• 제목/요약/키워드: vegetation area

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함평만 무안 지역 갯벌의 식생 및 비식생 환경에서 이산화탄소 농도와 플럭스의 계절 변동 (Seasonal variations of CO2 concentration and flux in vegetation and non-vegetation environments on the Muan tidal flat of Hampyong Bay)

  • 소윤환;강동환;권병혁;김박사
    • 한국습지학회지
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    • 제21권4호
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    • pp.257-266
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    • 2019
  • 본 연구에서는 함평만에 속하는 무안 지역의 갯벌에서 갈대가 서식하는 식생 지역과 갈대가 없는 비식생 지역을 6개 지점씩 선정하여 저조시에 계절별로 이산화탄소 농도와 플럭스 및 지온의 변화를 관측하였다. 관측은 2012년 5월 30일(봄)과 8월 8일(여름), 2013년 1월 31일(겨울)에 각각 수행되었다. 관측 결과, 식생 지역의 이산화탄소 평균농도는 전체적으로 겨울에 가장 높았고 봄, 여름 순으로 나타났으며, 비식생 지역도 식생 지역과 같은 농도변화를 보였다. 식생 지역의 이산화탄소 플럭스는 봄과 여름에 모두 양(+)의 값으로 방출(emission)의 형태를 보이나, 겨울에는 반대로 흡수(uptake)하는 음(-)의 값으로 나타났다. 이산화탄소 플럭스의 평균값은 봄이 가장 높았으나 여름과 거의 유사하였고, 겨울은 낮은 음의 값으로 나타났다. 비식생 지역은 봄에 양의 값으로 방출의 형태를 보였고, 여름과 겨울에는 흡수하는 음의 값으로 나타났다. 평균값은 봄이 가장 높았고, 여름과 겨울의 차는 작게 나타났다. 연구지역 이산화탄소 플럭스의 계절적인 변화특성은 봄의 경우 식생과 비식생 지역 모두 호흡에 의한 방출이 우세하였으며, 여름은 식생 지역에서 방출이 우세하였고 비식생 지역은 식물플랑크톤의 광합성에 의한 흡수가 확인되었으나 매우 미미하였다. 겨울은 식생 지역에서 이산화탄소 플럭스의 변화가 거의 나타나지 않았으며, 비식생 지역은 흡수가 일부 확인되었으나 매우 미미하였다.

자연환경에 대한 주민의 평가와 평가 요인에 관한 연구 (A Study of Resident's Evaluation on Natural Environment and the Evaluation Factors)

  • 이동근
    • 환경영향평가
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    • 제6권1호
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    • pp.67-76
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    • 1997
  • The purpose of this research is to draw out the factors affecting the residents' evaluation on valuable animal and vegetation and the naturality of vegetation seen near regional environment. With this purpose, Questionnaire research and vegetation survey focusing on area of types of vegetation and species of big trees were made in 30 points of midstream of Tama River, Tokyo, Japan. The questionnaire research was based on basin environment units in order to be reflective of regional natural environment. The vegetation was classified into 5 types according to its flora and observed the covering area of each points and types through the aerial photograph. In addition, the species of big trees in habitat were listed by the survey. Results as below came out by analyzing the outcome of the questionnaire research and vegetation survey by multiple regression. First, residents are most likely not to distinguish precisely between the quantitative and qualitative aspects of vegetation. Both of the researches are apt to be influenced by quantitative factors of vegetation. Second, residents are assumed to consider forest of big trees, inhabitant of groups of big trees, highly natural.

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탄천 생태경관보전지역에서의 10년간 하천경관 형성과정 (The Process of River Landscape for 10years in Tan-chun Ecological Landscape Reserve)

  • 최정권;최미경;이가연
    • 한국환경복원기술학회지
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    • 제20권6호
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    • pp.107-115
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    • 2017
  • This study illustrated the process of bar structure and vegetation coverage to understand historical changes of riverbed and suppose adaptive management in Tan-chun ecological landscape reserve. The study site that lower reach of the Tan-chun are known as habitats of migratory bird and aquatic species with dynamic riverbed. Aerial photos from 2006 to 2016 and surveyed vegetation data in 2006 and 2016 were used by analysis of landscape changes and comparison of vegetation coverage. Study area is classified into 3 sites (A: straight site, B: meandering site, C: meandering and junction with Yangjae-cheon). The result showed that bar area of A and C sites gradually increased, B site decreased during 10 years. Also, ratio of bar area to vegetation coverage and level of vegetation coverage increased in all sites during 10 years. All sites seem to have experienced the terrestrialization with time. On the other hand, ratio of annual vegetation increased and ratio of perennial vegetation decreased in C site in 2016 compare to 2006. Because area of Japanese Hops (Humulus japonicas) as one type of annual vegetation increased, other vegetation could not grow up by its powerful expandability. It is time to make active adaptive management based on not only continuos monitoring but also revaluation of river conditions in order to enhance habitat quality and quantity in Tan-chun ecological landscape reserve.

백두대간 자연생태계의 지역구분을 위한 식생지수에 관한 연구 (A Study on Vegetation Index for Zoning of Natural Ecosystem on Baekdudaegan)

  • 김갑태
    • 한국환경생태학회지
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    • 제16권3호
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    • pp.223-232
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    • 2002
  • 자연생태계의 보전을 위한 지역구분을 위하여 백두대간(피재-도래기재) 구간을 조사한 식생조사 자료를 바탕으로 식생의 보전가치를 식생지수라는 것으로 수치화하는 방법을 제시해 보고자 한다. 식생지수는 생물다양성, 임분의 보전가치, 환경의 청정성, 임분의 역사성 입지의 생산성 등을 바탕으로 수치화하였다. 식생지수는 백두대간 관리범위 설정에 이용될 수 있을 것이라 사료된다. 식생지수 I의 경우 총 113개의 조사지 중에서 59개 지역 52.2%가 핵심지역에 속하고, 34개 지역 30.1%, 20개 지역 17.7%가 각각 완충지역과 전이지역에 속하는 것으로 나타났다. 식생지수II의 경우 49개 지역 43.4%가 핵심지역에 속하고, 38개 지역 33.6%, 26개 지역 23.0%가 각각 완충지역과 전이지역에 속하는 것으로 나타났다.

거제 서이말등대 주변의 식생 (The Vegetation of Seoimal-Lighthouse area in koje Island)

  • 김인택
    • 생명과학회지
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    • 제12권6호
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    • pp.649-653
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    • 2002
  • 본 조사지역은 행정상 거제시 일운면 와현리 남단 서이말등대가 위치한 해발 228.4 m고지 일대로서 2001년 8월 1일부터 2002년 7월 30일 까지 1년동안 6회에 걸쳐 식생과 식물상을 조사하여 현존식 생도와 군락조성표를 작성하였다. 본 조사지역에는 미국자리공, 주홍서나물, 별꽃아재비등 27종류의 귀화식물과 동백나무, 우묵사스레피, 메밀잣밤나무 등 30종류의 상록활엽수가 자생하였다. 식물군락은 동백나무군락, 모밀잣밤나무군락, 참식나무군락, 졸참나무군락, 굴참나무군락, 소사나무군락, 때죽나무관락, 곰솔군락, 상수리나무군락, 느티나무군락, 생달나무군락 등 총 11개 군락으로 나타났다. 전반적으로 천이의 거의 최종단계에 이르는 매우 양호한 상록활엽수림이 보존된 지역으로서 백서향, 갯취, 개족도리, 보춘화, 죽절초 등의 자생은 학술적, 자원적 가치가 높게 인정된다.

昌寧地域 濕原의 生態學的 硏究 1. 植生과 環境要因 (Ecological Studies on the Bog in Changnyeung Area(1. Vegetation and Environmental Factors))

  • Ri, Chong Un;Woen Kim;Hee Cheon Park
    • The Korean Journal of Ecology
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    • 제8권3호
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    • pp.171-176
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    • 1985
  • The structure of natural vegetation and soil condition in bog area of Woopo, Changnyeung, South Korea were observed. The vegetations in the investigated area could be classified into two groups; a typical bog vegetation with dominant species of Eleocharis mamillats, Acorus calamus and Persicaria hostatosagittata and the transitional vegetation of three neighboring areas. Interspecific correlation in the investigated area was very close. In the typical bog vegetatiion regions (region II, III, V, VI, VII, VIII and X) soil pH, field moisture capacity, available P content and exchangeable K were moderate. But, In the transitiional area I, with the highest humus content, field moisture capacity and exchangeable K Salix gracilistyla was dominant. In the region IV with the lowest humus and a ailable P content and with high soil pH Geophyta was a major component species. Also Acorus region IX with the lowest content of exchangeable K Therophyta was dominant and plant species was diverse due to weak water influence. The vegetation structure of the region IX was most different from that of the whole vegetation.

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자연공원의 용도지구계획을 위한 기초적 연구 (Fundamental Studies for District Planning in Natural Park)

  • 배병호
    • 한국조경학회지
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    • 제19권3호
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    • pp.27-40
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    • 1991
  • For the establishment of district planning in natural parks, vegetationin the most significant point. Consequently, district plan should be made basically under phytosociological investigations. The purpose of this paper is to conserve vegetation in the district planning at natural park(Nam Han San Sung provincial natural park). The result of vegetation survey are as follows : As an actual vegetation 13 communities are recognized. Those are Quercus mongolica-Carpinus laxiflora community, Quercus mongolica-Rhododendron schlippenbachii community, Quercus serrate community, Betula platyphylla var. Japonica community, Quercus dentata community, Quercus mongolica-Pnuus densiflora community, Quercus acutissima community, Robinia pseudo-acacia community, Alnus hirsuta community, Castanea crenata community, Quercus variabilis community, Pinus densiflora community, Pinus rigida community, weed community on cultivated land(Form land), Larix leptolepis reforested land, cut over area and non-vegetation area. The grade of vegetation naturalness was divided into five degrees by characteristics of actual vegetation. I intended to make zoning plan for protection of vegetation with a special attention to the grade of vegetation naturalness and I discussed the necessity of the improvement of existing district plan. District plan was proposed as Fig. 5.

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Studies on the Actual Vegetation and Vegetation Structure of the Tongdosa Temple Forest

  • Kang, Hyun-Mi;Lee, Sang-Cheol;Choi, Song-Hyun;Park, Seok-Gon
    • 한국환경생태학회지
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    • 제29권1호
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    • pp.46-61
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    • 2015
  • The purpose of this study is to investigate a vegetation structure around Tongdosa temple forest and provincial park and to provide preliminary data. In order to look over the vegetation status, an actual vegetation map was drawn around study area. Vegetation structure survey was carried out for 6 representative communities of actual vegetation which were Quercus variavilis community, Carpinus tschonoskii community, Pinus densiflora community, P. densiflora-Broadleaf deciduous Forest community, Q. mongolica community and Broadleaf deciduous Forest community. The area of the Tongdosa district measured $29,202,262m^2$. Actual vegetation type were divided into 35 types, and the ratio of Q. variavilis community was 32.35 % ($9,447,932m^2$). To investigate the structure of 6 representative communities, 58 plots were set up and unit area plots measured $100m^2$. The estimated age of the forest is 50~100-years-old and the oldest tree P. densiflora is 113-years-old.

민통선.비무장지대(DMZ)일대의 식생에 관한 연구 - 동해 북부선 지역을 중심으로 - (Study of Vegetation of Civilian Control Line.DMZ Area - Focusing on the Donghae Bukbu Line -)

  • 김창환;김귀곤;최영은;김상식;신중열
    • 한국환경복원기술학회지
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    • 제13권6호
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    • pp.63-74
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    • 2010
  • In this study, wetlands and forest vegetation surrounding rail, road of DMZ area and Civilian Control Line were studied as follows: Plant communities hierarchical system of forest vegetation classified according to the results of phytosociological methods of Braun-Blanquet (1964) as; Quercus mongolica community, Quercus mongolica-Quercus variabilis community and Quercus acutissima -Quercus mongolica community. Wetland vegetation major communities; Scirpus wichurae community, Scirpus fluviatilis community, Juncus effusus var. decipiens community, Typha orientalis community, Typha angustata community, Juncus alatus community, Miscanthus sacchariflorus community, Phragmites communis-Miscanthus sacchariflorus community, Hragmites communis community, Phragmites communis-Alnus japonica community, Alnus japonica community, Phragmites japonica community, Salix koreensis community, Prunus padus community, Alnus japonica community, Zizania latifolia community and Amorpha fruticosa community were surveyed. Coastal sand dune vegetation in a DMZ area and the Civilian Control Line was mainly characterized by; Carex pumila, Elymus mollis, Carex kobomugi, Rosa rugosa, Calystegia soldanella, Lathyrus japonica and Aster hispidus, species that are of typically sand dune vegetation.

Study on the diagnosis of disturbed forest ecosystem in the Republic of Korea: in case of Daegwallyeong and Chupungryeong

  • Lee, Seon-Mi;Cha, Jae-Gyu;Moon, Ho-Gyung
    • Journal of Ecology and Environment
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    • 제41권7호
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    • pp.182-190
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    • 2017
  • Background: Baekdudaegan was designated in 2005 as a protected area to prevent destruction and conserve. However, there are many disturbed and destroyed areas. The total disturbed area amounts to $25.9km^2$ (0.94%), including $13.4km^2$ (0.49%) in the core area and $12.5km^2$ (0.45%) in the buffer area. This study aims to classify the vegetation types established in the disturbed areas and diagnose the current conditions for ecological restoration in the forest ecosystem. Methods: We surveyed the vegetation in the disturbed areas of Daegwallyeong and Chupungryeong and the surrounding natural areas. The survey conducted from July to September 2015 targeted a total of 54 quadrats by Braun-Blanquet method (Daegwallyeong, 22; Chupungryeong, 32). We also investigated the height and coverage of each layer. We classified the vegetation types based on the field data and analyzed the ratio of life form and the exotic plants, species richness, and vegetation index (Hcl). The Normalized Difference Vegetation Index (NDVI) was calculated from rapideye satellite imagery in 2014 and 2015. Results: Vegetation types were classified into 11 groups according to the criteria that included successional sere or plantation at first, followed by developmental stage and origins. As a result of the analysis of the survey data, species richness, vegetation index (Hcl), ratio of tree plants, and the NDVI tended to increase, while the ratio of the exotic plants tended to decrease with the time since disturbance. These indicators had the classified values according to the vegetation types with time since the disturbance. Conclusions: These indicators can be effectively used to diagnose the conditions of the present vegetation in the disturbed area of the Baekdudaegan area. In addition, the NDVI might be effective for the diagnosis of the disturbed status instead of the human efforts based on the higher spatial resolution of satellite imagery. Appropriate diagnosis of the disturbed forests in the Baekdudaegan area considering the established vegetation types is essential for the elaboration of restoration plans. In addition, restoration target and level should be different according to the disturbed status of restoration site.