• Title/Summary/Keyword: vegetation distribution

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Community Distribution on Forest Vegetation of the Hyangjeokbong in the Deogyusan National Park (덕유산 국립공원 향적봉 일대 삼림식생의 군락분포에 관한 연구)

  • Choi, Young-Eun;Oh, Jang-Geun;Kim, Chang-Hwan
    • Korean Journal of Ecology and Environment
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    • v.46 no.2
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    • pp.289-300
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    • 2013
  • Forest vegetation of Hyangjeokbong (1,614 m) in Deogyusan National Park is classified into mountain forest vegetation and flatland forest vegetation. Mountain forest vegetation is subdivided into deciduous broad-leaved forest, valley forest, coniferous forest, subalpine coniferous forest, shrub forest, grassland forest, afforestation and etc., while riparian forest was found under the category of flatland forest vegetation. Including 122 communities of mountain forest vegetation and 2 communities of riparian forest, the total of 124 communities were researched; the distributed colonies classified by physiognomy classification are 42 communities deciduous broad-leaved forest, 37 communities of valley forest, 8 communities of coniferous forests, 6 communities of subalpine coniferous forest, 3 communities of shrub forest, 1 communities of grassland forest, 21 afforestation and 4 other communities. As for the distribution rate for surveyed main communities, Quercus mongolica, Quercus serrata, Quercus variabilis communities account for 47.02 percent of deciduous broad-leaved forest, Fraxinus mandshurica community takes up 57.48 percent of mountain valley forest, Pinus densiflora community holds 77.53 percent of mountain coniferous forest holds, and Taxus cuspidate-Abies koreana community takes up about 50 percent of subalpine coniferous forest. Mountain shrub forest and mountain grassland forest vegetation are concentrated mainly on the top of Hyangjeokbong and the ridge connecting the top and Jungbong. Meanwhile, riparian forest vegetation comprises 0.024% of the whole vegetation area in a study area. In conclusion, minority species consisting of Quercus mongolica, Quercus serrata, Quercus variabilis, Fraxinus mandshurica, Cornus controversa, Pinus densiflora, Abies koreana and Taxus cuspidata are distributed as dominant species of the uppermost part in a forest vegetation region in Deogyusan National Park. In addition, because of vegetation succession and climate factors, numerous colonies formed by the two species are expected to be replaced by Quercus mongolica, Carpinus laxiflora and Fraxinus mandshurica which are climax species in the area. However, in respect of subalpine coniferous forest, the distribution rate of deciduous broad-leaved forest seems to increase gradually due to global warming and artificial disturbance.

A Phytosociological Study of Hokkaido Vegetation, Japan (북해도 식생에 대한 식물사회학적 고찰)

  • Kim, Jong-Won
    • The Korean Journal of Ecology
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    • v.12 no.2
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    • pp.109-122
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    • 1989
  • The vegetation and landscape of Hokkaido were phytosociologically referred. The region of F a g e t e a c r e n a t a e on Hokkaido is divided into two types of deciduous broad-leaved forest: the oak (Quercus mongolica var. grosseserrata) forests mixed with conifers (mainly Abies sachalinensis) and the beech (Fagus crenata) forests of northernmost distribution in far-east Asia. The oak forests, which is dominated by Quercus mongolica var. grosseserrata in Japanse islands, seem to be developed from different climatic and edaphic conditions, especially in the amount and sharing pattern of precipitation in a year, and weak acid brown forest soil, volcanic ash soil and sandy soil. On the all-inclusive phytogeographical view-point, Hokkaido is situated at northernmost region of F a g e t e a c r e n a t a e (cool-temperate zone)neighboring with subarctic and subalpine vegetation, vegetation, but the evergreen broad-leaved forest (C a m e l l i e t e a j a p o n i c a e, warm-temperate zone) is abscent.

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The Environmental Change of Korea based on the Isopollen Map during the Holocene

  • Yoon, Soon-Ock
    • The Korean Journal of Quaternary Research
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    • v.22 no.2
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    • pp.6-11
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    • 2008
  • Vegetation change reconstructed by pollen analysis is effective to clarify natural conditions such as climate and soil as well as intensity of human activity. Pollen analysis in Korea is difficult to obtain peaty soil sedimented by low relief geomorphollogically and formation age is usually confined to obtain information during young Holocene as well as little absolute age data. Isopollen map was constructed in order to analyze the change of vegetation environment time-spatially during Holocene based on the 30 data with age dated from 78 results from pollen analysis in Korea. The indicatives for vegetation environment were the main trees in Korea such as Alnus, Pinus, Quercus and AP/NAP during the periods of 6,000 y.BP, 4,000 y.BP, 3,000 y.BP, 2,000 y.BP, 1,000 y.BP. As a result, the regional time-spatial patterns of vegetation distribution appeared clearly on the isopollen map. The dominant vegetation stage was repeated in the different pattern e.g. the dominance between Alnus and Quercus at West Coast and between Pinus and Quercus at East Coast competitively.

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The Analysis of Temporal and Spatial Variation on the Vegetation Area of the Siwha Tidat Flat (시화 갯벌식생범위의 시-공간적 변이 분석)

  • Jeong, Jong-Chul
    • Journal of Environmental Impact Assessment
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    • v.20 no.3
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    • pp.349-356
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    • 2011
  • This research is aim to analyze of changing landscape and according to phenological cycle from image information of coastal environment obtained by multi-media were analyzed by camera and satellite image. The digital camera and satellite image were used for tidal flat vegetation monitoring during the construction of Sihwa lake. The vegetation type and phenological cycle of Sihwa tidal flat have been changed with the Sihwa lake ecosystem. The environment changes of Sihwa tidal flat area and ecological change were analyzed by field work digital camera images and satellite images. The airborne, UAV and satellite images were classified with the changed elements of coastal ecological environment and tidal flat vegetation monitoring carried out the changed area and shape of vegetation distribution with time series images.

The extraction method for the best vegetation distribution zone using satellite images in urban area

  • Jo, Myung-Hee;Kim, Sung-Jae;Lee, Kwang-Jae
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.908-910
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    • 2003
  • In this paper the extraction method for the best suitable green vegetation area in urban area, Daegu, Korea, was developed using satellite images (1994, 1999, Landsat TM). For this, the GIS overlay analysis of GVI (Green Vegetation Index), SBI (Soil Brightness index), NWI (None-Such wetness Index) was performed to estimate the best suitable green vegetation area. Also, the statistical documents, algorithm and Tasseled-Cap index were used to recognize the change of land cover such as cultivation area, urban area, and damaged area. Through the result of this study, it is possible to monitor the large sized reclamation of land by drainage or damaged area by forest fires. Moreover, information with the change of green vegetation and the status of cultivation by GVI, but also moisture content by percentage by NWI and surface class by SBI can be obtained.

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Regional Scale Evapotranspiration Mapping using Landsat 7 ETM+ Land Surface Temperature and NDVI Space (Landsat ETM+영상의 지표면온도와 NDVI 공간을 이용한 광역 증발산량의 도면화)

  • Na, Sang-Il;Park, Jong-Hwa
    • Journal of The Korean Society of Agricultural Engineers
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    • v.50 no.3
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    • pp.115-123
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    • 2008
  • Evapotranspiration mapping using both meteorological ground-based measurements and satellite-derived information has been widely studied during the last few decades and various methods have been developed for this purpose. It is significant and necessary to estimate regional evapotranspiration (ET) distribution in the hydrology and water resource research. The study focused on analyzing the surface ET of Chungbuk region using Landsat 7 ETM imagery. For this process, we estimated the regional daily evapotranspiration on May 8, 2000. The estimation of surface evapotranspiration is based on the relationship between Temperature Vegetation Dryness Index (TVDI) and Morton's actual ET. TVDI is the relational expression between Normalized Difference of Vegetation Index (NDVI) and Land Surface Temperature (LST). The distribution of NDVI corresponds well with that of land-use/land cover in Chungbuk. The LST of several part of city in Chungbuk region is higher in comparison with the averaged LST. And TVDI corresponds too well with that of land cover/land use in Chungbuk region. The low evapotranspiration availability is distinguished over the large city like Cheongju-si, Chungju-si and the difference of evapotranspiration availability on forest and paddy is high.

Development of a Methodology to Estimate the Degree of Green Naturality in Forest Area using Remote Sensor Data (임상도와 위성영상자료를 이용한 산림지역의 녹지자연도 추정기법 개발)

  • Lee, Kyu-Sung;Yoon, Jong-Suk
    • Journal of Environmental Impact Assessment
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    • v.8 no.3
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    • pp.77-90
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    • 1999
  • The degree of green naturality (DGN) has played a key role for maintaining the environmental quality from inappropriate developments, although the quality and effectiveness of the mapping of DGN has been under debate. In this study, spatial distribution of degree of green naturality was initially estimated from forest stand maps that were produced from the aerial photo interpretation and extensive field survey. Once the boundary of initial classes of DGN were defined, it were overlaid with normalized difference vegetation index (NDVI) data that were derived from the recently obtained Landsat Thematic Mapper data. NDVI was calculated for each pixel from the radiometrically corrected satellite image. There were no significant differences in mean values of vegetation index among the initial DGN classes. However, the satellite derived vegetation index was very effective to delineate the developed and damaged forest lands and to adjust the initial value of DGN according to the distribution of NDVI within each class.

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Studies on the Classification, Productivity, and Distribution of $C_3,;C_4 $ and CAM Plants in Vegetations of KoreaIII. The Distribution of $C_3 and C_4$Type Plants (한국의 식생에 있어서$C_3, C_4 $ 및 CAM 식물의 분류, 생산력 및 분포에 관한 연구 3. $C_3 와 C_4$ 형 식물의 식생분포와 종분포)

  • Chang, Nam-Kee;Sung-Kyu Lee
    • The Korean Journal of Ecology
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    • v.6 no.2
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    • pp.128-141
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    • 1983
  • The districbution of $C_3; and; C_4$ type plants in Korea were studied. In the standpoint of photosynthetic types, plant distribution in Korea is classified as $C_3; and; C_4$ type plant zones. The forest destroyed by man interference, cultivating areas, and seashore areas are characterized by the dominant of $C_4$ type plants.(Figs. 2, 3, 4, 5) According to the results of this study, $C_3; and; C_4$ type plant distribution in Korea has a great relation to the habitat of plant vegetation (Table 1). The arid areas were in high proportion of C4 flora percenntages, while the well-developed woody forests or the vegetation of humid areas were in lower proportion(Fig.8).

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A Plans for Preservation and Distribution of Ilex cornuta Community Mt. Keumsung (Naju, Chollanamdo)

  • Kim, Ha-Song
    • Plant Resources
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    • v.1 no.2
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    • pp.105-108
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    • 1998
  • These studies had performed a plans for preservation and distribution of Ilex cormuta community Mt. Keumsung($35^{\circ}05'\;N,\;126^{\circ}04'\;E$) in Naju, Chonnam from Arpil, 1997 to October by Braun-Blanquet' method(1964). According to the vegetation table of community, the plant communities of the investigated sites were classified Ilex corunta-Trachelospermum asiaticum var. intermedium commnity. Now there still remains the natural environment to be developed in coast district around the riverside distributing Ilex cornuta Lindl., so it has scientifically high value to predict change of the ecosystem and preserve the community distribution. It needs plan for preservation high value to predict change of the ecosystem and preserve the community distribution. It needs plan for preservation

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Vegetation Status and Characteristics of the Spatial Distribution in Taeanhaean National Park (태안해안국립공원 식생 현황과 공간분포 특성)

  • Lee, Seon-Mi;Myeong, Hyeon-Ho
    • Korean Journal of Ecology and Environment
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    • v.48 no.2
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    • pp.122-128
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    • 2015
  • This study aims to figure out the vegetation status and characteristics of the spatial distribution in Taeanhaean National Park. As a result, vegetation communities were Pinus thunbergii community, Pinus densiflora community, Pinus thunbergii-Pinus densiflora community, Camellia japonica community, Carpinus turczaninowii community, Carpinus turczaninowii-Pinus thunbergii community, Kalopanax septemlobus community, Koelreuteria paniculata community, Robinia pseudoacacia community, and sand dune and coastal wetland vegetation including Vitex rotundifolia community, Elymus mollis community, Calamagrostis epigeios community, Ischaemum anthephoroides community, Zoysia sinica community, Suaeda maritima community, and Phragmites communis community. Landscape types in actual vegetation map were Pinus thunbergii community (3.92%), Pinus densiflora community (1.40%), Robinia pseudoacacia community (0.05%), sand dune and coastal wetland vegetation (0.11%), field (0.46%), seashore (0.24%), thinning area (0.08%), bareground (0.16%), and sea (93.58%). Area of Pinus thunbergii community among vegetation type was $14.797km^2$ (3.92%) and the largest. Stratification structure and species composition of Pinus thunbergii community distributed in the seashore were different as a result of disturbance and human use. On the other hand, we assumed that succession will take place to the potential natural vegetation that is Quercus serrata and Quercus dentata in undisturbed Pinus thunbergii community. Meanwhile, Erechtites hieracifolia was occupied in understory of Pinus thunbergii community around the seashore and Diodia teres was invaded to sand dune vegetation. They may affect on natural species negatively. Therefore, monitoring and management plans are necessary.