Effects of urban green belts on the air temperature, humidity and air quality

As urbanization increases, designing green space that offers ecological benefits is an increasingly important goal of urban planning. As a linear green space in an urban environment, green belts lower air temperature, increase relative humidity, and improve air quality. To quantify the ecological ef...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Chunyang Zhu [verfasserIn] Peng Ji [verfasserIn] Shuhua Li [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2017

Schlagwörter:	green belt width, temperature-humidity (T-RH) negative air ions (NAI) concentration bacteria rate (BR) ecological environment benefit

Übergeordnetes Werk:	In: Journal of Environmental Engineering and Landscape Management - Vilnius Gediminas Technical University, 2018, 25(2017), 1
Übergeordnetes Werk:	volume:25 ; year:2017 ; number:1

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc Journal toc

DOI / URN:	10.3846/16486897.2016.1194276

Katalog-ID:	DOAJ070240485

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spelling	10.3846/16486897.2016.1194276 doi (DE-627)DOAJ070240485 (DE-599)DOAJ86299052173342b8b4123424c6723738 DE-627 ger DE-627 rakwb eng TA170-171 Chunyang Zhu verfasserin aut Effects of urban green belts on the air temperature, humidity and air quality 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As urbanization increases, designing green space that offers ecological benefits is an increasingly important goal of urban planning. As a linear green space in an urban environment, green belts lower air temperature, increase relative humidity, and improve air quality. To quantify the ecological effects of urban green belts and to identify a critical width for effective urban green belts, we analysed the width of urban green belts in terms of their effects on air temperature (T), relative humidity (RH), concentration of negative air ions (NAI) and bacteria rate (BR). The air T, RH and NAI from 8:00 to 18:00 and BR at 9:00 over seven days were investigated on six widths of green belts (0–10 m, 10–20 m, 20–30 m, 30–40 m, 40–50 m and over 50 m) along the west Fourth Ring Road of Beijing in April, July, October and December 2009. We found that (1) the T-RH benefits increased with the width of the green belts, and the 6 m belt had the smallest effect on T-RH, followed by the 16 m and 27 m belts, whereas the effect was obvious with the 34 m belt and conspicuous and stable with the 42 m belt (approximately 80% green coverage) (P < 0.05); (2) the critical width reference value of urban green belts for an obvious effect on the increase in NAI concentration was approximately 42 m (approximately 80% green coverage) (P < 0.05) and the NAI concentration increased with the width of green belts even in July; and (3) the positive effect on the decrease in the BR was greater than the negative effect, the BR decreased with the green belt width and the changes in the brs were stable with the 34 m belt. The results of this study may help urban planners and designers achieve urban green space designs that optimize ecological effects and cultural benefits. green belt width, temperature-humidity (T-RH) negative air ions (NAI) concentration bacteria rate (BR) ecological environment benefit Environmental engineering Peng Ji verfasserin aut Shuhua Li verfasserin aut In Journal of Environmental Engineering and Landscape Management Vilnius Gediminas Technical University, 2018 25(2017), 1 (DE-627)656020164 (DE-600)2602475-5 18224199 nnns volume:25 year:2017 number:1 https://doi.org/10.3846/16486897.2016.1194276 kostenfrei https://doaj.org/article/86299052173342b8b4123424c6723738 kostenfrei http://journals.vgtu.lt/index.php/JEELM/article/view/1612 kostenfrei https://doaj.org/toc/1648-6897 Journal toc kostenfrei https://doaj.org/toc/1822-4199 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 25 2017 1
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allfieldsSound	10.3846/16486897.2016.1194276 doi (DE-627)DOAJ070240485 (DE-599)DOAJ86299052173342b8b4123424c6723738 DE-627 ger DE-627 rakwb eng TA170-171 Chunyang Zhu verfasserin aut Effects of urban green belts on the air temperature, humidity and air quality 2017 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier As urbanization increases, designing green space that offers ecological benefits is an increasingly important goal of urban planning. As a linear green space in an urban environment, green belts lower air temperature, increase relative humidity, and improve air quality. To quantify the ecological effects of urban green belts and to identify a critical width for effective urban green belts, we analysed the width of urban green belts in terms of their effects on air temperature (T), relative humidity (RH), concentration of negative air ions (NAI) and bacteria rate (BR). The air T, RH and NAI from 8:00 to 18:00 and BR at 9:00 over seven days were investigated on six widths of green belts (0–10 m, 10–20 m, 20–30 m, 30–40 m, 40–50 m and over 50 m) along the west Fourth Ring Road of Beijing in April, July, October and December 2009. We found that (1) the T-RH benefits increased with the width of the green belts, and the 6 m belt had the smallest effect on T-RH, followed by the 16 m and 27 m belts, whereas the effect was obvious with the 34 m belt and conspicuous and stable with the 42 m belt (approximately 80% green coverage) (P < 0.05); (2) the critical width reference value of urban green belts for an obvious effect on the increase in NAI concentration was approximately 42 m (approximately 80% green coverage) (P < 0.05) and the NAI concentration increased with the width of green belts even in July; and (3) the positive effect on the decrease in the BR was greater than the negative effect, the BR decreased with the green belt width and the changes in the brs were stable with the 34 m belt. The results of this study may help urban planners and designers achieve urban green space designs that optimize ecological effects and cultural benefits. green belt width, temperature-humidity (T-RH) negative air ions (NAI) concentration bacteria rate (BR) ecological environment benefit Environmental engineering Peng Ji verfasserin aut Shuhua Li verfasserin aut In Journal of Environmental Engineering and Landscape Management Vilnius Gediminas Technical University, 2018 25(2017), 1 (DE-627)656020164 (DE-600)2602475-5 18224199 nnns volume:25 year:2017 number:1 https://doi.org/10.3846/16486897.2016.1194276 kostenfrei https://doaj.org/article/86299052173342b8b4123424c6723738 kostenfrei http://journals.vgtu.lt/index.php/JEELM/article/view/1612 kostenfrei https://doaj.org/toc/1648-6897 Journal toc kostenfrei https://doaj.org/toc/1822-4199 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 25 2017 1
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callnumber-first	T - Technology
author	Chunyang Zhu
spellingShingle	Chunyang Zhu misc TA170-171 misc green belt misc width, temperature-humidity (T-RH) misc negative air ions (NAI) concentration misc bacteria rate (BR) misc ecological environment benefit misc Environmental engineering Effects of urban green belts on the air temperature, humidity and air quality
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topic_title	TA170-171 Effects of urban green belts on the air temperature, humidity and air quality green belt width, temperature-humidity (T-RH) negative air ions (NAI) concentration bacteria rate (BR) ecological environment benefit
topic	misc TA170-171 misc green belt misc width, temperature-humidity (T-RH) misc negative air ions (NAI) concentration misc bacteria rate (BR) misc ecological environment benefit misc Environmental engineering
topic_unstemmed	misc TA170-171 misc green belt misc width, temperature-humidity (T-RH) misc negative air ions (NAI) concentration misc bacteria rate (BR) misc ecological environment benefit misc Environmental engineering
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title	Effects of urban green belts on the air temperature, humidity and air quality
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title_full	Effects of urban green belts on the air temperature, humidity and air quality
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title_sort	effects of urban green belts on the air temperature, humidity and air quality
callnumber	TA170-171
title_auth	Effects of urban green belts on the air temperature, humidity and air quality
abstract	As urbanization increases, designing green space that offers ecological benefits is an increasingly important goal of urban planning. As a linear green space in an urban environment, green belts lower air temperature, increase relative humidity, and improve air quality. To quantify the ecological effects of urban green belts and to identify a critical width for effective urban green belts, we analysed the width of urban green belts in terms of their effects on air temperature (T), relative humidity (RH), concentration of negative air ions (NAI) and bacteria rate (BR). The air T, RH and NAI from 8:00 to 18:00 and BR at 9:00 over seven days were investigated on six widths of green belts (0–10 m, 10–20 m, 20–30 m, 30–40 m, 40–50 m and over 50 m) along the west Fourth Ring Road of Beijing in April, July, October and December 2009. We found that (1) the T-RH benefits increased with the width of the green belts, and the 6 m belt had the smallest effect on T-RH, followed by the 16 m and 27 m belts, whereas the effect was obvious with the 34 m belt and conspicuous and stable with the 42 m belt (approximately 80% green coverage) (P < 0.05); (2) the critical width reference value of urban green belts for an obvious effect on the increase in NAI concentration was approximately 42 m (approximately 80% green coverage) (P < 0.05) and the NAI concentration increased with the width of green belts even in July; and (3) the positive effect on the decrease in the BR was greater than the negative effect, the BR decreased with the green belt width and the changes in the brs were stable with the 34 m belt. The results of this study may help urban planners and designers achieve urban green space designs that optimize ecological effects and cultural benefits.
abstractGer	As urbanization increases, designing green space that offers ecological benefits is an increasingly important goal of urban planning. As a linear green space in an urban environment, green belts lower air temperature, increase relative humidity, and improve air quality. To quantify the ecological effects of urban green belts and to identify a critical width for effective urban green belts, we analysed the width of urban green belts in terms of their effects on air temperature (T), relative humidity (RH), concentration of negative air ions (NAI) and bacteria rate (BR). The air T, RH and NAI from 8:00 to 18:00 and BR at 9:00 over seven days were investigated on six widths of green belts (0–10 m, 10–20 m, 20–30 m, 30–40 m, 40–50 m and over 50 m) along the west Fourth Ring Road of Beijing in April, July, October and December 2009. We found that (1) the T-RH benefits increased with the width of the green belts, and the 6 m belt had the smallest effect on T-RH, followed by the 16 m and 27 m belts, whereas the effect was obvious with the 34 m belt and conspicuous and stable with the 42 m belt (approximately 80% green coverage) (P < 0.05); (2) the critical width reference value of urban green belts for an obvious effect on the increase in NAI concentration was approximately 42 m (approximately 80% green coverage) (P < 0.05) and the NAI concentration increased with the width of green belts even in July; and (3) the positive effect on the decrease in the BR was greater than the negative effect, the BR decreased with the green belt width and the changes in the brs were stable with the 34 m belt. The results of this study may help urban planners and designers achieve urban green space designs that optimize ecological effects and cultural benefits.
abstract_unstemmed	As urbanization increases, designing green space that offers ecological benefits is an increasingly important goal of urban planning. As a linear green space in an urban environment, green belts lower air temperature, increase relative humidity, and improve air quality. To quantify the ecological effects of urban green belts and to identify a critical width for effective urban green belts, we analysed the width of urban green belts in terms of their effects on air temperature (T), relative humidity (RH), concentration of negative air ions (NAI) and bacteria rate (BR). The air T, RH and NAI from 8:00 to 18:00 and BR at 9:00 over seven days were investigated on six widths of green belts (0–10 m, 10–20 m, 20–30 m, 30–40 m, 40–50 m and over 50 m) along the west Fourth Ring Road of Beijing in April, July, October and December 2009. We found that (1) the T-RH benefits increased with the width of the green belts, and the 6 m belt had the smallest effect on T-RH, followed by the 16 m and 27 m belts, whereas the effect was obvious with the 34 m belt and conspicuous and stable with the 42 m belt (approximately 80% green coverage) (P < 0.05); (2) the critical width reference value of urban green belts for an obvious effect on the increase in NAI concentration was approximately 42 m (approximately 80% green coverage) (P < 0.05) and the NAI concentration increased with the width of green belts even in July; and (3) the positive effect on the decrease in the BR was greater than the negative effect, the BR decreased with the green belt width and the changes in the brs were stable with the 34 m belt. The results of this study may help urban planners and designers achieve urban green space designs that optimize ecological effects and cultural benefits.
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title_short	Effects of urban green belts on the air temperature, humidity and air quality
url	https://doi.org/10.3846/16486897.2016.1194276 https://doaj.org/article/86299052173342b8b4123424c6723738 http://journals.vgtu.lt/index.php/JEELM/article/view/1612 https://doaj.org/toc/1648-6897 https://doaj.org/toc/1822-4199
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We found that (1) the T-RH benefits increased with the width of the green belts, and the 6 m belt had the smallest effect on T-RH, followed by the 16 m and 27 m belts, whereas the effect was obvious with the 34 m belt and conspicuous and stable with the 42 m belt (approximately 80% green coverage) (P < 0.05); (2) the critical width reference value of urban green belts for an obvious effect on the increase in NAI concentration was approximately 42 m (approximately 80% green coverage) (P < 0.05) and the NAI concentration increased with the width of green belts even in July; and (3) the positive effect on the decrease in the BR was greater than the negative effect, the BR decreased with the green belt width and the changes in the brs were stable with the 34 m belt. 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Effects of urban green belts on the air temperature, humidity and air quality

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