산지의 삼림(森林)지이용과 방목지(放牧地)이용이 수자원생산 및 토사유출에 미치는 영향

우보명 한국임학회 1982 한국산림과학회지 Vol.58 No.1

산림소유역의 장 단기 유출 해석을 위한 강우 - 유출모형의 개발

우보명,김재수,이헌호,최형태 ( Bo Myeong Woo,Je Su Kim,Heon Ho Lee,Hyung Tae Choi ) 한국산림과학회 1998 한국산림과학회지 Vol.87 No.1

The purpose of this study was to develop the Rainfall-Runoff Model for a long and short term runoff analysis in small forested mountain watersheds. This model was derived from tank model. This model is composed of four tank. Tank I, Tank II, TankIII, and TankIV represent interception loss in forest canopy, direct runoff, base flow, and surface flow component, respectively. This model was tested with two experimental watersheds, located in southern part of Korea. As the result, this model had potentials for simulating and analyzing the long and short term runoff in small forested watersheds.

북한산국립공원의 등산로 훼손, 그 예방과 정비책이 시급하다

우보명,U, Bo-Myeong 한국자연공원협회 1988 한국자연공원 Vol.39 No.-

야계의 (野溪) 월류발생에 (越流發生) 관한 연구 - 관악산 삼성천에서의 시험사례 -

우보명,김경하,정도현 ( Bo Myeong Woo,Kyong Ha Kim,Do Hyeon Jeong ) 한국산림과학회 1988 한국산림과학회지 Vol.77 No.3

To investigate the cause of overflow in the torrential stream, the estimated peak flow of run-off and the maximum tarring capacity of the stream were measured at the upstream of Samsung-cheon located in Kwanak Aboretum during July, 1987. The results obtained from this study could be summarized as follows 1. The surveyed catchment area was 477㏊, which was 116 of the designed area (410㏊) by the plan. 2. The maximum rainfall intensity measured was 99.5㎜/hr and was almost same as the designed intensity (100㎜/hr) . 3. The surveyed run-off coefficient was 0.672 that was about twice as much as designed one(0.35). 4. The surveyed peak flow of run-off was 88.59㎥/sec, 222% as large the designed one(39.9㎥/sec). 5. The designed cross-sectional area of the stream was 17.25㎡, which was 68% of the designed one 125.43㎡. 6. The surveyed hydraulic mean radius was 0.94m, which was shorter than the designed one(1.28m). 7. The surveyed mean stream-bed gradient(0.998%) was almost the same as the designed one(1.00%). 8 The surveyed maximum velocity of flow passing through the stream was 2.87m/sec, 78.0 of the designed one(3.68m/sec). 9 The surveyed run-off capacity of the stream was 49.51㎥/sec, 53% of the designed one (93.5㎥/sec).

실험적 답압처리에 (踏壓處理) 의한 임상환경변화 (林床環境變化) (Ⅰ)

우보명,오구균,윤호중 ( Bo Myeong Woo,Koo Kyoon Oh,Ho Joong Youn ) 한국산림과학회 1988 한국산림과학회지 Vol.77 No.1

This study was conducted to examine the effects of trampling intensity and frequency on the change of forest bed soil and vegetation by experimental trampling. 23 experimental lanes(0.3 × 5.0m) were established at non-trampled Quercus acutissima stand in Suweon, Gyunggi-Do, Korea. And soil compaction and ground vegetation were examined during and after 4 weeks trampling. Increasing in trampling intensity resulted in decreasing increment rate of soil compaction and after 400 passes of trampling, soil hardness showed 11.32㎏·㎝^(-2), (23.8㎜) which affected root growth badly. At the same trampling intensity, soil compaction was high where trampling was spread over a longer period of time. The difference of soil compaction by trampling frequency was not significant below 200 passes, but 16X(every other day trampling) type resulted in the highest soil compaction over 400 passes of trampling intensity. The relative coverage of vegetation was more severely decreased than the relative density by trampling, 16X type of Trampling frequency resulted in most servere vegetational change and difference among trampling frequencies showed significance in case of 200 passes, contrasting to soil compaction.

廢炭鑛地의 山林毁損地復舊 및 廢石流失防止對策에 관한 硏究

우보명 서울대학교 농업개발연구소 2000 농업생명과학연구 Vol.4 No.-

The project for rehabilitation and revegetation of the abandoned coal-mine lands is a very important national environmental restoration project in the view point of rehabilitation and revegetation of denuded forest-lands caused by coal mining as well as restoration of disturbed natural environment and control of the variable pollutions. In Korea, because a large number of coal mines had been developed in order to fill up abundantly consumption of coal as a major energy source in the developing period, a lot of denuded forest-lands caused by coal mining had distributed in the whole country. And, due to the absence of effective rehabilitation and revegetation works on the denuded forest-lands caused by coal-mining, most of them had been remained with being damaged. In 1990, area of the abandoned coal-mine lands, requiring the rehabilitation and revegetation works, was about 1,437.1 ha. For the past ten years('90~'99), about 1,081.8 ha out of them had been rehabilitated and revegetated, and the rehabilitation planning area was about 33.0 ha in 2000. so, remaining area out of abandoned coal-mine lands will be about 322.3 ha after 2000. In principle, after abandoning coal-mine, mine owners must carry out the rehabilitation and revegetation works on the abandoned mine lands by themselves. But, most of mine owner were in financial difficulty after abandoning coal-mine, so that principle couldn't have obtained the desired effects. However, due to application of the "conventional erosion control measure and techniques" to the rehabilitation and revegetatino measures on the abandoned coal-mine lands, the results and effects of the works excuted have not been successful. Therefore, unique measures and techniques for rehabilitation and revegetationm of the abandoned coal-mine lands will have to be developed, especially including development of new techniques on the soil-dressing and soil-covering, seed spray and hydro-seeding measures with seed-fertilizer-soil materials as the mechanized measures, and using of new materials for the tree planting and seeding measures.

산지사방공작물의 (山地砂防工作物) 사후관리기술체계설정을 위한 조사연구

우보명,이돈구 ( Bo Myeong Woo,Don Koo Lee ) 한국산림과학회 1987 한국산림과학회지 Vol.76 No.2

To evaluate damage status and necessities of repair works on the forest-side erosion control structures constructed from 1966 to 1986 in Korea, developmental procedures of erosion control structures from the standard unit-cost tables established by the Forestry Administration every year, existing counter-measures for disaster erosion control system administrated by the government organization and existing status of each structure at constructed site were investigated and analyzed integrally. About 10-15% of the constructed forest erosion control structures were required to be repaired as a result of the investigation. It is actually incapable of repairing the damaged forest erosion control structures caused by excessive run-off and floodings under the existing forest-side erosion control systems. Therefore, it is necessary to put regularly repair erosion control system that will be secured by national budgetary pre-allocation system. Especially, it is also necessary to frame a new system that repair erosion control works by national budget (central government) should be possible for any scale of damages in case of the erosion control projects for the disaster counter-measures. The results of this research could be adopted as important policy data for erosion control policy-making in forest-side in Korea.

사막화방지(沙漠化防止) 및 방사기술개발(防沙技術開發)에 관한 연구(硏究)(II) - 중국(中國)의 경관(景觀)-생태(生態) 방호림조성기술(防護林造成技術) 및 효과분석(效果分析) -

우보명,이경준,전기성,김경훈,최형태,이승현,이병권,김소연,이상호,전정일,Woo, Bo-Myeong,Lee, Kyung-Joon,Jeon, Gi-Seong,Kim, Kyung-Hoon,Choi, Hyung-Tae,Lee, Seung-Hyun,Lee, Byung-Kwon,Kim, So-Yeon,Lee, Sang-Ho,Jeon, Jeong-Ill 한국환경복원기술학회 2000 한국환경복원기술학회지 Vol.3 No.3

The shelterbelts are very important to conserve and protect the sandy land, vegetation coverage, farmland, livestock and human life in the desertified land. The shelterbelts are constructed by the several row-plantings of high-adaptable species in the desertified land. The shelterbelts have various kind of type, and there are shelterbelts for conservation of farmland in dry the region, the protective shelterbelts (windbreaks for blowing-sand, artificial sanddune fixation by revegetation, and construction of farmland shelterbelts to protect farmland and pasture from wind erosion, etc.) in the semi-dry steppe, shelterbelts around the villages and oasis for sanddune fixation, shelterbelts for protection of railroads, and so on. The shelterbelts consist of main she1terbelts and minor shelterbelts. The main shelterbelts were constructed by being perpendicular to main wind direction, and the minor shelterbelts were constructed by being perpendicular to the main shelterbelts. Generally, the width of shelterbelts is 8~20m, and the number of row-planting is 4~10. The grid sizes of shelterbelts networks are $400{\times}400m$, $300{\times}500m$, $100{\times}200m$, and so on, and there are ventilation type and closing type in the type of shelterbelt. The width, number of row-planting, grid size and type of shelterbelt are selected by the local characteristics. The effects of shelterbelts are mainly the climate improvement and mitigation, such as prevention of occurrence of strong wind, cold wind and blowing-sand. And, the other effects of shelterbelts are effect of reforestation, increase of agricultural productions, establishment of greenbelts and green forests, construction of landscape-eco shelterbelts, improvement of life environment of local villages, supply of fuel wood and agricultural wood, land amelioration, effect of revegetation and restoration of desertified land, and so on. The kinds of the tree species mainly used for the construction of shelterbelts have differences between regions, but main species are Populus euphratica, Populus simonii, Populus bolleana, Populus tomentosa, Salix flavida, Salix mongolica, Tamarix chinensis, Hedysarum scoparium, and so on.

사막화방지 및 방사기술 개발

우보명 서울대학교 농업개발연구소 1999 농업생명과학연구 Vol.3 No.-

China is one of the developing countries with vast desertification affected areas and a certain percentage of her population is living in the affected areas. As a large country with dense population and complex environmental conditions, China is fully aware that the desertification combating is of importance to the global sustainable development of environment and economy. Desertification affected areas in China are mainly distributed in arid, semi- arid and dry sub-humid areas in China, covering 471 countries in 18 provinces and autonomous regions in the west part of the Northeast, the northern part of the North China and the most regions of the Northwest China. The area affected by Desertification in China is approximately 2.622 million ㎢. It covers 27.3% of the total territory of China. It is estimated that the annual spreading ratio of desertification in China is 2,460 ㎢. After Republic of Korea and P. R. China setup diplomatic relation in 1993 and based on the agreement between two countries, and in the 4th Sino-Korea Science & Tech. Cooperation Commission held in Seoul, Korea in Dec. 12, 1996. The joint research project titled Desertification combating and Sand Industry Development has been approved between Beijing Forestry University and Seoul National University. The duration of cooperation for first stage is from 1997 to 2000, and the main contents of the Joint Research Project are the studies of silviculture technology for landscape-eco-shelterbelt system construction, introduce and test of fine plant species for combating desertification, the uses of new materials & high tech. In desertified-land development, and sand industry development in desertification area.

삼림의 수관차단(樹冠遮斷)에 관한 기초적 연구

우보명,김경하 한국임학회 1987 한국산림과학회지 Vol.76 No.1

森林이 물의 循環에 미치는 定量的인 영향을 알아보기 위해 北緯 37°25', 東經 195°에 위치한 서울대학교 부속기관인 관악수목원내에 리기다소나무가 主種인 針葉樹林分과 신갈나무가 主種인 闊葉樹林分에 10×10m의 시험구를 각각 설치하였다. 1986年 7月부터 10月까지 4개월 동안 26회의 降雨에 대한 樹冠通過雨量 및 滴下雨量(throughfall and drip)과 樹幹流下量(stem flow)를 측정하였다. 측정결과, 총강우량은 753.8㎜였으며 이와 비교하여 수관통과우량은 침엽수에서 76.5%, 활엽수에서 81.3%였으며 수간류하량은 침엽수에서 2.7%, 활엽수에서 1.2%로 나타났다. 임외강우량에서 임내강우량을 제한 平均樹冠遮斷量은 침엽수가 20.8%로 활엽수의 17.5%보다 높게 나타났다. 총강우량과 통과우량과의 관계는 침엽수의 경우 T_(f㎜) = 0.8318P - 1.9307 (R²=0.988, P<0.01)이며 활엽수는 T_(f㎜) = 0.88246P - 2.016 (R²=0.984, P<0.01)로 나타났다.