• Title/Summary/Keyword: Land Suitability

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Suitability Class Criteria for Red Pepper with Respect to Soil Morphology and Physical Properties (토양의 형태 및 물리적 특성을 고려한 고추재배 적지 기준 설정)

  • Jung, Sug-Jae;Park, Byeong-Sik;Jang, Gab-Sue;Hyun, Byung-Keun;Rim, Sang-Kyu
    • Korean Journal of Soil Science and Fertilizer
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    • v.37 no.5
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    • pp.336-340
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    • 2004
  • The objective of this study was to establish the decision criteria of land suitability for red pepper using soil morphological and physical properties. The investigation was carried out in Jechen, Goesan, Euiseong, Andong, Gochang and Pyongchang district in Korea. The obtained results showed that factors related to the decision criteria of the land suitability for red pepper cultivation were soil texture, soil drainage class, land slope, available soil depth and stone content. The criteria of the best suitable soil for red pepper was coarse loamy, well drainage class, C-slope (7-15%), 10-20% gravel content and available soil depth deeper than 100 cm. Also in the best suitable soil, hardpan was located below 100 cm from the soil surface. Outbreak rate of phytophthora blight occurred well in the soils with high clay content, poor drainage class, low land slope and low gravel content. Database determining the decision criteria of the land suitability for red pepper in Jinchen-gun was established by Arc info GIS tool.

Analysis on Alpine Agricultural Areas in Gangwon Province (강원도 고랭지 농업지대의 유형분석)

  • Kim, Ki-Sung;Choi, Ye-Hwan
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2003.10a
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    • pp.103-106
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    • 2003
  • A research was made to describe the characteristics of alpine agricultural areas in Hongcheon, Pyeongchang and Jeongsun municipalities that comprise large alpine belts. Analysis of current land-use status, pattern classification of agricultural areas, and land-use suitability evaluation were made to describe the characteristics using GIS.

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An Improved Method in Grid-based Land Suitability Assessment (격자형 토지적성평가방법의 개선방안 연구)

  • Kim Hag-Yeol;Ahn Jae-Sung
    • Spatial Information Research
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    • v.13 no.1 s.32
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    • pp.1-17
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    • 2005
  • This paper draws new guidelines on the current method in Land Suitability Assessment (LSA), enforced to identify potential of parcels .elated to agricultural productivity, preservable value, and economic viability. In order to make recommendations of current LSA methodology, this study analyzes the issues related to the parcel-based LSA and addresses its inappropriateness f3r incorporating characteristics of each parcel. Through case studies and sensitivity analyses using GIS, the results show that (1) the $10\times10m$ grid-based LSA is much better assessment method than parcel-based one, because it gives detailed informations on attributes of each parcel; (2) more than one-distance factor should be taken into account to calculate the appropriate potential measure; and (3) the characteristics of public facilities or urbanized areas including size, density, and land use should be incorporated into the attraction variable of ny Potential model. Finally future research areas are outlined.

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Suitability Analysis of Eco-corridor for Korean Water Deer (Hydropotes Inermis) based on GIS and Fuzzy Function - A Case Study of Chuncheon City - (GIS와 퍼지함수(Fuzzy function)를 활용한 고라니의 생태통로 적지분석 - 춘천시를 대상으로 -)

  • Lee, Do-Hyung;Kil, Sung-Ho;Jeon, Seong-Woo
    • Journal of KIBIM
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    • v.8 no.4
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    • pp.72-79
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    • 2018
  • Rapid developments around the world have resulted in urban expansion, habitat destruction, habitat fragmentation, and pollution problems, which are the main reasons for the decline in biological diversity. The United Nations warns that many animals and plants will die out in the near future if this continues. This study was performed to propose a map of eco-corridor suitability analysis of Korean water deer(Hydropotes Inermis) to enhance biodiversity in Chuncheon city. Eight factors affecting habitat suitability were elevation, aspect, slope, forest type, distance to the road, distance to the stream, land use and green connectivity. Previous study analysis on the mobility behaviour of the Korean water deer(Hydropotes Inermis) produced a habitat suitability map by determining the threshold and assigning a value between 0 and 1 depending on the habitat suitability using the fuzzy function. A method of analysis was proposed for a number of eco-corridor through comparative analysis of the data from the produced habitat suitability map and the road-kill point. The previous studies were focused on Backdudaegan region and national parks except for urban cities. The potential habitat map of Korean water deer could be helpful as a way to prevent habitat disconnection and increase species diversity in urban areas.

Improving the Slope Calculation Method for Evaluating the Feasibility of the Land Development (토지 개발 적정성 평가를 위한 경사도 계산 방법 개선)

  • Lee, Byoung Kil
    • Journal of Korean Society for Geospatial Information Science
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    • v.24 no.3
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    • pp.85-92
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    • 2016
  • Slope is one of the most important factor in land development permission standards. In guideline of "Land Suitability Assessment" or "Forest Land Conversion Standard", average slope can be measured using digital map and GIS for target area. Inputs in slope calculation are 1/5,000 digital map of NGII(National Geographic Information Institute) or digital information of Korea Land Information System. Many confusions occur in the field, as there is no standard for slope calculation and are lots of slope calculation methods using contour lines or DEM derived from them. Avoiding these confusions, this study was intended to propose a standardized method for slope calculation and a selection method for a suitable resolution. In this study, using DEM of optimum grid size according to the complexity of topography with finite difference method is suggested as improved slope calculation method, after comparing several representative slope calculation methods.

Land Suitability Assessment by Combining Classification Results by Climate and Soil Information Using the Most Limiting Characteristic Method in the Republic of Korea (기후 및 토양 정보에서 최대저해인자법을 이용한 재배적지 구분의 통합에 관한 연구)

  • Kim, Hojung;Shim, Kyomoon;Hyun, Byungkeun
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.18 no.3
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    • pp.127-134
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    • 2016
  • Land suitability assessment for apples and pears was conducted with soil and climate information in South Korea. In doing so, we intended to preserve land and increase the productivity by providing valuable information regarding where more suitable areas for apples or pears are located. We used soil classification driven by soil environmental information system developed by National Institute of Agricultural Science, RDA, and also used climate classification in digital agro-climate map database for which is made by National Institute of Horticultural and Herbal Science. We combined both soil and climate classification results using a most-limiting characteristic method. The combined results showed very similar patterns with the results by classification based on soil information. Such results seem to come from the fact that the classification results by soil relatively lower than those by climate information. The results by soil classification seem to be too downgraded and checking if the final classification ranges in soil are reasonably made is strongly required. Although the most limiting characteristic method had been used widely in land suitability assessment, adapting the method based on results by soil and climate can be influenced by one downgraded factor. Therefore, alternative ways should be carefully considered for increasing the accuracy.

An Empirical Research on Location Suitability Evaluation System for Public Rental Logistics Space (공공형 임대물류공간 입지적정성 평가체계에 관한 실증 연구)

  • Ahn, Jaeseong;Lee, Seungji;Kim, Taegyun;Lee, Hyeonjoo
    • Land and Housing Review
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    • v.11 no.2
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    • pp.15-24
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    • 2020
  • In recent years, market access is expected to become more important in logistics location selection. In addition, it is necessary to support logistics functions for small and medium-sized enterprises. In this study, we propose a location suitability evaluation system for public rental logistics spaces. The location selection and evaluation system of the public rental logistics space proposed in this study is composed of large (5), medium (10), and small (20) indicators. The 1st class were five factors: market factors, economic factors, transportation factors, site factors, policy and social factors, and the 2nd classifications per the 1st class, and the 3rd class for each 2nd class. After deriving the relative importance of each indicator through AHP for experts, it was verified by utilizing GIS analysis for virtual candidates in the metropolitan area. As a result of the trial application, it was evaluated that it could be applied with realistic results. In addition, it was confirmed that it is possible to apply evaluation indicators using spatial data constructed in Korea, and to use the evaluation indicators, it is necessary to perform various spatial analysis and processing tasks on raw data.

Suitability valuation of Underground Facility Construction Using GIS (GIS를 활용한 지하시설물 시공의 적정성 평가)

  • 김감래;이재기;임건혁
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2004.04a
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    • pp.465-469
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    • 2004
  • The purpose of this study is to evaluate suitability of Underground Facility Construction in great land development area. Because there are the construct of national integration information control system and the advance of information technique, the necessity that construct the UIS to manage the urban space systematically is enlarged. In the purpose that we prepare the base of underground facility management system by driving the step digitalizing facilities buried underground and protect urban safety accident, we introduce the GIS in land development area. This study proposes the improvement direction by examining the outcome through the driving method and the outcome analysis.

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Environmental Impact and Allowable Density Using the Rural Residential Density Matrix (주거밀도모형을 이용한 환경영향분석과 수용능력 산출)

  • Kim, Myungjin
    • Journal of Environmental Impact Assessment
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    • v.12 no.3
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    • pp.151-160
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    • 2003
  • Analysis of carrying capacity and site suitability by the systematic application of environmental information an provide a basis for implementing environmentally sensitive and sustainable resource development policies. Based on the availability of public services and environmental and site-specific constraints, a Rural Residential Density Matrix was applied in Santa Cruz County, California, USA to assess the development potential of rural land parcels since 1980. In one case, the Matrix was applied to calculate the allowable development density on a site in Lompico planned for use as a Buddhist retreat center. These calculations revealed higher environmental sensitivity and lower carrying capacity than projected in the proposed plan. Under the constraints of the county's minimum acreage policies and insufficient developable land, the developer cancelled the proposed plan. This example suggests that application of the Matrix at the concept development stage would increase the effectiveness of the prior environmental review and environmental impact assessment (EIA) system in Korea.

Simulation of Urban Expansion Causing Farmland Loss and Sprawl Phenomena with Cellular Automata Technology

  • Kim Dae Sik
    • Journal of The Korean Society of Agricultural Engineers
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    • v.46 no.7
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    • pp.23-32
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    • 2004
  • A spatial simulation model for rural and urban sprawl phenomena was developed with GIS and cellular automata techniques. The model finds out built-up areas invading toward rural areas required for development of existing urban area. Probability of land use change for optimizing the development area was determined using a land suitability analysis method interfaced with GIS methods, based on several criteria in terms of geographic and accessibility factors such as slope of land and distance from city center. Weighting values of the criteria were quantified by an analytic hierarchy process method. For model applicability test, the parameters of criteria were calibrated based on the changes in time series land use data of the test city for 1986, 1996, and 2000, which were classified by remote sensing techniques. Simulated and observed areas in land use maps for city shape of 1996 showed good similarities with each other through a morphology verification method. The model enabled us to evaluate the spatial expansion phenomena of cities considering boundary conditions, and also to simulate land use planning for rural areas in urban fringe.