Urbanization expands the fluctuating difference in gross primary productivity between urban and rural areas from 2000 to 2018 in China
文献类型：期刊论文
| 作者 | Liu, Xiaoyan2,4; Cui, Yaoping2,4; Li, Wanlong4; Li, Mengdi4; Li, Nan4; Shi, Zhifang4; Dong, Jinwei5; Xiao, Xiangming1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2023-11-25 |
| 卷号 | 901页码:166490 |
| 关键词 | Urbanization Gross primary productivity Climate change Human activity Growth offset |
| DOI | 10.1016/j.scitotenv.2023.166490 |
| 文献子类 | Article |
| 英文摘要 | Urban and rural vegetation are affected by both climate change and human activities, but the role of urbanization in vegetation productivity is unclear given the dual impacts. Here, we delineated urban area (UA) and rural area (RA), quantified the relative impacts of climate change and human activities on gross primary production (GPP) in 34 major cities (MCs) in China from 2000 to 2018, and analyzed the intrinsic impacts of urbanization on GPP. First, we found that the total urban impervious surface coverage (ISC) of the 34 MCs increased by 13.25 % and the mean annual GPP increased by 211 gC m 2 during the study period. GPP increased significantly in urban core areas, but decreased significantly in urban expansion areas, which was mainly due to a large amount of vegetation loss due to land use conversion. Second, the variability of GPP in UA was generally lower than in RA. Both climate change and human activities had a positive impact on GPP in UA and RA in the 34 MCs, of which the contribution was 49 % and 51 % in UA, and 76 % and 24 % in RA, respectively. Third, under climate change and human activities, the increase in GPP offset 4.96 % and 12.35 % of the impact of land use conversion on GPP in 2000 and 2018, respectively, which indicated that the offset strengthened over time. These findings emphasize the role of human activities in promoting carbon sequestration in urban vegetation, which is crucial for better understanding the processes and mechanisms of urban carbon cycles. Decision-makers can manage urban vegetation based on vegetation carbon sequestration potential as regions urbanize, aiding comprehensive decision-making. |
| WOS关键词 | NDVI TIME-SERIES ; CLIMATE-CHANGE ; VEGETATION ; IMPACTS ; VARIABILITY ; PHENOLOGY ; PATTERNS ; GROWTH ; REGION |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS记录号 | WOS:001070950500001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/200890]  |
| 专题 | 陆地表层格局与模拟院重点实验室_外文论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Resources, Beijing 100101, Peoples R China 2.Henan Univ, Sch Geog & Environm Sci, Kaifeng 475004, Peoples R China 3.Univ Oklahoma, Ctr Earth Observat & Modeling, Dept Microbiol & Plant Biol, Norman, OK 73019 USA 4.Henan Univ, Key Lab Geospatial Technol, Middle & Lower Yellow River Reg, Minist Educ, Kaifeng 475001, Henan, Peoples R China 5.Dabieshan Natl Observat & Res Field Stn Forest Eco, Zhengzhou 450046, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiaoyan,Cui, Yaoping,Li, Wanlong,et al. Urbanization expands the fluctuating difference in gross primary productivity between urban and rural areas from 2000 to 2018 in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,901:166490. |
| APA | Liu, Xiaoyan.,Cui, Yaoping.,Li, Wanlong.,Li, Mengdi.,Li, Nan.,...&Xiao, Xiangming.(2023).Urbanization expands the fluctuating difference in gross primary productivity between urban and rural areas from 2000 to 2018 in China.SCIENCE OF THE TOTAL ENVIRONMENT,901,166490. |
| MLA | Liu, Xiaoyan,et al."Urbanization expands the fluctuating difference in gross primary productivity between urban and rural areas from 2000 to 2018 in China".SCIENCE OF THE TOTAL ENVIRONMENT 901(2023):166490. |
入库方式： OAI收割
来源：地理科学与资源研究所
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