지속가능한 농촌경관자원 관리를 위한 토지평가 = Land evaluation for the management of sustainable rural landscape resources

다국어 초록 (Multilingual Abstract)

The purposes of this study are to construct a Land Utilization Type(LUT) map in the basis of a digital topographic map and satellite image for analyzing the land resources in a rural district and to propose the district-level land evaluation method with a consideration of land use limitations and land use requirements. A process on the land evaluation is for conserving the rural resources and maintaining the rural landscape. LUT is a basic data for understanding the specific land use in study area. LUT map was constructed by using the digital topographic map and a field survey. Fallow fields and flooded regions were also identified by an on-site field survey and interview. Fallow probability, one of the limitation factors, was analyzed by logistic regression analysis. The data, used in this analysis, was a field-surveyed data. As a result, the area of highly suitable land(S1) was 1,304.76ha and suitable land(S2) was 2,161.15ha and marginally suitable land(S3) 1,155.21ha. Especially most of these regions were located on a hillside with a steep slope and they existed as patches which were distinct from forest, therefore a plan for the management of a continuous landscape was needed. Potential soil erodibility index(PSEI) was derived from USLE equation. The area of not suitable land(N1) was 45.98ha in orchard, 25.85ha in fallow upland and 18.20ha in single cropping upland. PSEI was much higher in steep uplands and orchards. Flood hazard potentiality was explained by logistic regression analysis and piece-wised regression analysis. The result of suitability analysis by the potentiality of flood hazard was that the area of N1 was 194.91ha, absolutely not suitable land(N2) was 60.89ha. These lands had good conditions for the cultivation, however, had much possibility to be inundated. So it was necessary to manage the landscape disturbed by the flood. As a result of analysis of land suitability, the area of S1 was 83.34ha in Hyunchang-ri, 72.75ha in Jangcheon-ri and 51.98ha in Chogok-ri. The area of S2 was 106.38ha in Chogok-ri, 92.30ha in Jangcheon-ri, 83.68ha in Okcheon-ri and 79.38ha in Seok-ri. Most of these areas were located near the Nakdong river, land usability such as water supply and accessibility to roads was much higher than other farmlands. These unfair areas had some limitations such as fallow, soil erosion, inundation, then the methods of landscape management were proposed in unfair area for an innovation of disturbed landscape. These unfair condition caused the landscape disturbance in the unfair area. Several methods for the qualitative renovation of the disturbed rural landscape was proposed. Crops for a special use were proposed to be planted at a low-level unfair area, native plants at a mid-level unfair area and intended fallow at a severely unfair area were proposed with the object of the replacement or restoration to the natural vegetation. The unfair regions nearby a swamp or a river were proposed as a buffer zone for protecting them. With the change of landscape structure in the unfair area by this proposition, the changes of landscape structures between pre-restoration phase and post-restoration phase were compared by FRAGSTATS which is landscape assessment program. The numbers of patches were increased from 117 to 132 in forest, 1 to 4 in fallow orchard and 211 to 284 in orchard, The increment of patches in forest resulted from severance between edge patches because of importation of new forest patches. The increment of patches in orchard resulted from disconnection between orchard patches fragmented by increment of forest patches. Finally, the potentialities of fallow, soil erosion and flood hazard are much more important factors as limitations for the land use in agricultural lands. These factors could be explained by logistic regression model and must be selected as basic variables for the land suitability in the agricultural lands. Land suitabilities according to the land use such as a cultivating condition of the specific crop in agricultural area could be quantified by categorical regression model(CRM). This models, derived from CRM, could be used for agricultural purpose as a way to protect agricultural area of good quality and to restrict appropriation to other uses. In addition, establishment of unfair area by land suitability assessment could review the disturbed landscape, and the proposed landscape management plan for the unfair area was expected to be used as the proper way to manage the sustainable rural landscape.

목차 (Table of Contents)

• 목차 = i
• 표차례 = iv
• 그림차례 = viii
• 제1장 서론 = 1
• 제1절 연구배경 및 목적 = 1
• 제2절 연구사 = 6
• 제3절 연구범위 = 10
• 1. 공간적 범위 = 10
• 2. 내용적 범위 = 11
• 제2장 농촌자원 관리를 위한 토지평가 이론 = 15
• 제1절 농촌 경관자원 = 16
• 1. 국토경관 = 16
• 2. 자연경관 = 18
• 3. 농촌경관 = 19
• 제2절 토지평가의 개념과 방향 = 20
• 1. 토양과 토지 = 21
• 2. 토지평가의 개념 = 23
• 3. 토지평가의 방향 = 25
• 제3절 토지평가의 사례 = 28
• 1. 외국의 토지평가 = 28
• 2. 우리나라 토지적성평가 = 35
• 제3장 연구 내용 및 방법 = 38
• 제1절 연구지역 = 38
• 제2절 활용 공간정보 = 40
• 1. 수치지형도 = 40
• 2. KOMPSAT-1 EOC = 42
• 3. 지적도 = 45
• 4. 수치표고모형 = 47
• 제3절 농촌자원관리를 위한 토지평가 방법론 설정 = 48
• 1. 토지활용유형체계 = 48
• 2. 토지이용 요구조건 = 52
• 3. 토지적합성 등급 = 78
• 제4절 조건불리지역 경관보전 = 80
• 1. 조건불리지역과 경관보전직접지불제 = 81
• 2. 조건불리지역 경관관리 계획 = 85
• 제4장 공간정보와 토지활용유형 = 88
• 제1절 공간 분석 = 88
• 1. 지형 및 접근성 분석 = 88
• 2. 토양정보 분석 = 92
• 제2절 토지이용 및 농업여건 = 94
• 1. 토지이용 조사 = 94
• 2. 농업여건 조사 = 97
• 제3절 토지활용유형 조사 = 104
• 제5장 토지이용 요구조건과 토지적합성 평가 = 110
• 제1절 토지이용 제한인자 = 110
• 1. 휴경 잠재능 = 110
• 2. 토양침식 잠재능 = 117
• 3. 홍수피해 잠재능 = 126
• 제2절 농경지 토지이용별 적합성 평가 = 146
• 1. 논의 이모작 적합성 평가 = 147
• 2. 시설재배지 적합성 평가 = 154
• 3. 밭의 적합성 평가 = 159
• 제3절 토지적합성 종합 = 164
• 1. 마을별 토지적합성 = 164
• 2. 토지활용유형별 토지적합성 = 169
• 제6장 조건불리지역 경관관리 = 171
• 제1절 휴경지역 관리 = 171
• 제2절 토양침식 방지를 위한 경관관리 = 175
• 제3절 홍수피해 수변지역 경관관리 = 179
• 제4절 농촌경관 관리에 따른 경관변화 = 183
• 1. 토지적합성에 따른 경관변화 = 183
• 2. 경관지수에 의한 경관구조 변화 분석 = 185
• 제7장 결론 = 190
• 참고문헌 = 193
• Abstract = 204