Abstract
We used a multidisciplinary approach to assess the vulnerability of a coupled natural and human (CNH) system in Lanzhou, China. Lanzhou’s urban settlement and expansion depended highly on the waterway of the Yellow River and its surrounding geographic setting. Lanzhou’s dramatic fluctuation of population was linked with its position as a bordering city between different geographic regions and the controls of ethnic/cultural groups. During the modern phase (1949 to the present), Lanzhou experienced rapid urban expansion, especially after 1979, propelled by industrialization policies by the national government. However, Lanzhou’s environment degraded seriously with severe air, water, and soil pollution as well as low green coverage and affected urban climate, especially after the 1970s. We argue that geophysical factors, economic regimes, and institutional factors are all crucial in explaining the dynamics of the CNH system in Lanzhou.
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Notes
Consumption-oriented city refers to a city that is dependent on and oriented around consumption, whereas production-oriented city refers to a city that is dependent on and oriented around production. During the socialist period (1949–1978), the Chinese government focused on converting cities into locations of manufacturing facilities, i.e., into production-oriented cities. The government considered that cities before the establishment of the People’s Republic of China were consumption-oriented as cities were locations mostly for services and for consumers to spend money on products and services; cities seldom were locations for manufacturing facilities.
The Chinese government uses an air pollution index (AQI) to indicate the air quality. The calculation is based on the concentration of SO2, NO2, and PM10. The air quality is evaluated by one of the five grades based on the AQI value. Grades I and II refer to excellent and fine air quality, whereas Grades III, IV, and V represent a light, medium, and heavy degree of air pollution, respectively (Qi et al 2012).
China Gansu Net 2013. The Lanzhou Civil Administration Bureau’s Statistics showed that the direct loss from natural disaster reached over $0.437 billion in 2012.
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Acknowledgments
We acknowledge the funding support from the National Aeronautics and Space Administration (NASA)’s Land Cover and Land Use Program through a grant to Michigan State University (NNX09AI32G), the “Urbanization in Asia” Project at the Asian Development Bank (ADB), and the IceMe of NUIST. We thank Yongchun Yang from Lanzhou University for insights on the urban development of Lanzhou. We thank two anonymous reviewers for the constructive and helpful comments on an earlier draft of this paper. Any opinions, findings, and conclusions or recommendations expressed in this paper are those of the authors and do not necessarily reflect the views of NASA or ADB.
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Fan, P., Xie, Y., Qi, J. et al. Vulnerability of a coupled natural and human system in a changing environment: dynamics of Lanzhou’s urban landscape. Landscape Ecol 29, 1709–1723 (2014). https://doi.org/10.1007/s10980-014-0061-8
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DOI: https://doi.org/10.1007/s10980-014-0061-8