• Title/Summary/Keyword: 적지

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Assessing Southern-type Garlic Suitability with regards to Soil and Temperature Conditions (기온과 토양요인을 고려한 난지형 마늘 재배적지 분석)

  • Kim, Yong-Wan;Jang, Min-Won;Hong, Suk-Young;Kim, Yi-Hyun
    • Korean Journal of Soil Science and Fertilizer
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    • v.45 no.2
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    • pp.266-271
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    • 2012
  • This study was carried out to evaluate the land suitability for southern-type garlic cultivation associated with both temperature and soil constraints. The suitability analysis was conducted with hourly temperature data from 2001 to 2010 at all fifty seven meteorological stations and the soil-based suitability map of garlic provided by Rural Development Administration. Firstly the temperature data were processed by the growth stages (germinating, bulbing, and winter vegetation season), and then were adopted to limit the irrelevant lands. Next, as a result of overlaying each soil and temperature suitability map, the total 274,339 ha of area was mapped as highly suitable or suitable for southern-type garlic cultivation and the top four of the largest classified si-guns were identified as Naju, Jeongeup, Gochang, and Jinju. On the other hand, the statistical records of KOSIS (KOrea Statistical Information Service) showed lower amount of cultivation area than the analyzed results in the major production sites, Goheung, Sinan, Haenam, and Muan. However, it should not be regarded as exceptional because farmer's preference might not correspond to potential land usability.

Mapping Species-Specific Optimal Plantation Sites Based on Environmental Variables in Namwon City, Korea (환경요인을 이용한 남원시의 적지적수도 제작)

  • Moon, Ga Hyun;Kim, Yong Suk;Lim, Joo Hoon;Shin, Man Yong
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.17 no.2
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    • pp.126-135
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    • 2015
  • This study was conducted to develop a large scale map of species-specific plantation sites based on selected environmental variables such as topography, soil, and climatic factors in Namwon city. Site index equations by tree species were first regressed to 27 environmental variables that could influence the productivity of forest sites using digital forest site maps, digital climate maps, and the 5th National Forest Inventory data. Site index equations by tree species were all evaluated to estimate site productivity using 4-5 environmental variables, and the models' reliability was confirmed based on evaluation statistics. The determination coefficients of site index equations by species ranged from 0.42 to 0.76. With the site index equations, the site conditions appropriate for productive sites by species were considered to assess spatial distribution of productive areas for each species. The final map for optimal plantation in Namwon city was produced based on both site index equations and site conditions appropriate for productive sites by each species using GIS technique. Field survey was conducted to evaluate the suitability of selected species on the map of species-specific plantation sites. Results showed that the plantation map provides relatively reasonable spatial distribution of productive areas for selected species. It was revealed, however, that the sites evaluated as 'not suitable' for any tree species should be revised and complemented with additional information, especially with the site conditions appropriate for productive sites by species of interest. The outcomes of this study are expected to provide information for making customized species-specific plantation maps.

Development of Assessment Model for the Optimal Site Prediction of Evergreen Broad-leaved Trees in Warm Temperate Zone according to Climate Change (기후변화에 따른 난대상록활엽수의 적지예측 평가 모델 개발)

  • Kang, Jin-Teak;Kim, Jeong-Woon;Kim, Cheol-Min
    • Journal of agriculture & life science
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    • v.46 no.3
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    • pp.47-58
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    • 2012
  • This study was carried out to develop assessment model for the optimal site prediction of Dendropanax morbifera, Evergreen broad-leaved trees in warm temperate zone according to climate change. It was created criterion for assessment model of the optimal site prediction by quantification method to possible analysis of quantitative and qualitative data, through study relationship between growth of tree and site environmental factors. A program of the optimal site prediction was developed using program version 3.2, an Avenue and Dialog Designer tool of ESRI as GIS(geographic information system) engine. Developed program applied to test accuracy of the optimal site prediction in study area of Wando, Jeollanam-do, having a various evergreen broad-leaved trees of warm temperate zone. In the results from analysis of the optimal site prediction on Dendropanax morbifera, the characteristics of optimal site were analyzed site environmental features with 401~500m of altitude, $15^{\circ}$ of slope, hillside of local topography, alluvium of deposit type, convex of slope type and south of aspect. The mapping area per grade of the optimal site prediction in the Dendropanax morbifera showed 1,487.2ha(25.4%) of class I, 1,020.3ha(17.4%) of class II, 2,231.8ha(38.2%) of class III and 1,110.5ha(19.0%) of class IV.

Analysis on dam operation effect and development of an function formula and automated model for estimating suitable site (댐의 운영효과 분석과 적지선정 함수식 및 자동화 모형 개발)

  • Choo, Taiho;Kim, Yoonku;Kim, Yeongsik;Yun, Gwanseon
    • Journal of Korea Water Resources Association
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    • v.52 no.3
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    • pp.187-194
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    • 2019
  • Intake ratio from river constitutes about 31% (8/26) that beings to "water stress country" as "Medium ~ High" with China, India, Italy, South Africa, etc. Therefore, the present study on a dam that is the most effective and direct for securing water resources has been performed. First of all, climate change scenarios were investigated and analyzed. RCP 4.5 and 8.5 with 12.5 km grid resolution presented in the IPCC (Intergovernmental Panel on Climate Change) 5th Assessment Report (AR5) were applied to study watershed using SWAT (Soil and Water Assessment Tool) and HEC-ResSim models that carried out co-operation. Based on the results of dam simulation, the reduction effects of floods and droughts were quantitatively presented. The procedures of dam projects of the USA, Japan and Korea were investigated. As a result, there are no estimating quantitative criteria, calculating methods or formulas. In the present study, therefore, indexes for selecting suitable dam site through literature investigation and analyzing dam watersheds were determined, Expert questionnaire for various indexes were performed. Based on the above mentioned investigation and expert questionnaire, a methodology assigning weight using AHP method were proposed. The function of suitable dam (FSDS) site was calibrated and verified for four medium-sized watersheds. Finally, automated model for suitable dam site was developed using FSDS and 'Model builder' of GIS tool.

A Study on Changes and Meanings of Seoul Boramae Park as a Park Created in Relocated Sites (이전적지 공원으로서 서울 보라매공원의 변화와 의미)

  • Seo, Young-Ai;Park, Hee-Soung;Gil, Jihye;Kim, Jung-Hwa;Lee, Sang Min;Choi, Hyeyoung
    • Journal of the Korean Institute of Landscape Architecture
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    • v.51 no.1
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    • pp.85-97
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    • 2023
  • Seoul Boramae Park was opened on May 5, 1986, after the Republic of Korea Air Force Academy relocated to Cheongju City in 1985. This study aims to examine the birth and evolution of Seoul Boramae Park and diagnose the park's value being transformed from the former site of the Air Force Academy. Policy reports and newspaper data were analyzed as a research method, focusing on Seoul public records. The study results are as follows. First, Seoul Boramae Park is a large-scale park created before the policy for parks on relocated sites we enacted. Second, Seoul Boramae Park has historical value as an urban park where memories and traces of the Air Force Academy overlap. Third, Seou Boramae Park contributed to regional change by promoting the public value of parks created on the relocated sites with an urban planning method. Seoul Boramae Park has implications for Korean landscape history as a case of securing large green areas in Seoul and presenting its function and roles as a park created on a relocated site.

GIS Applications for Optimum Site Selection of Public Facility (도시공공시설 적지선정을 위한 GIS 활용방안에 관한 연구)

  • Kim, Jae Ik;Chung, Hyun Wook
    • Journal of the Korean Association of Geographic Information Studies
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    • v.4 no.4
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    • pp.8-20
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    • 2001
  • The main purpose of this study is to introduce a new method of evaluation, and to suggest how to apply geographic information system for optimum public facility site selection. For this purpose, a new evaluation model for the site selection is developed. The model provides a simple and easy method of evaluation. It also allows differences among location factors through two step weighting procedures. For a better understanding of the model, solution procedures and visual figures are illustrated with the case of Dalseong-Gun's city hall location example.

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Groundwater resources potential mapping and its verification using GIS and remote sensing in Pohang city (GIS 및 원격탐사를 이용한 포항시 지하수 잠재가능성도 작성 및 검증)

  • Lee Sa-Ro;Kim Yong-Sung;Won Jong-Ho
    • Spatial Information Research
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    • v.14 no.1 s.36
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    • pp.115-128
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    • 2006
  • The aim of the study is to select and verify for development of groundwater resources using Geographic Information System(GIS). The water balance, land cover, forest, soil, elevation, slope, hydrogeology and lineament were analyzed. Using GIS, relationship between the data and groundwater yield data was analyzed and the groundwater resources potential map was made for selecting suitable area for groundwater development. Then groundwater resource potential map was verified using groundwater yield data. The verified result showed the good agreement between the potential map and groundwater yield data. The potential map can be used for groundwater management which is related to groundwater development.

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Selection of Infrastructure Sites Using Fuzzy AHP Techniques - For Yeongdong area - (Fuzzy AHP기법을 이용한 기반시설물 적지선정 - 영동지역을 대상으로 -)

  • Jeong, Jin Woo;Kang, Dong Ho;Choi, Jung Ryel;Kim, Byung Sik
    • Proceedings of the Korea Water Resources Association Conference
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    • 2022.05a
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    • pp.197-197
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    • 2022
  • 우리나라의 연 강수량은 약 70% 가 6월 ~ 9월 우기에 편중되어 있으며, 국내 약 65%가 산지로 이루어져 있어 강우의 유출이 한번에 일어나는 특성을 가지고 있다. 이러한 수문학적 특성으로 인하여 수자원 관리가 어려우며, 폭우, 폭염, 극한가뭄 등 기후변화 현상이 심화 되고 있는 것으로 나타나 수자원의 안정적인 관리에 대한 어려움이 있다. 특히, 강원도 영동지역을 포함한 동해안 지역에 위치하며, 경사가 가파른 태백산맥 동쪽은 하천 연장이 짧고 하천의 규모가 크지 않아 지속적인 수자원 부족 현상을 겪고 있다. 우리나라에서는 여름철 홍수기(6월 ~ 9월)에 집중된 강우와 일시에 유출되는 강우를 저장하기 위하여 저수지와 댐을 활용한 수자원 관리가 이루어지고 있다. 용수 부족으로 인한 주민 피해 및 사회적 갈등을 해결하기 위해서는 동해안 지역의 수자원 확보를 위한 구조적 대책 즉, 기존 댐 저수지 중심의 수자원 인프라를 지하댐을 중심으로 한 대용량 지하수 시설과 연계하여 활용하는 지하댐 적지 선정에 관한 연구를 시행하였으며, 적지선정에 대한 타당성을 위하여 전문가들의 설문조사를 통하여 Fuzzy AHP 기법을 적용하여 연구를 시행하였다.

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Utilizing Geographic Information System for Analyzing Land Use Suitability in a Urban Area - A Case Study of Kumi City - (도시지역의 토지이용 적지분석을 위한 지리정보시스템의 이용 - 구미시를 중심으로 -)

  • Lee, Jin-Duk;Lee, Hyun-Hwa;Kim, Sung-Gil
    • Journal of the Korean Association of Geographic Information Studies
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    • v.4 no.4
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    • pp.29-38
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    • 2001
  • This study addresses the topic of suitability analysis for helping with land use planning, which is one of important decision-making in urban planning, utilizing geographic information system. Covering the Kumi City before integrating with neighbor county, the site suitabilities for land uses, which are categorized into residential, commercial, industrial and green, were analyzed using the overlay method based upon the database constructed for this study. In the process, assessment criteria which include environmental factors and relative weights were determined and also the land use/cover map and NDVI map which were generated through satellite image processing were included in the database. The suitability maps by four function spaces were derived according to the grade and compared with the present land use state and the land use concept map of urban master plan. For more accurate analysis, practical developing plan, land price data, soil data should be included. Also if the demand estimation data by each land use had been added, the reliability of location allocation could have been raised.

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