湖泊科学2009，Vol.21Issue(6)：885-890,6.
内蒙古乌梁素海不同形态氮的时空分布
Temporal and spatial distribution of different species of nitrogen in Lake Wuliangsuhai, Inner Mongolia
摘要
Abstract
The temporal and spatial variation characteristics of nitrogen forms are very important for environmental pollution control of lake. Concentrations of different nitrogen forms were studied using the geostatistical analysis module of ArcGIS in Lake Wuliangsuhai. The results indicate that average concentrations of total nitrogen were higher in summer and winter than autumn in seasonal time series, the average concentrations of ammonia nitrogen were lower in summer than autumn and winter, and the average concentration of nitrite nitrogen was higher than nitrate nitrogen in different seasons. In space, concentration distribution of different forms of nitrogen showed gradually decreasing from north to south. In a word, nitrogen pollution is very serious in Lake Wuliangsuhai. The main pollutions were sourced from farm field drainage of the Hetao irrigated areas, industrial waste water and domestic sewage close to main irrigation canal, which caused different forms of nitrogen contents decreases with the discharge of flowing water. However, in the region of density reed and aqnatic, the contents of nitrogen forms will change with increase or decrease.关键词
乌梁素海/不同形态氮/时空分布/ArcGISKey words
Lake Wuliangsuhai/ forms of nitrogen/ spatial-temporal distribution/ ArcGIS分类
天文与地球科学引用本文复制引用
李兴,李畅游,李卫平,史小红,代文婕,勾芒芒..内蒙古乌梁素海不同形态氮的时空分布[J].湖泊科学,2009,21(6):885-890,6.基金项目
国家自然科学基金项目(50569002,50669004)和蒙古自然科学基金重点项目(200711020604)联合资助. （50569002,50669004）
