干旱牧区水环境质量评价

Water Environmental Quality Assessment for Arid Pastoral Areas

牧区是我国的绿色生态屏障和畜牧业生产基地,牧区水环境质量的优劣不仅事关牧区经济社会的发展,更涉及饮水安全问题。以典型荒漠型草原牧区达茂旗为例,对地表水和地下水环境分别进行水质评价,首先通过单因子评价直观判断,评价结果显示总氮和氟化物是地表水环境中的主要污染因子,而地下水中的普遍污染因子有硝酸盐、亚硝酸盐和氟化物,局部地区氯化物、硫酸盐超标;通过灰色聚类综合评价法评估水污染程度,结果显示达茂旗地表水和地下水环境受污染程度严重。

Pastoral areas are looked as green ecological barrier and animal husbandry production base in China. The water environment quality of pastoral areas relates not only the development of pastoral social and economy, but also the safety of drinking water. The Damao County was taken as an example, and a water quality assessment was made for the ground water and environment with the single factor in- tuitive judgment and assessment. The results showed that the total nitrogen and fluoride are the main pollution factors in surface water en- vironment, and the common groundwater pollution factor has a nitrate, nitrite and fluoride. The gray clustering was used to evaluate the de-gree of water pollution, and the results showed that tile surface water and groundwater environment pollution is serious.