Ao Yong, Zhang Meng-Na, Zhao Yong-Hua, Wang Xiao-Feng, Bai Zhao-di, Jiang Ling-Feng
School of Land Engineering, Chang'an University, Xi'an 710054, China.
Shaanxi Key Laboratory of Land Consolidation, Xi'an 710054, China.
Ying Yong Sheng Tai Xue Bao. 2022 Jul;33(7):2001-2008. doi: 10.13287/j.1001-9332.202207.027.
With the acceleration of regional economic integration, human activities have played an increasingly crucial role in regional sustainable development. In this study, MODIS remote sensing data and ecological footprint of net primary productivity (EF-NPP) were leveraged to calculate the equivalence factor and yield factor of the six major biologically productive land areas in the Pearl River Delta Urban Agglomeration. We analyzed the changes in per capita ecological footprint, per capita ecological carrying capacity, natural resource utilization efficiency and ecological moderate population from 2000 to 2020. Results showed that the per capita ecological footprint in the Pearl River Delta Urban Agglomeration continued to rise from 2000 to 2020. The ecological occupation of energy land was the highest. The ecological footprint was high in west, low in middle, and higher in northwest of the study area. The per capita ecological carrying capacity was relatively high in Zhaoqing and Jiangmen and low in Shenzhen, Dongguan, Foshan and Zhongshan. The gap between the ecological moderate population and the regional actual population widened over time, reaching 30.62 million in 2020. The regional actual population was much larger than the ecological moderate population, indicating huge population pressure. The natural resource utilization efficiency of the three main industries was high. The economic benefits created by the per capita ecological footprint increased by 36800 yuan·hm during the research period, with an average annual growth rate of 1800 yuan·hm. The growth rate of the tertiary industry was the highest. Therefore, the results could provide reference for the study on natural resource utilization efficiency in medium and small-scale regions.
随着区域经济一体化进程的加速，人类活动在区域可持续发展中发挥着越来越关键的作用。本研究利用MODIS遥感数据和净初级生产力生态足迹（EF-NPP），计算了珠江三角洲城市群六大主要生物生产性土地面积的均衡因子和产量因子。分析了2000年至2020年人均生态足迹、人均生态承载力、自然资源利用效率和生态适度人口的变化。结果表明，2000年至2020年珠江三角洲城市群人均生态足迹持续上升。能源用地的生态占用最高。研究区域西部生态足迹高，中部低，西北部较高。肇庆和江门的人均生态承载力相对较高，深圳、东莞、佛山和中山较低。生态适度人口与区域实际人口的差距随时间不断扩大，2020年达到3062万。区域实际人口远大于生态适度人口，表明人口压力巨大。三大产业的自然资源利用效率较高。研究期间人均生态足迹创造的经济效益增加了36800元·hm，年均增长率为1800元·hm。第三产业增长率最高。因此，研究结果可为中小尺度区域自然资源利用效率研究提供参考。
