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引用本文:杨志岩,李畅游,张生,孙标.内蒙古乌梁素海叶绿素a浓度时空分布及其与氮、磷浓度关系.湖泊科学,2009,21(3):429-433. DOI:10.18307/2009.0318
YANG Zhiyan,LI Changyou,ZHANG Sheng,SUN Biao.Temporal and spatial distribution of chlorophyll-a concentration and the relationships with TN, TP concentrations in Lake Ulansuhai, Inner Mongolia. J. Lake Sci.2009,21(3):429-433. DOI:10.18307/2009.0318
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内蒙古乌梁素海叶绿素a浓度时空分布及其与氮、磷浓度关系
杨志岩, 李畅游, 张生, 孙标
内蒙古农业大学, 呼和浩特 010018
摘要:
采用2005-2007年乌梁素海监测数据,对乌梁素海水体中叶绿素a浓度的时空分布进行分析,并对叶绿素a浓度与总氮、总磷浓度相关关系进行研究,结果表明:乌梁素海叶绿素a浓度具有明显的时空分布特征,在时间上,5月份>7、8月份>10月份>9月份>6月份,可以看出5月份、10月份叶绿素a浓度偏高,其原因是乌梁素海特殊的地域性,补水来源主要为河套灌区的农田退水,5月份、10月份正处于春浇秋灌时期,农田退水携带充足的氮磷元素进入乌梁素海,使藻类迅速增长繁殖;在空间上,北部区>南部区.通过分析得出,2006年叶绿素a与氮、磷浓度的相关关系在5月、10月存在明显的相关性,8月份相关性较小,其他月份无明显相关性.
关键词:  乌梁素海  叶绿素a  总氮  总磷  相关关系
DOI:10.18307/2009.0318
分类号:
基金项目:国家自然科学基金项目(50569002,50669004)
Temporal and spatial distribution of chlorophyll-a concentration and the relationships with TN, TP concentrations in Lake Ulansuhai, Inner Mongolia
YANG Zhiyan, LI Changyou, ZHANG Sheng, SUN Biao
Inner Mongolia Agricultural University, Hohhot 010018, P. R. China
Abstract:
This paper based on the conventional monitoring data from in 2005–2007, and studied the distributing of chlorophyll-a with temporal and spatial distribution, and the relationship between the chlorophyll-a and TN, TP concentrations. The results showed that chlorophyll-a concentration appeared obvious temporal and spatial changes, and the values were arranged according to May>July, August>October>September>June. Chlorophyll-a concentration of May and October higher than others. The supply water of Lake Ulansuhai occurred form drainage of Hetao in May and October, and there is a lot of nutrition was bring into Lake Ulansuhai, which induced growth of algae. By analyzing, the relationships between chlorophyll-a concentration and TN and TP concentration appeared evidently in May and October of 2006, and the relationships in August were not remarkable, and no relationship in other months
Key words:  Lake Ulansuhai  chlorophyll-a  TN  TP  relationships
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