盘龙江青萍的磷污染指示性研究
Lemna Minor Indicative of Phosphorus Pollution in Panlong River
兰丹 1苏怀 1常玉兰 1李福姗 1张亚楠 1赵宏兵1
作者信息
- 1. 云南师范大学旅游与地理科学学院，云南昆明650500
- 折叠
摘要
[目的]判断青萍是否可以作为盘龙江磷污染的指示性生物。[方法]以青萍作为研究对象，研究青萍对磷的耐受程度，分实验室培养和野外调查。[结果]实验室培养条件下，青萍可以在磷浓度0．1～15．0 mg／L的培养液中正常生长。野外调查盘龙江各采样点磷浓度（0．07～0．47 mg／L）的青萍分布情况：上游河段没有出现，中游河段有出现，下游河段多度增加。[结论]青萍至少可以指示2类水以上的水质，有青萍出现的水体已经受到磷污染。
Abstract
Objective] To study the lemna minor indicative of phosphorus pollution in Panlong River.[Methods] Laboratory cultivation and field survey were carried.[Results] In laboratory cultivation condition: lemna minor can grow normally in culture solution with phosphorus concentration of 0.1 mg/L to 15 mg/L.In field survey condition, the phosphorus concentration at each sampling point in Panlong River was 0.07 mg/L to 0.47 mg/L.Distribution of lemna minor: no distribution in upper reaches, slight distribution in middle reaches, more abun-dance in low reaches.[Conclusion] Lemma minor can indicate the water quality above grade II, and water with appearance of lemna minor in-dicates phosphorus pollution.
关键词
青萍/磷质量浓度/鲜重/指示性物种/野外调查Key words
Lemna minor/Phosphorus concentration/Fresh weight/Indicative species/Field survey引用本文复制引用
基金项目
云南师范大学大学生科研训练项目( ky2014－175)
出版年
2016
国家科技期刊平台
NSTL
维普
万方数据