城市化对磷循环的影响

Influences of urbanization on phosphorus cycle

城市化过程对于磷循环的影响及其负面生态环境效应是当前资源环境领域的热点研究话题。本文在总结国内外相关研究报道的基础上,重点围绕城市化过程中的各种人为活动对磷循环的影响进行总结,并对未来的发展方向进行展望。从相关的文献报道看,磷循环受到城市化过程中的工业化、社会经济发展和城市空间演化等因素的显著影响,磷矿资源的开采与利用、城市化地区人类生活方式的改变和城市景观格局特征的空间拓展与演化,是城市化地区影响磷循环的重要因子。城市化地区磷循环的各种影响因素还可以通过直接或间接组合作用,改变地表覆盖特征和局部水土过程,共同控制和影响城市化地区的磷循环过程。城市磷问题涉及众多因素,开展综合性的基础研究和探讨问题解决路径,为城市化过程中磷资源开发利用和磷污染问题管控提供指导。

Effects of urbanization on phosphorus cycle and the resultant negative eco-environmental effects have received great attention in the research field of resource and environment.Here,we summarized the impacts of various human activities on phosphorus cycle in the process of urbanization and addressed future research directions.We found that phosphorus cycle in urban areas is mainly affected by three factors,including industrialization,socioeconomic features and urban spatial evolution during urbanization.The exploitation and utilization of phosphate resources,changes in human lifestyle,and spatial expansion and evolution of urban landscape patterns are the three most important factors affecting phosphorus cycle in urbanized areas.These factors intertwined in terms of direct and indirect effects can also change the characteristics of land cover and part of hydrological or soil processes,and jointly control urban phosphorus cycle.Therefore,the urban phosphorus problem is a systematic issue related to various factors.Comprehensive fundamental research combined with searching of problem-solving pathways can provide guidance to manage phosphorus resource along with controlling phosphorus pollution under urbanization.