• 한국농공학회논문집
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• 제61권1호
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• pp.45-59
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• 2019

Since the baseflow, which constitutes most of the river flow in the dry season, plays an important role in the solution of river runoff and drought, it is important to accurately evaluate the characteristics of the baseflow for river management. In this study, land use change was evaluated through time series data of land use, and then baseflow characteristics were analyzed by considering climate change and land use change using climate change scenarios. The results showed that the contribution of baseflow of scenarios considering both climate change and land use change was lower than that of scenarios considering only climate change for yearly and seasonal analysis. This implies that land use changes as well as climate changes affect base runoff. Thus, if we study the watershed in which the land use is occurring rapidly in the future, it is considered that the study should be carried out considering both land use change and climate change. The results of this study can be used as basic data for studying the baseflow characteristics in the Gapcheon watershed considering various land use changes and climate change in the future.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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• pp.580-583
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• 2007

Various matching methods have been introduced by investigators to improve digital elevation model (DEM) accuracy of satellite imagery. This study proposed an area-based matching method according to land cover property using correlation coefficient of pixel brightness value between the two images for DEM generation from IKONOS stereo imagery. For this, matching line (where "matching line" implies straight line that is approximated to complex nonlinear epipolar geometry) is established by exterior orientation parameters to minimize search area. The matching is carried out based on this line. Land cover classes are divided off into water, urban land, forest and agricultural land. Matching size is selected using a correlation-coefficient image in the four areas. The selected sizes are $81{\times}81$ pixels window, $21{\times}21$ pixels window, $119{\times}119$ pixels window and $51{\times}51$ pixels window in the water area, urban land, forest land and agricultural land, respectively. And hence, DEM is generated from IKONOS stereo imagery using the selected matching sizes and land cover map on the four types.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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• pp.566-569
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• 2004

This study is to trace the change of stream shape using the past series of aerial photographs, and to compare the land use changes of riparian area along the stream. For the Gyeongan national stream, aerial photographs of 1966, 1981 and 2000 were selected and ortho photographs were made with interior orientation and exterior orientation, respectively. As apparent changes of the stream, the consolidated reaches of stream with levee construction were straightened and their stream widths were widened. Especially the stream width of inlet part of Paldang lake was widened almost twice because of the rise of water level by dam construction in 1974. The land use maps (1966, 1981,2000) of riparian areas were also made, respectively and classified into 6 categories (water, forest, agricultural land, urban area, road, sandbar) by digitizing. The area of forest and agricultural land decreased and urban area increased as the stream maintenance was performed.

• Spatial Information Research
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• 제4권2호
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• pp.107-119
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• 1996

The purpose of this study was to carry out land use suitability analysis of Seoul Metropolitan City based on ecopolis planning concept or environmentally sound and sustainable development. Objectives of the analyses were to save energy by increasing urban density and allocating urban land use types near to public transportation system, to increase food producing capacity by restoring fertile agricultural lands, and to enhance urban ecosystem by expanding and networking parks and green spaces. This study has two phases. First, the land use suitability analyses for commercial, industrial, residential, agricultural, and green spaces were carried out. Second, required urban land use .types were allocated based on ESSD concept. Two alternative land use plans were developed based on two population sizes:existing population of 11million and 4.4million derived by the application of ermergy theory of T. Odum.

• 농촌계획
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• 제6권2호
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• pp.50-58
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• 2000

The purposes of the study were to detect and evaluate the historical land use and land cover changes on the Balan watersheds from three thematic mapper (TM) data, which were taken in 1985, 1993, and 1996. The supervised and unsupervised classification methods were adopted to classify five land cover categories: Paddy, upland, forest, residential, and water. The results indicated residential areas increased significantly during the past eleven years, Forest and paddy were converted to the urban areas. Future land cover patterns were forecasted using a Markov chain method, and the simulated land coiler change ratios presented.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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• pp.274-277
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• 2007

This study is to estimate the spatial distribution of soil loss using the land use data produced from QuickBird satellite imagery. For a small agricultural watershed (1.16 $km^2$) located in the upstream of Gyeongan-cheon watershed, a precise agricultural land use map were prepared using QuickBird satellite image of April 5 of 2003. RUSLE (Revised Universal Soil Loss Equation) was adopted for soil loss estimation. The data (DEM, soil and land use) for the RUSLE were prepared for 5 m and 30 m spatial resolution. The results were compared with each other and the result of 30 m Landsat land use data.

• 한국지역지리학회지
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• 제10권2호
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• pp.479-496
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• 2004

본 연구는 이집트의 농업발달을 사회 및 정치적인 변화와 관련하여 고찰하고, 오늘날 농업의 공간적 분포를 주요 작물 및 지역별로 설명하고자 하였다. 또한 이 지역에서 농업용 토지개발의 과정과 영농의 주체를 살펴보았다. 이집트 농업은 국제무역 관계에서 발전하였고, 특히 목화 및 사탕수수와 같은 작물은 국가의 전략적 작물로서 보호 및 관리되었다. 토지소유와 같은 문제는 주요 시대별 정치환경에 의해서 뚜렷이 대조가 되지만, 전략적 작물에 대한 국가의 관리는 어느 정도의 차이는 있으나 비교적 일관되게 유지되었다. 1990년대 이후 국가 경제의 자유화 정책과 맞물려 농업에서도 그 영향이 반영되어 작물의 경작과 토지 개간 사업의 개방에 뚜렷이 나타나고 있다. 농업의 공간적 및 영농의 성격은 델타, 중 이집트 및 상 이집트(Middle and Upper Egypt), 사막지역으로 나누어 파악하였다. 아울러 1950년대 이후 이집트의 경제 및 사회문제를 해결하기 위한 국가적 사업인 토지 개간의 발전과 개간된 토지에 대한 영농 주체의 성격을 고찰하였다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 1998년도 21세기 한반도 농업전망과 대책(한국작물학회.한국육종학회 공동주관 심포지움 회보)
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• pp.134-158
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• 1998

The objectives of this article are to identify the current status of agricultural infrastructure in North Korea and to suggest some cooperation measures among South and North Koreas and international agencies in order to develop the North Korea's agricultural infrastructure. The area of cultivated land in North Korea is 1,992 thousand ha (paddy field: 585 thousand ha: upland: 1,407 thousand ha) in 1997. Major water use facilities in North Korea are 1,900 reservoirs (included 100 big dams), 36,400 irrigation pumping stations, 1,600 drainage pumping stations, and 14'a,000 wells. In addition, there is 'two thousand Ri canal construction project' linking the rivers of Aprok, Daeryong, Daedong, Jaeryong, and Yesong. The unit of paddy land consolidation is about 1 ha which is regarded as rational for agricultural mechanization. The project of 'Darak' upland construction to create small size farmland, which has been carried out since 1976 has been unsuccessful due to the shortage of construction equipment. The area of farmland created by reclamation by 1995 is only 75 thousand ha although the potential project area is at)out 320 thousand ha along the western coast. It is due to the fact that civil engineering technologies and equipments are old and investment funds are insufficient. These are a few suggested areas of cooperation among South and North Korea and international agencies in order to improve North Korea's agricultural infrastructure : i) see land reclamation and land consolidation projects to increase paddy fields for rice production; ii) rehabilitation project in farm land areas devastated by flood; and iii) agricultural water development project which including diagnosing and rehabilitating irrigation and drainage facilities.

• 한국환경생태학회지
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• 제36권6호
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• pp.684-692
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• 2022

본 연구는 새만금 농생명용지와 주변 지역의 간척 전후 생태계서비스를 평가하고 증진방안을 마련하기 위해 수행하였다. 새만금 지역의 생태계서비스 기능은 토지 유형에 따라 다르게 나타났다. 간척 전 새만금은 공급, 조절, 문화, 지지서비스 기능이 모두 높았으나 간척 후에는 공급, 조절, 지지서비스 기능이 하락했다. 따라서 새만금 농생명 용지의 생태계서비스를 증진하려면 논 습지, 저수지 등의 반(半)자연생태계가 가지는 공급, 조절, 지지서비스를 강화하는 것이 필요하다. 현재 남아 있는 산림, 도서 지역 등의 자연생태계와 광활한 농경지를 농촌관광 및 생태관광을 특화하고, 농업과 관련된 교육.연구 위주의 문화서비스 기능을 강화할 필요가 있다. 이를 위해 넓은 농경지와 농업 기반을 활용하여 농업생산, 농촌관광 등을 활성화하고 고령화가 진행되고 있는 지역에 대한 정부의 지원이 필요하다.

• 한국경제지리학회지
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• 제7권2호
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• pp.283-296
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• 2004

본 연구는 수도권 농촌지역인 여주 지역의 토지이용 변화, 생활실태의 변화, 생활공간의 입지변화를 살펴 급격하게 변화하고 있는 생활공간의 지역성을 규명하였다. 여주 지역의 토지이용은 농촌 토지이용의 감소와 도시적 토지이용의 완만한 증가를 보인다. 완만한 속도의 도시화를 나타내는 기능으로서 관광농업이 나타나고 농외 겸업 활동이 비교적 활성화되고 있다. 여주지역 육로교통(고속도로통과)의 발달은 생활공간상의 입지이동에 큰 영향을 주었다. 수도권 외곽의 농촌이던 이곳은 도시화가 더딘 곳이었지만, 곧 전철 등의 개통 등 교통의 발달과 함께 도시화가 가속화될 지역이라 할 수 있다. 치밀한 도시계획이 수행될 때, 쾌적한 도시 주거환경 지역으로 변모할 것이 예상된다.