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首页> 外文期刊>Estuarine Coastal and Shelf Science >Drivers, trends, and potential impacts of long-term coastal reclamation in China from 1985 to 2010
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Drivers, trends, and potential impacts of long-term coastal reclamation in China from 1985 to 2010

机译：1985年至2010年中国长期沿海开垦的动因，趋势和潜在影响

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The reclamation of coastal land for agricultural, industrial, and urban land use-a common worldwide practice-has occurred extensively in the coastal region of China. In recent decades, all coastal provinces and metropolises in China have experienced severe coastal reclamation related to land scarcity caused by rapid economic growth and urbanization. However, the value of coastal wetlands and ecosystems has not been well understood and appreciated until recent development of advantageous methods of restoring reclaimed land to coastal wetlands in many developed countries. The overall objective of this study is to provide detailed spatial and temporal distributions of coastal reclamation; analyze drivers such as coastal economy, population growth, and urbanization; and understand the relationships among the drivers and land reclamation. We used long-term Landsat image time series from 1985 to 2010 in 5-year intervals, in combination with remotely sensed image interpretation and spatial analysis, to map the reclamation status and changes across the coastal region of China. The Landsat images time-series analysis was also conducted to evaluate the effects of the economy, population, and urbanization drivers on coastal reclamation. The analysis results indicated that 754,697 ha of coastal wetlands have been reclaimed across all coastal provinces and metropolises from 1985 to 2010, and the trend increased sharply after 2005. High-intensity coastal reclamation was mainly driven by the booming economy, especially after 2000, associated with urbanization and industrial development in China's coastal region; this was closely correlated with the gross domestic product (GDP) per capita. The continuous large-scale coastal reclamation of its coastal region now means China is facing a great challenge, including the enormous loss of vegetated coastal wetlands, negative environmental effects, and potential disaster risks related to coastal flooding under future change climate conditions. Long-term ecosystem-based coastal protection and management are critical to support sustainable coastal ecosystems in China in the future. (C) 2016 Elsevier Ltd. All rights reserved.
机译：在中国沿海地区，广泛存在一种用于农业，工业和城市土地的沿海土地开垦-这是世界范围内的普遍做法。近几十年来，中国所有沿海省市都经历了与沿海地区因经济快速增长和城市化进程而造成的土地稀缺有关的开垦。但是，直到最近在许多发达国家开发了将开垦土地恢复为沿海湿地的有利方法之后，才对沿海湿地和生态系统的价值进行了很好的理解和认识。这项研究的总体目标是提供沿海开垦的详细时空分布。分析沿海经济，人口增长和城市化等驱动因素；并了解驱动程序和土地开垦之间的关系。我们使用了1985年至2010年的长期Landsat图像时间序列（每5年间隔一次），结合遥感图像解释和空间分析，来绘制中国沿海地区的填海状况和变化。还进行了Landsat图像时间序列分析，以评估经济，人口和城市化驱动因素对沿海填海的影响。分析结果表明，从1985年到2010年，所有沿海省份和大都市都开垦了754,697公顷的沿海湿地，这种趋势在2005年之后急剧增加。高强度沿海开垦主要是由蓬勃发展的经济驱动的，特别是在2000年之后。随着中国沿海地区的城市化和工业发展；这与人均国内生产总值（GDP）密切相关。现在，沿海地区不断进行大规模的沿海开垦，这意味着中国面临着巨大的挑战，包括植被泛滥的沿海湿地的巨大损失，负面的环境影响以及在未来变化的气候条件下与沿海洪水有关的潜在灾害风险。基于生态系统的长期海岸保护和管理对于将来支持中国可持续的沿海生态系统至关重要。 （C）2016 Elsevier Ltd.保留所有权利。

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