气候变化领域集成服务门户(CCPortal): Determining the Dominant Contributions between Direct and Indirect Impacts of Long-Term Urbanization on Plant Net Primary Productivity in Beijing

CCPortal

DOI	10.3390/rs16030444
	Determining the Dominant Contributions between Direct and Indirect Impacts of Long-Term Urbanization on Plant Net Primary Productivity in Beijing
	Chen, Yuan; Lu, Dangui; Xu, Bo; Ren, Rui; Wang, Zhichao; Feng, Zhongke
发表日期	2024
EISSN	2072-4292
起始页码	16
结束页码	3
卷号	16 期号:3
英文摘要	Rapid urbanization exerts noteworthy impacts on the terrestrial ecosystem carbon budget, with pronounced effects in a metropolis such as Beijing, the capital city of China. These impacts include both Direct and Indirect Impacts. For instance, direct impacts influence regional Net Primary Productivity (NPP) by directly altering the vegetation coverage area. Concurrently, indirect impacts primarily affect regional NPP indirectly through climate change and urban vegetation management. How direct and indirect impacts contribute to the NPP is the core content of our research. Owing to that, we need to precisely assess the spatial and seasonal characteristics of the impact of urbanization in Beijing from 2000 to 2020. Firstly, a novel framework was proposed to analyze the impact of urbanization on NPP at the pixel level. Meanwhile, we employ the Proximity Expansion Index (PEI) to analyze urban expansion patterns. Results reveal that the direct impacts led to a cumulative NPP loss of 0.98 TgC, with the largest loss stemming from cropland conversion to construction land. During the last two decades, there has been a 56.87% increase in the area used for urban development in Beijing, a clear sign of swift urban expansion. Concurrently, this urban growth has had favorable indirect effects on NPP, with an average annual increase of 9.76 gC center dot m-2 center dot year-1, mainly observed in urbanized regions. Moreover, the seasonal analysis underscored that indirect impacts were primarily temperature-related, exhibiting higher values during autumn and winter within urban areas, indicating enhanced vegetation growth suitability in urban areas during these seasons. Our findings quantitatively examine the numerical relationship between direct and indirect impacts at a magnitude level. The carbon gain brought about by indirect impacts surpassed the carbon loss induced by direct impacts, with indirect impacts offsetting 29.41% of the carbon loss due to direct impacts. Ultimately, we advocate for enhanced greening initiatives in areas of Beijing with higher indirect impacts to achieve optimal carbon gain. This strategy might effectively reduce the negative impact of rapid urbanization on the carbon budget of terrestrial ecosystems.
英文关键词	urbanization; Net Primary Productivity; urbanization direct impact; urbanization indirect impact; carbon budget; green space planning
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:001159171600001
来源期刊	REMOTE SENSING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/305141
作者单位	Beijing Forestry University; Jiangxi Agricultural University
推荐引用方式 GB/T 7714	Chen, Yuan,Lu, Dangui,Xu, Bo,et al. Determining the Dominant Contributions between Direct and Indirect Impacts of Long-Term Urbanization on Plant Net Primary Productivity in Beijing[J],2024,16(3).
APA	Chen, Yuan,Lu, Dangui,Xu, Bo,Ren, Rui,Wang, Zhichao,&Feng, Zhongke.(2024).Determining the Dominant Contributions between Direct and Indirect Impacts of Long-Term Urbanization on Plant Net Primary Productivity in Beijing.REMOTE SENSING,16(3).
MLA	Chen, Yuan,et al."Determining the Dominant Contributions between Direct and Indirect Impacts of Long-Term Urbanization on Plant Net Primary Productivity in Beijing".REMOTE SENSING 16.3(2024).