조류 도입에 의한 가로수 체계 선호도 분석

박인환,김영희,장갑수,정보광,김태호 慶北大學校農業科學技術硏究所 2007 慶北大農學誌 Vol.25 No.-

This research to streets at Daegu, and view adjective how people react when draw a bird into interior in city utilize and examine becoming direction of street trees system. Findings on survey, citizens appear by average 2.87 in management degree of street trees and average 2.76 in various of species of trees, discontent thing more or less by average 2.91 in satisfaction of the beauty, and demonstrate high shame from satisfaction for season stuff to comparative high 3.24, generally, citizens appear by there are parts to improve by do dissatisfaction about street trees system at Daegu. Also, street trees 2 lines plantings for a bird is average 3.05, shows affirmative feedback about that shrub utilization for a bird see high numerical value by average 3.4 and people draw a bird to space of city. Therefore, construct street trees friendly to the nature and be considered to need to re-establish set street trees environment in citizens preference to recover city ecosystem. As result that examine reaction which treat in street trees planting programs to draw birds into city through view adjective, Likert scales about 2 lines plantings of street trees and additional planting of shrub show affirmative feedback by average 3.4 both ordinary people and specialist group, if people want to draw birds into city by various of method, various research should be accomplished.

Relating Hyperspectral Image Bands and Vegetation Indices to Corn and Soybean Yield

Jang Gab-Sue,Sudduth Kenneth A.,Hong Suk-Young,Kitchen Newell R.,Palm Harlan L. The Korean Society of Remote Sensing 2006 大韓遠隔探査學會誌 Vol.22 No.3

Combinations of visible and near-infrared (NIR) bands in an image are widely used for estimating vegetation vigor and productivity. Using this approach to understand within-field grain crop variability could allow pre-harvest estimates of yield, and might enable mapping of yield variations without use of a combine yield monitor. The objective of this study was to estimate within-field variations in crop yield using vegetation indices derived from hyperspectral images. Hyperspectral images were acquired using an aerial sensor on multiple dates during the 2003 and 2004 cropping seasons for corn and soybean fields in central Missouri. Vegetation indices, including intensity normalized red (NR), intensity normalized green (NG), normalized difference vegetation index (NDVI), green NDVI (gNDVI), and soil-adjusted vegetation index (SAVI), were derived from the images using wavelengths from 440 nm to 850 nm, with bands selected using an iterative procedure. Accuracy of yield estimation models based on these vegetation indices was assessed by comparison with combine yield monitor data. In 2003, late-season NG provided the best estimation of both corn $(r^2\;=\;0.632)$ and soybean $(r^2\;=\;0.467)$ yields. Stepwise multiple linear regression using multiple hyperspectral bands was also used to estimate yield, and explained similar amounts of yield variation. Corn yield variability was better modeled than was soybean yield variability. Remote sensing was better able to estimate yields in the 2003 season when crop growth was limited by water availability, especially on drought-prone portions of the fields. In 2004, when timely rains during the growing season provided adequate moisture across entire fields and yield variability was less, remote sensing estimates of yield were much poorer $(r^2<0.3)$.

Relating Hyperspectral Image Bands and Vegetation Indices to Corn and Soybean Yield

Gab Sue Jang,Kenneth A. Sudduth,Suk Young Hong,Newell R. Kitchen,Harlan L. Palm 大韓遠隔探査學會 2006 大韓遠隔探査學會誌 Vol.22 No.3

Combinations of visible and near-infrared (NIR) bands in an image are widely used for estimating vegetation vigor and productivity. Using this approach to understand within-field grain crop variability could allow pre-harvest estimates of yield, and might enable mapping of yield variations without use of a combine yield monitor. The objective of this study was to estimate within-field variations in crop yield using vegetation indices derived from hyperspectral images. Hyperspectral images were acquired using an aerial sensor on multiple dates during the 2003 and 2004 cropping seasons for corn and soybean fields in central Missouri. Vegetation indices, including intensity normalized red (NR), intensity normalized green (NG), normalized difference vegetation index (NDVI), green NDVI (gNDVI), and soil-adjusted vegetation index (SAVI), were derived from the images using wavelengths from 440 nm to 850 nm, with bands selected using an iterative procedure. Accuracy of yield estimation models based on these vegetation indices was assessed by comparison with combine yield monitor data. In 2003, late-season NG provided the best estimation of both com (r2=0.632) and soybean (r2=0.467) yields. Stepwise multiple linear regression using multiple hyperspectral bands was also used to estimate yield, and explained similar amounts of yield variation. Corn yield variability was better modeled than was soybean yield variability. Remote sensing was better able to estimate yields in the 2003 season when crop growth was limited by water availability, especially on drought-prone portions of the fields. In 2004, when timely rains during the growing season provided adequate moisture across entire fields and yield variability was less, remote sensing estimates of yield were much poorer (r2<0.3).

연구논문 : 토지이용 제한인자를 활용한 농업적 토지이용 적합성 분석 -경상남도 창녕군 이방면을 대상으로-

장갑수 ( Gab Sue Jang ),박인환 ( In Hwan Park ) 한국환경영향평가학회 2006 환경영향평가 Vol.15 No.6

레이다 영상을 활용한 호우피해지역 분석

장갑수 ( Gab Sue Jang ),임상규 ( Sang Kyu Rim ),홍석영 ( Suk Young Hong ),정석재 ( Sug Jae Jung ),박병식 ( Beyng Sik Park ),정기열 ( Ki Yeol Jung ),박인환,김상효 ( Sang Hyo Kim ) 한국토양비료학회 2003 한국토양비료학회 학술발표회 Vol.2003 No.1

도시녹지 내 주요 식물상의 개엽시기 및 잎의 성장 특성 비교

장갑수 ( Gab Sue Jang ) 한국환경복원기술학회(구 한국환경복원녹화기술학회) 2012 한국환경복원기술학회지 Vol.15 No.2

Global climate change and urban heat island have been the main factors which changed leaf burst timing and leaf growth performance in urban forests, Therefore, the ecosystem in urban forests were modified and the types and composition of wildlives, living in the urban forests, were desperately changed due to the urban heat island. This study was done to identify phenological phenomena appeared in urban forests due to the urban climate change by comparing the morphological changes of leaves due to the change of temperature in Spring. The study focused on nine urban forests distributed in Daegu city, where weekly temperature and the morphological changes of the plants were mainly observed. Urban forests had different temperature depending on where each was located in the urban area. The difference of temperature in forests in and outside the urban area was verified by SPSS (Statistical Package for the Social Sciences), which divided the urban forests into about three groups; the one located outside the city, another group located in the middle of the city, and the other located close to the outside forests. The forests located in the middle of the city were showing the earlier leaf burst timing and leaf growth performance, while forests, distributed outside the city, were showing relatively late leaf burst timing and leaf performance.

Distribution Characteristics By Species and Comparison of Social Wasps in Two Metropolitan Cities (Busan, Daegu)

Moon-Bo Choi,Gab-Sue Jang,Seul-Ong Kim,Tae-Su Kim,Gwan-Ik Gwon,Jeong-Kyu Kim,Jong-Wook Lee 한국응용곤충학회 2013 한국응용곤충학회 학술대회논문집 Vol.2013 No.04

This study selected 10 species commonly emerging in Busan and Daegu showing distinct green structure distributions, and distribution differences were mapped and analyzed according to city of origin. As for G-IS (Green-Inhabiting Species) of both cities, there were six species, including V. mandarinia, V. ducalis, V. crabro flavofasciata, Vl. koreensis koreensis, Pa. indica, and P. snelleni, which mostly inhabited urban source green and satellite green structures. As for GU-IS (Green & Urban-Inhabiting Species), there were two species, V. simillima simillima and V. analis parallela, which nested at diverse sites and showed greater preference for green structures. On the other hand, U-IPS (Urban-Inhabiting Preference Species) consisted of two species, V. velutina nigrithorax and P. rothneyi koreanus, which nested at almost all sites, including urban and urban green areas, and were found to adapt well to an urban environment based on their far higher rate of urban nesting as compared to GU-IS species. In comparing emergence rates among the four urban GU-IS and U-IPS species in Busan and Daegu, regular distribution was mostly observed within the city of Busan, which is well equipped with a green network, whereas Daegu, which lacks green structure connectivity, showed its greatest distribution of species nearby urban green areas. Also this study shows that in Daegu with longer distance between green, U-IPS emerged up to far site beyond green areas as compared to Busan, which has short distances between green areas.

How to release shallow nostril stenosis after pediatric trauma?

Gab-Kyun Lee,Seok Hyun Kim,Hyo Beom Jang,Da-Hee Park,Sue Jean Mun 대한미용의학회 2023 대한미용의학회지 Vol.7 No.2

Nostril or vestibular stenosis is a rare disease that usually occurs after trauma, infection, or burns in acquired cases. Nostril stenosis in pediatric cases is even rarer; however, it must be considered after trauma. Nostril stenosis involves the proliferation of secondary fibrous tissue in damaged subcutaneous tissues, resulting in a circumferential scar that leads to nasal obstruction on the involved side. Because each case of vestibular stenosis is diverse, no standard treatment has been established. Here, we present cases of successfully treated posttraumatic shallow nostril stenosis in pediatric patients and highlight the importance of early surgery.

금북정맥 주변 산림조각의 경관생태학적 해석

장갑수,Jang, Gab-Sue 한국조경학회 2007 韓國造景學會誌 Vol.35 No.1

The objective of this study was to delineate forest patches in the cities around the Geum-buk mountains at the north of the Geum River using multiplesatellite remote sensing data. Landsat visible and near-infrared satellite images obtained at multiple dates in the growing season were used to create a forest distribution map. Fragstats 3.3 was used to get the landscape indices delineating the distribution of forest patches. Additional ground truth data was used to assess the accuracy of the classification. Factor analysis was used to get the 26 landscape indices clustered into 4 factors. Factor I was labeled as' size of forest patches', factor II as 'fragmentation of forest patches', factor III as 'shape of forest patches', and factor IV as 'complexity of forest patches'. Factor I described large patches and their core area, while others did small patches and their shape and complexity. Cities including Cheonan, Gongju, Cheongyang, and Boryeong near the main ridge of the Geumbuk Mtns. had a small number of large-sized forest patches. However, cities including Taean, Seosan, Dangjin, Hongseong near the ridge of the western Geumbuk Mtns. had a large number of small-sized forest patches. Finally, this study showed that the region near the coast line in Chung-nam province has various types of forest patches having an irregular forest edge due to the elevation and slope lower than the one of the region far from the coast line which is near the ridge of the Geum-buk Mountains. Remote sensing data were useful to understand the distribution of forest patches, and landscape indices could be keys to delineate the relationship between forest patches. And the factor analysis, which simplified 26 landscape indices into 4 landscape patterns allowed us to understand the distribution and relationship of forest patches in an easy way.

최근린사상법을 활용한 금강서해유역 녹지네트워크 구축에 관한 연구

장갑수,Jang, Gab-Sue 한국조경학회 2007 韓國造景學會誌 Vol.35 No.5

This study used the nearest feature model to connect forest patches within the western Geum River Basin. Due to many different forest patch sizes, 3 alternative methods were tested to determine the best way to establish an ecological network with forest patches. Alternative 1 used all forest patches to determine whether patches were large enough. Alternative 2 used forest patches over 10 ha in size. Alternative 3 used natural conservation indices to select forest patches containing better qualities in the natural conservation level. As a result 635 out of 724 patches of over 10 ha were selected for comparison. Alternative 1 showed that forest patches of less than 10 ha were outliers interrupting the establishment of the ecological network. They generated an unnecessary ecological network to link core areas to comparison features. The ecological network was improved by using forest patches greater than 10 ha in size(Alternative 2). Each comparison feature was much more hierarchically connected to core areas in Alternative 2 than in Alternative 1. Forest patches filtered by natural conservation indices were useful for obtaining the best ecological network. Alternative 3 clearly showed the connections in the ecological network between core areas and forest.