利用2015年高分辨率遥感数据和地形资料,基本查明了2015年粤港澳大湾区的海岸线、红树林、湿地、耕地、园地、林地、草地、地表水和土地荒漠化等分布现状。2015年粤港澳大湾区大陆海岸线总长度为1 512.18 km,其中人工海岸线占了60.34%。耕地面积为7 820.59 km 2,其中以水田为主要耕地类型,面积为5 934.17 km 2,占耕地面积的75.88%。荒漠化面积为396.80 km 2,以工矿型荒漠化为主,面积为211.26 km 2,占荒漠化面积的53.24%; 其次是水蚀荒漠化,面积为185.51 km 2,占荒漠化面积的46.75%。区内自然资源的相关开发规划与保护治理工作亟需加强。本次研究采用生态足迹法分析数据显示,广州市的海珠区、天河区、黄埔区、番禺区和白云区的西北部,佛山市的南海区、禅城区和顺德区,东莞市北部,深圳市的宝安区、南山区、罗湖区、福田区及龙岗区西北部,惠州市的惠阳区、惠东县西部,中山市,江门市的江海区及珠海市的香洲区相对于其他地区生态承载力较低。
Based on the large quantities of remote sensing data in 2015 and topographic data, the authors studied the interpretation keys and extraction technique of different types of natural resources. In general, the results show the current situation of the natural resources in Guangdong-Hong Kong-Macao Greater Bay Area, such as the shoreline, the mangrove wetlands, the wetlands, the arable land, the garden plot,the forest land, the grassland,the surface water and the desertified lands. The length of the artificial shoreline accounts for 60.34% of the total length of the mainland shoreline, The area of the arable land is 7 820.59 km 2, whereas the area of the desertified lands is 396.80 km 2. Statistics of ecological footprint and eco-capacity in 2015 of Guangdong-Hong Kong-Macao Greater Bay Area show Haizhu District, Tianhe District, Huangpu District, Panyu District and northwestern Baiyun District of Guangzhou, Nanhai District, Chancheng District and Shunde District of Foshan, northern Dongguan, Baoan District, Nanshan District, Luohu District, Futian District and northwestern Longgang District of Shenzhen, Huiyang District of Huizhou, west Huidong County, Zhongshan, Jianghai District of Jiangmen and Xiangzhou District of Zhuhai are inadequate in ecological footprint in terms of eco-capacity and are weak in eco-function.
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