Analysis on the Evolution of Reclamation Space and Benefit-oriented Mechanism of Shenzhen from 1980 to 2020

Abstract

Reclamation space, as an important part connecting land and sea, is a key link in land-sea coordination. Taking Shenzhen as an example, by combing the Landsat remote sensing image data from 1980 to 2020, analyzing the scale of reclamation and the change of coastline and interpreting the background, it is found that the reclamation history in Shenzhen has gone through four stages: independent construction by harbor enterprises under pilot development (1980—1986), expansion of local industrial infrastructure in the separation of government and enterprise (1986—1996), strengthening of the dual role of the government under resource shortage (1996—2010), and consideration of multiple benefits in optimization of stock space (2010—2020). The total reclamation area reaches 91.68 km2, the retention rate of natural coastline has decreased by 49.92%, and the continuous years of reclamation have had a negative impact on the ecological security of the coastal zone. On this basis, this paper points out that the government, as the benefit-oriented policy subject, has had an important impact on its own, corporate and public behavior on reclamation. Finally, based on the experience gained from Shenzhen, the spatial development of other coastal cities should focus on the ecological restoration and benefit compensation of historical reclamation projects and on the trade-off between economic and ecological benefits of new reclamation projects.

Keywords

• reclamation space
• spatial evolution
• benefit-oriented
• driving mechanism