동해안 석호에서 수생천이계열에 따른 식생구조의 변화와18개 석호의 건륙화 상태 평가
Change of the vegetation structure according to hydrosere processes and the evaluation of successional state of the 18 lagoon located in the east coastal region, korea
- 주제(키워드) Lagoon , Hydrosere , Successional state , Hydrophyte , Succession Preservation , Restoration , Management
- 발행기관 江陵大學校 大學院
- 지도교수 李奎松
- 발행년도 2009
- 학위수여년월 2009. 2
- 학위명 석사
- 학과 및 전공 生物學科
- 원문페이지 xv, 141 p.
- 본문언어 한국어
초록/요약
In order to make a diagnosis the present ecological state for the conservation and management, I investigated the environmental factory, landscape characteristics and vegetation structure in the 18 east coastal lagoon, Korea. And I have also compared the successional state by the developed landification index among the 18 lagoons, and studied the changes of the environmental and vegetational factors according to the hydro-seral stages in the shoreline of the lagoons. I have divided seral stages into 7 stages from open water stage to the stratified forest stage consider as the characteristics of water body, dominance of submerged and emergent plant, and development of the shrub, subtree and tree layer. According to the successional stage, water depth gradually decreased and water quality changed from seawater to brackish water and from brackish water to fresh water, organic matter in a soil layer gradually increased, and the litter layer grew up. As the development of the vegetation structure, the life-form of the vascular plants changed as follows; open water → submerged plant and floating-leaved plant → emergent plant and submerged plant → emergent plant → emergent plant, mesophyte and scrub → mesophyte. In the late seral stage, the 3 different forest types were established by the water retention or drainage and nutrient accumulation of the soil layer. Salix dominant forest developed in the wetted sites, the forest type dominated by Pinus thunbergii, Carex pumila and mesophytes developed in the well drained sites causing by sand substrate, and the forest type dominated by the planted or ruderals such as Pinus densiflora, Robiniapsedo-acacia, Festuca ovina, Setaria viridis ect. developed in the sites composed of forest soil introduced by artificial reclamation. I divided the 18 lagoons into 3 groups according to the successional state of the lagoon develoopmental processes. The 6 lagoons such as Hwajin-po, Songji, Young-lang, Chung-cho, Kyung-po and Hyang showed the relatively earlier stage of the successional process, the 5 lagoons such as Chun-jin, Bong-po, Mae and Sun-po showed the middle stage, and the other 7 lagoons such as Sunyoodam, Bong-po wetland, Gapyung-ri wetland, Ssang, Youm-gae, Gun-gae and Pung showed the most later stage among the 18 east coast lagoon. The lagoons belong to the more later stage represented the shallow water depth and characteristics of fresh water body. The lake area was negatively correlated with successional state, and positively correlated with the rate of landification. The lagoons belong to the later stage showed the wide distribution of the hydrophyte and mesophyte, and the more complicated shoreline than earlier stage. Natural factors were generally main driving force of the succession in the lagoons before 1966, but the artificial disturbances such as plantation and land-up for the rice field and construction were the more important driving force than natural factors afte 1966. The representative lagoons having the artificial driving forces were the lake Chung-cho, Kyung-po and Pung.
more목차
I. 서론 = 1
II. 조사지 개황 및 연구방법 = 4
1. 조사지 개황 = 4
1.1 연구대상지 위치 = 4
1.2 기후 = 6
2. 연구방법 = 9
2.1 환경 요인의 측정 = 9
2.2 천이 단계에 따른 식생 분석 = 9
2.3 석호의 현존식생도 작성과 시대에 따른 호소면적 변화의 산출 = 14
2.4 수습생식물상 = 14
2.5 동해안 18개 석호의 속성 = 14
2.6 건륙화 상태 평가 지표 설정 = 17
2.7 통계분석 및 Ordination 분석 = 20
III. 결과 = 21
1. 동해안 석호에서 천이진행에 따른 입자환경요인의 변화와 식생구조의 발달 = 21
1.1 수체환경의 변화 = 21
1.2 토양입지환경과 낙엽층의 변화 = 21
1.3 식생구조의 변화 = 21
1.4 천이단계의 서열 = 39
2. 동해안 18개 석호의 수습생식물상 = 48
2.1 동해안 18개 석호의 수습생식물상 = 48
2.2 동해안 18개 석호의 특산, 희귀식물, 귀화식물 및 생태계교란식물 = 50
2.3 통해안 18개 석호의 수습생식물의 유사도 지수 = 53
2.4 동해안 18개 석호의 군락유형별 면적 = 56
3. 동해안 18개 석호의 속성 = 64
3.1 환경적 특성 = 64
3.2 식생 구조적 속성 = 64
3.3 형태적 속성 = 64
3.4 유역 및 경관적 속성 = 67
3.5 동해안 18개 석호의 턱성에 따른 서열 = 76
4. 동해안 석호별 건륙화 상태 평가 = 80
IV. 논의 = 82
1. 동해안 석호에서 수생천이 계열에 따른 환경요인과 식생요인의 변화 = 82
2. 동해안 18개 석호의 수습생식물의 분포 특성 = 86
3. 동해안 18개 석호의 건륙화 상태 평가와 비교 = 87
V. 참고문헌 = 94
