Departament de Ecologia, Facultat de Biologia, Universitat de Barcelona, Av. Diagonal 645, 08028, Barcelona, Spain.
Environ Monit Assess. 2011 Jan;172(1-4):493-505. doi: 10.1007/s10661-010-1349-z. Epub 2010 Feb 17.
Human activities have altered the balance of ecosystems to the detriment of natural environments. Eutrophication is a serious risk in Yucatán, a state in the eastern peninsula of México where groundwater supplies the only freshwater to a karst shelf environment. While economic development in Yucatán is increasing, environmental awareness is lagging, and efficient waste treatment systems are lacking. To assess potential nitrogen and phosphorus inputs into the coastal zone of Yucatán, we analyzed government reports and the chemical composition of groundwater and aquaculture wastewater. Swine, poultry, and tourism are revealed as the main continental nutrient sources, while groundwater with high nitrate concentrations is the principal coastal nutrient source, a pattern similar to other river discharges around the world. This study demonstrates that environmental risk management practices must be implemented in the Yucatán region to protect groundwater quality.
人类活动已经破坏了生态系统的平衡，对自然环境造成了损害。在尤卡坦州，水体富营养化是一个严重的问题，该州位于墨西哥半岛东部，地下水是喀斯特架环境中唯一的淡水来源。随着尤卡坦州经济的发展，环境意识却相对滞后，缺乏有效的废物处理系统。为了评估尤卡坦州沿海地区潜在的氮磷输入，我们分析了政府报告以及地下水和水产养殖废水的化学组成。研究表明，猪、家禽和旅游业是主要的陆源营养物质来源，而硝酸盐浓度高的地下水是主要的沿海营养物质来源，这种模式类似于世界其他河流的排放情况。本研究表明，必须在尤卡坦地区实施环境风险管理实践，以保护地下水质量。
