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| 1 | Temperature and moisture sensitivities of CO_(2) efflux from lowland and alpine meadow soils显示文摘Aims This study was conducted to(i)determine if soil CO_(2) efflux is more sensitive to temperature changes in alpine areas than in lowland grasslands,(ii)examine the effects of temperature and moisture on soil respiration,and(iii)evaluate the potential for change in soil carbon storage in response to global warming in different grasslands in East Asia.Methods We collected soil samples from two different temperate grasslands,an alpine meadow on the Qinghai-Tibetan plateau,China,and a lowland grassland in Tsukuba,Japan.The CO_(2) emission rate was then measured for these soil samples after they were incubated at 25℃ and 60%of the water holding capacity for 7 days.Important Findings(i)The soil respiration rate was more sensitive to temperature change in the alpine soil than in the lowland soil.The average Q_(10) was 7.6 for the alpine meadow soil but only 5.9 for the lowland soil.The increased sensitivity appears to be due,at least in part,to the soil organic carbon content and/or soil carbon to nitrogen ratio,especially in the surface layer.(ii)The relationship between the CO_(2) emission rate and the soil moisture content revealed that the alpine meadow had a more clear response than the lowland soil.(iii)This study suggests that changes in soil moisture and soil temperature may have larger impacts on soil CO_(2) efflux in the alpine meadow than in the lowland grassland evaluated here. | Sanguk Suh Eunhye Lee Jaeseok Lee | 2009 | Journal of Plant Ecology2009，2，4： | 6 |
| 2 | Changes in spatial variations of sap flow in Korean pine trees due to environmental factors and their effects on estimates of stand transpiration显示文摘It is difficult to scale up measurements of the sap flux density(J_S) for the characterization of tree or stand transpiration(E) due to spatial variations in J_S and their temporal changes.To assess spatial variations in the sap flux density of Korean pine(Pinus koraiensis) and their effects on E estimates,we measured the J_S using Granier-type sensors.Within trees,the J_S decreased exponentially with the radial depth,and the J_S of the east aspects were higher than those of the west aspects.Among trees,there was a positive relationship between J_S and the tree diameter at breast height,and this positive relationship became stronger as the transpiration demand increased.The spatial variations that caused large errors in E estimates(i.e.,up to 110.8 % when radial variation was ignored) had varied systematically with environmental factors systematic characteristics in relation to environmental factors.However,changes in these variations did not generate substantial errors in the E estimates.For our study periods,the differences in the daily E(E_D) calculated by ignoring radial,azimuthal and tree-to-tree variations and the measured E_D were fairly constant,especially when the daily vapor pressure deficit(D_D)was higher than 0.6 k Pa.These results imply that the effect of spatial variations changes on sap flow can be a minor source of error compared with spatial variations(radial,azimuthal and tree-to-tree variations) when considering E estimates. | Minkyu MOON Taek-yu KIM Juhan PARK Sungsik CHO Daun RYU Sanguk SUH Hyun Seok KIM | 2016 | Journal of Mountain Science2016，13，6： | 2 |
| 3 | Water removal characteristics of proton exchange membrane fuel cells using a dry gas purging method 显示文摘 | Lee Sangyeep Kim Sanguk Kim Hyoungjuhn | 2008 | Journal of Power Sources2008，180，： | 1 |
| 4 | Flexible multiagent decision - making under time pressure, IEEE Transactions on Systems显示文摘 | NOH Sanguk GMYTRASIEWICZ Piotr J | 2005 | Man Cybernetics - Part A: Systems and Humans2005，35，5： | 1 |
| 5 | Design, Implementation, and Validation of KOMPSAT-2 Software Simulator 显示文摘 | Sanguk Lee Sungki Cho Byoung-Sun Lee Jaehoon Kim | 2005 | ETRI Journal (S1225-6463)2005，27，2： | 1 |
| 6 | Attitude control of geostationary satellite by using sliding mode control显示文摘 | Lee Sanguk Lee Jeong-Sook | 1996 | J Astron Space Sci1996，13，3： | 1 |
| 7 | Supercritical carbon dioxide extraction of perilla Oil显示文摘 | Wonyoung Lee Sangdo Yeo | 1996 | Foods and Biotechnology1996，5，4： | 1 |
| 8 | Orbital rendezvous using two-step sliding mode control显示文摘 | Park Jong-Uk Choi Kyu-Hong Lee Sanguk | 1999 | Aerospace Science and Tech-nology1999，3，4： | 1 |
| 9 | Compiling network traffic into rules using soft computing methods for the detection of flooding attacks显示文摘 | SANGUK N JUNG G KYUNGHEE C | 2008 | Applied Soft Computing2008，8，3： | 1 |
| 10 | Galileo Return-Link Experiment using Galileo Receiver and Simulator显示文摘 | Jeom-Hun Lee Inone Joo Sanguk Lee | 2013 | IEEE2013，，： | 1 |
| 11 | Integrins in mechanotran- sduction显示文摘 | Tyler DR Brian GC Sanguk Y | 2013 | Current Opinion in Cell Biology2013，25，5： | 1 |
| 12 | Supercritical carbon dioxide extraction of perilla oil显示文摘 | KIM Sanguk LEE Wonyoung YEO Sangdo | 1996 | Foods and Biotechnology1996，5，4： | 1 |
| 13 | Variation of flavonoids contents in plant parts of mungbean显示文摘 | DongKwan K Sanguk C Jlmong K | 2008 | Korean Journal o Crop Science/Hanguk Jakmul Hakhoe Chi2008，53，3： | 1 |
| 14 | Pyrolysis characteristics of refuse derived fuel in a pilot-scale unit 显示文摘 | BINLIN D SANGUK P SUNGJIN L | 2007 | Energy & Fuels2007，21，6： | 1 |
| 15 | Pyrolysis characteristics of refuse derived fuel in a pilot scale unit 显示文摘 | BINLIN D SANGUK P SUNGJIN | 2007 | Energy & Fuels2007，21，： | 1 |
| 16 | Compiling Network Traffic into Rules Using Soft Computing Methods for the Detection of Flooding Attacks显示文摘 | Sanguk N Gihyun J Kyunghee C | 2008 | Applied Soft Computing2008，8，3： | 1 |
| 17 | Computer vision techniques for construction safety and health monitoring显示文摘 | JoonOhSeo SangUk Hart SangHyun Lee Hyoungkwan Kim | 2015 | Advanced Engineering Informatics2015，，29： | 1 |
| 18 | Effects of alfalfa leaf extracts and phenolic allelochemieals on early seedling growth and root morphology of alfalfa and barnyard grass 显示文摘 | CHON Sanguk CHOI Seongkyu JUNG Sunyo | 2002 | Crop Prot2002，20，10： | 1 |
| 19 | Compiling network traffic into rules using soft computing methods for the detection of flooding attacks显示文摘 | Sanguk Noh Gihyun Jung Kyunghee Choi Cheolho Lee | 2007 | Applied Soft Computing Journal2007，，3： | 1 |
| 20 | Effects of light, growth media and seedling orientation on bioassay of alfalfa autotoxicity 显示文摘 | SANGUK C COUTTS JH NELSON CJ | 2000 | Agronomy Journal2000，92，4： | 1 |
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