摘要
青藏高原盐湖赋存着丰富的钾资源元素。近年来,在全球变暖和大规模人工开发背景下,青藏高原盐湖卤水钾含量和矿化度发生显著变化。系统对比了青藏高原31个盐湖近年来和1990s之前卤水的钾离子含量和矿化度变化情况,分析其主要影响因素。结果显示,近年来青藏高原盐湖钾离子含量和矿化度总体呈现下降趋势,但不同盐湖变化程度不同;藏北高原、可可西里高原、西昆仑等地区盐湖主要受气候-构造-水文等自然因素影响,钾离子和矿化度下降明显;柴达木盆地盐湖受资源开发和人为干预等因素影响,卤水钾离子含量下降,而矿化度略有增加。
The salt lakes on the Qinghai-Tibet Plateau are rich in potassium(K) resources. In recent years, under the influence of global warming and large-scale artificial development, the K contents(g/L) and total dissolved solids(TDS) of salt lakes on the Qinghai-Tibet Plateau have changed significantly. This paper compared the K contents and TDS of brines in 31 salt lakes on the Qinghai-Tibet Plateau in recent years and before the 1990 s, and analyzed the influencing factors. The results showed that the K contents and TDS of salt lakes on the Qinghai-Tibet Plateau have generally declined in recent years, but the change rates in different salt lakes are different;the salt lakes in the North Tibet Plateau, Hoh Xil Plateau, and West Kunlun Mountains are mainly influenced by natural factors such as climate, tectonic, hydrology, their K contents and TDS decreased significantly;the salt lakes in the Qaidam Basin are affected by human activities, and the K contents in these salt lakes decreased continuously, while the TDS increased slightly.
作者
李庆宽
山发寿
王建萍
樊启顺
袁秦
秦占杰
LI Qing-kuan;SHAN Fa-shou;WANG Jian-ping;FAN Qi-shun;YUAN Qin;QIN Zhan-jie(Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining,810008,China;Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes,Xining,810008,China)
出处
《盐湖研究》
CAS
CSCD
2022年第2期79-85,共7页
Journal of Salt Lake Research
基金
第二次青藏高原综合科学考察研究项目(2019QZKK0805)
青海省创新平台建设专项(2020-ZJ-T06)
青海省科技厅自然科学基金项目(2021-ZJ-974Q)。
关键词
青藏高原
盐湖
钾资源
矿化度
影响因素
Qinghai-Tibet Plateau
Salt Lakes
Potassium Resources
Total Dissolved Solids
Influencing Factors
