Guo Yuanhao, Ji Yaou, Sheng Qianqian, Zhang Cheng, Feng Ning, Xu Guodong, Ma Dexing, Yin Qingling, Yuan Yingdong, Zhu Zunling
College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China.
Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China.
Plants (Basel). 2025 Jul 11;14(14):2145. doi: 10.3390/plants14142145.
Port green spaces are essential protective barriers, enhancing safety and environmental resilience in high-activity port regions. Given the intensity of human activities in these areas, understanding the factors influencing the carbon sequestration capacity and ecological benefits of port green spaces is crucial for developing sustainable green ports. This study integrated field investigations and remote sensing data to estimate carbon density and carbon sequestration capacity in the Dongjiakou Port area, examining their relationship with port green space planning. The results indicated that carbon density in green spaces showed a significant negative correlation with the number of lanes in adjacent roads, where an increase in lane numbers corresponded to lower carbon density. Additionally, carbon density decreased significantly with increasing distance from the shipping center. In contrast, a significant positive correlation was observed between carbon density and distance from large water bodies, indicating that green spaces closer to large water bodies exhibited smaller carbon density. Infrastructure development in Dongjiakou substantially negatively impacted vegetation carbon sequestration capacity, with effects not reversible in the short term. However, green space enhancement efforts provided additional ecological benefits, leading to a 50.9 ha increase in green space area. When assessing carbon density in urbanizing areas, geographical influences should be prioritized. Furthermore, the long-term environmental impacts of urban expansion must be considered at the early planning stages, ensuring the implementation of proactive protective measures to mitigate potential ecological disruptions.
港口绿地是重要的防护屏障，可增强高活动量港口区域的安全性和环境恢复力。鉴于这些区域人类活动的强度，了解影响港口绿地碳固存能力和生态效益的因素对于发展可持续绿色港口至关重要。本研究综合实地调查和遥感数据，估算了董家口港区域的碳密度和碳固存能力，并考察了它们与港口绿地规划的关系。结果表明，绿地中的碳密度与相邻道路的车道数呈显著负相关，车道数增加对应碳密度降低。此外，碳密度随着与航运中心距离的增加而显著降低。相反，碳密度与距大型水体的距离呈显著正相关，这表明靠近大型水体的绿地碳密度较小。董家口的基础设施建设对植被碳固存能力产生了重大负面影响，短期内这种影响不可逆转。然而，绿地提升工作带来了额外的生态效益，绿地面积增加了50.9公顷。在评估城市化地区的碳密度时，应优先考虑地理影响因素。此外，在规划早期阶段必须考虑城市扩张的长期环境影响，确保实施积极的保护措施以减轻潜在的生态破坏。
