scholarly journals Land Damage Mapping and detailed Liquefaction Potential Analysis for the Epicentral Region of 2017 Pohang Mw 5.4 Earthquake, South Korea: An Attempt towards Sustainable Land Use Planning

2020 ◽  
Author(s):  
Sambit Prasanajit Naik ◽  
Ohsang Gwon ◽  
Young-Seog Kim
Keyword(s):  
Land Use ◽  
South Korea ◽  
Land Use Planning ◽  
Sustainable Land Use ◽  
Liquefaction Potential ◽  
Potential Analysis ◽  
Damage Mapping ◽  
Epicentral Region

scholarly journals Land Damage Mapping and Liquefaction Potential Analysis of Soils from the Epicentral Region of 2017 Pohang Mw 5.4 Earthquake, South Korea

2020 ◽  
Vol 12 (3) ◽  
pp. 1234 ◽  
Author(s):  
Sambit Prasanajit Naik ◽  
Ohsang Gwon ◽  
Kiwoong Park ◽  
Young-Seog Kim
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Sustainable Land Use ◽  
Hazard Map ◽  
Damage Classification ◽  
Liquefaction Potential ◽  
Epicentral Area ◽  
Potential Analysis ◽  
Liquefaction Hazard ◽  
Liquefaction Analysis

Studies on earthquake-induced liquefaction and identification of source unit for causing liquefaction have been a major concern in sustainable land use development especially in low to moderate seismic areas. During the 2017 Mw 5.4 Pohang earthquake, widespread liquefaction was reported around the Heunghae basin, which was the first ever reported case of liquefaction in the modern seismic history of Korea. The epicentral area is one of the major industrial hubs along the SE Korean Peninsula with no detailed liquefaction hazard map. The purpose of this study was to determine the land damage classification on the basis of surface manifestation of liquefaction features and carry out detailed liquefaction potential analysis to delineate the depth of liquefiable soil. This will eventually support developing a liquefaction hazard zonation map and sustainable development of infrastructure to minimize earthquake damages. In this present study, the southern part of the Heunghae basin, which has more field evidences of liquefaction than the northern part, was taken for detailed liquefaction analysis. From the detailed analysis, it was observed that the soils from 1.5 to 15 m depth with the probability of liquefaction varying from 2 to 20 are prone to liquefaction. On the basis of land damage pattern, the epicentral area falls in orange to red zone, which means the necessity of further detailed liquefaction analysis. This study urges more detailed liquefaction zonation should be carried out for the epicentral area and liquefaction hazard should be included in the multi-hazard map in the future for the sustainable land use planning.

scholarly journals Grandma in the greenbelt : how the natural disposal of our dead could save Ontario's green space

2021 ◽  
Author(s):  
Courtney Elizabeth Heron-Monk
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Green Space ◽  
Value Added ◽  
Sustainable Land Use ◽  
Land Resource ◽  
Positive Outcomes ◽  
Environmental Challenges ◽  
A Value ◽  
Burial Grounds

Cemetery grounds and sustainable land use practice are rarely used in conjunction however natural burial grounds present opportunities to leverage the land use and environmental challenges associated with conventional cemeteries for the benefit of people and the environment. This paper explores land use planning challenges facing Ontario in planning for the disposal of our dead and the emergence of natural burial grounds as a sustainable alternative to conventional burial. This paper also explores how planning challenges related to planning for the disposal of our dead could be leveraged to produce positive outcomes; in particular the strengthening of Ontario's Greenbelt as a living landscape. This paper argues the Natural burial has potential to be a value added land resource and can mitigate a series of burial related land use challenges currently present in Ontario.

Insights, implications and challenges of studying local soil knowledge for sustainable land use: a critical review

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
Keyword(s):  
Land Use ◽  
Land Use Planning ◽  
Grey Literature ◽  
National Policy ◽  
Soil Management ◽  
Soil Classification ◽  
Developed Countries ◽  
Research Area ◽  
Sustainable Land Use ◽  
Local Soil

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).

scholarly journals Assessment of the risk of soil erosion using RUSLE method and SWAT model at the M’dez Watershed, Middle Atlas, Morocco

2020 ◽  
Vol 150 ◽  
pp. 03014 ◽  
Author(s):  
M’hamed Boufala ◽  
Abdellah El Hmaidf ◽  
Khalid Chadli ◽  
Ali Essahlaoui ◽  
Abdelhadi El Ouali ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Land Use Planning ◽  
Swat Model ◽  
Sustainable Land Use ◽  
Rusle Model ◽  
Mediterranean Countries ◽  
Dam Reservoirs ◽  
Middle Atlas ◽  
Soil Losses

The preservation of soil resources is a primary global concern and a permanent challenge for all Mediterranean countries. In Morocco, the capacity of dam reservoirs continues to decline from one year to the next due to the rate of siltation, mainly due to the phenomenon of water erosion. Indeed, the origins of this erosion are generally related to land use planning, deforestation, agricultural practices and low vegetation cover. However, it is imperative to quantify soil erosion and its spatial distribution to achieve sustainable land use and governance of this resource. The SWAT hydro-agricultural model and the integrated RUSLE model were used to assess soil losses and characterize the degraded areas of the M’dez watershed, located in the upper Sebou, north of the Middle Atlas, and extend on an area of 3350 km2. The results obtained during this work show that the average soil losses estimated by the two models are consistent. For the SWAT model, the specific degradation of the watershed is estimated at 3.95 t/ha/year, whereas for the RUSLE model, the average loss of the basin is estimated at 2.94 t/ha/year). However, the use of these two models (SWAT and RUSLE), for the assessment and characterization of degraded areas at the level of Moroccan watersheds, has become a much sought-after approach for good soil conservation management.

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