<i>PHRAGMITES AUSTRALIS TRIN. EX STEUD</i> PRODUCTIVITY IN THE KHAKASS STEPPE LAKES
The cane production characteristics in the Khakass steppe salt lakes are considered in the article. Comparison of the Ph. australis leaf photosynthetic parameters on all layers by means of PAM fluorometer is conducted. High production is registered for the Phragmites australis community which is located in the Shira lake salt part. The cane communities in the lake desalt part in the Son river mouth were least productive.