“…Third, reform of China's household registration system also played a role (Wang et al ., ; Fan, ). Fourth, this large‐scale floating population, with its distinct spatial pattern, impacts on economy, society and environment of related regions (Long et al ., ; Liu et al ., ; Liu et al ., ). Therefore, some scholars are interested in the effects of population migration to the origin and destination regions (Partridge et al ., ; Gu and Ma, ; Aunan and Wang, ).…”
China's total floating population exceeded 245 million at the end of 2013 and is the largest mobile population in the world. This paper explores the spatial distribution pattern and change characteristics of the net floating population at county scale from 2000 to 2010 using census data. The results show the following: (1) the net floating population increased by 120 million over 10 years, and the mobility of the population had enhanced in this period; (2) the floating population migrated to the three economic zones and provincial capital cities, while the traditional agricultural regions with dense populations experienced continuous outflow of population (which altered spatial agglomeration patterns); (3) eastern China has a high level of natural environment suitability and was a major destination area, but more pressures were placed on the carrying capacity of big cities; and (4) western China, with a relatively weak carrying capacity for resources and environment, was a net outflow region in 2010 – although five provinces had small‐scale net inflow because of western‐style development strategies. This study is offered as a contribution to understanding the features of China's floating population and will be useful for those shaping policies that guide population migration.
“…Third, reform of China's household registration system also played a role (Wang et al ., ; Fan, ). Fourth, this large‐scale floating population, with its distinct spatial pattern, impacts on economy, society and environment of related regions (Long et al ., ; Liu et al ., ; Liu et al ., ). Therefore, some scholars are interested in the effects of population migration to the origin and destination regions (Partridge et al ., ; Gu and Ma, ; Aunan and Wang, ).…”
China's total floating population exceeded 245 million at the end of 2013 and is the largest mobile population in the world. This paper explores the spatial distribution pattern and change characteristics of the net floating population at county scale from 2000 to 2010 using census data. The results show the following: (1) the net floating population increased by 120 million over 10 years, and the mobility of the population had enhanced in this period; (2) the floating population migrated to the three economic zones and provincial capital cities, while the traditional agricultural regions with dense populations experienced continuous outflow of population (which altered spatial agglomeration patterns); (3) eastern China has a high level of natural environment suitability and was a major destination area, but more pressures were placed on the carrying capacity of big cities; and (4) western China, with a relatively weak carrying capacity for resources and environment, was a net outflow region in 2010 – although five provinces had small‐scale net inflow because of western‐style development strategies. This study is offered as a contribution to understanding the features of China's floating population and will be useful for those shaping policies that guide population migration.
“…Because this wetland not only has unique environmental conditions and economic status, but also has ecological vulnerability, it is a key area of interest for studying the conservation of biodiversity and impact of climate change (Shandong Yellow River Delta National Nature Reserve Administration, 2016). Currently, due to the increase in human activities in the Yellow River Delta, such as excessive land reclamation, coastal engineering, and environmental pollution, the vulnerability of the wetlands has also risen (Fu et al, 2013;Liu et al, 2013). This threat is part of a general trend, of an accelerating impact of human activities and natural factors on the biosphere (Zang et al, 2017), in which wetlands are being degraded and this degradation is irreversible in many cases.…”
The Yellow River Delta wetland is the youngest wetland ecosystem in China's warm temperate zone. To better understand how its landscape pattern has changed over time and the underlying factors responsible, this study analyzed the dynamic changes of wetlands using five Landsat series of images, namely MSS (Mulri Spectral Scanner), TM (Thematic Mapper), and OLI (Operational
“…These preconditions transform the economy leading to a shifting of prime agricultural land towards settlements ( Chen, 2007 ; Dyson, 1996 ; FAO, 2008 ; Maxwell et al., 2000 ; Liu et al., 2014 ; Pauchard et al., 2006 ; Verburg et al., 1999 ). Rapid urbanization changes the land use affecting ecology, development, and food security ( Cao et al., 2020 ; Chen et al., 2010 ; Guo et al., 2012 ; Liu et al., 2013 ; Rijal et al., 2020 ; Youssef et al., 2020 ).…”
The use of soil as support for built-up areas represents only one of its several functions. Farmlands at the fringe of conurbations have more chance of being converted into built-up areas due to the favourable topography and the accessibility to existing infrastructure, being in the vicinity of urban areas. We analysed the global land-take during the period 2000-2014. The data are based on a global dataset describing the spatial evolution of human settlements using the Global Human Settlement Layer, which was derived from Landsat images collected in 1975, 1990, 2000 and 2014. Although the global land-take represents roughly 0.1% of the global terrestrial Earth, it affects 1% of the naturally fertile soils, according to the proposed Soil Productivity Indexes (SPI), based upon the potential soil productivity, calculated on the basis of the Harmonized World Soil Database. We have found that, few large conurbations develop on potentially high productive soil, while scarcely productive soils sustain the expansion of several megalopolises. On a global scale and through the centuries, considered comparatively as individual overall age of settlements, a trend between the intrinsic quality of the soils and its use for settlement purposes as major competitor, was not observed.
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