• Title/Summary/Keyword: 식생하도

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Soil Salinity and Vegetation Distribution at Four Tidal Reclamation Project Areas (4개 간척 지구에 분포하는 식생과 토양 염류농도)

  • Lee, Seung-Heon;Ji, Kwang-Jae;An, Yeoul;Ro, Hee-Myong
    • Korean Journal of Environmental Agriculture
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    • v.22 no.2
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    • pp.79-86
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    • 2003
  • This research was conducted to present reference data to be used as newly reclaimed tidal land management. We investigated vegetation succession at 4 reclaimed/reclaiming project areas and discussed relationship with soil and vegetation trhrough investigation and analysis soil chemical characteristics at 2 areas. 14 families 58 kinds were investigated. Vegetation were variou at Dea-Ho conservation polt and Seok-Mun National Industrial Area which are maintaining naturally. Vegetation were simple at Hong-Bo and Dongjin and MinKyong river areas which effected sea water. Common species that were investigated at 9 sites were Suaeda asparagoides, Aster tripolium, Phragmites australis, Suaeda maritima, Suaeda japonica, Carex scabrifolis. As soil desalinization progressing, soil classified at first saline-soidc soil, the nest saline soil and then normal soil. Chenopodiaceae revealed at about 30 dS/m of soil ECe and existed to 10 dS/m of soil ECe. At about 20 dS/m of soil ECe. Aster tripolium, Calamagrostis epigeios, and Sonchus brachyotus revealed and then non-halophytes and common plants at inland revealed at low soil ECe of about 10 dS/m. However it was not to progress vegetation sucdession and soil desalinization at the same time, owing to input of seeds or plants ect from out-ecosystem. So for promotion of vegetation at newly reclaimed tidal land, we proposed that it was very effective to plant artificially halophytes or suitable species through soil test.

Health Condition Assessment Using the Riparian Vegetation Index and Vegetation Analysis of Geumgang mainstream and Mihocheon (수변식생지수를 이용한 금강본류와 미호천의 건강성 평가 및 식생분석)

  • Lee, Seung-Yeon;Jang, Rae-Ha;Han, Young-Sub;Jung, Young-Ho;Lee, Soo-In;Lee, Eung-Pill;You, Young-Han
    • Korean Journal of Environment and Ecology
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    • v.32 no.1
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    • pp.105-117
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    • 2018
  • This study conducted health assessment and multivariate vegetation analysis using the riparian vegetation index in 30 sites of the Geumgang mainstream and Mihocheon to obtain practical data on the river management of the Geumgang. The result showed that the number of plant communities was 54. The flora was 75 families, 185 genera, 243 species, 2 subspecies, 21 varieties, 2 varieties, and 268 taxa. The riparian vegetation index was 38.3 (3.3; G-D1 ~ 66.7; G-U2, G-U4, and G-M3), and the health of the rivers in this area was evaluated as normal (grade C). The health of rivers was the highest in the upper stream of Geumgang mainstream and lowest in the downstream of Geumgang mainstream. The relationship between riparian vegetation index and chlorophyll-a content was low. The riparian vegetation was divided into five groups of Digitaria ciliaris colony group, Salix gracilistyla colony group, Erigeron annuus colony group, the group dominated by Humulus japonicus, Salix koreensis, Miscanthus sacchariflorus, and Phragmites japonica colonies, and the group dominated by Conyza canadensis and Echinochloa crusgalli var. echinata colonies. They had the similar health conditions. The CCA analysis showed that the environmental factors affecting the distribution of vegetation were physical factors such as vegetation area, artificial structure area, waterway area, branch width, channel width, and bank height and the biological factors such as the number of species. As such, it is necessary to maintain the health condition through continuous monitoring where the health condition is high and to apply active measures such as ecological restoration where the health condition is low.

A Study on the Characteristics of Vegetation Landscape of Fortress of Jeonju District in Represented on the (<전주지도>에 표현된 조선 후기 전주부성의 식생경관상)

  • Kang, In-ae;Rho, Jae-hyun
    • Journal of the Korean Institute of Traditional Landscape Architecture
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    • v.36 no.2
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    • pp.1-10
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    • 2018
  • This study aims to find out the characteristics of the vegetation landscape characteristics and system which led the formation of the urban image in Jeonju in the late Joseon period connected with urban spatial structure, using designated as treasure No. 1586 which was made in the middle of 18C. The vegetation landscape characteristics of Jeonju in the late Joseon Dynasty derived from the analysis of are summarized as follows. Firstly, the vegetation landscape system in Jeonju is composed of the natural vegetation around mountain area of Jeonju-Buseong, the independent vegetation or cluster planting forests linked with the main facilities, the Bibo-Forests connected with topographical characteristics of Jeonju, and the vegetation combined with a private garden. Secondly, planting landscape was specialized using flag species and local species. Thirdly, the garden-type plantation centered on the back yard or front of main facilities, with the background of natural vegetation landscape combined with the mountain area and the vegetation combined with a private garden, dominates vegetation landscape of Jeonju Buseong as objects. Fourthly, in order to overcome the defects of topographical characteristics, the Bibo-Forests were emphasized as an important planting landscape element in addition to the vegetation landscape elements connected with main facilities. Fifth, ecological vegetation landscape technique was taken considering the topographical characteristics. The characteristics of vegetation landscape of Jeonju Buseong, which is derived from , have an important meaning to restore and reproduce Jeonju's historical features. Especially, the vegetation communities of the non-booming concept combined with the geographical features, the ecological landscape harmonizing with the topography, the round house type landscape mixed with the private house, and the specialization of vegetation landscape using local species are important factors in securing the city image based on the historical characteristics and creating a city brand that utilizes vegetation landscape.

Flora and Vegetation of the Southern Slope Area at Mt. Chongok and Mt. Tuta(Kangwon-do) (청옥산 - 두타산 남사면 일대의 식물상과 식생)

  • 조창구;백원기;이우철
    • Korean Journal of Plant Resources
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    • v.12 no.3
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    • pp.240-252
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    • 1999
  • Floristic composition and phytosociological studies of Mt. Chongok and Mt. Tuta were investigated, and that was compared with the previously published report in 1993. Vascular plants were composed of 100 families, 358 genera, 573 species, 95 varieties, and 18 formae, totaling 686 taxa. The vegetation was relatively well conserved based on Pteridophyta calculation (Pte-Q), 1.13. Compared with the vascular plants of the southern and northern slope area, the vascular plants of the southern slope area were composed of 87 families, 287 genera, 419 species, 73 varieties, and 11 formae, totaling 503 taxa, and those of the northern slope area consisted of 94 families, 293 genera, 427 species, 73 varieties, and 12 formae, totaling 512 taxa, respectively. Also, compared with the taxa in each side, both sides were composed of 332 species in common, southern sides, 172 species and northern sides, 182 species, respectively. The number of species of 11 families belonged to the higher level among total families taxa was composed of 328 species(47.8%). Among them, Compositae and Rosaceae were included much more species than remnant families. Korean endemic species were composed 16 families, 24 genera, 20 species, 8 varieties and 2 formae, totaling 30 species(4.4%). Compared with the Korean endemic taxa in each side, both sides were composed of 14 species in common, southern sides, 11 species and northern sides, 5 species, respectively. A naturalized plants were 20 species, correspond to 9.2% of totaling 218 species appeared in South Korea. Among them,12 species were appeared commonly in both sides, southern sides, 16 species and northern sides, 16 species, respectively. Life form spectra was H-D1-R5-e type and, useful resources plants are as follows; edible source(42.4%), medicinal source(31.5%), ornamental source(15.6%) and pasture source (13.3%) in the total region. The forest vegetation of the southern slope was classified into 1 order, 1 alliances and 5 communities; Rhododendro-Quercetalia mongolicae, Lindero-Quercion mongolicae, Quercus mongolica Typical community, Populus davidiana-Quercus mongolica community, Pinus koraiensis-Taxus cuspidata community, Pinus densiflora-Carex humilis var. nana community, Betula costata-Betula ermanii community. It is considered that the slight difference of the flora and vegetation in the northern and southern slope is mostly due to the topographical and climatic difference. Even closer investigation is required for the more accurate comparison in this area.

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A Study on Comparison of Changes in Ecological Characteristics for Bulgwangcheon(stream) Close-to Nature Section (불광천 자연형 하천 정비구간의 생태적 특성 변화 비교 연구)

  • Park, Won-Zei;Lee, Kyong-Jae;Han, Bong-Ho;Jang, Jae-Hoon
    • Journal of the Korean Institute of Landscape Architecture
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    • v.40 no.2
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    • pp.112-129
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    • 2012
  • The aim of this study was to provide basic data in managing the project that was carried out on Bulgwangcheon in a nature-friendly way to improve the conditions around the areas, which was brought to completion in 2002, based on changes in ecological characteristics. For this propose, this study examined documents related to the project, compared physical and enviromnental changes before and after the project was conducted and analyzed changes in the stream ecosystem. The result showed that in areas that effluent water was often observed, especially when it rained, the river wall was washed away and vegetation was found damaged. As for actual vegetation, this study compared planting coverage of each section of the research area and actual vegetation charts. The results indicated that Lespedeza spp., Aster koraiensis among mixed seeds that were planted in the reservoir path were almost swept away while Festuca arundinacea dominated the areas. Phragmites communis, Miscanthus sacchariflorns and Salix gracilistyla which had been planted in a small number were also almost washed out though a small number of them were left to form a colony. After examining the topography and structure of the plant community, this study found that areas where mixed seed were planted had changed into two types of vegetation: First type of area is dominated by P and R which are usually raised in apron with abundant floating particles. The second type of area is dominated by dry gramineous plant such as F and A. Areas around low flow channel where Phragmites communis, Miscanthus sacchariflorus and Salix gracilistyla planting construction method is applied was washed away with the width of low flow channel reduced. Though P, M and S formed a small community in some areas around the low flow area, they were in small number and in composition of simple plant species. Two ways were suggested in this study to manage the stream in an ecological way. First, adequate revetment construction methods should be applied by monitoring the flow of the stream as well as considering the flood control of urban streams. Second, target vegetation communities that are suitable for the environment of the stream should be chosen and be plantedconstantly with high density. At the same time, ornamental native plants shouldn't be planted as they have been and disturbing vegetation should be removed.

Development of stability evaluation program for levee revetment (호안 안정성평가 프로그램 개발)

  • Kim, Sang-Mun;Choi, Hung-Sik
    • Proceedings of the Korea Water Resources Association Conference
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    • 2008.05a
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    • pp.1398-1402
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    • 2008
  • 본 연구는 하천 호안의 안정성에 대한 값들을 체계적으로 정리하고 관련 기법을 컴퓨터 프로그램으로 개발하여 실무자들이 호안의 시공 설계시 안정성에 대한 평가를 쉽게 할 수 있도록 개발된 프로그램이다. 프로그램의 사용을 쉽게 하기 위해 GUI(Graphical User Interface)의 기능이 뛰어난 Visual Basic을 사용하였으며, Data-Base를 기반으로 하는 Menu-Driven 방식을 채택하였다. 프로그램의 기본구성은 호안의 수리적 안정성연구를 바탕으로 국내의 하천에서 가장 많이 사용되고 있는 식생호안공, 돌망태공, 식생호안 블록공의 3가지로 구성 되어 있으며 각 호안공의 소류력에 필요한 수리 특성 자료와 각종 계수, 호안에서 측정되어진 값을 산정 후 각 호안의 내력 소류력 값과 외력 소류력 값을 산출 한 뒤 이 들 값을 비교하여 호안의 안정성을 평가하였다. 호안의 안정성평가 프로그램을 바탕으로 하천호안의 축조 및 최근의 생태성이 강조된 하천의 호안 시공 설계 시 많은 사용이 기대된다.

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Analysis of heavy metals deposited on wood leaves in an industrial city (산업도시지역에 식생하는 나뭇잎에서의 중금속 침적도 분석 연구)

  • 박충교;이병규
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2001.11a
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    • pp.41-42
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    • 2001
  • 울산지역의 고정배출원 및 이동배출원과 같은 각종 배출원에서 발생되는 대기오염물은 건물, 도로, 토양 각종 식물 및 수목, 강, 호수, 바다 등과 같은 아주 다양한 수용체로 침적되고 있다. 최근의 연구에 의하면 대단위 산업공단을 가지고 있는 대형산업도시인 울산지역 대기중의 중금속 농도는 타 지역에 비하여 매우 높으며, 또 상당한 정도의 산성비도 내리고 있는 것으로 나타났다. 본 연구는 울산지역의 수목의 잎에 침적되어 있는 중금속을 울산 지역의 산성비 수준의 pH로 조절한 산성용액으로 용출하여 그 성분을 분석하여 각종 대기 오염물이 나무를 비롯한 식물에 침적되는 정도를 각 특성지역과 계절(봄, 여름)별로 비교ㆍ분석하였다. (중략)

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Development of early diagnosis method of damaged tree by pine wilt disease using Portable NIR camera (휴대용 근적외선 카메라를 이용한 소나무 재선충 피해목 조기탐지 방법개발)

  • Jung, Sung-Eun;Kim, Yoo-Seung;Noh, Byung-Yoon;Lee, Young-Won
    • Proceedings of the KSRS Conference
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    • 2008.03a
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    • pp.14-19
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    • 2008
  • 소나무 재선충에 감염되어 고사하는 소나무의 증가는 우리나라 산림에 심각한 위협이 되고 있다. 재선충은 매개 후 고사단계에 이르기까지 진행과 확산이 빨라 감염목이 발견되면 곧바로 임내에서 벌채 및 훈증 처리해야 하며 5${\sim}$6월에 감염되어 10${\sim}$11월에 육안으로 고사를 확인할 수 있다. 재선충에 의해 소나무가 고사되는 과정에서 식생활력도가 크게 감소하며 이러한 현상은 근적외선 영역에서 분광반사의 감소를 수반한다. 따라서 본 연구는 근적외선영역의 분광감소를 이용하여 재선충 피해목의 조기진단이 가능할 수 있다는 것에 착안하여 수행하였다. 근적외선영상 취득 방법으로 휴대가 간편한 근적외선 카메라를 이용하여 재선충 피해지역의 소나무림을 5월부터 11월까지 매월 촬영하였다. 이렇게 수집된 분광반사값으로부터 식생지수(Vegetation Index: VI)의 변화를 분석하였고, VI의 감소율로부터 소나무 재선충 감염목을 조기에 발견할 수 있다는 결과를 도출하였다.

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Estimation of Evapotranspiration Distribution using LAI (LAI를 고려한 유역 증발산량 분포 분석)

  • Kim, Joo Hun;Kim, Kyung Tak;Park, Jung Sool
    • Proceedings of the Korea Water Resources Association Conference
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    • 2004.05b
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    • pp.1276-1279
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    • 2004
  • 수문순환 과정에서 증발산은 물이 유역으로부터 제거되는 주요 기작으로서, 증발산에 중요한 역할을 하는 식물은 지구 육지 표면의 약 $70\%$ 정도를 점유하고 있으며, 생태계의 가장 중요한 구성인자로서, 식물의 종류 및 군집의 공간적 분포유형, 생육주기 및 형태적 변화 등과 같은 정보들은 그 지역의 기후, 토양, 지질, 지리적 특성을 밝히는데 중요한 역할을 한다. 식생관련 정보 중 엽면적 지수란 단위지표면적당 총 엽면적의 비를 나타내는 것으로 환경생태, 기상, 수문분야에서 다양하게 활용되고 있다. 본 연구에서는 Landsat 위성영상과 DEM 등의 GIS 자료를 이용하여 지형적인 요소를 고려하여 유역의 증발산량을 분포형으론 산정하는 것을 목적으로 하고 있다. 연구대상유역은 한강의 제1지류인 경안천유역으로 하였고, 증발산량 산정에 필요한 기상자료는 월평균기온, 수평면일사량, 상대습도를 이용하였고, 일사량비와 일조시간비 계산을 위해 위도별에 따른 총일조시간과 월평균일사량을 계산하였다. 잠재증발산량 산정은 Penman-Monteith식을 이용하여 산정하였으며, 식생지수와 밀접한 관계가 있는 LAI를 고려하여 산정하였다.

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Type of ecological sound proof wall based on their plant survival (생태방음벽의 형태에 따른 활착율에 관한 연구)

  • Han, Say-Gwon;Cho, Hae-Yong;Bashyal, Sarita
    • Proceedings of the KAIS Fall Conference
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    • 2010.05b
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    • pp.1101-1104
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    • 2010
  • 실험에 사용된 식생기반재는 일반토양, 비료, 인공토양을 혼합하여 사용하였다. 기반재는 식물이 뿌리를 발생시켜 착근하는 과정초기에 필요한 비료성분을 즉각적으로 공급하는 화학비료와 장기간에 걸쳐 공급하는 유기물 비료로 구성되었다. 식생기반재 발아실험에 이용된 36종의 종자들은 균일하게 도포한 후 1cm 정도 배합토로 덮어 주었다. 본 실험에서는 배합토의 주성분인 일반토양과 유기물의 비율을 8:2로 하여 실험하였다. 또한 식물의 활착과 피복율을 높이기 위해 Seed Spray를 이용하여 다시 한 번 종자를 분사하여 실험하였다.

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