• Title/Summary/Keyword: 도시숲

Search Result 199, Processing Time 0.039 seconds

Emission Rates of Biogenic Volatile Organic Compounds (BVOCs) from Various Tree Species in Korea (I) (국내 수종별 BVOCs 방출량 (1))

  • Chang, Hanna;Son, Jounga;Je, Sun Mi;Oh, Chang-Young;Cho, Minseok;Kim, Juwan;Kim, Jaehyeon;Choi, Won-Sil;Lee, Young-Kyu
    • Journal of Korean Society of Forest Science
    • /
    • v.110 no.4
    • /
    • pp.543-553
    • /
    • 2021
  • This research focused on the investigation of isoprene and terpene emissions from 30 major urban tree species. We conducted sampling using a specific dynamic enclosure system between August and September 2020. Seedlings less than three years old were enclosed in a chamber consisting of a 400 L transparent Tedlar bag. The air-flows from the chamber's outlet were sampled using Tenax-filled sorbent tubes in the presence of standard conditions (temperature: 30℃, PAR: 1,000 μmol/m2/sec). A thermal desorption GC/MS system was used to analyze 38 BVOC compounds (isoprene, monoterpene, sesquiterpene, oxygenated monoterpene, and sesquiterpene). Isoprene emitters included Phyllostachys bambusoides, Quercus serrata, Daphniphyllum macropodum, and Buxus Koreana. Monoterpene emitters included Pinus rigida, Acer pictum subsp. mono, Larix kaempfer, Magnolia denudata, Metasequoia glyptostroboides, Pinus koraiensis, Pinus densiflora, and Abies holophylla. The monoterpene emission profiles were dominated by α-pinene, myrcene, limonene, β-pinen, and sabinene, while caryophyllene and farnesene were the prominent sesquiterpenes. Predominant oxygenated monoterpene compounds were also discovered as pulegone, borneol, menthol, eucalyptol, and nerol, while caryophyllene oxide were the prominent oxygenated sesquiterpenes. Sesquiterpenes and oxygenated sesquiterpenes had relatively lower contributions for all species.

Analysis of Importance in Available Space for Creating Urban Forests to Reduce Particulate Matter - Using the Analytic Hierarchy Process - (미세먼지 저감 도시숲 조성을 위한 가용공간의 중요도 분석 - AHP 기법을 이용하여 -)

  • Jeong, Dae-Young;Choi, Yun-Eui;Chon, Jin-Hyung
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.47 no.6
    • /
    • pp.103-114
    • /
    • 2019
  • Despite recent projects to create urban forests to reduce the levels of particulate matter, objective evaluation criteria for selecting suitable sites for the projects have not been provided. The purposes of this study are to identify assessment items for the evaluation of available spaces for urban forests for the reduction of particulate matter and to analyze the relative importance of the items using the Analytic Hierarchy Process (AHP). We identified a total of 19 items in five categories through a literature review and a panel discussion. A total of 29 responses were collected from surveys given to experts, and an AHP analysis was conducted on the results. As a result, 'locational characteristics' (0.355) received the highest weighted value among the five categories, followed by 'planting type of existing green space' (0.184), 'weather conditions' (0.183), 'physical characteristics' (0.15), and 'human social environment' (0.128). In addition, among all the assessment items, 'proximity of source apportionment of particulate matter' (0.143) had higher weighted value while 'plantation of existing green space' (0.024) had the lowest weighted value. This study will present objective criteria and directions in the selecting of available spaces to create urban forests for the reduction of particulate matter.

A Study on the Analysis of Influx Factors in Urban Parks Using Data Mining - Focus on Yangjae Citizens' Forest Park - (데이터 마이닝을 활용한 도시공원 유입 요인 분석 연구 - 양재시민의 숲 공원을 대상으로 -)

  • Park Sang Hun
    • Journal of the Korean Regional Science Association
    • /
    • v.39 no.3
    • /
    • pp.35-48
    • /
    • 2023
  • This study analyzed the inflow factors of Yangjae Citizen's Forest Park using social big data generated online. To this end, the applicability of the emotional information analysis method is to be confirmed as a method of analyzing the perception of the city park and confirming the difference in the characteristics and use of the park. The analysis is based on big data, and as the core of the study is keyword network analysis, the methodology of the 'emotional information analysis method' patented by the author was applied. As a result of the analysis, among the influx factors of Yangjae Citizens' Forest recognized by citizens, the most positive emotional factor was derived as a factor related to 'park contents', and the negative emotional factor was derived as a factor related to 'park management'. These research results suggest that more in-depth program development and operation are needed to discover 'park contents' when implementing urban park revitalization support projects in the future

The Direction of School Forest Plans Considering Satisfaction of Elementary Students (초등학생들의 만족 유형을 고려한 학교숲 조성방향)

  • Jang, Cheol-Kyu;Jung, Sung-Gwan;Jang, Jung-Sun;Kim, Kyung-Tae;Oh, Jeong-Hak
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.37 no.4
    • /
    • pp.42-51
    • /
    • 2009
  • The purpose of this study is to analyze the actual conditions of school forests using a field survey and to establish the construction methods considering satisfactions of students using a satisfaction inquiry. The results of the this study are as follows: many trees had the highest score whereas reduction of noise had the lowest score in the satisfaction analysis of 15 items. According to the result of the factor analysis, 3 factors were determined to be most important from 15 items of satisfaction, and they were Environmental Function, Educational and Recreational Function, and Ecological Function. Next, students were classified into 4 groups using factor scores by cluster analysis. Group I had very high effectiveness in the Environmental Function and group II had low effectiveness in all factors. Also, group III had very high effectiveness in the Educational and Recreational Function, and group IV had very high effectiveness in the Ecological Function. According to the analysis results of the character of the school on students' group, the satisfaction of school forests was high when students of group II were few and other group's students were similar. As these schools use a lot of parts of the playground for green space, there was more school forest than at other schools. Also, students of these schools were experiencing the school forest through educational programs. Therefore, school forests should be constructed by increasing the green area and considering the satisfaction factors of students through various experience and education programs and by the way utilizing wide space than adding the tree in the garden.