CARBON STORAGE AND FLUX IN URBAN RESIDENTIAL GREENSPACE
CARBON STORAGE AND FLUX IN URBAN RESIDENTIAL GREENSPACE
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DOI：
10.1006/jema.1995.0062
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发表时间：
1995-10-01
影响因子：
8.7
通讯作者：
MCPHERSON, EG
中科院分区：
文献类型：
--
作者：
JO, HK;MCPHERSON, EG
人们越来越担心未来地球上二氧化碳浓度增加一倍所带来的负面影响。这种担忧引起了人们对城市绿地有助于降低大气碳水平的潜力的兴趣。本研究量化了城市住宅景观与绿地相关的碳储存和年度碳通量。为了详细量化，本研究的规模仅限于芝加哥西北部的两个住宅街区，这两个街区的植被覆盖度存在显着差异。两个街区之间绿地面积和植被覆盖度的差异导致了总碳储量和年碳吸收量的显着差异。研究区块1的绿地总碳储量约为26.15 kg/m(2)，研究区块2的绿地碳储量约为23.20 k/m(2)。其中，区块1和区块2的土壤碳约占78.7%和88.7%。区块1和区块2的乔木和灌木分别占20.8%和10.6%。两个区块中草和其他草本植物的碳储存量约为 0.5-0.7%。所有绿地组成部分对研究街区的年净碳输入总量约为街区 1 绿地 0.49 kg/m(2) 和街区 2 绿地 0.32 kg/m(2)。两个住宅景观绿地的主要净碳排放来自草地维护。探索了绿地规划和管理策略，以尽量减少碳排放并最大限度地增加碳吸收。 (C) 1995 学术出版社有限公司
There is increasing concern about the predicted negative effects of the future doubling of carbon dioxide on the earth. This concern has evoked interest in the potential for urban greenspace to help reduce the levels of atmospheric carbon. This study quantifies greenspace-related carbon storage and annual carbon fluxes for urban residential landscapes. For detailed quantification, the scale of this study was limited to two residential blocks in northwest Chicago which had a significant difference in vegetation cover.Differences between the two blocks in the size of greenspace area and vegetation cover resulted in considerable differences in total carbon storage and annual carbon uptake. Total carbon storage in greenspace was about 26.15 kg/m(2) of greenspace in study block 1, and 23.20 k/m(2) of greenspace in block 2. Of the total, soil carbon accounted for approximately 78.7% in block 1 and 88.7% in block 2. Trees and shrubs in block 1 and block 2 accounted for 20.8% and 10.6%, respectively. The carbon storage in grass and other herbaceous plants was approximately 0.5-0.7% in both blocks. Total net annual carbon input to the study blocks by all the greenspace components was in the region of 0.49 kg/m(2) of greenspace in block 1 and 0.32 kg/m(2) of greenspace in block 2. The principal net carbon release from greenspaces of the two residential landscapes was from grass maintenance. Greenspace planning and management strategies were explored to minimize carbon release and maximize carbon uptake. (C) 1995 Academic Press Limited