Impact of urban sprawl on carbon uptake in Beijing metropolitan area

Jie Zhang; Xiaoling Pan; Zhiqiang Gao; Qingdong Shi; Guanghui Lv; Wei Gao

doi:10.1117/12.613220

1 September 2005 Impact of urban sprawl on carbon uptake in Beijing metropolitan area

Jie Zhang, Xiaoling Pan, Zhiqiang Gao, Qingdong Shi, Guanghui Lv, Wei Gao

Proceedings Volume 5884, Remote Sensing and Modeling of Ecosystems for Sustainability II; 58840Z (2005) https://doi.org/10.1117/12.613220
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Increasing populations and economics intensify the urban growth and cropland encroachment in Beijing metropolitan area. In this paper we investigated the effects of recent urban sprawl (1991-2001) in Beijing metropolitan region, People's Republic of China on ecosystem net primary production (NPP). The analysis employed a mechanistic model of NPP in combination with satellite-derived and ecological data. Our analysis shows that urban growth in the 10-year study period significantly altered the urban ecosystem component of the regional carbon cycle. The annual amount of atmospheric carbon assimilated into phytomass through NPP was reduced by approximately 50.71×10⁴ Mg C (-15.08%). More than half of this reduction is attributed to the loss of cultivated land. Vegetation removal and road disturbance by the expansion of urban areas reduced the amount of carbon uptake.

Citation Download Citation

Jie Zhang, Xiaoling Pan, Zhiqiang Gao, Qingdong Shi, Guanghui Lv, and Wei Gao "Impact of urban sprawl on carbon uptake in Beijing metropolitan area", Proc. SPIE 5884, Remote Sensing and Modeling of Ecosystems for Sustainability II, 58840Z (1 September 2005); https://doi.org/10.1117/12.613220

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