• Title/Summary/Keyword: Land-use map

Search Result 515, Processing Time 0.029 seconds

A Probability Mapping for Land Cover Change Prediction using CLUE Model (토지피복변화 예측을 위한 CLUE 모델의 확률지도 생성)

  • Oh, Yun-Gyeong;Choi, Jin-Yong;Bae, Seung-Jong;Yoo, Seung-Hwan;Lee, Sang-Hyun
    • Journal of Korean Society of Rural Planning
    • /
    • v.16 no.2
    • /
    • pp.47-55
    • /
    • 2010
  • Land cover and land use change data are important in many studies including climate change and hydrological studies. Although the various theories and models have been developed, it is difficult to identify the driving factors of the land use change because land use change is related to policy options and natural and socio-economic conditions. This study is to attempt to simulate the land cover change using the CLUE model based on a statistical analysis of land-use change. CLUE model has dynamic modeling tools from the competition among land use change in between driving force and land use, so that this model depends on statistical relations between land use change and driving factors. In this study, Yongin, Icheon and Anseong were selected for the study areas, and binary logistic regression and factor analysis were performed verifying with ROC curve. Land cover probability map was also prepared to compare with the land cover data and higher probability areas are well matched with the present land cover demonstrating CLUE model applicability.

A Study on a Parcel Presentation Technique of Cadastral Map for Enhancing Utilization of National Spatial Data Infrastructure (국가공간정보인프라 활용향상을 위한 지적도 일필지 표현기법 모형 연구)

  • Jang, Yong-Gu;Kim, Jong-Hoon
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.16 no.4
    • /
    • pp.3-10
    • /
    • 2008
  • Cadastral map is a public book that has been composed by continuous parcel having location, number, classification, boundary and an area based on Cadastral Law. A few years ago, cadastral map had been managed by form drawn on 2 dimension plane paper with 7 regular scales. Recently as computer systems are upgrading, cadastral map was able to have a chance to develope one step. Its type has been remade from raster to vector. In result, the cadastral map of vector type becomes to apply variously. Therefore, digital cadastral map has been ready a system to be use with multi-propose by KLIS(Korean Land Information System). In this research, it concretely want presentation of status using land more than original parcel on basic coordination cadastral map and KLIS(Korean Land Information System). The cadastral map is composed as parcel unit was applied by new presentation technique to "Model Research on One Parcel Presentation Technique for Land Status of Cadastral Map". The function of cadastral map on One Parcel Presentation Technique which is not only location relation of possession right and expression of states using land in 28 classifications demonstrated on the cadastral law but also used as foundation data of GIS construct business is developed by lines and classification of parcel to center around public sites of roads, rails, drains and rivers. especially, this research is composed of technique elevation and development of One Parcel Projection Technique of cadastral map in using object of roads among public sites.

  • PDF

Change of Land Use Pattern in Metropolitan Area of Seoul (수도권 지역의 토지 이용 변화)

  • 최운식
    • Journal of the Economic Geographical Society of Korea
    • /
    • v.1 no.2
    • /
    • pp.5-19
    • /
    • 1998
  • This attempts to study the change of land use pattern and to (md out the factors to impact the change of the pattern in metropolitan area of Seoul. The data are collected from the 9 units of geomorphological map of the study area with the help of Mapinfo techniques. The data are analyzed statistically with aids of SAS programs. Land use patterns are classified into two: rural and urban and population, urbanization, transportation, industrialization and land development programs are selected as independent variables to change the land use patterns from 1960-1990. The results may be summarized as follows : (1) Arable lands consisted of 30% of the total land in 1960 but the ratio of the arable land decreased to less than 25% in 1990 in the study area. (2) Urban land use types are dominant around southern part of Seoul but rural one are dominant around northern and eastern area of Seoul. (3) Rural type are influenced by population factor but urban land use type are related to transportation and population factors. Land development program is not a significant one to impact the land use pattern in the study area.

  • PDF

Development of Soil Analysis System for Land Readjustment Using GIS (GIS를 이용한 경지정리 토양처리 분석시스템 개발)

  • Lee, Ju-Seung;Goh, Hong-Seok;Lee, So-Yeal
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.12 no.4 s.31
    • /
    • pp.13-19
    • /
    • 2004
  • It has been a common practice to use manually processed soil maps in planning of land readjustment. This study is intended to develop a geographic information system for computerized processing of soil maps. The pilot region of land readjustment for this study was set at a mountain area with diverse formation of soil. Cadastral maps were employed for the basis map, and the main map was prepared using the information obtained from in-situ soil survey and laboratory tests. The detailed soil maps were drawn using the geographic information system, and analyzed and compared with manually processed maps. The soil maps, in conjunction with a computer program of land readjustment design, can be applied in estimation of soil works appropriate for the given soil condition, and also in selecting the efficient construction equipments.

  • PDF

A Study on the Possibility of Utilizing Both Biotope Maps and Land Cover Maps on the Calculation of the Ecological Network Indicator of City Biodiversity Index (도시생물다양성 지수(CBI) 중 생태네트워크 산정을 위한 도시생태현황지도 및 토지피복지도 활용 가능성 연구)

  • Park, Seok-Cheol;Han, Bong-Ho;Park, Min-Jin;Yun, Hyerngdu;Kim, Myungjin
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.44 no.6
    • /
    • pp.73-83
    • /
    • 2016
  • This study modified and applied the ecological network(Indicator 2) from the City Biodiversity Index(CBI) to be tailored to Korea. It is calculated by utilizing a biotope map and a land cover map. The ecological network of Gyeryong-Si was 13,713,703(33.8%) with the biotope map and 17,686,966(37.9%) with the land cover map. The result of the biotope map was lower than the land cover map. The ecological network of Goyang-Si was 4,961,922(4.9%) with the biotope map and 4,383,207(3.7%) with the land cover map. The result of the land cover map was lower than the biotope map. As a main result of the research, an error was discovered in which, when calculating the ecological network, the types of the military unit facilities were distinguished into a special area on the biotope map and into an urbanization promotion area and a forest area on the land cover map. In the case of a middle-classified, land cover map, the land use in the surroundings of the forest area was not subdivided. An error in the development area expressed as a forest green was discovered. When selecting the natural elements, too, regarding the types of artificially-created rivers, artificial ponds, and artificial grasslands, etc. on a biotope map, the exclusions were necessary. Regarding the natural, bare ground on a land cover map, there was a need to calculate by including the natural elements. It was judged that, in the future, the ecological network in the unit of the entire nation can be analyzed roughly by utilizing a land cover map. It was judged that, in a city having a biotope map, the calculation of the ecological network utilizing a map of the present situation of the urban ecology will be a more accurate diagnosis of the present situation.

Assessment of Land Cover Changes from Protected Forest Areas of Satchari National Park in Bangladesh and Implications for Conservation

  • Masum, Kazi Mohammad;Hasan, Md. Mehedi
    • Journal of Forest and Environmental Science
    • /
    • v.36 no.3
    • /
    • pp.199-206
    • /
    • 2020
  • Satchari National Park is one of the most biodiverse forest in Bangladesh and home of many endangered flora and fauna. 206 tons of CO2 per hectare is sequestrated in this national park every year which helps to mitigate climate issues. As people living near the area are dependent on this forest, degradation has become a regular phenomenon destroying the forest biodiversity by altering its forest cover. So, it is important to map land cover quickly and accurately for the sustainable management of Satchari National Park. The main objective of this study was to obtain information on land cover change using remote sensing data. Combination of unsupervised NDVI classification and supervised classification using maximum likelihood is followed in this study to find out land cover map. The analysis showed that the land cover is gradually converting from one land use type to another. Dense forest becoming degraded forest or bare land. Although it was slowed down by the establishment of 'National Park' on the study site, forecasting shows that it is not enough to mitigate forest degradation. Legal steps and proper management strategies should be taken to mitigate causes of degradation such as illegal felling.

Classification of rural villages based on Landscape Indices - Focusing on Landscape Ecological Aspects - (경관지수를 활용한 농촌마을 유형분류: 경관생태학적 접근)

  • Kim, Han-Soo;Oh, Choong-Hyeon
    • Journal of Korean Society of Rural Planning
    • /
    • v.17 no.3
    • /
    • pp.1-13
    • /
    • 2011
  • This study aims to analyse the landscape ecological characteristics of 39 rural villages in Korea and classify them according to their characteristics. After producing a land-use map of rural villages, this study quantified the landscape ecological characteristics of the subject sites as 18 landscape indexes using Fragstats. By applying the landscape index as a variable, selecting 4 factor through principal component analysis and conducting a cluster analysis, it classified them into 3 groups. Rural villages of Korea have their unique types of land-use due to the influence of physical environment such as geography, climate and ecology as well as the social and cultural influence, and the characteristics of land-use can be analysed and classified using the landscape index, the quantified landscape ecological characteristics.

The Analysis of 2001 Land Use Distribution of Daejeon Metropolitan City based on KOMPSAT-1 EOC Imagery (KOMPSAT-1 EOC 자료를 활용한 2001년도 대전시 토지이용 현황의 공간적 분포 분석)

  • Kim, Youn-Soo;Jeon, Gap-Ho;Lee, Kwang-Jae
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.7 no.3
    • /
    • pp.13-21
    • /
    • 2004
  • The dissemination of commercial satellite images. which have the high spatial resolution such as aerial photos, are the active trend in remote sensing community because of the recent development in satellite and sensor technology. Such high resolution satellite images provide a unique tool for the monitoring of ongoing urban land use change. Especially KOMPSAT-1, which was launched at December 1999 and successfully operated up to now, provides repeatedly panchromatic images over Korean peninsula, which has the spatial resolution of 6.6m. Based upon this KOMPSAT-1 EOC image data we can try to analyze and assess the temporal urban land use change, which could not be done because lack of such data. The aim of this paper is to analyze and assess the spatial land use characteristics of Daejeon Metropolitan City based on KOMPSAT-1 EOC data. The land use map of year 2001 is generated through the modification of the year 2000 land use map, which is published by National Geographic Information Institute, using visual interpretation of KOMPSAT-1 EOC image which is acquired in year 2001. This study can be the start point of the time series analysis of the long term land use change monitoring mit KOMPSAT-1 EOC data.

  • PDF

The Expectation of the Land Use and Land Cover Using CLUE-S Model and Landsat Images (CLUE-S 모델과 시계열 Landsat 자료를 이용한 토지피복 변화 예측)

  • Kim, Woo-Sun;Yun, Kong-Hyun;Heo, Joon;Jayakumar, S.
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.16 no.1
    • /
    • pp.33-41
    • /
    • 2008
  • Land use/land cover is very important to understand the change in the land cover between specific periods. But as there are number of factors which are responsible for the change in the land cover, it is very difficult to identify the specific factors. Therefore in the study we made an attempt to use the land use strategies quantitatively and conducted simulation study. The input data using the CLUE-S model are the satellite data of 1987 and 2001 from Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM+) and we conducted simulations for 23 years from 1987 to 2010. As a result, the accuracy between the land use map derived from original satellite data and simulation for 2001 was 93.69% and in this reason we could expect land use and land cover in the future.

  • PDF

Atmospheric Numerical Simulation for an Assessment of Wind Resource and an Establishment of Wind Map on Land (풍력자원 평가 및 육상바람지도 작성을 위한 고해상도 대기유동장 수치모의)

  • Jung, Woo-Sik;Lee, Hwa-Woon;Kim, Hyun-Goo;Choi, Hyun-Jung;Lee, Soon-Hwan;Kim, Dong-Hyuk;Kim, Min-Jung
    • 한국신재생에너지학회:학술대회논문집
    • /
    • 2009.06a
    • /
    • pp.529-531
    • /
    • 2009
  • To construct the wind map for mainland Korea, the well designed atmospheric numerical modeling system was used. Three nest domains were construced with spatial resolutions between $10{\times}10km$ up to the hightest resolution of $1{\times}1km$. Parameterization schemes like MRF(PBL), RRTM(radiation), Grell(cumulus) were chosen since wind data simulated is in better agreement with the observed wind data. High-resolution atmospheric numerical model was applied to simulate the motion of the atmosphere and to produce the wind map around the South Korea. The results of several simulations were improved compare to the past system, because of using the fine geographical data, such as terrain height and land-use data, and the meteorological data assimilation.

  • PDF