中文摘要：

报道了2011年8月及2012年10月采自甘肃尕海的硅藻植物共84个分类单位，包括32属75种9变种，其中4种为中国新记录：Gomphonema laticollum E．Reichardt、Navicula antonii Lange—Bertalot、Navicula seibigiana Lange—Bertalot、Stauroneis reichardii Lange—Bertalot。对尕海硅藻的种类组成、生态特征进行了讨论。

英文摘要：

A total of 84 taxa （ including 32 genera, 75 species and 9 varieties） of diatoms from Gahai Lake were reported in this paper. Of these taxa, 4 species were new records in China： Gomphonema laticollum E. Reichardt, Navicula antonii Lange-Bertalot, Navicula seibigiana Lange-Bertalot, and Stauroneis reichardii Lange-Bertalot. The characteristic of species distribution and ecoloav was discussed.