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A study on the variations of pivotal photosynthetic active radiation parameters of a Leymus chinensis meadow-steppe in Hulunber
LI Jin, ZHANG De-gang, ZHANG Hong-bin, LI Gang, YANG Gui-xia, LI Lin-zhi, XIN Xiao-ping
Acta Prataculturae Sinica . 2010, (4): 243 -250 .