谢丽纯, 陈建耀, 薛积彬. 珠江三角洲地区磷收支估算研究[J]. 华南师范大学学报(自然科学版), 2014, 46(1): 95-100.
引用本文: 谢丽纯, 陈建耀, 薛积彬. 珠江三角洲地区磷收支估算研究[J]. 华南师范大学学报(自然科学版), 2014, 46(1): 95-100.
Phosphorus Budgets and the Environmental Effects of the Pearl River Delta[J]. Journal of South China Normal University (Natural Science Edition), 2014, 46(1): 95-100.
Citation: Phosphorus Budgets and the Environmental Effects of the Pearl River Delta[J]. Journal of South China Normal University (Natural Science Edition), 2014, 46(1): 95-100.

珠江三角洲地区磷收支估算研究

Phosphorus Budgets and the Environmental Effects of the Pearl River Delta

  • 摘要: 采用2000、2005和2010年3个时期的工业、农业、环保、自然条件和人口等相关数据,对近10年来珠江三角洲地区的磷收支演变及区域差异进行了评估.结果表明,珠三角地区不同时期磷的输入、输出总量变化不一致,其中,2005年磷输入总量比2000年的稍有下降,2010年较2000年略有增加,而磷输出总量则显著减少,从而使单位面积磷盈余量呈现明显的增加趋势.人畜排泄物磷和化肥磷是磷输入的主要来源,而作物收获后带走的磷是磷输出的主要途径.此外,珠三角地区磷收支变化的区域差异显著,深圳、东莞、佛山、广州和中山等城市面临较为严峻的磷污染潜势.

     

    Abstract: Based on the data collection and analysis of the related industries,agriculture,environmental protection,natural conditions and population statistics in the Pearl River Delta(PRD) in the years of 2000,2005 and 2010,respectively,the phosphorus budgets and its regional differences during the past decade are assessed. The results indicate that the phosphorus inputs and outputs varied inconsistently during the last ten years. The phosphorus in- puts decreased in 2005 and increased slightly in 2010 compared with that in 2000,respectively. The phosphorus outputs decreased notably from 2000 until 2010. The amount of phosphorus surpluses in the PRD shows a significant increasing trend during the past decade,and the phosphorus surplus per unit area increases as well. The phosphorus from the excreta of human and animals and the fertilizer phosphorus are two major kinds of phosphorus sources in the PRD,and the phosphorus outputs mainly took place through the crop harvest in the region. Great regional differences exist in the phosphorus budgets of the PRD,several cities such as Shenzhen,Dong- guan,Foshan,Guangzhou and Zhongshan face potential severe phosphorus pollution.

     

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