The Carbon Footprint Accounting and Assessment of Urban Green Space —Taking Guangzhou as an Example

doi:10.13466/j.cnki.lyzygl.2017.02.012

Abstract

Abstract:

Since the urban green space can accumulate organic carbon by photo synthetic,but green space itself will also produce carbon emissions.This increases the difficulty of quantifying urban green space as carbon sinks.With Guangzhou City as an example in this research,the characteristics of urban green spaces and their impact system were revealed,the assessment method for the carbon footprint in the urban green spaces was established,and the contribution of planning and management measures to aggregate carbon reception and emission in urban green spaces was determined.The research results indicated that the carbon reserve in the vegetation and soil in the 7 research zones including green spaces on the roads and in the parks were -0.66~11.22kg C/m ² and 1.65~8.35kgC/m ² respectively,and the carbon emission in the phase of construction,management and maintenance were 0.63~1.78kgC/m ² and 0.01~0.71kgC/(m ²·a)respectively.The total footprint in 7 research zones was -0.263~1.99 kgC/m ².The characteristics of carbon sinks in the parks and the characteristics of carbon emissions on the roads were mostly different.The carbon sinks or emissions of urban green spaces will change with the increase of age.Based on the results,the influence of planning design for green spaces on carbon reception and emission is analyzed and the scientific and low-carbon managerial and regulatory measures for green spaces are put forward.

Key words: urban green space, carbon storage, carbon emissions, carbon footprint, low carbon design, management and planning

CLC Number:

TU985.2
X22

HUANG Liujing, ZHANG Ying, DENG Yirong, LIN Lili, LIU Xingzhao, XIAO Rongbo. The Carbon Footprint Accounting and Assessment of Urban Green Space —Taking Guangzhou as an Example[J]. FOREST RESOURCES WANAGEMENT, 2017, (2): 65-73.

Figures/Tables 11

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References 26

[1]	赵荣钦, 黄贤金, 徐慧 , 等. 城市系统碳循环与碳管理研究进展[J]. 自然资源学报, 2009,24(10):1847-1859. doi: 10.11849/zrzyxb.2009.10.019
[2]	Jo H K . Impacts of urban green space on offsetting carbon emissions for middle Korea[J]. Journal of Environmental Management, 2002,64(2):115-126. doi: 10.1006/jema.2001.0491
[3]	Wiedmann T, Minx J . A definition of ‘carbon footprint’[M]. Ecological Economics Research Trends, 2007,2:55-65.
[4]	Strohbach M W, Arnold E, Haase D . The carbon footprint of urban green space—a life cycle approach[J]. Landscape And Urban Planning, 2012,104:220-229. doi: 10.1016/j.landurbplan.2011.10.013
[5]	Jo H K , McPherson E G.Carbon storage and flux in urban residential green space[J]. Journal of Environmental Management, 1995,45:109-133. doi: 10.1006/jema.1995.0062
[6]	Nowak D J, Crane D E . Carbon storage and sequestration by urban trees in the USA[J]. Environmental Pollution, 2002,116(3):381-389. doi: 10.1016/s0269-7491(01)00214-7 pmid: 11822716
[7]	Nowak D J, Stevens J C, Sisinni S M , et al. Effects of urban tree management and species selection on atmospheric carbon dioxide[J]. Journal of Arboriculture, 2002,28(3):2002.
[8]	李晓曼, 康文星 . 广州市城市森林生态系统固碳功能研究[J]. 中南林业科技大学学报, 2008,28(1):8-13.
[9]	Cairns M A, Brown S, Helmer E H , et al. Root biomass allocation in the world’s upland forests[J]. Oecologia, 1997,111(1):1-11. doi: 10.1007/s004420050201 pmid: 28307494
[10]	陈步峰, 潘永军, 史欣 , 等. 广州市典型森林土壤有机碳密度及储量生态特征[J]. 东北林业大学报, 2010,38(4):60-65.
[11]	孙艳丽, 马建华, 李灿 . 开封市不同功能区城市土壤有机碳含量与密度分析[J]. 地理科学, 2009,29(1):124-128.
[12]	解宪丽, 孙波, 周慧珍 , 等. 中国土壤有机碳密度和储量的估算与空间分布分析[J]. 土壤学报, 2004,41(1):35-43.
[13]	徐艳, 张凤荣, 段增强 , 等. 区域土壤有机碳密度及碳密度计算方法探讨[J]. 土壤通报, 2005,36(6):836-839.
[14]	吕晓涛, 唐建维, 何有才 , 等. 西双版纳热带季节雨林的生物量及其分配特征[J]. 植物生态学报, 2007,31(1):11-22.
[15]	温达志, 魏平 . 鼎湖山锥栗+ 黄果厚壳桂+ 荷木群落生物量及其特征[J]. 生态学报, 1997,17(5):497-504.
[16]	杨昆, 管东生, YANG Kun,等. 森林林下植被生物量收获的样方选择和模型[J]. 生态学报, 2007,27(2):705-714.
[17]	Eggleston S, Buendia L, Miwa K , et al. IPCC2006 Guidelines for national greenhouse gas inventories[M]. Japan:Intergovernmental Panel on Climate Change, 2006.
[18]	中国合同能源管理网,各种能源碳排放参考系数[EB/OL].( 2012- 03- 19)[2016-06-14].http://www.emcsino.com/html/news_info.aspx?id=9267 .
[19]	梁磊, 吕伟娅, 王晓玲 , 等. 节水与低碳排放关联研究[C]//2010中国可持续发展论坛论文集. 北京:中国可持续发展研究会, 2010: 375-377.
[20]	Lal R . Carbon emission from farm operations[J]. Environment international, 2004,30(7):981-990. doi: 10.1016/j.envint.2004.03.005
[21]	Davies Z G, Edmondson J L, Heinemeyer A , et al. Mapping an urban ecosystem service:quantifying above-ground carbon storage at a city-wide scale[J]. Journal of Applied Ecology, 2011,48(5):1125-1134. doi: 10.1111/j.1365-2664.2011.02021.x
[22]	温家石 . 城市化对建成区植被碳吸收和碳储存的影响的研究[D]. 杭州:浙江大学, 2010.
[23]	赖广梅 . 大岭山城市森林公园在东莞低碳城市建设中的碳汇能力[J]. 林业资源管理, 2010(3):34-38.
[24]	刘志武 , 等. 广州岭南花园住宅区生态绿地规划的研究[M]. 广州: 华南理工大学出版社, 2002.
[25]	刘兆云, 章明奎 . 城市绿地年龄对土壤有机碳积累的影响[J]. 生态学杂志, 2010(1):142-145.
[26]	殷利华, 姚忠勇, 万敏 . 园林绿化工程施工阶段碳足迹研究——以武汉光谷大道隙地绿化工程为例[J]. 中国园林, 2012,28(4):66-70.

研究区	区域特征	绿地类型	总面积/hm²	建设年	群落结构	交通影响	人为干扰类型
广州大道(G)	道路中央绿化隔离带	道路绿地	2.15	1999	乔-灌-草	主要交通干道	汽车尾气、油污,垃圾、践踏、人为养护
新港中路(X)	道路中央绿化隔离带	道路绿地	0.18	2009	灌木	主要交通干道新港路的中段	汽车尾气、践踏、人为养护
阅江东路(Y)	道路中央绿化隔离带	道路绿地	0.3	2012	乔-灌-草	次干道, 阅江路的东段	汽车尾气、践踏、人为养护管理
海印公园稀树草坪区(HX)	稀树草坪区	公园绿地	1.24	1991	乔-灌-草	紧邻滨江东路, 受交通影响较大	汽车尾气、人为养护
海印公园密植林区(HM)	密植林区	公园绿地	1.28	1991	乔-草	紧邻滨江东路, 受交通影响较大	汽车尾气、人为养护
敦丰路游园稀树草坪区(DX)	稀树草坪区	公园绿地	0.62	2010	乔-草	周围是居住区, 受交通影响较小	人为养护
敦丰路游园密植林区(DM)	密植林区	公园绿地	0.57	2010	乔-草、乔木纯林	周围是居住区, 受交通影响较小	人为养护

植物种类	径级或冠幅级别	生物量模型	引用来源
大叶榕 Ficus altissima	2<D≤5 cm	B=0.1471D^2.3499	[14]
	5<D≤20 cm	B=0.1815D^2.3222
	D>20 cm	B=0.0932D^2.5602
乔木	D<5 cm	B=0.05549D^2.8776+0.01124D^3.16237+0.01551D^2.32693	[15]
	5<D≤10 cm	B=0.11701D^2.36933+0.01621D^2.93859+0.04169D^1.90082
	10<D≤20 cm	B=0.10769D^2.34891+0.00385D^3.15093+0.00372D^2.65113
	D>20 cm	B=0.03541D^2.65146+0.00583D^2.91383+0.07709D^1.55399
灌木(H≥1m)	C<0.8 m	B=0.01968+0.46533×C×H	[16]
灌木(H≥1m)	0.8<C<1.8 m	B=0.13256+1.02514×C×H	[16]

序号	工序名称	计算边界	计算公式	公式说明
1	挖树穴	挖机油耗	CE_con=∑(Q_柴油×C_柴油)	CEcon(kg)=碳排量 Q柴油(L)=每次柴油耗量 Q汽油(L)=每次汽油耗量 Q(材料)=每次材料的消耗量 C柴油(kgCO₂/L)=柴油碳排放因子 C汽油(kgCO₂/L)=汽油碳排放因子 C材料=材料碳排放因子 D(100 km)=里程 T=每年每种管理措施的次数
2	土壤改良	土方、材料运输油耗	CE_con=∑(D×Q_柴油×C_柴油)
3	苗木运输	苗木运输油耗	CE_con=∑(D×Q_柴油×C_柴油)
4	苗木栽植	吊机油耗	CE_con=∑(Q_柴油×C_柴油)
5	灌溉	自来水生产、运输; 洒水车运输自来水	CE_mai=∑(T×Q_材料×C_材料+D×Q_柴油×C_柴油)
6	施肥	肥料生产、运输; 车辆油耗	CE_mai=∑(T×Q_材料×C_材料+D×Q_柴油×C_柴油)
7	施农药	机械施农药;农药生产、运输;车辆油耗	CE_mai=∑(T×Q_材料×C_材料+T×Q_汽油+T× C_汽油+D×Q_柴油×C_柴油)
8	修剪	机械修剪绿篱、草坪	CE_mai=∑(T×Q_汽油×C_汽油+T×Q_柴油×T_柴油)

分层	HM	G	DX	Y	DM	HX	X
乔木	11.11±1.33^a	9.38±0.51^ab	8.53±2.58^abc	5.26±1.30^bcd	5.08±1.85^cd	2.44±0.95^de	0.00±0.00^e
灌木	0.11±0.07^c	0.26±0.08^b	0.03±0.01^c	0.09±0.02^c	0.01±0.01^c	0.05±0.02^c	0.66±0.05^a
总体	11.22±1.32^a	9.65±0.49^a	8.57±2.58^ab	5.35±1.30^bc	5.09±1.85^bc	2.48±0.94^cd	0.66±0.05^d

研究区名称	绿地年龄/a	CE_con	CE_mai	CS_abo	CS_und	SOC_storage	CF
G	13	0.72	1.52	2.91	0.63	0.39	-1.69
X	3	0.68	1.00	0.57	0.12	0.09	0.90
Y	0.5	1.74	0.36	0.07	0.02	0.02	1.99
HX	21	0.59	0.84	1.13	0.24	0.63	-0.57
HM	21	0.89	0.17	2.52	0.54	0.63	-2.63
DX	2	0.95	0.09	0.32	0.07	0.06	0.59
DM	2	1.10	0.08	2.32	0.50	0.06	-1.70