도로녹화 (道路綠化) 및 도로조경기술개발에 관한 연구

우보명,손두식 ( Bo Myeong Woo,Doo Sik Son ) 한국산림과학회 1980 한국산림과학회지 Vol.48 No.1

One of the most important basic problems for developing the new techniques in the field of road landscape planting practices in Korea, is to clarify, analyse, and evaluate the existing technical level through actua] field survey on the various kinds of planting techniques. This study is, therefore, aimed at the good grasp of detail essences of the existing level of road landscape planting techniques through field investigations of the executed sites. In this study, emphasized efforts are made to the detail analysis and systematic rearrangements of such main subjects as; 1) principles and functions of the road landscape planting techniques; 2) essential elements in planning of it; 3) advanced practices in execution of planting of it; 4) and improved methods in maintenance of plants and lands as an entire system of road landscape planting techniques. The road landscape planting techniques could be explained as the planting and landscaping practices to improve the road function through introduction of plants (green-environment) on and around the roads. The importances of these techniques have been recognized by the landscape architects and road engineers, and they also emphasize not on]y the establishment of road landscape features but also conservation of human`s life environment by planting of suitable trees, shrubs, and other vegetations around the roads. It is essentially required to improve the present p]anting practices for establishment of the beautiful road landscape features, specially in planning, design, execution, establishment, and maintenance of plantings of the environmental conservation belts, roadside trees, footpathes, median strips, traffic islands, interchanges, rest areas, and including the adjoining route roads.

우리나라 중부지역의 녹지자연도사정에 관한 연구 - 공주 · 연지군지역의 조사사례를 중심으로 -

우보명,권태호,마호섭,이헌호,이종학 ( Bo Myeong Woo,Tae Ho Kwon,Ho Seop Ma,Heon Ho Lee,Jong Hak Lee ) 한국산림과학회 1984 한국산림과학회지 Vol.64 No.1

As data basic to policy in nature conservation, the Degree of Green Naturality (DGN) survey was usually carried out. This also explains the impact of human interference to natural environment. Gongju gun and Yeongi gun were surveyed in the summer of 1983 to determine the DGN of these districts. Then, the surveyed DGN was compared to the existing standard. The results obtained appeared that the average DGN of these districts ranged about 5.1 to 5.9 and especially the ratio of DGN 7-graded area was high. Because of difficulties in applying the existing standard directly to middle part of Korea, further improvement on the existing standard for ranking or surveying the DGN should be reconsidered.

황폐산지에서의 산불이 삼림식생 (森林植生) 및 토양에 미치는 영향에 관한 연구 (Ⅰ) - 관악산 뱀골계곡에서의 초기영향 -

우보명,권태호 ( Bo Myeong Woo,Tae Ho Kwon ) 한국산림과학회 1983 한국산림과학회지 Vol.62 No.1

The purpose of this study was to measure the changes in soil properties and forest vegetation after surface fire, which had occured on June 5, 1983 in Mt. Gwanag, Kyunggi-do. Moisture content, organic matter and acidity of soil increased just after the fire and then dropped down up to those of unfired areas as time goes. Also total nitrogen, available phosphorous exchangeable base had the similar trend to moisture, organic matter and acidity. Most of the exchangeable bases in surface soil except for sodium were higher than those in sub-soil. No changes in soil texture by the fire were found. Increasers, decreasers, invaders and neutral species could be classified according to the relative importance value of each species. Species diversity was reduced just after the fire and increased gradually afterward. Diversity in the southeast slope was higher than that in the southwest slope. Due to the fire, evenness of woody plants decreased continuously while that of herbs increased. Species similarity was shown greater at fired areas than at unfired areas.

도로비탈면의 경관안정을 위한 기본모델 설정에 관한 연구

우보명 ( Bo Myeong Woo ) 한국산림과학회 1983 한국산림과학회지 Vol.61 No.1

To develope the fundamental models suitable for slope stabilization and scenic effect improvement of the roadside slopes, this study has continuously been conducted for last about 10 years through the field survey and observations on the roadside slopes of 100 plots located in the Capital region. The results obtained could be summarized as follows: 1) In general, due to unsuitable treatments and constructions to the man-made bare slope characteristics of the roadsides, the treatment aims for stabilizing and improving the scenic beauty of the slopes have not been successfully reached in the surveyed regions. 2) Particularly, because of insufficiency of the follow-up maintenance techniques to the roadside slopes treated, denudations of slope scenery established as well as the withering of the vegetation planted have been accelerated for the most part of the slopes treated. 3) 6 fundamental models for the roadside slope treatments have been developed and could be edaptable to the nation-wide purposes. The fundamental models are the model of forest scenery match plantation, roadside scenery establishment, denuded land rehabilitation, rock slope greenification, absolute stabilization, and environmental plantation belt establishment, respectively.

황폐산지에서의 산불이 삼림식생 (森林植生) 및 토양에 미치는 영향에 관한 연구 (Ⅱ)

우보명,권태호,마호섭,이헌호,이종학 ( Bo Myeong Woo,Tae Ho Kwon,Ho Seop Ma,Heon Ho Lee,Jong Hak Lee ) 한국산림과학회 1985 한국산림과학회지 Vol.68 No.1

The second year`s results of surface fire effects on forest vegetation and soil properties and fire tolerance of various tree species were investigated in Mt. Gwanak, Kyunggi-do, successively after the study of the first year`s effect in the same place. Soil moisture contents, organic matters, and most of soil nutrients including exchangeable bases had increased just after fire and went down to become somewhat constant. Available phosphorous at fired area decreased until it became similar to that at unfired area, while pH of subsoil was continuously increasing from just after fire till after 1 year. For Lespedeza and Weigela species, fire tolerance of tree crown was the lowest but reproductive capacity was the highest, And both of them were high for Rhododendron species. More exact classification into Increasers, Decreasers, Invaders and Neutral species was possible in the second year`s study. According to comparison of similarities, it was found that the vegetational structure at fired area is slowly restoring to original state as time goes.

경사지 농업기술 개량을 위한 효과적인 토양보전공법 개발에 관한 연구

우보명 ( Bo Myeong Woo ) 한국산림과학회 1981 한국산림과학회지 Vol.54 No.1

The run-off experiment plots had been established for eight sets of plot comprising foru treatments with two repokcations on 20˚ slope land having the Wait A·Bit Clay soil(locally known), at the Olive River Soil Conservation Centre, Trelawny in Jamaica. The location of plots was about 820 metres m.s.l. and sloped north-west. Each plot size was determined as 40 ㎡ having 2.7 m wide and 15.8 m long along slope. All of the run-off soil and water were collected by using the receiving tanks through the collection troughs and conveyance pipes. these run-off materials were measured and sampled, dried and computed for determination of the soil loss from each treatment of plots. During the first period of experiment for about 10 month which was one crop-year cycle of yam crop. total amount of 1,295 mm rainfall received. The heaviest daily rainfall was recorded as 116.2 mm on August 5 followed by 100.5 mm on August 6, 1980 The soil sediment had been collected and analysed for eleven times during this experiment. Total amounts of soil sediment as over-dried weight by the treatment plot were estimated as 182 ton/ha from treatment IV, respectively. It is recommendable at pre3sent that the treatment III and IV measure which treated with contour mounds with the hillside ditch and grass buffer strip should be adopt4ed for hillside farming particularly with yam cultivation in Jamaica.

사막화방지 및 방사기술개발에 관한 연구 (3) - 중국의 황막사지 녹화기술분석 -

우보명(Bo Myeong Woo),이경준(Kyung Joon Lee),최형태(Hyung Tae Choi),이상호(Sang Ho Lee),박주원(Joo Won Park),왕예선(Li Xian Wang),장극빈(Ke Bin Zhang),손보평(Bao Ping Sun) 한국산림과학회 2001 한국산림과학회지 Vol.90 No.1

This study is aimed to analyze and to evaluate the revegetation and soil conservation technology in desertification-affected sandy land, resulting from the project of $quot;Studies on the desertification combating and sand industry development$quot;. Main native plants for combating desertification : The general characteristics of vegetation distribution in desertified regions are partially concentrated vegetation distribution types including the a) desert plants in low zone of desert or sanddune of depressed basin, b) salt-resistant plants around saline lakes, c) grouped vegetation with Poplar and Chinese Tamarix of freshwater-lakes, saline-lakes and river-banks, d) gobi vegetation of gravel desert and e) grassland and oasis-woods around the alluvial fan of rivers, etc. Generally, Tamarix ehinensis Lour., Haloxylon ammodendron Bunge., Calligonum spp., Populus euphratica Oliver., Elaeagnus angustifolia L., Ulmus pumila L., Salix spp., Hedysarum spp., Caragana spp., Xanthoceras sorbifolia Bunge., Nitraria tangutorum Bobr., Lespedeza bicolor, Alhagi sparsifolia Shap.. Capparis spinosa L_ Artemisia arenaria DC., etc. are widely distributed in desertified regions. It is necessary for conducting research in the native plants in desertified regions. Analysis of intensive revegetation technology system for combating desertification : In the wind erosion region, the experimental research projects of rational farming systems (regional planning, shelterbelts system, protection system of oasis, establishment of irrigation-channel networks and management technology of enormous farmlands, etc.), rational utilization technology of plant resources (fuelwood, medicinal plants, grazing and grassland management, etc.), utilization technology of water resources (management and planning of watershed, construction of channel and technology of water saving and irrigation, etc.), establishment of sheltetbelts, control of population increase and increased production technology of agricultural forest, fuelwood and feed, etc. are preponderantly being promoted. And in water erosion region, the experimental research projects of development of rational utilization technology of land and vegetation, engineering technology and protection technology of crops, etc. are being promoed in priority. And also, the experimental researches on the methods of utilization of water (irrigation, drainage, washing and rice cultivation, etc.), agricultural methods (reclamation of land, agronomy, fertilization, seeding, crop rotation, mixed-cultivation and soil dressing works, etc.) and biological methods (cultivation of salt-resistant crops and green manure and tree plantation, etc.) for improvement of saline soil and alkaline soil in desertified-lands are actively being promoted. And the international cooperations on the revegetation technology development projects of desertified-lands are sincerely being required.

암절취 훼손비탈면에 대한 환경생태적으로 안정된 녹화공법에 관한 연구 (2) - 산립표층토를 이용한 종비토뿜어붙이기공법의 시공효과 분석 -

우보명,김경훈 ( Bo Myeong Woo,Kyung Hoon Kim ) 한국산림과학회 1998 한국산림과학회지 Vol.87 No.3

The purpose of this study was to evaluate the effect of new materials with forest topsoil far hydroseeding measures that is environmentally and ecologically stable revegetation measures on rock cut-slopes. Field hydroseeding experiment was used with a completely randomized design at highway rock cut-slopes in April, 1997. Results obtained in this study were summarized as follows: Particle size distribution of 3 mixed-soil materials that consisted of forest topsoil, decomposed granite soil, compost, sludge, and bottom ash did not show a significant difference. As appending the amount of forest topsoil, soil bulk density was increased. Soil hardness was slightly increased in early period, and then decreased with the flourishing of plants. The number of individuals increased, more than 3,000 seedlings/㎡, after 1 month, and it was decreased as time passes because of competition between the seeded species and the naturally emerged species. In addition to the seeded species, seeding plot has more than 6 species (Rubus crataegifalius, Eleusine indica, Erigeron canadensis, Lycopersicon esculentum var. cerasiforme, etc.) per ㎡ were naturally appeared in the first year. From the viewpoint of species diversity promotion, the capability of using forest topsoil as seed bank sources was high. In order to apply in the field, the investigation and analysis of topsoil availability (quantity and quality of seed source, soil texture and organic composition) should be carried out beforehand.

암절취 비탈면에 대한 훼손비탈면에 대한 환경생태적으로 안정된 녹화공법에 관한 연구 (1) - 산림표층토를 이용한 녹화토의 효능분석을 위한 실내실험 -

우보명,김경훈 ( Bo Myeong Woo,Kyung Hoon Kim ) 한국산림과학회 1998 한국산림과학회지 Vol.87 No.2

This study was conducted to evaluate the availability of the forest topsoil as a source of the $quot;Native-soil(seed-fertilizer-soil materials)$quot; for the hydroseeding measures which are environmentally and ecologically stable revegetation measures on rock cut-slopes. Soil sampling and factorial experiments were used with a split plot design(main plot : forest soil type and soil spraying thickness, subplot : seeding rate) in 1996. Results obtained in this study were summarized as follows : Because of the competition between the seeded(introduced) species and the native species, the number of naturally emerged species in the non-seeded plot and that of in the seeded plot were 5∼9species/0.07㎡ and 2∼6species/0.07㎡, respectively. As increasing the seeding rate(introduced species), the appearance ratio of naturally emerged species was decreased. The total number of individuals was high in the plot which used coniferous forest soil as a seed source, however the ratio of the individuals of naturally emerged species was high(30%) in the plot which used deciduous forest soil. The usage of the forest topsoil as seed bank source onto the $quot;Native-soil$quot; materials for hydroseeding could be reduce the seeding rate to 1,000 seedlings/㎡. According to the several factors which are competition between seeded species and naturally emerged species, dryness of soil materials, and seed burial, spraying thickness with more than 5㎝ was suitable for the growth of plants in variety.

사막화방지 및 방사기술개발에 관한 연구 ( 4 ) - 중국의 사구고정 및 방사공법분석 -

우보명(Bo Myeong Woo),이경준(Kyung Joon Lee),최형태(Hyung Tae Choi),이상호(Sang Ho Lee),박주원(Joo Won Park),왕례선(Li Xian Wang),장극빈(Ke Bin Zhang),손보평(Bao Ping Sun) 한국산림과학회 2001 한국산림과학회지 Vol.90 No.3

This study is aimed to analyze and to evaluate the technology development for sanddune fixation and sandy land conservation in China, resulting from the project of $quot;Studies on the desertification combating and sand industry development$quot;. There are various types of sanddunes, including shrub-bunch type, dendritic, honey combed lattice, crescentic, parabolic, pyramid, complex and irregular types, domed, and so on. The height distribution ratios of these sanddunes are 13% of less than 5m, 17% of 6∼10m, 18% of 11∼25m, 14% of 26∼50m, 28% of 51∼100m, 10% of more than 100m, and so on. In dry land of China, shifting direction of the sanddune is mainly varying with main direction of wind, but types of shifting sanddunes have many differences in accordance with region, topography, size and shape of sanddunes. The main sanddune fixation technologies could be divided into the bio-ecological measures, physical measures and chemical measures. The bio-ecological measures include such vegetation measures as shrub-grasses measures, sandbreaks between sand dunes, sand fixation shelterblets and establishment of farmland shelterbelts, etc. The physical measures include establishment of high-sanddune stabilization walls and low-sanddune stabilization walls, sanddune fixation levees and coverage method with sediment clay, etc. The chemical measures include fixation-materials spraying and synthetical liquid spraying methods, etc. Besides, irrigation and sand settlement measures, shifting sand trapping channel, ditchsand fixation measures, etc. have been effectively applied.