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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korean Forest Society
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Journal DOI :
Korean Forest Society
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Volume & Issues
Volume 100, Issue 4 - Dec 2011
Volume 100, Issue 3 - Sep 2011
Volume 100, Issue 2 - Jun 2011
Volume 100, Issue 1 - Mar 2011
Selecting the target year
Sex Morph, Fruiting Characteristics, and Seed Viability of Acer palmatum var. matsumurae (Koidz.) Makino
Kim, Gab-Tae ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 131~135
To examine the sex morph, fruiting characteristics and seed viabilities of Acer palmatum var. matsumurae (Koidz.) Makino, the flowers and seed-sets of 101 trees were collected from early April to late October 2010, and floral structure and seed viability were studied. Among investigated 101 trees, 73.3% of trees were protandrous (PA: pollen is shed before stigmas are receptive) and 26.7% were protogynous (PG: stigmas are receptive before pollen is shed). Acer palmatum var. matsumurae has heterodichogamous sexual system. Number of flowers and seed-sets per inflorescence are significantly different between sex morphs, and PA has more flowers and seed-sets per inflorescence than PG. Rates of sound seeds and decayed seeds are significantly different between sex morphs. Rates of sound seeds were 46.4% in PA, but 65.6% in PG. and rates of decayed seeds were 49.6% in PA, but 23.6% in PG. The differences of decayed seeds' rates between sex morphs might be related with the timing of pistil flower blooming and insect pests' outbreak.
Anti-cancer and Anti-microbial Effect of the Fraction Isolated from Pyrus ussuriensis Leaves
Lee, Chang-Eon ; Kim, Young-Hun ; Lee, Byung-Guen ; Lee, Do-Hyung ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 136~141
This study was conducted to confirm the application as ingredients of cosmetics through an examination of the function for anti-cancer and anti-microbial of the fraction isolated from Pyrus ussuriensis leaves. The dried leaf of P. ussuriensis were extracted with acetone-
(6:4, v/v), concentrated and fractionated with the upper layer of acetone on a separatory funnel. Each fraction was freeze dried, then a portion of acetone soluble powder was chromatographed on a Sephadex LH-20 column using a series of aqueous methanol as eluents and also used the MIC-gel using a series of aqueous methanol as developing solvent. The isolated compounds were identified by silica-gel TLC. The growth inhibition activity was measured using the MTT assay by the mouse meltioma (B16F10) cell. The cancer cell growth inhibition rate of fractions isolated from P. ussuriensis leaf was 80%. In anti-microbial activity test, the fraction of P. ussuriensis with 0.25 mg/disc resulted in the clear zone of 1.3 cm and 2 cm for Staphylococcus aureus and S. epidermidis of gram positive bacillus, respectively. In Escherichia coli of gram negative bacillus, the fraction with 0.5 mg/disc resulted in the clear zone of 1.1 cm-1.5 cm each fraction. From these results, we confirmed that acetate fraction of P. ussuriensis has a great potential as a natural ingredients with a anti-cancer and anti-microbial source.
A Change of Stream Water Quality by Forest Types
Ma, Ho-Seop ; Kang, Won-Seok ; Kang, Eun-Min ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 142~148
This study was carried out to clarify the change characteristics of stream water quality by type of forest from June to August, 2009 in three stands (Castanea crenata, Pinus densiflora and Plantation Land) of Samgye-ri Naedong-myeon Jinju-si Gyeongsangnam-do. The pH of stream water in three stands was highest in Pinus densiflora (pH 7.18) followed by Castanea crenata (pH 6.90) and Plantation land (pH 6.90) while the electrical conductivity of stream water was highest in Plantation land followed by Castanea crenata stand and Pinus densiflora stand was the lowest. Cations contents of stream water in three stands were high in order of
. But anions of stream water in Castanea crenata stand and Pinus densiflora stand were high in order of
while those of stream water in Plantation land were high in order of
. The stream water in three stands was significant at pH, EC,
, TNU and Color by duncan test. These results indicate that quality of stream water have a difference among three stands. The level of pH,
of stream water in three stands were within the domestic use standard for drinking water. but turbidity and color of stream water were more than that of domestic use standard for drinking water. Therefore, non-point sources like urban forest watersheds which are soil erosion and fertilizer application lands should be taken to the appropriate mitigation measures if they are to be used as source of drinking water.
Uncertainty Analysis of Stem Density and Biomass Expansion Factor for Pinus rigida in Korea
Seo, Yeon-Ok ; Lee, Young-Jin ; Pyo, Jung-Kee ; Hyun-Kim, Rae ; Son, Yeong-Mo ; Lee, Kyeong-Hak ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 149~153
This study was conducted to examine the uncertainty analysis of the stem density and biomass expansion factor for Pinus rigida in Korea. A total of 57 representative sample trees were harvested. The age class in Pinus rigida forests was divided into two, which were stands with less than 20 years and more than 21 years. The influence of stand ages on biomass expansion factor showed that it was statistically significant (p=0.0001), but it was not significant on stem density (p=0.8070). The results of this study based on the uncertainty evaluation method which were suggested by IPCC guide line indicated that stem density of the stand with less than 20 years were 30.92%, while were 25.12% the stands with more than 21years. The uncertainty in biomass expansion factor of less than 20 years and more than 21 years were 60.32% and 22.42%, respectively. The uncertainty of less than 20 years was higher compared to those stands with more than 21 years. In the case of old stand, it showed the lowest uncertainty results but younger stands showed the highest uncertainty results. This study could be applied to our country's emission factor by using stem density and biomass expansion factors which were less than 20 years and more than 21 years for Pinus rigida in Korea.
Development of the Semi-Crawler Type Mini-Forwarder - Design and Manufacture -
Kim, Jae-Hwan ; Park, Sang-Jun ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 154~164
This study was conducted to develop the semi-crawler type mini-forwarder that can be operated comfortable small-scale logging operation in the steep terrain and also used at a variety of operations such as the civil work in erosion control and forest-road. Considering the minimum turning radius and the width of forest operation road, the total length, width and loading capacity of the semi-crawler type mini-forwarder is 5,750 mm, 1,900 mm and 2.5
, respectively. The maximum engine power is 96ps at 3600 rpm. Selected hydraulic pumps are consists of two main pumps and two sub-main pumps. Main hydraulic pumps are utilized to running motor of the front wheel and rear crawler. Sub-main pumps are utilized to the actuation parts such as steering, crane, out-rigger and dump cylinder. The transmission was adapted as the HST (Hydro-Static Transmission) system. The driving parts are designed and manufactured as the front wheel type and the rear crawler type. The steering type was manufactured as the ackerman type. Driving control parts type was designed and manufactured as driver's seat type of normal cars. It is also attached on auxiliary equipments such as winch, log grapple and out-rigger. The traveling speed of the semi-crawler type mini-forwarder in forest road was 5.3 km/hr to 7.7 km/hr.
Effects on Control of Pine Wilt Disease (Bursaphelenchus xylophilus) by Thinning Methods in Red Pine(Pinus densiflora) Forest
Jeon, Kwon-Seok ; Kim, Chul-Su ; Park, Nam-Chang ; Hur, Tae-chul ; Hong, Sung-Cheon ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 165~171
This study was conducted to investigate the effect on pine wilt disease by health-thinning, thinning and sapling tending in red pine forest (Pinus densiflora). As a part of developing forestry control methods for pine wilt disease control. In case of putting in pine sawyer (Monochamus alternatus) with pine wood nematode (Bursaphelenchus xylophilus), the specimen trees in health-thinning, thinning and control treatment were withered more than 50%, although there were not statistically significant differences in treatments. In treatment site, thinning slashes had influenced on the spread of pine wilt disease (experiment 1). In thinning stand of sapling pine, site with thinning slashes had highest mortality (> 90%). There were approximately 10% mortality in the site of carried thinning slashes from case and the site of non-thinning with released M. alternatus (experiment 2). The larvae had not appeared in young tree stump with health-thinning and thinning at April, the current emergence year of M. alternatus, but there were larvae in sapling tree stump with thinning at May, the current emergence year of M. alternatus. In case of stands with infected young and sapling tree by pine wilt disease, there is no effects of on pine wilt disease control by health-thinning, thinning, saplings tending at April and May, the current emergence year of M. alternatus, and leaved thinning slashes had influenced on the spread of pine wilt disease as habitation of M. alternatus.
In Vitro Propagation of Wild Cynanchum wilfordii Through Axillary Bud Culture
Lee, Su-Gwang ; Lee, Song-Hee ; Kang, Ho-Duck ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 172~177
This study was conducted to establish the optimal condition for in vitro propagation of wild Cynanchum wilfordii. The highest in vitro seed germination rate of 91.6% was obtained from the seed treated with gibberellic acid (
) (100 ppm) for 24 hours followed by cultured on Woody Plant Medium (WPM) media supplemented with 1.0 mg/L 6-benzyl adenine (BA). The best shoot height obtained (5.2 cm) in medium with 1.0 mg/L
, but the plants was grown abnormally and eventually died. The highest number (2.4) was shown when shoot were in cultured on the media including 0.1 mg/L BA after 4 weeks. Root induction from shoot obtained in vitro culture was effective on ventilation and without plant growth regulators (PGRs) and root length was highly developed (2 cm) at 0.1 mg/L naphthalene acetic acid (NAA). The highest survival rate (70%) was when plantlet grew pre-ventilation of in vitro condition.
Effect of Salicylic Acid on the Root Growth and the Eleutheroside Accumulation in the Adventitious Root Culture of Eleutherococcus senticosus
Ahn, Jin-Kwon ; Lee, Wi-Young ; Park, Eung-Jun ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 178~183
This study was carried out to investigate the dose-dependent effect of salicylic acid on both the adventitious root growth and the accumulation of various eleutherosides in the bioreactor culture of Eleutherococcus senticosus. The highest biomass production (5.4 g DW/L) was observed in the absence of salicylic acid, while the root growth was significantly decreased by increasing the concentration of salicylic acid. Salicylic acid stimulated the production of both eleutheroside B, E and
. The highest levels of eleutheroside B (179.5
g/g DW), E (1169.9
g/g DW) and
g/g DW) were obtained by the addition of 80
M of salicylic acid. The maximum eleutheroside production was 4975.8
g/L when salicylic acid was not added. In addition, when the adventitious roots were cultured in the basal medium supplemented with 80
M of salicylic acid, the highest levels of eleutheroside B was observed at the 9th day, while eleutheroside E and
were observed at the 6th day, respectively.
Distribution Characteristics of the Naturalized Plants in the Stream of Downtown and Urban Forest of Chuncheon City
Son, Ho-Jun ; Ahn, Chi-Ho ; Ahn, Seung-Il ; Kim, Nam-Young ; Kim, Young-Sol ; Park, Wan-Geun ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 184~201
This study was carried out to investigate the distribution status and invasional characteristics of the naturalized plants. The vascular plants in these areas were consisted of total 381 taxa: 81 families, 234 genera, 295 species, 2 subspecies, 66 verieties, 18 forms. Among the investigated vascular plants, naturalized plants (Sicyos angulatus, Barbarea vulgaris, Thlaspi arvense, Amorpha fruticosa, Trifolium pratense, Ambrosia artemisiifolia, Ambrosia trifida, Aster pilosus, Rumex acetosella etc.) were 41 taxa. The Naturalization Index (NI) was 10.70% and the Urbanization Index (UI) was 15.30% at Chuncheon city. The Invasion Index was 63.41% at urban river and 97.56% at stream high, 19.51% at urban forest area.
The Morphologic Characteristics of Step-pool Structures in a Steep Mountain Stream, Chuncheon, Gangwon-do
Kim, Suk-Woo ; Chun, Kun-Woo ; Park, Chong-Min ; Nam, Soo-Youn ; Lim, Young-Hyup ; Kim, Young-Seol ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 202~211
The geometric characteristics of step-pool structures and how they are influenced by channel characteristics were investigated in a steep mountain stream in the Experimental Forests of Kangwon National University in Chuncheon, Gangwon-do. Average values of steps for the study reaches were as follows: step spacing, 4.69 m; step height, 0.47 m; step drop, 0.71 m; step-forming particle sizes, 0.68 m; number, 21steps/ 100 m; the ratio of step spacing to channel width, 0.5; and step steepness, 0.13. Relationships between spacing and height of steps and channel gradient showed a negative- and positive correlation, respectively, whereas all geometric variables of steps manifested poor correlation with channel width. Therefore, step steepness, expressed as the ratio of step height to step spacing, increased as channel gradient increased. The ratio of step steepness to channel gradient representing the criterion of maximum flow resistance was 1.2, indicating the channel bed's stable condition. In particular, the relationship between the ratio of step drop to step height and channel gradient showed a significant negative correlation, suggesting the influence of steppool geometry in trapping sediment and providing an aquatic habitat. Positive correlations also exist between spacing and drop of steps and step particles. Our findings suggest that the dynamics of step-pool structures may strongly control physical and ecological environments in steep mountain streams, so understanding them is essential for stream management.
The Photoautotrophic Culture System Promotes Photosynthesis and Growth of Somatic Embryo-derived Plantlets of Kalopanax septemlobus
Park, So-Young ; Moon, Heung-Kyu ; Kim, Yong-Wook ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 212~217
A photoautotrophic micropropagation methodology in liquid culture medium has a number of advantages for large-scale propagation of plants. This paper describes an improved system for the mass propagation via somatic embryogenesis of the medicinal plant Kalopanax septemlobus Nakai. Somatic embryo-derived young plantlets of K. septemlobus were cultured either under heterotrophic conditions with sucrose on half-strength MS medium with 30
sucrose, under heterotrophic conditions without sucrose, or under photoautotrophic conditions (MS liquid medium without sucrose under forced aeration) for four weeks before transferring the plantlets for acclimatization. Plantlets grown under photoautotrophic conditions had more leaves, higher chlorophyll content, a higher net photosynthetic rate (NPR), and a higher survival rate. The results indicate that the photoautotrophic conditions with a forced ventilation system are effective in enhancing the growth of plantlets and the rate of net photosynthesis. The plantlets grown under photoautotrophic conditions had a high survival rate (92%) upon ex vitro transplantation. Our study shows that autotrophically produced plantlets acclimatize better and sooner upon ex vitro transplantation than conventionally cultured plants.
Estimating the Local Economic Impact of National Natural Recreation Forests Using Regional Input-Output Model
Sang-Yoel Han ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 218~225
The purpose of this study is to estimate the economic impacts of National Natural Recreation Forests using a regional input-output (I-O) model. Based on the regional I-O transactions tables developed by Bank of Korea (2009), National Natural Recreation Forests related sectional multipliers were derived with respect to output, income, employment, and value-added. Furthermore, surveys questioned National Natural Recreation Forests visitors in order to estimate per capita expenditures. The result shows that one National Natural Recreation Forests generated 3,380 million Won of output impact, 328 million Won of income impact, 1,017 million Won of value-added impact, and 22 full-time jobs within local effect, respectively. Also, one National Natural Recreation Forests generated 687 million Won of output impact, 85 million Won of income impact, 245 million Won of value-added impact, and 6 full-time jobs outside local effect, respectively.
Variation of Samara, Seed, Germination and Growth Characteristics of Ulmus davidiana var. japonica Nakai Populations
Song, Jeong-Ho ; Jang, Kyung-Hwan ; Lim, Hyo-In ; Park, Wan-Geun ; Bae, Kwan-Ho ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 226~231
Ulmus davidiana var. japonica is a deciduous tree species used for traditional medicine. This study was conducted to investigate the variation of samara, seed, germination and growth characteristics among populations and among individuals within five natural populations of U. davidiana var. japonica distributed in Korea. The ten characteristics of samara and seed, the three germination behaviors as well as the two growth traits were studied in samaras collected from total 32 trees. Statistical analysis of all characteristics showed that there were significant differences among populations as well as among individuals within populations. In this study, the mean characteristics of this species were 13.0 mm in samara length, 9.7 mm in samara width, 1.37 in samara index, 0.015 g in samara weight, 3.07 mm in samara stalk length, 3.85 seed length, 2.66 mm in seed width, 1.46 in seed index, 1.29 mm seed thickness, 0.0062 g in seed weigh, 34.8% in germination percentage, 8.6 days in mean germination time, 3.5 ea./day in gemination rate, 37.7 cm in height and 4.90 mm in root collar diameter. Especially, coefficients of variations in samara weight, germination percentage, germination rate, height and root collar diameter were relatively high (
30.0%) compared to other traits. There was no significant relationship between population association and geographical distribution. The results of principal component analysis for 15 characteristics showed that primary four principal components (PC's) explained 100% of the total variation. The first PC accounted for 41.8% of the variability which correlated with morphological traits, the second PC accounted for 32.9% of the variability which correlated with germination behaviors and the third PC accounted for 16.3% of the variability which correlated with growth traits.
The Study of Persimmon Vinegar as a Functional Drink on Reduce Blood Lipids and Enhance Exercise Performance
Seo, Hyo-Bin ; Song, Young-Ju ; Kang, Jun-Yong ; Kwon, Dae-Keun ; Kim, Pan-Gi ; Ryu, Sung-Pil ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 232~239
This study was performed to find out the persimmon vinegar as a functional drink on reducing blood lipids and enhancing exercise performance. For these, thirty two Sprague-Dawley male rats were divided into 4 groups; control (CONT), water placebo with high fat diet control (ACON), high fat diet with 2.5 times diluted persimmon vinegar ingestion (PV2.5), and high fat diet with 5.0 times diluted persimmon vinegar ingestion (PV5.0). Body weight was not different. Abdominal fat pads were statistically reduced in PV2.5 and PV5.0 compared to CONT and ACON. Blood glucose was not significant but TC, LDL-C and TG were lower in PV2.5 and PV5.0 than other groups, and HDL-C in PV2.5 was the highest among groups. Glycogen contents in the muscle and liver were higher in PV2.5 and PV5.0 compared to CONT and ACON. These results suggested that persimmon vinegar ingestion may inhibit the blood lipids increase and increase glycogen storage which possibly enhancing exercise performance. Therefore, persimmon vinegar has the possibility as the functional drink.
Early Successional Change of Vegetation Composition After Clear Cutting in Pinus densiflora Stands in Southern Gangwon Province
Cho, Yong-Chan ; Kim, Jun-Soo ; Lee, Chang-Seok ; Cho, Hyun-Je ; Lee, Ho-Yeong ; Bae, Kwan-Ho ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 240~245
Vegetation changes were studied for 16 yr in clearcut logged Pinus densiflora forests in the southern Gangwon-do province in Korea by applying chronosequence approach. Ambient temperature and relative humidity, Detrended Correspondence Analysis (DCA), Multiple Responses Permutation Procedure (MRPP), Indicator Species Analysis (ISPAN) were used to examine successional trajectory and compositional changes. After clearcutting, canopy openness was increased abruptly at three folds (1yr 68.3% and R1 23.0%) and then decreased, but relative moisture was slightly decreased (6%) compare to control site. In the result of DCA, right after clear cutting, vegetation composition was developed heterogeneously compared to control sites, and then approached to control sites within 16 years. Based on MRPP, species composition of each developmental stages (1yr, 3yr, 10yr and 16yr) revealed signigicant differences to that of control vegetation (R1, R3, R10 and R16). Indicator species in 1yr and 3yr samples included various woody species rather than herbaceous species, but in 10yr and 16yr, herbaceous were more abundant. Earlier succession of pine forests likely can explain to Initial Floristic Composition (IFC) Model.
Analysis of the Relationship Between the Characteristics of the Wind Damaged Trees and the Wind Caused by Typhoon 'Kompasu'
Youn, Ho-Joong ; Park, Ki-Hyung ; Lee, Myung-Bo ; Won, Myoung-Soo ; Kim, Kyong-Ha ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 246~255
This study was carried out to investigate the characteristics of wind damaged trees in the Hongneung Arboretumin Korea. Many trees in the Hongneung Arboretum were damaged by the 'Kompasu', the seventh typhoon in the year of 2010 having strong impacts on the central region of Korea. Damaged trees were divided into 3 damage types: windthrow, slanted and broken trees. Most of damaged trees (97.3%) were found at low slope (below 15 degree) or medium slope (15-20 degree). The 45.3% of damaged trees were coniferous and 54.7% were deciduous trees. The wind speed was recorded for the duration of the typhoon from 04:00 AM to 12:00 PM on September 2. The average wind speed and the maximum instantaneous wind speed inside the forest were 1.4 m/ sec and 3.5 m/sec, respectively. The highest peak of the average and the maximum instantaneous wind speed inside of forest, 3.4 m/sec and 8.7 m/sec respectively, were recorded at 06:10 AM on September 2. To analyze relationship between wind characteristics and the damage types, the average wind speed and the frequency of wind wave was compared to those of pre-typhoon period (Feb. 13, Feb. 20, Apr. 21, Oct. 16, 2009 and Mar. 20, 2010). The results indicated that the damaged trees were affected by frequent wind wave rather than the wind speed itself. Also average wind direction inside the forest was analyzed to investigate the impact of wind direction on the damaged trees. The wind had mainly blown from SE and SW, and the maximum instantaneous wind direction was SE direction overall. Most of the damaged trees (84.0%) had fallen down to the NW or NE direction. This result showed that the fallen direction of the damaged trees and wind direction was highly related. Therefore, we found that the frequency of wind wave was the main factor of wind damages during the typhoon 'Kompasu' and wind direction was highly related to the fallen direction.
Vulnerability Assessment of Forest Distribution by the Climate Change Scenarios
Lee, Sang-Chul ; Choi, Sung-Ho ; Lee, Woo-Kyun ; Park, Tae-Jin ; Oh, Su-Hyun ; Kim, Su-Na ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 256~265
This study was aiming at assessing the vulnerability of forest distribution by the A2 and B1 climate change scenarios of Intergovernmental Panel on Climate Change (IPCC). The vulnerability of forest distribution was assessed using its sensitivity and adaptation to climate change with the help of the simulations of Koreanspecific forest distribution model, so-called the Thermal Analogy Group (TAG), and the Plant Functional Type (PFT) defined in the HyTAG (Hydrological and Thermal Analogy Groups) model. As a result, the vulnerable area occupied 30.78% and 2.81% of Korea in A2 and B1 scenario, respectively. When it comes to the administrative districts, Pusan in A2 and Daegu in B1 appeared the most vulnerable area. This study would be employed into preparation of adaptative measures for forest in future in terms of using climate change scenarios reflecting different future development conditions.
Crown Fuel Characteristics and Allometric Equations of Pinus densiflora Stands in Youngju Region
Kim, Sung-Yong ; Lee, Byung-Doo ; Seo, Yeon-Ok ; Lee, Young-Jin ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 266~272
This study was conducted to analyze the characteristics of crown fuel biomass and to develop allometric equations for the estimation of crown fuel biomass by subjectively categorized the crown component in Pinus densiflora stands. A total of ten representative trees were destructively sampled in Youngju region. Crown fuel were weighed separately for each fuel category by size class. The results of this study showed that foliar moisture content was 119% while the average crown moisture content was 105.3%. The crown fuel/total fuel loading ratio was 30%, needles and twigs with less than 1 cm diameter accounted 50.3% for its fuel/crown fuel loading ratio. Adjusted multiple coefficient of determination of suggested allometric equations ranged from 0.6846 to 0.9246 for crown fuel biomass, 0.8308 for crown volume.
Determinants of Users' Satisfaction and Behavioral Intention in Jirisan Trail of Korea
Lee, Hye-Rin ; Kim, Jae-Jun ; Cho, Eun-Kyung ; Kang, Min-Ji ; Han, Sang-Yeol ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 273~282
This study was aimed to identify determinants of users' satisfaction and behavioral intention in Jirisan trail of Korea and provide effective trail building and management strategy. The result of survey by 645 trail users showed that four dimensions were derived from 14 satisfaction items, which were experiential resources, cost resources, information, amenities. Of these dimensions, experiential resources along trails including natural environment, the level of trail development, trail condition, cultural & tourist resources, kindness of residents had the greatest effect on overall satisfaction and behavioral intention, which included revisit intention, recommendation intention and continuance intention. According to analysis by detailed variables, natural environment, road signs, kindness of residents and related information significantly affected overall satisfaction and behavioral intention.
Study on Landscape Preference of Debris Barriers Types
Lee, Sang-Won ; Kang, Mi-Hee ; Lee, Heon-Ho ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 283~291
The purpose of this study was to identify the public's preferences of different types of debris barriers and the impacts of construction materials, design, size, and planting on landscape preferences. On-site survey was carried out in Mt. Palgong during on December, 2009 and a total 122 visitors' data were analyzed. A total of 82 students Yeungnam and Donga University were also questioned in the classes during on December, 2009. Survey results showed that the debris barrier constructed with natural materials such as stone were more preferred and the level of planting around the debris barrier impacted most on the landscape preferences. The results imply that the importance of eco-friendly construction materials and methods has been increased in term of not only environmental conservation but also people's preferences. Therefore, the factors for enhancing landscape of debris barrier should be considered synthetically in terms of construction material, design, size, and planting level.
Study on the Recognition of Forest-Official's and Stakeholders's Toward Improvement of Tree Cutting Permit System
Park, Kyung-Seok ; Lee, Seong-Youn ; Bae, Sang-Won ; Kim, Min-Hee ; Kim, Hyun-Sig ; Baik, Kyung-Soo ; An, Ki-Wan ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 292~304
The purpose of this study is to draw institutional implications for tree cutting permit system improvement in comparison with Korea and foreign countries (German, Japan). A survey about recognition of cutting system and cutting-invigorating factors for two groups in charge of work for cutting permit (forestofficial) and cutting operation (forest owner, tree butcher, forestry association, and forestry corporation) was carried out. The survey provides basic information which is necessary to improve current cutting system. The result of analysis about both German and Japan's cutting system show that clear cutting area to hinder function of forests tends to decrease and flexible final age of maturity considering condition of regional forest not uniform cutting age were applied. As a result of German and Japan's cutting system review flexible cutting system on regional characteristics is used to manage for the purpose of forest regeneration. The survey result about awareness and invigorating factors of cutting system represents that only public official group said final age of pine tree (3.13) and cedar (3.05) was proper and final age of other species of trees should have shortened. In matters of cutover area, current standard is less than 5ha per a felling area and the largest total area limit is 30 ha, only tree butcher, forestry corporation said cutover area must expand. Invigorating factors of current cutting system are reinforcement of cutover area, facility support, enrichment of technical training, increase of equipment support, simplification of administrative procedures, and provision of various benefits. The reinforcement of technical training among them especially represents the statistical significance of the participants' differential recognition.
The Effects of Fertilization on Growth Performances and Physiological Characteristics of Liriodendron tulipifera in a Container Nursery System
Cho, Min-Seok ; Lee, Soo-Won ; Park, Byung-Bae ; Park, Gwan-Su ;
Journal of Korean Forest Society, volume 100, issue 2, 2011, Pages 305~313
Fertilization is essential to seedling production in nursery culture, but excessive fertilization can contaminate surface and ground water around the nursery. The objective of this study was to find optimal fertilization practice of container seedling production for reducing soil and water contamination around the nursery without compromising seedling quality. This study was conducted to investigate growth performance, photosynthesis, chlorophyll fluorescence, and chlorophyll contents of Liriodendron tulipifera growing under three different fertilization treatments (Constant rate, Three-stage rate, and Exponential rate fertilization). Root collar diameter, height, and biomass of L. tulipifera were the highest at Constant treatment. Like growth performance, seedling quality index (SQI) were higher at Constant than at other treatments, but not significantly different among treatments. L. tulipifera showed good photosynthetic capacity at all treatments. Photochemical efficiency and chlorophyll contents were significantly lower at Exponential than at other treatments. Therefore, Exponential fertilization which is 50% fertilizer of other treatments would maximize seedling growth and minimize nutrient loss.