<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 <i>Ph. australis</i> leaf photosynthetic parameters on all layers by means of PAM fluorometer is conducted. High production is registered for the <i>Phragmites australis</i> 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.