The Guangdong-Hong Kong-Macao Greater Bay Area(the Greater Bay Area,the GBA)aims to facilitate in-depth cooperation among the Guangdong,Hong Kong,and Macao regions to create a worldclass bay area-based urban agglomera...The Guangdong-Hong Kong-Macao Greater Bay Area(the Greater Bay Area,the GBA)aims to facilitate in-depth cooperation among the Guangdong,Hong Kong,and Macao regions to create a worldclass bay area-based urban agglomeration.This endeavor seeks to guide China's economy toward high-quality development and comprehensive opening-up.This paper examines the challenges and obstacles faced by Guangdong,Hong Kong,and Macaoregardinggregionalcoordinated development,thus putting forward the following standpoints.It proposes enhancing infrastructure interconnectivity to establish the GBA 1-hour Express Traffic Circle,thereby driving the construction of a worldclass international shipping and logistics hub.Furthermore,the paper advocates for establishing an industrial collaborative development system in the GBA,jointly creatingapilot zoneeforindustrial transformation and upgrading,and further advancing market integration.Creating an international innovation corridor and innovation center for science and technology(S&T)industry is also essential.This initiative would center around critical sectors,improving S&T innovation chain,and building a talent cooperation demonstration zone.The paper also emphasizes the establishment of a transport and logistics hub for the Belt and Road Initiative,along with the joint development of a cultural,economic,and trade exchange platform under the“Belt and Road”framework.Leveraging the comparative advantages of the three regions,the paper underscores the importance of innovative collaboration models,fostering a mutually beneficial and complementary mechanism for synergistic development.These approaches aim to realize the integrated and innovative development of the GBA.展开更多
China has experienced rapid urbanizations with dramatic land cover changes since 1978. Forest loss is one of land cover changes, and it induces various eco-environmental degradation issues. As one of China’s hotspot ...China has experienced rapid urbanizations with dramatic land cover changes since 1978. Forest loss is one of land cover changes, and it induces various eco-environmental degradation issues. As one of China’s hotspot regions, the Guangdong-Hong KongMacao Greater Bay Area(GBA) has undergone a dramatic urban expansion. To better understand forest dynamics and protect forest ecosystem, revealing the processes, patterns and underlying drivers of forest loss is essential. This study focused on the spatiotemporal evolution and potential driving factors of forest loss in the GBA at regional and city level. The Landsat time-series images from 1987 to2017 were used to derive forest, and landscape metrics and geographic information system(GIS) were applied to implement further spatial analysis. The results showed that: 1) 14.86% of the total urban growth area of the GBA was obtained from the forest loss in1987–2017;meanwhile, the forest loss area of the GBA reached 4040.6 km2, of which 25.60%(1034.42 km2) was converted to urban land;2) the percentages of forest loss to urban land in Dongguan(19.14%), Guangzhou(18.35%) and Shenzhen(15.81%) were higher than those in other cities;3) the forest became increasingly fragmented from 1987–2007, and then the fragmentation decreased from2007 to 2017);4) the landscape responses to forest changes varied with the scale;and 5) some forest loss to urban regions moved from low-elevation and gentle-slope terrains to higher-elevation and steep-slope terrains over time, especially in Shenzhen and Hong Kong.Urbanization and industrialization greatly drove forest loss and fragmentation, and, notably, hillside urban land expansion may have contributed to hillside forest loss. The findings will help policy makers in maintaining the stability of forest ecosystems, and provide some new insights into forest management and conservation.展开更多
基金the major program of the National Social Science Foundation of China(No.1420A026)the Think Tank Program of Chinese Academy of Social Sciences(No.CHZK201803).
文摘The Guangdong-Hong Kong-Macao Greater Bay Area(the Greater Bay Area,the GBA)aims to facilitate in-depth cooperation among the Guangdong,Hong Kong,and Macao regions to create a worldclass bay area-based urban agglomeration.This endeavor seeks to guide China's economy toward high-quality development and comprehensive opening-up.This paper examines the challenges and obstacles faced by Guangdong,Hong Kong,and Macaoregardinggregionalcoordinated development,thus putting forward the following standpoints.It proposes enhancing infrastructure interconnectivity to establish the GBA 1-hour Express Traffic Circle,thereby driving the construction of a worldclass international shipping and logistics hub.Furthermore,the paper advocates for establishing an industrial collaborative development system in the GBA,jointly creatingapilot zoneeforindustrial transformation and upgrading,and further advancing market integration.Creating an international innovation corridor and innovation center for science and technology(S&T)industry is also essential.This initiative would center around critical sectors,improving S&T innovation chain,and building a talent cooperation demonstration zone.The paper also emphasizes the establishment of a transport and logistics hub for the Belt and Road Initiative,along with the joint development of a cultural,economic,and trade exchange platform under the“Belt and Road”framework.Leveraging the comparative advantages of the three regions,the paper underscores the importance of innovative collaboration models,fostering a mutually beneficial and complementary mechanism for synergistic development.These approaches aim to realize the integrated and innovative development of the GBA.
基金Under the auspices of National Natural Science Foundation of China(No.41890854)Basic Research Program of Shenzhen Science and Technology Innovation Committee(No.JCYJ20180507182022554)+3 种基金National Key R&D Program of China(No.2017YFC0506200)National Natural Science Foundation of China(No.7181101150)National Natural Science Foundation of China(No.41901248)Shenzhen Future Industry Development Funding Program(No.201507211219247860)。
文摘China has experienced rapid urbanizations with dramatic land cover changes since 1978. Forest loss is one of land cover changes, and it induces various eco-environmental degradation issues. As one of China’s hotspot regions, the Guangdong-Hong KongMacao Greater Bay Area(GBA) has undergone a dramatic urban expansion. To better understand forest dynamics and protect forest ecosystem, revealing the processes, patterns and underlying drivers of forest loss is essential. This study focused on the spatiotemporal evolution and potential driving factors of forest loss in the GBA at regional and city level. The Landsat time-series images from 1987 to2017 were used to derive forest, and landscape metrics and geographic information system(GIS) were applied to implement further spatial analysis. The results showed that: 1) 14.86% of the total urban growth area of the GBA was obtained from the forest loss in1987–2017;meanwhile, the forest loss area of the GBA reached 4040.6 km2, of which 25.60%(1034.42 km2) was converted to urban land;2) the percentages of forest loss to urban land in Dongguan(19.14%), Guangzhou(18.35%) and Shenzhen(15.81%) were higher than those in other cities;3) the forest became increasingly fragmented from 1987–2007, and then the fragmentation decreased from2007 to 2017);4) the landscape responses to forest changes varied with the scale;and 5) some forest loss to urban regions moved from low-elevation and gentle-slope terrains to higher-elevation and steep-slope terrains over time, especially in Shenzhen and Hong Kong.Urbanization and industrialization greatly drove forest loss and fragmentation, and, notably, hillside urban land expansion may have contributed to hillside forest loss. The findings will help policy makers in maintaining the stability of forest ecosystems, and provide some new insights into forest management and conservation.
