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국내육성 오차드그라스 품종들의 캘러스 형성율 및 식물체 재분화 효율
김기용,강경민,배은경,이인애,임용우,최기준,박근제,손대영,조진기 Plant molecular biology and biotechnology research 2003 Plant molecular biology and biotechnology research Vol.2003 No.-
Comparisons of callus formation ratios from seed explants, callus sizes, regeneration ratios from callus and regeneration efficiency for 4 orchardgrass (Dactylis glomerata L.) varieties (Three were developed in Korea and one was imported from foreign nation) are as follows; Jangbeol 102 (67.0%) has the highest callus formation ratio in 4 weeks incubated callus after bedding the seed explants, but Potomac (68.4%) has the highest ratio in 6-seek callus. Potomac (3.93cm) has the highest callus size in 4-week callus, but Jangbeol 101 (4.32cm) has the highest size in 6-week callus. Jangbeol 101 (17.7%) has the highest plant regeneration ratio in 4-week callus, but Potomac (37.4%) has the highest raion in 6-week callus. Jangbeol 102 (11.5%) has the highest plant regeneration efficiency in 4-week callus, but Potomac (25.6%) has the highest efficiency in 6-week callus.
Analysis of Land Use Change Impact on Storm Runoff in Anseongcheon Watershed
Geun Ae Park,In Kyun Jung,Mi Seon Lee,Hyung Jin Shin,Jong Yoon Park,Seong Joon Kim 大韓遠隔探査學會 2008 大韓遠隔探査學會誌 Vol.24 No.1
The purpose of this study is to evaluate the hydrological impact due to temporal land cover change by gradual urbanization of upstream watershed of Pyeongtaek gauging station of Anseong-cheon. WMS HEC-1 was adopted, and DEM with 200 m resolution and hydrologic soil group from 1:50,000 scale soil map were prepared. Land covers of 1986, 1990, 1994 and 1999 Landsat TM images were classified by maximum likelihood method. The watershed showed a trend that forest & paddy areas decreased and urban/residential area gradually increased during the four selected years. The model was calibrated at 2 locations (Pyeongtaek and Gongdo) by comparing observed with simulated discharge results for 5 summer storm events from 1998 to 2001. The watershed average CN values varied from 61.7 to 62.3 for the 4 selected years. To identify the impact of streamflow by temporal area change of a target land use, a simple evaluation method that the CN values of areas except the target land use are unified as one representative CN value was suggested. By applying the method, watershed average CN value was affected in the order of paddy, forest and urban/residential, respectively.
Analysis of Land Use Change Impact on Storm Runoff in Anseongcheon Watershed
Park, Geun-Ae,Jung, In-Kyun,Lee, Mi-Seon,Shin, Hyung-Jin,Park, Jong-Yoon,Kim, Seong-Joon The Korean Society of Remote Sensing 2008 大韓遠隔探査學會誌 Vol.24 No.1
The purpose of this study is to evaluate the hydrological impact due to temporal land cover change by gradual urbanization of upstream watershed of Pyeongtaek gauging station of Anseong-cheon. WMS HEC-1 was adopted, and OEM with 200 m resolution and hydrologic soil group from 1:50,000 scale soil map were prepared. Land covers of 1986, 1990, 1994 and 1999 Landsat TM images were classified by maximum likelihood method. The watershed showed a trend that forest & paddy areas decreased and urban/residential area gradually increased during the four selected years. The model was calibrated at 2 locations (Pyeonglaek and Gongdo) by comparing observed with simulated discharge results for 5 summer storm events from 1998 to 2001. The watershed average CN values varied from 61.7 to 62.3 for the 4 selected years. To identify the impact of streamflow by temporal area change of a target land use, a simple evaluation method that the CN values of areas except the target land use are unified as one representative CN value was suggested. By applying the method, watershed average CN value was affected in the order of paddy, forest and urban/residential, respectively.
박근애 ( Park Geun-ae ),이미선 ( Lee Mi-seon ),김현준 ( Kim Hyeon-jun ),김성준 ( Kim Seong-joon ) 한국농공학회 2003 한국농공학회 학술대회초록집 Vol.2003 No.-
This study is to trace the change of stream shape using the past series of aerial photographs and compare the land use changes of inland along the stream. For the Gyeong-an national stream, aerial photographs of 1966, 1981 and 2000 was selected and ortho photograph was made with RMSE of 1.25, 0.54, 0.72 pixels, respectively. As apparent changes of the stream, the consolidated reaches of stream with levee construction were straightened and their stream width widened. Especially the stream width of inlet part of Paldang lake was widened almost twice because of the rise of water level by dam construction in 1974.
요인분석 및 CA-Markov기법을 이용한 미래의 도시화 진행 양상 예측기법 개발
박근애 ( Geun-ae Park ),김성준 ( Seong-joon Kim ) 한국농공학회 2007 한국농공학회논문집 Vol.49 No.6
This study is to predict the spatial expansion of urban areas by applying CA (Cellular Automata)-Markov technique considering MCE (multi-criteria evaluation) and MOLA (multi-objective land allocation) of factor analysis. For the 10 administration districts (3677.3 ㎢) including the whole Anseong-cheon watershed, the past six temporal land use data (1973, 1981, 1985, 1990, 1994, 2000) from Landsat satellite images were prepared. During this period, the urban area increased 233.71 ㎢. Using the 36 indices composed of topological characteristics, population and land use change, the final factor map of MOLA was produced through 5 maps of MCE. Using 1990 and 1994 land use data, the 2000 predicted urban area of CA-Markov with factor map showed 0.06 % improvement of absolute error comparing with that of CA-Markov without factor map. By the CA-Markov technique considering factor map, the 2030 and 2060 urban area increased 58.94 ㎢ (0.78 %) and 60.14 ㎢ (0.81 %) respectively comparing with 2000 urban area (313.19 ㎢). The 2030 and 2060 paddy area decreased 93.28 ㎢ (2.54 %) and 93.65 ㎢ (2.55 %) respectively comparing with 2000 paddy area (1383.23 ㎢).