping and Monitoring Smentioning

confidence: 99%

Soil Salinity Mapping and Monitoring in Arid and Semi-Arid Regions Using Remote Sensing Technology: A Review

Allbed¹,

Kumar²

2013

ARS

299

159

View full text Add to dashboard Cite

show abstract

“…Their results indicated that the use of Landsat TM imagery effectively identified bare soils that were characterized by high spectral reflectance due to a high salt content on the surface, and the approach of integrating DTA with remote sensing data was more accurate and effective compared to using remote sensing analysis alone. Katawatin and Kotrapat (2004) investigated the utility and effectiveness of Landsat-7 ETM+ data with different combinations of three sources of ancillary data (topography, geology, and underground water quality) for soil salinity mapping and monitoring. Their results showed that the use of Landsat ETM+ data bands 4, 5 and 7 yielded the most accurate soil salinity map, with 83.6% overall accuracy.…”

Section: Introductionmentioning

confidence: 99%

Change Detection of Land Cover and Salt Affected Soils at Siwa Oasis, Egypt

2017

Alexandria Science Exchange Journal: An International Quarterly

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Constant and accurate change detection of land cover/land use features is highly significant to interpret the correlation between human activities and natural phenomena in order to make better decisions and for investigating the processes and patterns of landscape changes over time and the impact of these changes on sustainable development. Soil salinization is a major problem affecting productivity of irrigated lands. Managing salinity to minimize environmental impact is a prerequisite for sustainable irrigated agriculture. The current study aims at detecting, classifying and mapping the current status for land cover types, salt affected soils and their changes in quantity that have taken place in Siwa Oasis during the period from 1987 to 2017, based on satellite imagery data, GIS facilities, statistical analysis, ground truth and laboratory analysis.An approach of multi-temporal mid resolution satellite images of TM 1987, and OLI 8 2017 combined with visual interpretation, supervised classification and new remote sensing indices namely NDVI to enhance accuracy of land cover classification was used. The study employed normal image classification, and developing model from ECe vs NDSI to produce maps for salt affected soils during the period under study.Results showed that the study area has different land cover / land use units; i.e. Salt marches, Sabkha, Cropland, Grassland, Bare Land, Urban, Lakes, Sand dunes, and Hills. During the study period, a very severe land cover change has taken place as a result of mismanagement of land resources. Change detection at the study area explains the rapid increase of saline lakes and salt marshes, and the consequent hazards to the cultivated lands, roads and archeological sites and urban areas over the last three decades. These changes in land cover led to land degradation and water logging in many parts of the study area. In 1987, very slightly saline soil area was the largest in extent 34.1% of the total area whereas strongly saline, slightly saline and moderately saline soils covered 27.0%, 17.4% and 17.1%, respectively, of the total area. In 2017, strongly saline area increased as compared to 1987 and contributed for 39.1% of the total area, while very slightly, slightly saline and, moderately saline areas represented 18.9% and 13.2% and 14.9% respectively of the total area. Most of the salt affected areas were on shallow water table.The results indicate that long-term irrigation activities would affect agricultural potentiality of the area in the future. RS, GIS, NDVI and NDSI tools are efficient and feasible for detecting land cover/land use and salt affected areas from satellite images.

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“…They found that there was a significant relationship between EC values and reflectance in Landsat bands 1, 2, 3 and 4. Katawatin and Kotrapat (2005), Mehrjardi et al (2008) and Yu et al (2010) have investigated the utility and effectiveness of ETM+ data for soil salinity mapping and monitoring. Katawatin and Kotrapat (2005) investigated the use of Landsat-7 ETM+ with different combinations of three sources of ancillary data for soil salinity mapping.…”

Section: Resultsmentioning

confidence: 99%

Application of remote sensing indices for mapping salt- affected areas by using field data methods

Saghafi

2017

Int. j. adv. appl. sci.

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Salinity is one of the oldest and most important environmental problems. Salinization is defined as presence of excessive salts on the top layer of the soil, resulting in deterioration of its chemical and physical properties. This is a form of land degradation turning into a major cause of low agricultural productivity in the South Khorasan province, Iran. The criteria defining saltaffected areas are based on electrical conductivity (EC) values. Kaji Playa is an endorheic basin that located in a distance of 190 km from the south of Birjand city in the South Khorasan province, Iran. The salt affected soils of Kaji Playa drainage basin cover approximately 39% of the study area and the EC values change from 4.2 dS.m-1 to 245 dS.m-1 (decisiemens per meter). Salinity Mapping is an expensive process, and a multi-scale strategy is essential to achieve a rapid and effective assessment of its extent and severity. Advantages of using remote sensing technology include saving time, wide coverage are faster than ground methods and facilitate long term monitoring. In this paper, we offered a project, which monitors soil salinity conditions in the study area using fieldwork, soil sample analysis, and a multi-temporal analysis of Landsat ETM+ data. The fieldwork was done to measure the soil salinity and gather ground truth for image classification. The alternative methodology of this study is based on the interpretation and calculation of salinity index from satellite data. The paper main aim included mapping and monitoring of salinity conditions for environmental management at basin level. According to the results, the soil salinity map produced by satellite index of NDSI (Normalized Difference Salinity Index) had an overall accuracy of 84% and Kappa index of 67%, indicating an acceptable accuracy for this classification.

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<title>Use of LANDSAT-7 ETM+ with ancillary data for soil salinity mapping in northeast Thailand</title>

Cited by 15 publications

References 4 publications

Soil Salinity Mapping and Monitoring in Arid and Semi-Arid Regions Using Remote Sensing Technology: A Review

Soil Salinity Mapping and Monitoring in Arid and Semi-Arid Regions Using Remote Sensing Technology: A Review

Change Detection of Land Cover and Salt Affected Soils at Siwa Oasis, Egypt

Application of remote sensing indices for mapping salt- affected areas by using field data methods

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