【摘要】 为了探索日益增强的旅游活动是否会对黄龙水质产生影响,从2010年4月下旬到11月上旬,以泉水中保守离子Sr2+作为示踪剂,采用野外自动监测、水样采集和室内分析相结合的方法,对黄龙风景区溪流水中Sr2+、PO3-4、NO-3等离子质量浓度做了一个旅游季节的监测;结果表明,在补给泉和相应景点间,水中磷酸盐质量浓度变化趋势呈现明显的差异性,且后者比前者均有所升高,其年平均值在5个景点分别升高2.65、1.94、0.91、0.11和1.35倍,而示踪剂Sr2+离子质量浓度变化趋势则正好相反,说明黄龙风景区溪流水磷酸盐浓度已受到不同程度的外源污染;进一步对比分析各景点磷酸盐、硝酸盐质量浓度与同期游客人数间的关系,结果发现两者间变化趋势呈现明显的一致性;为了排除偶然性因素影响,笔者于2011年对水中磷酸盐质量浓度重新做了上述观测,结果与2010年相似;因此可以推断,黄龙景区溪流水中磷酸盐、硝酸盐质量浓度已明显受到过度旅游活动的影响。更多还原

【Abstract】 To understand growing tourism activities whether has impact on Huanglong water quality,taking conservative ion Sr2 +in spring water as tracer,the authors used automatic logging and water sampling in field combined with laboratory analysis in the wet period of 2010 from late April to early November to study temporal variations in strontium,phosphate and nitrate concentration in stream water. The results showed that the phosphate mass concentration in spring water and stream water has obviously different change trend and the latter is higher than the former,which is 2. 65,1. 94,0. 91,0. 11 and 1. 35 times. Respectively,and the tracer ion Sr2 +mass concentration showed the opposite change trend,so it was concluded that the phosphate mass concentration must be influenced by other pollution source. Further compare on the relationship between phosphate,nitrate mass concentration in stream water and coeval tourist number and the same change trend was showed between them,and it was concluded that the phosphate,nitrate mass concentration in stream water has been influenced by the overburden tourism activities.更多还原